drivers/crypto/amcc/crypto4xx_core.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
-diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
-index 7d6b695c4ab3..3ce5f0a24cbc 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
-@@ -286,7 +286,8 @@ static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev)
+@@ -286,7 +286,8 @@ static u32 crypto4xx_build_gdr(struct cr
static inline void crypto4xx_destroy_gdr(struct crypto4xx_device *dev)
{
sizeof(struct ce_gd) * PPC4XX_NUM_GD,
dev->gdr, dev->gdr_pa);
}
-@@ -354,13 +355,6 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
+@@ -354,13 +355,6 @@ static u32 crypto4xx_build_sdr(struct cr
{
int i;
dev->scatter_buffer_va =
dma_alloc_coherent(dev->core_dev->device,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
-@@ -368,6 +362,13 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
+@@ -368,6 +362,13 @@ static u32 crypto4xx_build_sdr(struct cr
if (!dev->scatter_buffer_va)
return -ENOMEM;
for (i = 0; i < PPC4XX_NUM_SD; i++) {
dev->sdr[i].ptr = dev->scatter_buffer_pa +
PPC4XX_SD_BUFFER_SIZE * i;
-@@ -1439,15 +1440,14 @@ static int crypto4xx_probe(struct platform_device *ofdev)
+@@ -1439,16 +1440,15 @@ static int crypto4xx_probe(struct platfo
spin_lock_init(&core_dev->lock);
INIT_LIST_HEAD(&core_dev->dev->alg_list);
ratelimit_default_init(&core_dev->dev->aead_ratelimit);
+ goto err_build_sdr;
rc = crypto4xx_build_gdr(core_dev->dev);
-- if (rc)
+ if (rc)
- goto err_build_pdr;
-
- rc = crypto4xx_build_sdr(core_dev->dev);
- if (rc)
+- if (rc)
goto err_build_sdr;
-@@ -1493,7 +1493,6 @@ static int crypto4xx_probe(struct platform_device *ofdev)
+ /* Init tasklet for bottom half processing */
+@@ -1493,7 +1493,6 @@ err_iomap:
err_build_sdr:
crypto4xx_destroy_sdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
crypto4xx_destroy_pdr(core_dev->dev);
kfree(core_dev->dev);
err_alloc_dev:
---
-2.25.0.rc0
-
drivers/crypto/amcc/crypto4xx_core.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
-diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
-index 3ce5f0a24cbc..981de43ea5e2 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
-@@ -169,7 +169,7 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
+@@ -169,7 +169,7 @@ static u32 crypto4xx_build_pdr(struct cr
int i;
dev->pdr = dma_alloc_coherent(dev->core_dev->device,
sizeof(struct ce_pd) * PPC4XX_NUM_PD,
if (!dev->pdr)
return -ENOMEM;
-@@ -185,13 +185,13 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
+@@ -185,13 +185,13 @@ static u32 crypto4xx_build_pdr(struct cr
dev->shadow_sa_pool = dma_alloc_coherent(dev->core_dev->device,
sizeof(union shadow_sa_buf) * PPC4XX_NUM_PD,
&dev->shadow_sa_pool_pa,
if (!dev->shadow_sr_pool)
return -ENOMEM;
for (i = 0; i < PPC4XX_NUM_PD; i++) {
-@@ -277,7 +277,7 @@ static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev)
+@@ -277,7 +277,7 @@ static u32 crypto4xx_build_gdr(struct cr
{
dev->gdr = dma_alloc_coherent(dev->core_dev->device,
sizeof(struct ce_gd) * PPC4XX_NUM_GD,
if (!dev->gdr)
return -ENOMEM;
-@@ -358,14 +358,14 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
+@@ -358,14 +358,14 @@ static u32 crypto4xx_build_sdr(struct cr
dev->scatter_buffer_va =
dma_alloc_coherent(dev->core_dev->device,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
if (!dev->sdr)
return -ENOMEM;
---
-2.25.0.rc0
-
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
-@@ -131,6 +131,17 @@ config CANYONLANDS
+@@ -121,6 +121,17 @@ config CANYONLANDS
help
This option enables support for the AMCC PPC460EX evaluation board.
depends on 44x
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
-@@ -50,6 +50,7 @@ machine_device_initcall(ppc44x_simple, p
+@@ -47,6 +47,7 @@ machine_device_initcall(ppc44x_simple, p
* board.c file for it rather than adding it to this list.
*/
static char *board[] __initdata = {
obj-$(CONFIG_WARP) += warp.o
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
-@@ -260,6 +260,19 @@ config ICON
+@@ -243,6 +243,19 @@ config ICON
help
This option enables support for the AMCC PPC440SPe evaluation board.
--- a/arch/powerpc/platforms/4xx/pci.c
+++ b/arch/powerpc/platforms/4xx/pci.c
-@@ -1905,9 +1905,9 @@ static void __init ppc4xx_configure_pcie
+@@ -1904,9 +1904,9 @@ static void __init ppc4xx_configure_pcie
* if it works
*/
out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
#include "xhci.h"
#include "xhci-trace.h"
-@@ -48,6 +50,44 @@
+@@ -56,6 +58,44 @@
#define PCI_DEVICE_ID_AMD_PROMONTORYA_1 0x43bc
#define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI 0x1142
static const char hcd_name[] = "xhci_hcd";
static struct hc_driver __read_mostly xhci_pci_hc_driver;
-@@ -262,6 +302,873 @@ static void xhci_pme_acpi_rtd3_enable(st
+@@ -281,6 +321,873 @@ static void xhci_pme_acpi_rtd3_enable(st
static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
#endif /* CONFIG_ACPI */
/* called during probe() after chip reset completes */
static int xhci_pci_setup(struct usb_hcd *hcd)
{
-@@ -300,6 +1207,27 @@ static int xhci_pci_probe(struct pci_dev
+@@ -319,6 +1226,27 @@ static int xhci_pci_probe(struct pci_dev
struct hc_driver *driver;
struct usb_hcd *hcd;
driver = (struct hc_driver *)id->driver_data;
/* Prevent runtime suspending between USB-2 and USB-3 initialization */
-@@ -361,6 +1289,16 @@ static void xhci_pci_remove(struct pci_d
+@@ -383,6 +1311,16 @@ static void xhci_pci_remove(struct pci_d
{
struct xhci_hcd *xhci;
+
xhci = hcd_to_xhci(pci_get_drvdata(dev));
xhci->xhc_state |= XHCI_STATE_REMOVING;
- if (xhci->shared_hcd) {
-@@ -484,6 +1422,11 @@ static int xhci_pci_resume(struct usb_hc
+
+@@ -510,6 +1448,11 @@ static int xhci_pci_resume(struct usb_hc
if (pdev->vendor == PCI_VENDOR_ID_INTEL)
usb_enable_intel_xhci_ports(pdev);
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
-@@ -215,6 +215,7 @@ static void xhci_pci_quirks(struct devic
+@@ -272,6 +272,7 @@ static void xhci_pci_quirks(struct devic
pdev->device == 0x0015) {
xhci->quirks |= XHCI_RESET_ON_RESUME;
xhci->quirks |= XHCI_ZERO_64B_REGS;
xhci->quirks |= XHCI_RESET_ON_RESUME;
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
-@@ -422,10 +422,14 @@ static int xhci_try_enable_msi(struct us
+@@ -423,10 +423,14 @@ static int xhci_try_enable_msi(struct us
free_irq(hcd->irq, hcd);
hcd->irq = 0;
hcd->msi_enabled = 1;
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
-@@ -1876,6 +1876,7 @@ struct xhci_hcd {
- /* support xHCI 0.96 spec USB2 software LPM */
- unsigned sw_lpm_support:1;
+@@ -1874,6 +1874,7 @@ struct xhci_hcd {
+ struct xhci_hub usb2_rhub;
+ struct xhci_hub usb3_rhub;
/* support xHCI 1.0 spec USB2 hardware LPM */
+#define XHCI_FORCE_MSI (1 << 24)
unsigned hw_lpm_support:1;
--- a/drivers/hwmon/tc654.c
+++ b/drivers/hwmon/tc654.c
-@@ -64,6 +64,11 @@ enum tc654_regs {
+@@ -55,6 +55,11 @@ enum tc654_regs {
/* Register data is read (and cached) at most once per second. */
#define TC654_UPDATE_INTERVAL HZ
struct tc654_data {
struct i2c_client *client;
-@@ -497,6 +502,29 @@ static const struct i2c_device_id tc654_
+@@ -482,6 +487,29 @@ static const struct i2c_device_id tc654_
{}
};
MODULE_DEVICE_TABLE(i2c, tc654_id);
static struct i2c_driver tc654_driver = {
-@@ -505,6 +533,7 @@ static struct i2c_driver tc654_driver =
+@@ -490,6 +518,7 @@ static struct i2c_driver tc654_driver =
},
.probe = tc654_probe,
.id_table = tc654_id,
drivers/hwmon/tc654.c | 103 +++++++++++++++++++++++++++++++++++-------
1 file changed, 86 insertions(+), 17 deletions(-)
-diff --git a/drivers/hwmon/tc654.c b/drivers/hwmon/tc654.c
-index c7939b7c417b..66e6bbe795a5 100644
--- a/drivers/hwmon/tc654.c
+++ b/drivers/hwmon/tc654.c
@@ -15,6 +15,7 @@
};
/* helper to grab and cache data, at most one time per second */
-@@ -367,36 +371,30 @@ static ssize_t pwm_mode_store(struct device *dev, struct device_attribute *da,
+@@ -367,36 +371,30 @@ static ssize_t pwm_mode_store(struct dev
static const int tc654_pwm_map[16] = { 77, 88, 102, 112, 124, 136, 148, 160,
172, 184, 196, 207, 219, 231, 243, 255};
mutex_lock(&data->update_lock);
if (val == 0)
-@@ -416,6 +414,22 @@ static ssize_t pwm_store(struct device *dev, struct device_attribute *da,
+@@ -416,6 +414,22 @@ static ssize_t pwm_store(struct device *
out:
mutex_unlock(&data->update_lock);
return ret < 0 ? ret : count;
}
-@@ -447,6 +461,47 @@ static struct attribute *tc654_attrs[] = {
+@@ -447,6 +461,47 @@ static struct attribute *tc654_attrs[] =
ATTRIBUTE_GROUPS(tc654);
/*
* device probe and removal
*/
-@@ -478,7 +533,21 @@ static int tc654_probe(struct i2c_client *client,
+@@ -478,7 +533,21 @@ static int tc654_probe(struct i2c_client
hwmon_dev =
devm_hwmon_device_register_with_groups(dev, client->name, data,
tc654_groups);
}
static const struct i2c_device_id tc654_id[] = {
---
-2.24.0
-
arch/powerpc/boot/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
-diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
-index dfbd7f22eef5..0bdef8e5f362 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -254,7 +254,7 @@ compressor-$(CONFIG_KERNEL_LZO) := lzo
$(CROSSWRAP) $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) \
vmlinux
---
-2.24.0
-
FEATURES:=ramdisk
KERNEL_PATCHVER:=4.19
+KERNEL_TESTING_PATCHVER:=5.4
include $(INCLUDE_DIR)/target.mk
--- /dev/null
+CONFIG_64BIT_TIME=y
+CONFIG_AG71XX=y
+CONFIG_AR8216_PHY=y
+CONFIG_AR8216_PHY_LEDS=y
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_HAS_DMA_COHERENT_TO_PFN=y
+CONFIG_ARCH_HAS_DMA_PREP_COHERENT=y
+CONFIG_ARCH_HAS_DMA_WRITE_COMBINE=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_RESET_CONTROLLER=y
+CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
+CONFIG_ARCH_HAS_UNCACHED_SEGMENT=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MMAP_RND_BITS_MAX=15
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_USE_MEMREMAP_PROT=y
+CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
+CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
+CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ATH79=y
+CONFIG_ATH79_WDT=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_CEVT_R4K=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="rootfstype=squashfs,jffs2"
+CONFIG_CMDLINE_BOOL=y
+# CONFIG_CMDLINE_OVERRIDE is not set
+CONFIG_COMMON_CLK=y
+# CONFIG_COMMON_CLK_BOSTON is not set
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_CPU_GENERIC_DUMP_TLB=y
+CONFIG_CPU_HAS_LOAD_STORE_LR=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_RIXI=y
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_CPU_MIPSR2=y
+CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
+CONFIG_CPU_R4K_CACHE_TLB=y
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+CONFIG_CPU_SUPPORTS_MSA=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CSRC_R4K=y
+CONFIG_DMA_DECLARE_COHERENT=y
+CONFIG_DMA_NONCOHERENT=y
+CONFIG_DMA_NONCOHERENT_CACHE_SYNC=y
+CONFIG_DTC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_EFI_EARLYCON=y
+CONFIG_ETHERNET_PACKET_MANGLE=y
+CONFIG_FIXED_PHY=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_AUTOSELECT=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IOMAP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_LIB_ASHLDI3=y
+CONFIG_GENERIC_LIB_ASHRDI3=y
+CONFIG_GENERIC_LIB_CMPDI2=y
+CONFIG_GENERIC_LIB_LSHRDI3=y
+CONFIG_GENERIC_LIB_UCMPDI2=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_74X164=y
+CONFIG_GPIO_ATH79=y
+CONFIG_GPIO_GENERIC=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDWARE_WATCHPOINTS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAVE_ARCH_COMPILER_H=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_ASM_MODVERSIONS=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_COPY_THREAD_TLS=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FAST_GUP=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_VDSO=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_KVM=y
+CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PCI=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_IMAGE_CMDLINE_HACK=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_MIPS_CPU=y
+CONFIG_IRQ_WORK=y
+CONFIG_KASAN_STACK=1
+CONFIG_LEDS_GPIO=y
+# CONFIG_LEDS_RESET is not set
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_MDIO_BITBANG=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_GPIO=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGRATION=y
+CONFIG_MIPS=y
+CONFIG_MIPS_ASID_BITS=8
+CONFIG_MIPS_ASID_SHIFT=0
+CONFIG_MIPS_CLOCK_VSYSCALL=y
+# CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND is not set
+# CONFIG_MIPS_CMDLINE_DTB_EXTEND is not set
+# CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER is not set
+CONFIG_MIPS_CMDLINE_FROM_DTB=y
+# CONFIG_MIPS_ELF_APPENDED_DTB is not set
+CONFIG_MIPS_L1_CACHE_SHIFT=5
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
+CONFIG_MIPS_SPRAM=y
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_GEOMETRY=y
+# CONFIG_MTD_CFI_I2 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_MAP_BANK_WIDTH_1 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_4 is not set
+CONFIG_MTD_PARSER_CYBERTAN=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPLIT_LZMA_FW=y
+CONFIG_MTD_SPLIT_SEAMA_FW=y
+CONFIG_MTD_SPLIT_TPLINK_FW=y
+CONFIG_MTD_SPLIT_UIMAGE_FW=y
+CONFIG_MTD_TPLINK_PARTS=y
+CONFIG_MTD_VIRT_CONCAT=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y
+CONFIG_NVMEM=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_PCI=y
+CONFIG_PCI_AR71XX=y
+CONFIG_PCI_AR724X=y
+CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DRIVERS_LEGACY=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+# CONFIG_PHY_AR7100_USB is not set
+# CONFIG_PHY_AR7200_USB is not set
+# CONFIG_PHY_ATH79_USB is not set
+CONFIG_PINCTRL=y
+CONFIG_RATIONAL=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_RESET_ATH79=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
+CONFIG_SERIAL_AR933X=y
+CONFIG_SERIAL_AR933X_CONSOLE=y
+CONFIG_SERIAL_AR933X_NR_UARTS=2
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SPI=y
+CONFIG_SPI_AR934X=y
+CONFIG_SPI_ATH79=y
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_GPIO=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_MEM=y
+# CONFIG_SPI_RB4XX is not set
+CONFIG_SRCU=y
+CONFIG_SWCONFIG=y
+CONFIG_SWCONFIG_LEDS=y
+CONFIG_SWPHY=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_HAS_CPU_MIPS32_R2=y
+CONFIG_SYS_HAS_EARLY_PRINTK=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
+CONFIG_SYS_SUPPORTS_MIPS16=y
+CONFIG_SYS_SUPPORTS_ZBOOT=y
+CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM=y
+CONFIG_TARGET_ISA_REV=2
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TINY_SRCU=y
+CONFIG_UBSAN_ALIGNMENT=y
+CONFIG_UNIX_SCM=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USE_OF=y
--- /dev/null
+config AG71XX
+ tristate "Atheros AR7XXX/AR9XXX built-in ethernet mac support"
+ depends on ATH79
+ select PHYLIB
+ help
+ If you wish to compile a kernel for AR7XXX/91XXX and enable
+ ethernet support, then you should always answer Y to this.
+
+if AG71XX
+
+config AG71XX_DEBUG
+ bool "Atheros AR71xx built-in ethernet driver debugging"
+ default n
+ help
+ Atheros AR71xx built-in ethernet driver debugging messages.
+
+config AG71XX_DEBUG_FS
+ bool "Atheros AR71xx built-in ethernet driver debugfs support"
+ depends on DEBUG_FS
+ default n
+ help
+ Say Y, if you need access to various statistics provided by
+ the ag71xx driver.
+
+endif
--- /dev/null
+#
+# Makefile for the Atheros AR71xx built-in ethernet macs
+#
+
+ag71xx-y += ag71xx_main.o
+ag71xx-y += ag71xx_gmac.o
+ag71xx-y += ag71xx_ethtool.o
+ag71xx-y += ag71xx_phy.o
+
+ag71xx-$(CONFIG_AG71XX_DEBUG_FS) += ag71xx_debugfs.o
+
+obj-$(CONFIG_AG71XX) += ag71xx_mdio.o
+obj-$(CONFIG_AG71XX) += ag71xx.o
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Based on Atheros' AG7100 driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef __AG71XX_H
+#define __AG71XX_H
+
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/phy.h>
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <linux/reset.h>
+#include <linux/of.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+#include <linux/bitops.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+
+#define AG71XX_DRV_NAME "ag71xx"
+
+/*
+ * For our NAPI weight bigger does *NOT* mean better - it means more
+ * D-cache misses and lots more wasted cycles than we'll ever
+ * possibly gain from saving instructions.
+ */
+#define AG71XX_NAPI_WEIGHT 32
+#define AG71XX_OOM_REFILL (1 + HZ/10)
+
+#define AG71XX_INT_ERR (AG71XX_INT_RX_BE | AG71XX_INT_TX_BE)
+#define AG71XX_INT_TX (AG71XX_INT_TX_PS)
+#define AG71XX_INT_RX (AG71XX_INT_RX_PR | AG71XX_INT_RX_OF)
+
+#define AG71XX_INT_POLL (AG71XX_INT_RX | AG71XX_INT_TX)
+#define AG71XX_INT_INIT (AG71XX_INT_ERR | AG71XX_INT_POLL)
+
+#define AG71XX_TX_MTU_LEN 1540
+
+#define AG71XX_TX_RING_SPLIT 512
+#define AG71XX_TX_RING_DS_PER_PKT DIV_ROUND_UP(AG71XX_TX_MTU_LEN, \
+ AG71XX_TX_RING_SPLIT)
+#define AG71XX_TX_RING_SIZE_DEFAULT 128
+#define AG71XX_RX_RING_SIZE_DEFAULT 256
+
+#define AG71XX_TX_RING_SIZE_MAX 128
+#define AG71XX_RX_RING_SIZE_MAX 256
+
+#ifdef CONFIG_AG71XX_DEBUG
+#define DBG(fmt, args...) pr_debug(fmt, ## args)
+#else
+#define DBG(fmt, args...) do {} while (0)
+#endif
+
+#define ag71xx_assert(_cond) \
+do { \
+ if (_cond) \
+ break; \
+ printk("%s,%d: assertion failed\n", __FILE__, __LINE__); \
+ BUG(); \
+} while (0)
+
+struct ag71xx_desc {
+ u32 data;
+ u32 ctrl;
+#define DESC_EMPTY BIT(31)
+#define DESC_MORE BIT(24)
+#define DESC_PKTLEN_M 0xfff
+ u32 next;
+ u32 pad;
+} __attribute__((aligned(4)));
+
+#define AG71XX_DESC_SIZE roundup(sizeof(struct ag71xx_desc), \
+ L1_CACHE_BYTES)
+
+struct ag71xx_buf {
+ union {
+ struct sk_buff *skb;
+ void *rx_buf;
+ };
+ union {
+ dma_addr_t dma_addr;
+ unsigned int len;
+ };
+};
+
+struct ag71xx_ring {
+ struct ag71xx_buf *buf;
+ u8 *descs_cpu;
+ dma_addr_t descs_dma;
+ u16 desc_split;
+ u16 order;
+ unsigned int curr;
+ unsigned int dirty;
+};
+
+struct ag71xx_int_stats {
+ unsigned long rx_pr;
+ unsigned long rx_be;
+ unsigned long rx_of;
+ unsigned long tx_ps;
+ unsigned long tx_be;
+ unsigned long tx_ur;
+ unsigned long total;
+};
+
+struct ag71xx_napi_stats {
+ unsigned long napi_calls;
+ unsigned long rx_count;
+ unsigned long rx_packets;
+ unsigned long rx_packets_max;
+ unsigned long tx_count;
+ unsigned long tx_packets;
+ unsigned long tx_packets_max;
+
+ unsigned long rx[AG71XX_NAPI_WEIGHT + 1];
+ unsigned long tx[AG71XX_NAPI_WEIGHT + 1];
+};
+
+struct ag71xx_debug {
+ struct dentry *debugfs_dir;
+
+ struct ag71xx_int_stats int_stats;
+ struct ag71xx_napi_stats napi_stats;
+};
+
+struct ag71xx {
+ /*
+ * Critical data related to the per-packet data path are clustered
+ * early in this structure to help improve the D-cache footprint.
+ */
+ struct ag71xx_ring rx_ring ____cacheline_aligned;
+ struct ag71xx_ring tx_ring ____cacheline_aligned;
+
+ int mac_idx;
+
+ u16 desc_pktlen_mask;
+ u16 rx_buf_size;
+ u8 rx_buf_offset;
+ u8 tx_hang_workaround:1;
+
+ struct net_device *dev;
+ struct platform_device *pdev;
+ spinlock_t lock;
+ struct napi_struct napi;
+ u32 msg_enable;
+
+ /*
+ * From this point onwards we're not looking at per-packet fields.
+ */
+ void __iomem *mac_base;
+ void __iomem *mii_base;
+
+ struct ag71xx_desc *stop_desc;
+ dma_addr_t stop_desc_dma;
+
+ struct phy_device *phy_dev;
+ void *phy_priv;
+ int phy_if_mode;
+
+ unsigned int link;
+ unsigned int speed;
+ int duplex;
+
+ struct delayed_work restart_work;
+ struct timer_list oom_timer;
+
+ struct reset_control *mac_reset;
+ struct reset_control *mdio_reset;
+
+ u32 fifodata[3];
+ u32 plldata[3];
+ u32 pllreg[3];
+ struct regmap *pllregmap;
+
+#ifdef CONFIG_AG71XX_DEBUG_FS
+ struct ag71xx_debug debug;
+#endif
+};
+
+struct ag71xx_mdio {
+ struct reset_control *mdio_reset;
+ struct mii_bus *mii_bus;
+ struct regmap *mii_regmap;
+};
+
+extern struct ethtool_ops ag71xx_ethtool_ops;
+void ag71xx_link_adjust(struct ag71xx *ag);
+
+int ag71xx_phy_connect(struct ag71xx *ag);
+void ag71xx_phy_disconnect(struct ag71xx *ag);
+
+static inline int ag71xx_desc_empty(struct ag71xx_desc *desc)
+{
+ return (desc->ctrl & DESC_EMPTY) != 0;
+}
+
+static inline struct ag71xx_desc *
+ag71xx_ring_desc(struct ag71xx_ring *ring, int idx)
+{
+ return (struct ag71xx_desc *) &ring->descs_cpu[idx * AG71XX_DESC_SIZE];
+}
+
+static inline int
+ag71xx_ring_size_order(int size)
+{
+ return fls(size - 1);
+}
+
+/* Register offsets */
+#define AG71XX_REG_MAC_CFG1 0x0000
+#define AG71XX_REG_MAC_CFG2 0x0004
+#define AG71XX_REG_MAC_IPG 0x0008
+#define AG71XX_REG_MAC_HDX 0x000c
+#define AG71XX_REG_MAC_MFL 0x0010
+#define AG71XX_REG_MII_CFG 0x0020
+#define AG71XX_REG_MII_CMD 0x0024
+#define AG71XX_REG_MII_ADDR 0x0028
+#define AG71XX_REG_MII_CTRL 0x002c
+#define AG71XX_REG_MII_STATUS 0x0030
+#define AG71XX_REG_MII_IND 0x0034
+#define AG71XX_REG_MAC_IFCTL 0x0038
+#define AG71XX_REG_MAC_ADDR1 0x0040
+#define AG71XX_REG_MAC_ADDR2 0x0044
+#define AG71XX_REG_FIFO_CFG0 0x0048
+#define AG71XX_REG_FIFO_CFG1 0x004c
+#define AG71XX_REG_FIFO_CFG2 0x0050
+#define AG71XX_REG_FIFO_CFG3 0x0054
+#define AG71XX_REG_FIFO_CFG4 0x0058
+#define AG71XX_REG_FIFO_CFG5 0x005c
+#define AG71XX_REG_FIFO_RAM0 0x0060
+#define AG71XX_REG_FIFO_RAM1 0x0064
+#define AG71XX_REG_FIFO_RAM2 0x0068
+#define AG71XX_REG_FIFO_RAM3 0x006c
+#define AG71XX_REG_FIFO_RAM4 0x0070
+#define AG71XX_REG_FIFO_RAM5 0x0074
+#define AG71XX_REG_FIFO_RAM6 0x0078
+#define AG71XX_REG_FIFO_RAM7 0x007c
+
+#define AG71XX_REG_TX_CTRL 0x0180
+#define AG71XX_REG_TX_DESC 0x0184
+#define AG71XX_REG_TX_STATUS 0x0188
+#define AG71XX_REG_RX_CTRL 0x018c
+#define AG71XX_REG_RX_DESC 0x0190
+#define AG71XX_REG_RX_STATUS 0x0194
+#define AG71XX_REG_INT_ENABLE 0x0198
+#define AG71XX_REG_INT_STATUS 0x019c
+
+#define AG71XX_REG_FIFO_DEPTH 0x01a8
+#define AG71XX_REG_RX_SM 0x01b0
+#define AG71XX_REG_TX_SM 0x01b4
+
+#define MAC_CFG1_TXE BIT(0) /* Tx Enable */
+#define MAC_CFG1_STX BIT(1) /* Synchronize Tx Enable */
+#define MAC_CFG1_RXE BIT(2) /* Rx Enable */
+#define MAC_CFG1_SRX BIT(3) /* Synchronize Rx Enable */
+#define MAC_CFG1_TFC BIT(4) /* Tx Flow Control Enable */
+#define MAC_CFG1_RFC BIT(5) /* Rx Flow Control Enable */
+#define MAC_CFG1_LB BIT(8) /* Loopback mode */
+#define MAC_CFG1_SR BIT(31) /* Soft Reset */
+
+#define MAC_CFG2_FDX BIT(0)
+#define MAC_CFG2_CRC_EN BIT(1)
+#define MAC_CFG2_PAD_CRC_EN BIT(2)
+#define MAC_CFG2_LEN_CHECK BIT(4)
+#define MAC_CFG2_HUGE_FRAME_EN BIT(5)
+#define MAC_CFG2_IF_1000 BIT(9)
+#define MAC_CFG2_IF_10_100 BIT(8)
+
+#define FIFO_CFG0_WTM BIT(0) /* Watermark Module */
+#define FIFO_CFG0_RXS BIT(1) /* Rx System Module */
+#define FIFO_CFG0_RXF BIT(2) /* Rx Fabric Module */
+#define FIFO_CFG0_TXS BIT(3) /* Tx System Module */
+#define FIFO_CFG0_TXF BIT(4) /* Tx Fabric Module */
+#define FIFO_CFG0_ALL (FIFO_CFG0_WTM | FIFO_CFG0_RXS | FIFO_CFG0_RXF \
+ | FIFO_CFG0_TXS | FIFO_CFG0_TXF)
+
+#define FIFO_CFG0_ENABLE_SHIFT 8
+
+#define FIFO_CFG4_DE BIT(0) /* Drop Event */
+#define FIFO_CFG4_DV BIT(1) /* RX_DV Event */
+#define FIFO_CFG4_FC BIT(2) /* False Carrier */
+#define FIFO_CFG4_CE BIT(3) /* Code Error */
+#define FIFO_CFG4_CR BIT(4) /* CRC error */
+#define FIFO_CFG4_LM BIT(5) /* Length Mismatch */
+#define FIFO_CFG4_LO BIT(6) /* Length out of range */
+#define FIFO_CFG4_OK BIT(7) /* Packet is OK */
+#define FIFO_CFG4_MC BIT(8) /* Multicast Packet */
+#define FIFO_CFG4_BC BIT(9) /* Broadcast Packet */
+#define FIFO_CFG4_DR BIT(10) /* Dribble */
+#define FIFO_CFG4_LE BIT(11) /* Long Event */
+#define FIFO_CFG4_CF BIT(12) /* Control Frame */
+#define FIFO_CFG4_PF BIT(13) /* Pause Frame */
+#define FIFO_CFG4_UO BIT(14) /* Unsupported Opcode */
+#define FIFO_CFG4_VT BIT(15) /* VLAN tag detected */
+#define FIFO_CFG4_FT BIT(16) /* Frame Truncated */
+#define FIFO_CFG4_UC BIT(17) /* Unicast Packet */
+
+#define FIFO_CFG5_DE BIT(0) /* Drop Event */
+#define FIFO_CFG5_DV BIT(1) /* RX_DV Event */
+#define FIFO_CFG5_FC BIT(2) /* False Carrier */
+#define FIFO_CFG5_CE BIT(3) /* Code Error */
+#define FIFO_CFG5_LM BIT(4) /* Length Mismatch */
+#define FIFO_CFG5_LO BIT(5) /* Length Out of Range */
+#define FIFO_CFG5_OK BIT(6) /* Packet is OK */
+#define FIFO_CFG5_MC BIT(7) /* Multicast Packet */
+#define FIFO_CFG5_BC BIT(8) /* Broadcast Packet */
+#define FIFO_CFG5_DR BIT(9) /* Dribble */
+#define FIFO_CFG5_CF BIT(10) /* Control Frame */
+#define FIFO_CFG5_PF BIT(11) /* Pause Frame */
+#define FIFO_CFG5_UO BIT(12) /* Unsupported Opcode */
+#define FIFO_CFG5_VT BIT(13) /* VLAN tag detected */
+#define FIFO_CFG5_LE BIT(14) /* Long Event */
+#define FIFO_CFG5_FT BIT(15) /* Frame Truncated */
+#define FIFO_CFG5_16 BIT(16) /* unknown */
+#define FIFO_CFG5_17 BIT(17) /* unknown */
+#define FIFO_CFG5_SF BIT(18) /* Short Frame */
+#define FIFO_CFG5_BM BIT(19) /* Byte Mode */
+
+#define AG71XX_INT_TX_PS BIT(0)
+#define AG71XX_INT_TX_UR BIT(1)
+#define AG71XX_INT_TX_BE BIT(3)
+#define AG71XX_INT_RX_PR BIT(4)
+#define AG71XX_INT_RX_OF BIT(6)
+#define AG71XX_INT_RX_BE BIT(7)
+
+#define MAC_IFCTL_SPEED BIT(16)
+
+#define MII_CFG_CLK_DIV_4 0
+#define MII_CFG_CLK_DIV_6 2
+#define MII_CFG_CLK_DIV_8 3
+#define MII_CFG_CLK_DIV_10 4
+#define MII_CFG_CLK_DIV_14 5
+#define MII_CFG_CLK_DIV_20 6
+#define MII_CFG_CLK_DIV_28 7
+#define MII_CFG_CLK_DIV_34 8
+#define MII_CFG_CLK_DIV_42 9
+#define MII_CFG_CLK_DIV_50 10
+#define MII_CFG_CLK_DIV_58 11
+#define MII_CFG_CLK_DIV_66 12
+#define MII_CFG_CLK_DIV_74 13
+#define MII_CFG_CLK_DIV_82 14
+#define MII_CFG_CLK_DIV_98 15
+#define MII_CFG_RESET BIT(31)
+
+#define MII_CMD_WRITE 0x0
+#define MII_CMD_READ 0x1
+#define MII_ADDR_SHIFT 8
+#define MII_IND_BUSY BIT(0)
+#define MII_IND_INVALID BIT(2)
+
+#define TX_CTRL_TXE BIT(0) /* Tx Enable */
+
+#define TX_STATUS_PS BIT(0) /* Packet Sent */
+#define TX_STATUS_UR BIT(1) /* Tx Underrun */
+#define TX_STATUS_BE BIT(3) /* Bus Error */
+
+#define RX_CTRL_RXE BIT(0) /* Rx Enable */
+
+#define RX_STATUS_PR BIT(0) /* Packet Received */
+#define RX_STATUS_OF BIT(2) /* Rx Overflow */
+#define RX_STATUS_BE BIT(3) /* Bus Error */
+
+static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
+{
+ __raw_writel(value, ag->mac_base + reg);
+ /* flush write */
+ (void) __raw_readl(ag->mac_base + reg);
+}
+
+static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
+{
+ return __raw_readl(ag->mac_base + reg);
+}
+
+static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
+{
+ void __iomem *r;
+
+ r = ag->mac_base + reg;
+ __raw_writel(__raw_readl(r) | mask, r);
+ /* flush write */
+ (void) __raw_readl(r);
+}
+
+static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
+{
+ void __iomem *r;
+
+ r = ag->mac_base + reg;
+ __raw_writel(__raw_readl(r) & ~mask, r);
+ /* flush write */
+ (void) __raw_readl(r);
+}
+
+static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints)
+{
+ ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints);
+}
+
+static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints)
+{
+ ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints);
+}
+
+#ifdef CONFIG_AG71XX_DEBUG_FS
+int ag71xx_debugfs_root_init(void);
+void ag71xx_debugfs_root_exit(void);
+int ag71xx_debugfs_init(struct ag71xx *ag);
+void ag71xx_debugfs_exit(struct ag71xx *ag);
+void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status);
+void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx);
+#else
+static inline int ag71xx_debugfs_root_init(void) { return 0; }
+static inline void ag71xx_debugfs_root_exit(void) {}
+static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; }
+static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {}
+static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag,
+ u32 status) {}
+static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag,
+ int rx, int tx) {}
+#endif /* CONFIG_AG71XX_DEBUG_FS */
+
+int ag71xx_ar7240_init(struct ag71xx *ag, struct device_node *np);
+void ag71xx_ar7240_cleanup(struct ag71xx *ag);
+
+int ag71xx_setup_gmac(struct device_node *np);
+
+int ar7240sw_phy_read(struct mii_bus *mii, int addr, int reg);
+int ar7240sw_phy_write(struct mii_bus *mii, int addr, int reg, u16 val);
+
+#endif /* _AG71XX_H */
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Based on Atheros' AG7100 driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/debugfs.h>
+
+#include "ag71xx.h"
+
+static struct dentry *ag71xx_debugfs_root;
+
+static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status)
+{
+ if (status)
+ ag->debug.int_stats.total++;
+ if (status & AG71XX_INT_TX_PS)
+ ag->debug.int_stats.tx_ps++;
+ if (status & AG71XX_INT_TX_UR)
+ ag->debug.int_stats.tx_ur++;
+ if (status & AG71XX_INT_TX_BE)
+ ag->debug.int_stats.tx_be++;
+ if (status & AG71XX_INT_RX_PR)
+ ag->debug.int_stats.rx_pr++;
+ if (status & AG71XX_INT_RX_OF)
+ ag->debug.int_stats.rx_of++;
+ if (status & AG71XX_INT_RX_BE)
+ ag->debug.int_stats.rx_be++;
+}
+
+static ssize_t read_file_int_stats(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+#define PR_INT_STAT(_label, _field) \
+ len += snprintf(buf + len, sizeof(buf) - len, \
+ "%20s: %10lu\n", _label, ag->debug.int_stats._field);
+
+ struct ag71xx *ag = file->private_data;
+ char buf[256];
+ unsigned int len = 0;
+
+ PR_INT_STAT("TX Packet Sent", tx_ps);
+ PR_INT_STAT("TX Underrun", tx_ur);
+ PR_INT_STAT("TX Bus Error", tx_be);
+ PR_INT_STAT("RX Packet Received", rx_pr);
+ PR_INT_STAT("RX Overflow", rx_of);
+ PR_INT_STAT("RX Bus Error", rx_be);
+ len += snprintf(buf + len, sizeof(buf) - len, "\n");
+ PR_INT_STAT("Total", total);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+#undef PR_INT_STAT
+}
+
+static const struct file_operations ag71xx_fops_int_stats = {
+ .open = ag71xx_debugfs_generic_open,
+ .read = read_file_int_stats,
+ .owner = THIS_MODULE
+};
+
+void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx)
+{
+ struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
+
+ if (rx) {
+ stats->rx_count++;
+ stats->rx_packets += rx;
+ if (rx <= AG71XX_NAPI_WEIGHT)
+ stats->rx[rx]++;
+ if (rx > stats->rx_packets_max)
+ stats->rx_packets_max = rx;
+ }
+
+ if (tx) {
+ stats->tx_count++;
+ stats->tx_packets += tx;
+ if (tx <= AG71XX_NAPI_WEIGHT)
+ stats->tx[tx]++;
+ if (tx > stats->tx_packets_max)
+ stats->tx_packets_max = tx;
+ }
+}
+
+static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ag71xx *ag = file->private_data;
+ struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
+ char *buf;
+ unsigned int buflen;
+ unsigned int len = 0;
+ unsigned long rx_avg = 0;
+ unsigned long tx_avg = 0;
+ int ret;
+ int i;
+
+ buflen = 2048;
+ buf = kmalloc(buflen, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ if (stats->rx_count)
+ rx_avg = stats->rx_packets / stats->rx_count;
+
+ if (stats->tx_count)
+ tx_avg = stats->tx_packets / stats->tx_count;
+
+ len += snprintf(buf + len, buflen - len, "%3s %10s %10s\n",
+ "len", "rx", "tx");
+
+ for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++)
+ len += snprintf(buf + len, buflen - len,
+ "%3d: %10lu %10lu\n",
+ i, stats->rx[i], stats->tx[i]);
+
+ len += snprintf(buf + len, buflen - len, "\n");
+
+ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+ "sum", stats->rx_count, stats->tx_count);
+ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+ "avg", rx_avg, tx_avg);
+ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+ "max", stats->rx_packets_max, stats->tx_packets_max);
+ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+ "pkt", stats->rx_packets, stats->tx_packets);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+ kfree(buf);
+
+ return ret;
+}
+
+static const struct file_operations ag71xx_fops_napi_stats = {
+ .open = ag71xx_debugfs_generic_open,
+ .read = read_file_napi_stats,
+ .owner = THIS_MODULE
+};
+
+#define DESC_PRINT_LEN 64
+
+static ssize_t read_file_ring(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos,
+ struct ag71xx *ag,
+ struct ag71xx_ring *ring,
+ unsigned desc_reg)
+{
+ int ring_size = BIT(ring->order);
+ int ring_mask = ring_size - 1;
+ char *buf;
+ unsigned int buflen;
+ unsigned int len = 0;
+ unsigned long flags;
+ ssize_t ret;
+ int curr;
+ int dirty;
+ u32 desc_hw;
+ int i;
+
+ buflen = (ring_size * DESC_PRINT_LEN);
+ buf = kmalloc(buflen, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ len += snprintf(buf + len, buflen - len,
+ "Idx ... %-8s %-8s %-8s %-8s .\n",
+ "desc", "next", "data", "ctrl");
+
+ spin_lock_irqsave(&ag->lock, flags);
+
+ curr = (ring->curr & ring_mask);
+ dirty = (ring->dirty & ring_mask);
+ desc_hw = ag71xx_rr(ag, desc_reg);
+ for (i = 0; i < ring_size; i++) {
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+ u32 desc_dma = ((u32) ring->descs_dma) + i * AG71XX_DESC_SIZE;
+
+ len += snprintf(buf + len, buflen - len,
+ "%3d %c%c%c %08x %08x %08x %08x %c\n",
+ i,
+ (i == curr) ? 'C' : ' ',
+ (i == dirty) ? 'D' : ' ',
+ (desc_hw == desc_dma) ? 'H' : ' ',
+ desc_dma,
+ desc->next,
+ desc->data,
+ desc->ctrl,
+ (desc->ctrl & DESC_EMPTY) ? 'E' : '*');
+ }
+
+ spin_unlock_irqrestore(&ag->lock, flags);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+ kfree(buf);
+
+ return ret;
+}
+
+static ssize_t read_file_tx_ring(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ag71xx *ag = file->private_data;
+
+ return read_file_ring(file, user_buf, count, ppos, ag, &ag->tx_ring,
+ AG71XX_REG_TX_DESC);
+}
+
+static const struct file_operations ag71xx_fops_tx_ring = {
+ .open = ag71xx_debugfs_generic_open,
+ .read = read_file_tx_ring,
+ .owner = THIS_MODULE
+};
+
+static ssize_t read_file_rx_ring(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ag71xx *ag = file->private_data;
+
+ return read_file_ring(file, user_buf, count, ppos, ag, &ag->rx_ring,
+ AG71XX_REG_RX_DESC);
+}
+
+static const struct file_operations ag71xx_fops_rx_ring = {
+ .open = ag71xx_debugfs_generic_open,
+ .read = read_file_rx_ring,
+ .owner = THIS_MODULE
+};
+
+void ag71xx_debugfs_exit(struct ag71xx *ag)
+{
+ debugfs_remove_recursive(ag->debug.debugfs_dir);
+}
+
+int ag71xx_debugfs_init(struct ag71xx *ag)
+{
+ struct device *dev = &ag->pdev->dev;
+
+ ag->debug.debugfs_dir = debugfs_create_dir(dev_name(dev),
+ ag71xx_debugfs_root);
+ if (!ag->debug.debugfs_dir) {
+ dev_err(dev, "unable to create debugfs directory\n");
+ return -ENOENT;
+ }
+
+ debugfs_create_file("int_stats", S_IRUGO, ag->debug.debugfs_dir,
+ ag, &ag71xx_fops_int_stats);
+ debugfs_create_file("napi_stats", S_IRUGO, ag->debug.debugfs_dir,
+ ag, &ag71xx_fops_napi_stats);
+ debugfs_create_file("tx_ring", S_IRUGO, ag->debug.debugfs_dir,
+ ag, &ag71xx_fops_tx_ring);
+ debugfs_create_file("rx_ring", S_IRUGO, ag->debug.debugfs_dir,
+ ag, &ag71xx_fops_rx_ring);
+
+ return 0;
+}
+
+int ag71xx_debugfs_root_init(void)
+{
+ if (ag71xx_debugfs_root)
+ return -EBUSY;
+
+ ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
+ if (!ag71xx_debugfs_root)
+ return -ENOENT;
+
+ return 0;
+}
+
+void ag71xx_debugfs_root_exit(void)
+{
+ debugfs_remove(ag71xx_debugfs_root);
+ ag71xx_debugfs_root = NULL;
+}
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Based on Atheros' AG7100 driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ag71xx.h"
+
+static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+
+ return ag->msg_enable;
+}
+
+static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+
+ ag->msg_enable = msg_level;
+}
+
+static void ag71xx_ethtool_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *er)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+
+ er->tx_max_pending = AG71XX_TX_RING_SIZE_MAX;
+ er->rx_max_pending = AG71XX_RX_RING_SIZE_MAX;
+ er->rx_mini_max_pending = 0;
+ er->rx_jumbo_max_pending = 0;
+
+ er->tx_pending = BIT(ag->tx_ring.order);
+ er->rx_pending = BIT(ag->rx_ring.order);
+ er->rx_mini_pending = 0;
+ er->rx_jumbo_pending = 0;
+
+ if (ag->tx_ring.desc_split)
+ er->tx_pending /= AG71XX_TX_RING_DS_PER_PKT;
+}
+
+static int ag71xx_ethtool_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *er)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+ unsigned tx_size;
+ unsigned rx_size;
+ int err = 0;
+
+ if (er->rx_mini_pending != 0||
+ er->rx_jumbo_pending != 0 ||
+ er->rx_pending == 0 ||
+ er->tx_pending == 0)
+ return -EINVAL;
+
+ tx_size = er->tx_pending < AG71XX_TX_RING_SIZE_MAX ?
+ er->tx_pending : AG71XX_TX_RING_SIZE_MAX;
+
+ rx_size = er->rx_pending < AG71XX_RX_RING_SIZE_MAX ?
+ er->rx_pending : AG71XX_RX_RING_SIZE_MAX;
+
+ if (netif_running(dev)) {
+ err = dev->netdev_ops->ndo_stop(dev);
+ if (err)
+ return err;
+ }
+
+ if (ag->tx_ring.desc_split)
+ tx_size *= AG71XX_TX_RING_DS_PER_PKT;
+
+ ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
+ ag->rx_ring.order = ag71xx_ring_size_order(rx_size);
+
+ if (netif_running(dev))
+ err = dev->netdev_ops->ndo_open(dev);
+
+ return err;
+}
+
+static int ag71xx_ethtool_nway_reset(struct net_device *dev)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+ struct phy_device *phydev = ag->phy_dev;
+
+ if (!phydev)
+ return -ENODEV;
+
+ return genphy_restart_aneg(phydev);
+}
+
+struct ethtool_ops ag71xx_ethtool_ops = {
+ .get_msglevel = ag71xx_ethtool_get_msglevel,
+ .set_msglevel = ag71xx_ethtool_set_msglevel,
+ .get_ringparam = ag71xx_ethtool_get_ringparam,
+ .set_ringparam = ag71xx_ethtool_set_ringparam,
+ .get_link_ksettings = phy_ethtool_get_link_ksettings,
+ .set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_link = ethtool_op_get_link,
+ .get_ts_info = ethtool_op_get_ts_info,
+ .nway_reset = ag71xx_ethtool_nway_reset,
+};
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/sizes.h>
+#include <linux/of_address.h>
+#include "ag71xx.h"
+
+static void ag71xx_of_set(struct device_node *np, const char *prop,
+ u32 *reg, u32 shift, u32 mask)
+{
+ u32 val;
+
+ if (of_property_read_u32(np, prop, &val))
+ return;
+
+ *reg &= ~(mask << shift);
+ *reg |= ((val & mask) << shift);
+}
+
+static void ag71xx_of_bit(struct device_node *np, const char *prop,
+ u32 *reg, u32 mask)
+{
+ u32 val;
+
+ if (of_property_read_u32(np, prop, &val))
+ return;
+
+ if (val)
+ *reg |= mask;
+ else
+ *reg &= ~mask;
+}
+
+static void ag71xx_setup_gmac_933x(struct device_node *np, void __iomem *base)
+{
+ u32 val = __raw_readl(base + AR933X_GMAC_REG_ETH_CFG);
+
+ ag71xx_of_bit(np, "switch-phy-swap", &val, AR933X_ETH_CFG_SW_PHY_SWAP);
+ ag71xx_of_bit(np, "switch-phy-addr-swap", &val,
+ AR933X_ETH_CFG_SW_PHY_ADDR_SWAP);
+
+ __raw_writel(val, base + AR933X_GMAC_REG_ETH_CFG);
+}
+
+static void ag71xx_setup_gmac_934x(struct device_node *np, void __iomem *base)
+{
+ u32 val = __raw_readl(base + AR934X_GMAC_REG_ETH_CFG);
+
+ ag71xx_of_bit(np, "rgmii-gmac0", &val, AR934X_ETH_CFG_RGMII_GMAC0);
+ ag71xx_of_bit(np, "mii-gmac0", &val, AR934X_ETH_CFG_MII_GMAC0);
+ ag71xx_of_bit(np, "mii-gmac0-slave", &val, AR934X_ETH_CFG_MII_GMAC0_SLAVE);
+ ag71xx_of_bit(np, "gmii-gmac0", &val, AR934X_ETH_CFG_GMII_GMAC0);
+ ag71xx_of_bit(np, "switch-phy-swap", &val, AR934X_ETH_CFG_SW_PHY_SWAP);
+ ag71xx_of_bit(np, "switch-only-mode", &val,
+ AR934X_ETH_CFG_SW_ONLY_MODE);
+ ag71xx_of_set(np, "rxdv-delay", &val,
+ AR934X_ETH_CFG_RDV_DELAY_SHIFT, 0x3);
+ ag71xx_of_set(np, "rxd-delay", &val,
+ AR934X_ETH_CFG_RXD_DELAY_SHIFT, 0x3);
+ ag71xx_of_set(np, "txd-delay", &val,
+ AR934X_ETH_CFG_TXD_DELAY_SHIFT, 0x3);
+ ag71xx_of_set(np, "txen-delay", &val,
+ AR934X_ETH_CFG_TXE_DELAY_SHIFT, 0x3);
+
+ __raw_writel(val, base + AR934X_GMAC_REG_ETH_CFG);
+}
+
+static void ag71xx_setup_gmac_955x(struct device_node *np, void __iomem *base)
+{
+ u32 val = __raw_readl(base + QCA955X_GMAC_REG_ETH_CFG);
+
+ ag71xx_of_bit(np, "rgmii-enabled", &val, QCA955X_ETH_CFG_RGMII_EN);
+ ag71xx_of_bit(np, "ge0-sgmii", &val, QCA955X_ETH_CFG_GE0_SGMII);
+ ag71xx_of_set(np, "txen-delay", &val, QCA955X_ETH_CFG_TXE_DELAY_SHIFT, 0x3);
+ ag71xx_of_set(np, "txd-delay", &val, QCA955X_ETH_CFG_TXD_DELAY_SHIFT, 0x3);
+ ag71xx_of_set(np, "rxdv-delay", &val, QCA955X_ETH_CFG_RDV_DELAY_SHIFT, 0x3);
+ ag71xx_of_set(np, "rxd-delay", &val, QCA955X_ETH_CFG_RXD_DELAY_SHIFT, 0x3);
+
+ __raw_writel(val, base + QCA955X_GMAC_REG_ETH_CFG);
+}
+
+static void ag71xx_setup_gmac_956x(struct device_node *np, void __iomem *base)
+{
+ u32 val = __raw_readl(base + QCA956X_GMAC_REG_ETH_CFG);
+
+ ag71xx_of_bit(np, "switch-phy-swap", &val, QCA956X_ETH_CFG_SW_PHY_SWAP);
+ ag71xx_of_bit(np, "switch-phy-addr-swap", &val,
+ QCA956X_ETH_CFG_SW_PHY_ADDR_SWAP);
+
+ __raw_writel(val, base + QCA956X_GMAC_REG_ETH_CFG);
+}
+
+int ag71xx_setup_gmac(struct device_node *np)
+{
+ struct device_node *np_dev;
+ void __iomem *base;
+ int err = 0;
+
+ np = of_get_child_by_name(np, "gmac-config");
+ if (!np)
+ return 0;
+
+ np_dev = of_parse_phandle(np, "device", 0);
+ if (!np_dev)
+ goto out;
+
+ base = of_iomap(np_dev, 0);
+ if (!base) {
+ pr_err("%pOF: can't map GMAC registers\n", np_dev);
+ err = -ENOMEM;
+ goto err_iomap;
+ }
+
+ if (of_device_is_compatible(np_dev, "qca,ar9330-gmac"))
+ ag71xx_setup_gmac_933x(np, base);
+ else if (of_device_is_compatible(np_dev, "qca,ar9340-gmac"))
+ ag71xx_setup_gmac_934x(np, base);
+ else if (of_device_is_compatible(np_dev, "qca,qca9550-gmac"))
+ ag71xx_setup_gmac_955x(np, base);
+ else if (of_device_is_compatible(np_dev, "qca,qca9560-gmac"))
+ ag71xx_setup_gmac_956x(np, base);
+
+ iounmap(base);
+
+err_iomap:
+ of_node_put(np_dev);
+out:
+ of_node_put(np);
+ return err;
+}
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Based on Atheros' AG7100 driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/sizes.h>
+#include <linux/of_net.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include "ag71xx.h"
+
+#define AG71XX_DEFAULT_MSG_ENABLE \
+ (NETIF_MSG_DRV \
+ | NETIF_MSG_PROBE \
+ | NETIF_MSG_LINK \
+ | NETIF_MSG_TIMER \
+ | NETIF_MSG_IFDOWN \
+ | NETIF_MSG_IFUP \
+ | NETIF_MSG_RX_ERR \
+ | NETIF_MSG_TX_ERR)
+
+static int ag71xx_msg_level = -1;
+
+module_param_named(msg_level, ag71xx_msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
+
+#define ETH_SWITCH_HEADER_LEN 2
+
+static int ag71xx_tx_packets(struct ag71xx *ag, bool flush);
+
+static inline unsigned int ag71xx_max_frame_len(unsigned int mtu)
+{
+ return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;
+}
+
+static void ag71xx_dump_dma_regs(struct ag71xx *ag)
+{
+ DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n",
+ ag->dev->name,
+ ag71xx_rr(ag, AG71XX_REG_TX_CTRL),
+ ag71xx_rr(ag, AG71XX_REG_TX_DESC),
+ ag71xx_rr(ag, AG71XX_REG_TX_STATUS));
+
+ DBG("%s: dma_rx_ctrl=%08x, dma_rx_desc=%08x, dma_rx_status=%08x\n",
+ ag->dev->name,
+ ag71xx_rr(ag, AG71XX_REG_RX_CTRL),
+ ag71xx_rr(ag, AG71XX_REG_RX_DESC),
+ ag71xx_rr(ag, AG71XX_REG_RX_STATUS));
+}
+
+static void ag71xx_dump_regs(struct ag71xx *ag)
+{
+ DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n",
+ ag->dev->name,
+ ag71xx_rr(ag, AG71XX_REG_MAC_CFG1),
+ ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
+ ag71xx_rr(ag, AG71XX_REG_MAC_IPG),
+ ag71xx_rr(ag, AG71XX_REG_MAC_HDX),
+ ag71xx_rr(ag, AG71XX_REG_MAC_MFL));
+ DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n",
+ ag->dev->name,
+ ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
+ ag71xx_rr(ag, AG71XX_REG_MAC_ADDR1),
+ ag71xx_rr(ag, AG71XX_REG_MAC_ADDR2));
+ DBG("%s: fifo_cfg0=%08x, fifo_cfg1=%08x, fifo_cfg2=%08x\n",
+ ag->dev->name,
+ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
+ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
+ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
+ DBG("%s: fifo_cfg3=%08x, fifo_cfg4=%08x, fifo_cfg5=%08x\n",
+ ag->dev->name,
+ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
+ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
+ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
+}
+
+static inline void ag71xx_dump_intr(struct ag71xx *ag, char *label, u32 intr)
+{
+ DBG("%s: %s intr=%08x %s%s%s%s%s%s\n",
+ ag->dev->name, label, intr,
+ (intr & AG71XX_INT_TX_PS) ? "TXPS " : "",
+ (intr & AG71XX_INT_TX_UR) ? "TXUR " : "",
+ (intr & AG71XX_INT_TX_BE) ? "TXBE " : "",
+ (intr & AG71XX_INT_RX_PR) ? "RXPR " : "",
+ (intr & AG71XX_INT_RX_OF) ? "RXOF " : "",
+ (intr & AG71XX_INT_RX_BE) ? "RXBE " : "");
+}
+
+static void ag71xx_ring_tx_clean(struct ag71xx *ag)
+{
+ struct ag71xx_ring *ring = &ag->tx_ring;
+ struct net_device *dev = ag->dev;
+ int ring_mask = BIT(ring->order) - 1;
+ u32 bytes_compl = 0, pkts_compl = 0;
+
+ while (ring->curr != ring->dirty) {
+ struct ag71xx_desc *desc;
+ u32 i = ring->dirty & ring_mask;
+
+ desc = ag71xx_ring_desc(ring, i);
+ if (!ag71xx_desc_empty(desc)) {
+ desc->ctrl = 0;
+ dev->stats.tx_errors++;
+ }
+
+ if (ring->buf[i].skb) {
+ bytes_compl += ring->buf[i].len;
+ pkts_compl++;
+ dev_kfree_skb_any(ring->buf[i].skb);
+ }
+ ring->buf[i].skb = NULL;
+ ring->dirty++;
+ }
+
+ /* flush descriptors */
+ wmb();
+
+ netdev_completed_queue(dev, pkts_compl, bytes_compl);
+}
+
+static void ag71xx_ring_tx_init(struct ag71xx *ag)
+{
+ struct ag71xx_ring *ring = &ag->tx_ring;
+ int ring_size = BIT(ring->order);
+ int ring_mask = BIT(ring->order) - 1;
+ int i;
+
+ for (i = 0; i < ring_size; i++) {
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+
+ desc->next = (u32) (ring->descs_dma +
+ AG71XX_DESC_SIZE * ((i + 1) & ring_mask));
+
+ desc->ctrl = DESC_EMPTY;
+ ring->buf[i].skb = NULL;
+ }
+
+ /* flush descriptors */
+ wmb();
+
+ ring->curr = 0;
+ ring->dirty = 0;
+ netdev_reset_queue(ag->dev);
+}
+
+static void ag71xx_ring_rx_clean(struct ag71xx *ag)
+{
+ struct ag71xx_ring *ring = &ag->rx_ring;
+ int ring_size = BIT(ring->order);
+ int i;
+
+ if (!ring->buf)
+ return;
+
+ for (i = 0; i < ring_size; i++)
+ if (ring->buf[i].rx_buf) {
+ dma_unmap_single(&ag->pdev->dev, ring->buf[i].dma_addr,
+ ag->rx_buf_size, DMA_FROM_DEVICE);
+ skb_free_frag(ring->buf[i].rx_buf);
+ }
+}
+
+static int ag71xx_buffer_size(struct ag71xx *ag)
+{
+ return ag->rx_buf_size +
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+}
+
+static bool ag71xx_fill_rx_buf(struct ag71xx *ag, struct ag71xx_buf *buf,
+ int offset,
+ void *(*alloc)(unsigned int size))
+{
+ struct ag71xx_ring *ring = &ag->rx_ring;
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, buf - &ring->buf[0]);
+ void *data;
+
+ data = alloc(ag71xx_buffer_size(ag));
+ if (!data)
+ return false;
+
+ buf->rx_buf = data;
+ buf->dma_addr = dma_map_single(&ag->pdev->dev, data, ag->rx_buf_size,
+ DMA_FROM_DEVICE);
+ desc->data = (u32) buf->dma_addr + offset;
+ return true;
+}
+
+static int ag71xx_ring_rx_init(struct ag71xx *ag)
+{
+ struct ag71xx_ring *ring = &ag->rx_ring;
+ int ring_size = BIT(ring->order);
+ int ring_mask = BIT(ring->order) - 1;
+ unsigned int i;
+ int ret;
+
+ ret = 0;
+ for (i = 0; i < ring_size; i++) {
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+
+ desc->next = (u32) (ring->descs_dma +
+ AG71XX_DESC_SIZE * ((i + 1) & ring_mask));
+
+ DBG("ag71xx: RX desc at %p, next is %08x\n",
+ desc, desc->next);
+ }
+
+ for (i = 0; i < ring_size; i++) {
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+
+ if (!ag71xx_fill_rx_buf(ag, &ring->buf[i], ag->rx_buf_offset,
+ netdev_alloc_frag)) {
+ ret = -ENOMEM;
+ break;
+ }
+
+ desc->ctrl = DESC_EMPTY;
+ }
+
+ /* flush descriptors */
+ wmb();
+
+ ring->curr = 0;
+ ring->dirty = 0;
+
+ return ret;
+}
+
+static int ag71xx_ring_rx_refill(struct ag71xx *ag)
+{
+ struct ag71xx_ring *ring = &ag->rx_ring;
+ int ring_mask = BIT(ring->order) - 1;
+ unsigned int count;
+ int offset = ag->rx_buf_offset;
+
+ count = 0;
+ for (; ring->curr - ring->dirty > 0; ring->dirty++) {
+ struct ag71xx_desc *desc;
+ unsigned int i;
+
+ i = ring->dirty & ring_mask;
+ desc = ag71xx_ring_desc(ring, i);
+
+ if (!ring->buf[i].rx_buf &&
+ !ag71xx_fill_rx_buf(ag, &ring->buf[i], offset,
+ napi_alloc_frag))
+ break;
+
+ desc->ctrl = DESC_EMPTY;
+ count++;
+ }
+
+ /* flush descriptors */
+ wmb();
+
+ DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count);
+
+ return count;
+}
+
+static int ag71xx_rings_init(struct ag71xx *ag)
+{
+ struct ag71xx_ring *tx = &ag->tx_ring;
+ struct ag71xx_ring *rx = &ag->rx_ring;
+ int ring_size = BIT(tx->order) + BIT(rx->order);
+ int tx_size = BIT(tx->order);
+
+ tx->buf = kzalloc(ring_size * sizeof(*tx->buf), GFP_KERNEL);
+ if (!tx->buf)
+ return -ENOMEM;
+
+ tx->descs_cpu = dma_alloc_coherent(&ag->pdev->dev, ring_size * AG71XX_DESC_SIZE,
+ &tx->descs_dma, GFP_KERNEL);
+ if (!tx->descs_cpu) {
+ kfree(tx->buf);
+ tx->buf = NULL;
+ return -ENOMEM;
+ }
+
+ rx->buf = &tx->buf[tx_size];
+ rx->descs_cpu = ((void *)tx->descs_cpu) + tx_size * AG71XX_DESC_SIZE;
+ rx->descs_dma = tx->descs_dma + tx_size * AG71XX_DESC_SIZE;
+
+ ag71xx_ring_tx_init(ag);
+ return ag71xx_ring_rx_init(ag);
+}
+
+static void ag71xx_rings_free(struct ag71xx *ag)
+{
+ struct ag71xx_ring *tx = &ag->tx_ring;
+ struct ag71xx_ring *rx = &ag->rx_ring;
+ int ring_size = BIT(tx->order) + BIT(rx->order);
+
+ if (tx->descs_cpu)
+ dma_free_coherent(&ag->pdev->dev, ring_size * AG71XX_DESC_SIZE,
+ tx->descs_cpu, tx->descs_dma);
+
+ kfree(tx->buf);
+
+ tx->descs_cpu = NULL;
+ rx->descs_cpu = NULL;
+ tx->buf = NULL;
+ rx->buf = NULL;
+}
+
+static void ag71xx_rings_cleanup(struct ag71xx *ag)
+{
+ ag71xx_ring_rx_clean(ag);
+ ag71xx_ring_tx_clean(ag);
+ ag71xx_rings_free(ag);
+
+ netdev_reset_queue(ag->dev);
+}
+
+static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
+{
+ switch (ag->speed) {
+ case SPEED_1000:
+ return "1000";
+ case SPEED_100:
+ return "100";
+ case SPEED_10:
+ return "10";
+ }
+
+ return "?";
+}
+
+static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
+{
+ u32 t;
+
+ t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16)
+ | (((u32) mac[3]) << 8) | ((u32) mac[2]);
+
+ ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t);
+
+ t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16);
+ ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
+}
+
+static void ag71xx_dma_reset(struct ag71xx *ag)
+{
+ u32 val;
+ int i;
+
+ ag71xx_dump_dma_regs(ag);
+
+ /* stop RX and TX */
+ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
+ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
+
+ /*
+ * give the hardware some time to really stop all rx/tx activity
+ * clearing the descriptors too early causes random memory corruption
+ */
+ mdelay(1);
+
+ /* clear descriptor addresses */
+ ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->stop_desc_dma);
+ ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->stop_desc_dma);
+
+ /* clear pending RX/TX interrupts */
+ for (i = 0; i < 256; i++) {
+ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
+ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
+ }
+
+ /* clear pending errors */
+ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
+ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
+
+ val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
+ if (val)
+ pr_alert("%s: unable to clear DMA Rx status: %08x\n",
+ ag->dev->name, val);
+
+ val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
+
+ /* mask out reserved bits */
+ val &= ~0xff000000;
+
+ if (val)
+ pr_alert("%s: unable to clear DMA Tx status: %08x\n",
+ ag->dev->name, val);
+
+ ag71xx_dump_dma_regs(ag);
+}
+
+#define MAC_CFG1_INIT (MAC_CFG1_RXE | MAC_CFG1_TXE | \
+ MAC_CFG1_SRX | MAC_CFG1_STX)
+
+#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
+
+#define FIFO_CFG4_INIT (FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \
+ FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \
+ FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \
+ FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \
+ FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \
+ FIFO_CFG4_VT)
+
+#define FIFO_CFG5_INIT (FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \
+ FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \
+ FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \
+ FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \
+ FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \
+ FIFO_CFG5_17 | FIFO_CFG5_SF)
+
+static void ag71xx_hw_stop(struct ag71xx *ag)
+{
+ /* disable all interrupts and stop the rx/tx engine */
+ ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0);
+ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
+ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
+}
+
+static void ag71xx_hw_setup(struct ag71xx *ag)
+{
+ struct device_node *np = ag->pdev->dev.of_node;
+ u32 init = MAC_CFG1_INIT;
+
+ /* setup MAC configuration registers */
+ if (of_property_read_bool(np, "flow-control"))
+ init |= MAC_CFG1_TFC | MAC_CFG1_RFC;
+ ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, init);
+
+ ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
+ MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
+
+ /* setup max frame length to zero */
+ ag71xx_wr(ag, AG71XX_REG_MAC_MFL, 0);
+
+ /* setup FIFO configuration registers */
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, ag->fifodata[0]);
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, ag->fifodata[1]);
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
+}
+
+static void ag71xx_hw_init(struct ag71xx *ag)
+{
+ ag71xx_hw_stop(ag);
+
+ ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR);
+ udelay(20);
+
+ reset_control_assert(ag->mac_reset);
+ if (ag->mdio_reset)
+ reset_control_assert(ag->mdio_reset);
+ msleep(100);
+ reset_control_deassert(ag->mac_reset);
+ if (ag->mdio_reset)
+ reset_control_deassert(ag->mdio_reset);
+ msleep(200);
+
+ ag71xx_hw_setup(ag);
+
+ ag71xx_dma_reset(ag);
+}
+
+static void ag71xx_fast_reset(struct ag71xx *ag)
+{
+ struct net_device *dev = ag->dev;
+ u32 rx_ds;
+ u32 mii_reg;
+
+ ag71xx_hw_stop(ag);
+ wmb();
+
+ mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG);
+ rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC);
+
+ ag71xx_tx_packets(ag, true);
+
+ reset_control_assert(ag->mac_reset);
+ udelay(10);
+ reset_control_deassert(ag->mac_reset);
+ udelay(10);
+
+ ag71xx_dma_reset(ag);
+ ag71xx_hw_setup(ag);
+ ag->tx_ring.curr = 0;
+ ag->tx_ring.dirty = 0;
+ netdev_reset_queue(ag->dev);
+
+ /* setup max frame length */
+ ag71xx_wr(ag, AG71XX_REG_MAC_MFL,
+ ag71xx_max_frame_len(ag->dev->mtu));
+
+ ag71xx_wr(ag, AG71XX_REG_RX_DESC, rx_ds);
+ ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
+ ag71xx_wr(ag, AG71XX_REG_MII_CFG, mii_reg);
+
+ ag71xx_hw_set_macaddr(ag, dev->dev_addr);
+}
+
+static void ag71xx_hw_start(struct ag71xx *ag)
+{
+ /* start RX engine */
+ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
+
+ /* enable interrupts */
+ ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT);
+
+ netif_wake_queue(ag->dev);
+}
+
+static void ath79_set_pllval(struct ag71xx *ag)
+{
+ u32 pll_reg = ag->pllreg[1];
+ u32 pll_val;
+
+ if (!ag->pllregmap)
+ return;
+
+ switch (ag->speed) {
+ case SPEED_10:
+ pll_val = ag->plldata[2];
+ break;
+ case SPEED_100:
+ pll_val = ag->plldata[1];
+ break;
+ case SPEED_1000:
+ pll_val = ag->plldata[0];
+ break;
+ default:
+ BUG();
+ }
+
+ if (pll_val)
+ regmap_write(ag->pllregmap, pll_reg, pll_val);
+}
+
+static void ath79_set_pll(struct ag71xx *ag)
+{
+ u32 pll_cfg = ag->pllreg[0];
+ u32 pll_shift = ag->pllreg[2];
+
+ if (!ag->pllregmap)
+ return;
+
+ regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 2 << pll_shift);
+ udelay(100);
+
+ ath79_set_pllval(ag);
+
+ regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 3 << pll_shift);
+ udelay(100);
+
+ regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 0);
+ udelay(100);
+}
+
+static void ag71xx_bit_set(void __iomem *reg, u32 bit)
+{
+ u32 val;
+
+ val = __raw_readl(reg) | bit;
+ __raw_writel(val, reg);
+ __raw_readl(reg);
+}
+
+static void ag71xx_bit_clear(void __iomem *reg, u32 bit)
+{
+ u32 val;
+
+ val = __raw_readl(reg) & ~bit;
+ __raw_writel(val, reg);
+ __raw_readl(reg);
+}
+
+static void ag71xx_sgmii_init_qca955x(struct device_node *np)
+{
+ struct device_node *np_dev;
+ void __iomem *gmac_base;
+ u32 mr_an_status;
+ u32 sgmii_status;
+ u8 tries = 0;
+ int err = 0;
+
+ np = of_get_child_by_name(np, "gmac-config");
+ if (!np)
+ return;
+
+ np_dev = of_parse_phandle(np, "device", 0);
+ if (!np_dev)
+ goto out;
+
+ gmac_base = of_iomap(np_dev, 0);
+ if (!gmac_base) {
+ pr_err("%pOF: can't map GMAC registers\n", np_dev);
+ err = -ENOMEM;
+ goto err_iomap;
+ }
+
+ mr_an_status = __raw_readl(gmac_base + QCA955X_GMAC_REG_MR_AN_STATUS);
+ if (!(mr_an_status & QCA955X_MR_AN_STATUS_AN_ABILITY))
+ goto sgmii_out;
+
+ /* SGMII reset sequence */
+ __raw_writel(QCA955X_SGMII_RESET_RX_CLK_N_RESET,
+ gmac_base + QCA955X_GMAC_REG_SGMII_RESET);
+ __raw_readl(gmac_base + QCA955X_GMAC_REG_SGMII_RESET);
+ udelay(10);
+
+ ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
+ QCA955X_SGMII_RESET_HW_RX_125M_N);
+ udelay(10);
+
+ ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
+ QCA955X_SGMII_RESET_RX_125M_N);
+ udelay(10);
+
+ ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
+ QCA955X_SGMII_RESET_TX_125M_N);
+ udelay(10);
+
+ ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
+ QCA955X_SGMII_RESET_RX_CLK_N);
+ udelay(10);
+
+ ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
+ QCA955X_SGMII_RESET_TX_CLK_N);
+ udelay(10);
+
+ /*
+ * The following is what QCA has to say about what happens here:
+ *
+ * Across resets SGMII link status goes to weird state.
+ * If SGMII_DEBUG register reads other than 0x1f or 0x10,
+ * we are for sure in a bad state.
+ *
+ * Issue a PHY reset in MR_AN_CONTROL to keep going.
+ */
+ do {
+ ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_MR_AN_CONTROL,
+ QCA955X_MR_AN_CONTROL_PHY_RESET |
+ QCA955X_MR_AN_CONTROL_AN_ENABLE);
+ udelay(200);
+ ag71xx_bit_clear(gmac_base + QCA955X_GMAC_REG_MR_AN_CONTROL,
+ QCA955X_MR_AN_CONTROL_PHY_RESET);
+ mdelay(300);
+ sgmii_status = __raw_readl(gmac_base + QCA955X_GMAC_REG_SGMII_DEBUG) &
+ QCA955X_SGMII_DEBUG_TX_STATE_MASK;
+
+ if (tries++ >= 20) {
+ pr_err("ag71xx: max retries for SGMII fixup exceeded\n");
+ break;
+ }
+ } while (!(sgmii_status == 0xf || sgmii_status == 0x10));
+
+sgmii_out:
+ iounmap(gmac_base);
+err_iomap:
+ of_node_put(np_dev);
+out:
+ of_node_put(np);
+}
+
+static void ath79_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if)
+{
+ u32 t;
+
+ t = __raw_readl(ag->mii_base);
+ t &= ~(AR71XX_MII_CTRL_IF_MASK);
+ t |= (mii_if & AR71XX_MII_CTRL_IF_MASK);
+ __raw_writel(t, ag->mii_base);
+}
+
+static void ath79_mii0_ctrl_set_if(struct ag71xx *ag)
+{
+ unsigned int mii_if;
+
+ switch (ag->phy_if_mode) {
+ case PHY_INTERFACE_MODE_MII:
+ mii_if = AR71XX_MII0_CTRL_IF_MII;
+ break;
+ case PHY_INTERFACE_MODE_GMII:
+ mii_if = AR71XX_MII0_CTRL_IF_GMII;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ mii_if = AR71XX_MII0_CTRL_IF_RGMII;
+ break;
+ case PHY_INTERFACE_MODE_RMII:
+ mii_if = AR71XX_MII0_CTRL_IF_RMII;
+ break;
+ default:
+ WARN(1, "Impossible PHY mode defined.\n");
+ return;
+ }
+
+ ath79_mii_ctrl_set_if(ag, mii_if);
+}
+
+static void ath79_mii1_ctrl_set_if(struct ag71xx *ag)
+{
+ unsigned int mii_if;
+
+ switch (ag->phy_if_mode) {
+ case PHY_INTERFACE_MODE_RMII:
+ mii_if = AR71XX_MII1_CTRL_IF_RMII;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ mii_if = AR71XX_MII1_CTRL_IF_RGMII;
+ break;
+ default:
+ WARN(1, "Impossible PHY mode defined.\n");
+ return;
+ }
+
+ ath79_mii_ctrl_set_if(ag, mii_if);
+}
+
+static void ath79_mii_ctrl_set_speed(struct ag71xx *ag)
+{
+ unsigned int mii_speed;
+ u32 t;
+
+ if (!ag->mii_base)
+ return;
+
+ switch (ag->speed) {
+ case SPEED_10:
+ mii_speed = AR71XX_MII_CTRL_SPEED_10;
+ break;
+ case SPEED_100:
+ mii_speed = AR71XX_MII_CTRL_SPEED_100;
+ break;
+ case SPEED_1000:
+ mii_speed = AR71XX_MII_CTRL_SPEED_1000;
+ break;
+ default:
+ BUG();
+ }
+
+ t = __raw_readl(ag->mii_base);
+ t &= ~(AR71XX_MII_CTRL_SPEED_MASK << AR71XX_MII_CTRL_SPEED_SHIFT);
+ t |= mii_speed << AR71XX_MII_CTRL_SPEED_SHIFT;
+ __raw_writel(t, ag->mii_base);
+}
+
+static void
+__ag71xx_link_adjust(struct ag71xx *ag, bool update)
+{
+ struct device_node *np = ag->pdev->dev.of_node;
+ u32 cfg2;
+ u32 ifctl;
+ u32 fifo5;
+
+ if (!ag->link && update) {
+ ag71xx_hw_stop(ag);
+ netif_carrier_off(ag->dev);
+ if (netif_msg_link(ag))
+ pr_info("%s: link down\n", ag->dev->name);
+ return;
+ }
+
+ if (!of_device_is_compatible(np, "qca,ar9130-eth") &&
+ !of_device_is_compatible(np, "qca,ar7100-eth"))
+ ag71xx_fast_reset(ag);
+
+ cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
+ cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
+ cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
+
+ ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
+ ifctl &= ~(MAC_IFCTL_SPEED);
+
+ fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
+ fifo5 &= ~FIFO_CFG5_BM;
+
+ switch (ag->speed) {
+ case SPEED_1000:
+ cfg2 |= MAC_CFG2_IF_1000;
+ fifo5 |= FIFO_CFG5_BM;
+ break;
+ case SPEED_100:
+ cfg2 |= MAC_CFG2_IF_10_100;
+ ifctl |= MAC_IFCTL_SPEED;
+ break;
+ case SPEED_10:
+ cfg2 |= MAC_CFG2_IF_10_100;
+ break;
+ default:
+ BUG();
+ return;
+ }
+
+ if (ag->tx_ring.desc_split) {
+ ag->fifodata[2] &= 0xffff;
+ ag->fifodata[2] |= ((2048 - ag->tx_ring.desc_split) / 4) << 16;
+ }
+
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, ag->fifodata[2]);
+
+ if (update) {
+ if (of_device_is_compatible(np, "qca,ar7100-eth") ||
+ of_device_is_compatible(np, "qca,ar9130-eth")) {
+ ath79_set_pll(ag);
+ ath79_mii_ctrl_set_speed(ag);
+ } else if (of_device_is_compatible(np, "qca,ar7242-eth") ||
+ of_device_is_compatible(np, "qca,ar9340-eth") ||
+ of_device_is_compatible(np, "qca,qca9550-eth") ||
+ of_device_is_compatible(np, "qca,qca9560-eth")) {
+ ath79_set_pllval(ag);
+ if (of_property_read_bool(np, "qca955x-sgmii-fixup"))
+ ag71xx_sgmii_init_qca955x(np);
+ }
+ }
+
+ ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
+ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
+ ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
+
+ if (of_device_is_compatible(np, "qca,qca9530-eth") ||
+ of_device_is_compatible(np, "qca,qca9560-eth")) {
+ /*
+ * The rx ring buffer can stall on small packets on QCA953x and
+ * QCA956x. Disabling the inline checksum engine fixes the stall.
+ * The wr, rr functions cannot be used since this hidden register
+ * is outside of the normal ag71xx register block.
+ */
+ void __iomem *dam = ioremap_nocache(0xb90001bc, 0x4);
+ if (dam) {
+ __raw_writel(__raw_readl(dam) & ~BIT(27), dam);
+ (void)__raw_readl(dam);
+ iounmap(dam);
+ }
+ }
+
+ ag71xx_hw_start(ag);
+
+ netif_carrier_on(ag->dev);
+ if (update && netif_msg_link(ag))
+ pr_info("%s: link up (%sMbps/%s duplex)\n",
+ ag->dev->name,
+ ag71xx_speed_str(ag),
+ (DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
+
+ ag71xx_dump_regs(ag);
+}
+
+void ag71xx_link_adjust(struct ag71xx *ag)
+{
+ __ag71xx_link_adjust(ag, true);
+}
+
+static int ag71xx_hw_enable(struct ag71xx *ag)
+{
+ int ret;
+
+ ret = ag71xx_rings_init(ag);
+ if (ret)
+ return ret;
+
+ napi_enable(&ag->napi);
+ ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
+ ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma);
+ netif_start_queue(ag->dev);
+
+ return 0;
+}
+
+static void ag71xx_hw_disable(struct ag71xx *ag)
+{
+ netif_stop_queue(ag->dev);
+
+ ag71xx_hw_stop(ag);
+ ag71xx_dma_reset(ag);
+
+ napi_disable(&ag->napi);
+ del_timer_sync(&ag->oom_timer);
+
+ ag71xx_rings_cleanup(ag);
+}
+
+static int ag71xx_open(struct net_device *dev)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+ unsigned int max_frame_len;
+ int ret;
+
+ netif_carrier_off(dev);
+ max_frame_len = ag71xx_max_frame_len(dev->mtu);
+ ag->rx_buf_size = SKB_DATA_ALIGN(max_frame_len + NET_SKB_PAD + NET_IP_ALIGN);
+
+ /* setup max frame length */
+ ag71xx_wr(ag, AG71XX_REG_MAC_MFL, max_frame_len);
+ ag71xx_hw_set_macaddr(ag, dev->dev_addr);
+
+ ret = ag71xx_hw_enable(ag);
+ if (ret)
+ goto err;
+
+ phy_start(ag->phy_dev);
+
+ return 0;
+
+err:
+ ag71xx_rings_cleanup(ag);
+ return ret;
+}
+
+static int ag71xx_stop(struct net_device *dev)
+{
+ unsigned long flags;
+ struct ag71xx *ag = netdev_priv(dev);
+
+ netif_carrier_off(dev);
+ phy_stop(ag->phy_dev);
+
+ spin_lock_irqsave(&ag->lock, flags);
+ if (ag->link) {
+ ag->link = 0;
+ ag71xx_link_adjust(ag);
+ }
+ spin_unlock_irqrestore(&ag->lock, flags);
+
+ ag71xx_hw_disable(ag);
+
+ return 0;
+}
+
+static int ag71xx_fill_dma_desc(struct ag71xx_ring *ring, u32 addr, int len)
+{
+ int i;
+ struct ag71xx_desc *desc;
+ int ring_mask = BIT(ring->order) - 1;
+ int ndesc = 0;
+ int split = ring->desc_split;
+
+ if (!split)
+ split = len;
+
+ while (len > 0) {
+ unsigned int cur_len = len;
+
+ i = (ring->curr + ndesc) & ring_mask;
+ desc = ag71xx_ring_desc(ring, i);
+
+ if (!ag71xx_desc_empty(desc))
+ return -1;
+
+ if (cur_len > split) {
+ cur_len = split;
+
+ /*
+ * TX will hang if DMA transfers <= 4 bytes,
+ * make sure next segment is more than 4 bytes long.
+ */
+ if (len <= split + 4)
+ cur_len -= 4;
+ }
+
+ desc->data = addr;
+ addr += cur_len;
+ len -= cur_len;
+
+ if (len > 0)
+ cur_len |= DESC_MORE;
+
+ /* prevent early tx attempt of this descriptor */
+ if (!ndesc)
+ cur_len |= DESC_EMPTY;
+
+ desc->ctrl = cur_len;
+ ndesc++;
+ }
+
+ return ndesc;
+}
+
+static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+ struct ag71xx_ring *ring = &ag->tx_ring;
+ int ring_mask = BIT(ring->order) - 1;
+ int ring_size = BIT(ring->order);
+ struct ag71xx_desc *desc;
+ dma_addr_t dma_addr;
+ int i, n, ring_min;
+
+ if (skb->len <= 4) {
+ DBG("%s: packet len is too small\n", ag->dev->name);
+ goto err_drop;
+ }
+
+ dma_addr = dma_map_single(&ag->pdev->dev, skb->data, skb->len,
+ DMA_TO_DEVICE);
+
+ i = ring->curr & ring_mask;
+ desc = ag71xx_ring_desc(ring, i);
+
+ /* setup descriptor fields */
+ n = ag71xx_fill_dma_desc(ring, (u32) dma_addr, skb->len & ag->desc_pktlen_mask);
+ if (n < 0)
+ goto err_drop_unmap;
+
+ i = (ring->curr + n - 1) & ring_mask;
+ ring->buf[i].len = skb->len;
+ ring->buf[i].skb = skb;
+
+ netdev_sent_queue(dev, skb->len);
+
+ skb_tx_timestamp(skb);
+
+ desc->ctrl &= ~DESC_EMPTY;
+ ring->curr += n;
+
+ /* flush descriptor */
+ wmb();
+
+ ring_min = 2;
+ if (ring->desc_split)
+ ring_min *= AG71XX_TX_RING_DS_PER_PKT;
+
+ if (ring->curr - ring->dirty >= ring_size - ring_min) {
+ DBG("%s: tx queue full\n", dev->name);
+ netif_stop_queue(dev);
+ }
+
+ DBG("%s: packet injected into TX queue\n", ag->dev->name);
+
+ /* enable TX engine */
+ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);
+
+ return NETDEV_TX_OK;
+
+err_drop_unmap:
+ dma_unmap_single(&ag->pdev->dev, dma_addr, skb->len, DMA_TO_DEVICE);
+
+err_drop:
+ dev->stats.tx_dropped++;
+
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+}
+
+static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+
+
+ switch (cmd) {
+ case SIOCSIFHWADDR:
+ if (copy_from_user
+ (dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
+ return -EFAULT;
+ return 0;
+
+ case SIOCGIFHWADDR:
+ if (copy_to_user
+ (ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
+ return -EFAULT;
+ return 0;
+
+ case SIOCGMIIPHY:
+ case SIOCGMIIREG:
+ case SIOCSMIIREG:
+ if (ag->phy_dev == NULL)
+ break;
+
+ return phy_mii_ioctl(ag->phy_dev, ifr, cmd);
+
+ default:
+ break;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
+static void ag71xx_oom_timer_handler(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *) data;
+ struct ag71xx *ag = netdev_priv(dev);
+#else
+static void ag71xx_oom_timer_handler(struct timer_list *t)
+{
+ struct ag71xx *ag = from_timer(ag, t, oom_timer);
+#endif
+
+ napi_schedule(&ag->napi);
+}
+
+static void ag71xx_tx_timeout(struct net_device *dev)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+
+ if (netif_msg_tx_err(ag))
+ pr_info("%s: tx timeout\n", ag->dev->name);
+
+ schedule_delayed_work(&ag->restart_work, 1);
+}
+
+static void ag71xx_restart_work_func(struct work_struct *work)
+{
+ struct ag71xx *ag = container_of(work, struct ag71xx, restart_work.work);
+
+ rtnl_lock();
+ ag71xx_hw_disable(ag);
+ ag71xx_hw_enable(ag);
+ if (ag->link)
+ __ag71xx_link_adjust(ag, false);
+ rtnl_unlock();
+}
+
+static bool ag71xx_check_dma_stuck(struct ag71xx *ag)
+{
+ unsigned long timestamp;
+ u32 rx_sm, tx_sm, rx_fd;
+
+ timestamp = netdev_get_tx_queue(ag->dev, 0)->trans_start;
+ if (likely(time_before(jiffies, timestamp + HZ/10)))
+ return false;
+
+ if (!netif_carrier_ok(ag->dev))
+ return false;
+
+ rx_sm = ag71xx_rr(ag, AG71XX_REG_RX_SM);
+ if ((rx_sm & 0x7) == 0x3 && ((rx_sm >> 4) & 0x7) == 0x6)
+ return true;
+
+ tx_sm = ag71xx_rr(ag, AG71XX_REG_TX_SM);
+ rx_fd = ag71xx_rr(ag, AG71XX_REG_FIFO_DEPTH);
+ if (((tx_sm >> 4) & 0x7) == 0 && ((rx_sm & 0x7) == 0) &&
+ ((rx_sm >> 4) & 0x7) == 0 && rx_fd == 0)
+ return true;
+
+ return false;
+}
+
+static int ag71xx_tx_packets(struct ag71xx *ag, bool flush)
+{
+ struct ag71xx_ring *ring = &ag->tx_ring;
+ bool dma_stuck = false;
+ int ring_mask = BIT(ring->order) - 1;
+ int ring_size = BIT(ring->order);
+ int sent = 0;
+ int bytes_compl = 0;
+ int n = 0;
+
+ DBG("%s: processing TX ring\n", ag->dev->name);
+
+ while (ring->dirty + n != ring->curr) {
+ unsigned int i = (ring->dirty + n) & ring_mask;
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+ struct sk_buff *skb = ring->buf[i].skb;
+
+ if (!flush && !ag71xx_desc_empty(desc)) {
+ if (ag->tx_hang_workaround &&
+ ag71xx_check_dma_stuck(ag)) {
+ schedule_delayed_work(&ag->restart_work, HZ / 2);
+ dma_stuck = true;
+ }
+ break;
+ }
+
+ if (flush)
+ desc->ctrl |= DESC_EMPTY;
+
+ n++;
+ if (!skb)
+ continue;
+
+ dev_kfree_skb_any(skb);
+ ring->buf[i].skb = NULL;
+
+ bytes_compl += ring->buf[i].len;
+
+ sent++;
+ ring->dirty += n;
+
+ while (n > 0) {
+ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
+ n--;
+ }
+ }
+
+ DBG("%s: %d packets sent out\n", ag->dev->name, sent);
+
+ if (!sent)
+ return 0;
+
+ ag->dev->stats.tx_bytes += bytes_compl;
+ ag->dev->stats.tx_packets += sent;
+
+ netdev_completed_queue(ag->dev, sent, bytes_compl);
+ if ((ring->curr - ring->dirty) < (ring_size * 3) / 4)
+ netif_wake_queue(ag->dev);
+
+ if (!dma_stuck)
+ cancel_delayed_work(&ag->restart_work);
+
+ return sent;
+}
+
+static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
+{
+ struct net_device *dev = ag->dev;
+ struct ag71xx_ring *ring = &ag->rx_ring;
+ unsigned int pktlen_mask = ag->desc_pktlen_mask;
+ unsigned int offset = ag->rx_buf_offset;
+ int ring_mask = BIT(ring->order) - 1;
+ int ring_size = BIT(ring->order);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ struct list_head rx_list;
+ struct sk_buff *next;
+#else
+ struct sk_buff_head queue;
+#endif
+ struct sk_buff *skb;
+ int done = 0;
+
+ DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
+ dev->name, limit, ring->curr, ring->dirty);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ INIT_LIST_HEAD(&rx_list);
+#else
+ skb_queue_head_init(&queue);
+#endif
+
+ while (done < limit) {
+ unsigned int i = ring->curr & ring_mask;
+ struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+ int pktlen;
+ int err = 0;
+
+ if (ag71xx_desc_empty(desc))
+ break;
+
+ if ((ring->dirty + ring_size) == ring->curr) {
+ ag71xx_assert(0);
+ break;
+ }
+
+ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
+
+ pktlen = desc->ctrl & pktlen_mask;
+ pktlen -= ETH_FCS_LEN;
+
+ dma_unmap_single(&ag->pdev->dev, ring->buf[i].dma_addr,
+ ag->rx_buf_size, DMA_FROM_DEVICE);
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pktlen;
+
+ skb = build_skb(ring->buf[i].rx_buf, ag71xx_buffer_size(ag));
+ if (!skb) {
+ skb_free_frag(ring->buf[i].rx_buf);
+ goto next;
+ }
+
+ skb_reserve(skb, offset);
+ skb_put(skb, pktlen);
+
+ if (err) {
+ dev->stats.rx_dropped++;
+ kfree_skb(skb);
+ } else {
+ skb->dev = dev;
+ skb->ip_summed = CHECKSUM_NONE;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ list_add_tail(&skb->list, &rx_list);
+#else
+ __skb_queue_tail(&queue, skb);
+#endif
+ }
+
+next:
+ ring->buf[i].rx_buf = NULL;
+ done++;
+
+ ring->curr++;
+ }
+
+ ag71xx_ring_rx_refill(ag);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ list_for_each_entry_safe(skb, next, &rx_list, list)
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_receive_skb_list(&rx_list);
+#else
+ while ((skb = __skb_dequeue(&queue)) != NULL) {
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_receive_skb(skb);
+ }
+#endif
+
+ DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
+ dev->name, ring->curr, ring->dirty, done);
+
+ return done;
+}
+
+static int ag71xx_poll(struct napi_struct *napi, int limit)
+{
+ struct ag71xx *ag = container_of(napi, struct ag71xx, napi);
+ struct net_device *dev = ag->dev;
+ struct ag71xx_ring *rx_ring = &ag->rx_ring;
+ int rx_ring_size = BIT(rx_ring->order);
+ unsigned long flags;
+ u32 status;
+ int tx_done;
+ int rx_done;
+
+ tx_done = ag71xx_tx_packets(ag, false);
+
+ DBG("%s: processing RX ring\n", dev->name);
+ rx_done = ag71xx_rx_packets(ag, limit);
+
+ ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done);
+
+ if (rx_ring->buf[rx_ring->dirty % rx_ring_size].rx_buf == NULL)
+ goto oom;
+
+ status = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
+ if (unlikely(status & RX_STATUS_OF)) {
+ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF);
+ dev->stats.rx_fifo_errors++;
+
+ /* restart RX */
+ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
+ }
+
+ if (rx_done < limit) {
+ if (status & RX_STATUS_PR)
+ goto more;
+
+ status = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
+ if (status & TX_STATUS_PS)
+ goto more;
+
+ DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n",
+ dev->name, rx_done, tx_done, limit);
+
+ napi_complete(napi);
+
+ /* enable interrupts */
+ spin_lock_irqsave(&ag->lock, flags);
+ ag71xx_int_enable(ag, AG71XX_INT_POLL);
+ spin_unlock_irqrestore(&ag->lock, flags);
+ return rx_done;
+ }
+
+more:
+ DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n",
+ dev->name, rx_done, tx_done, limit);
+ return limit;
+
+oom:
+ if (netif_msg_rx_err(ag))
+ pr_info("%s: out of memory\n", dev->name);
+
+ mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL);
+ napi_complete(napi);
+ return 0;
+}
+
+static irqreturn_t ag71xx_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct ag71xx *ag = netdev_priv(dev);
+ u32 status;
+
+ status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS);
+ ag71xx_dump_intr(ag, "raw", status);
+
+ if (unlikely(!status))
+ return IRQ_NONE;
+
+ if (unlikely(status & AG71XX_INT_ERR)) {
+ if (status & AG71XX_INT_TX_BE) {
+ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE);
+ dev_err(&dev->dev, "TX BUS error\n");
+ }
+ if (status & AG71XX_INT_RX_BE) {
+ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE);
+ dev_err(&dev->dev, "RX BUS error\n");
+ }
+ }
+
+ if (likely(status & AG71XX_INT_POLL)) {
+ ag71xx_int_disable(ag, AG71XX_INT_POLL);
+ DBG("%s: enable polling mode\n", dev->name);
+ napi_schedule(&ag->napi);
+ }
+
+ ag71xx_debugfs_update_int_stats(ag, status);
+
+ return IRQ_HANDLED;
+}
+
+static int ag71xx_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+
+ dev->mtu = new_mtu;
+ ag71xx_wr(ag, AG71XX_REG_MAC_MFL,
+ ag71xx_max_frame_len(dev->mtu));
+
+ return 0;
+}
+
+static const struct net_device_ops ag71xx_netdev_ops = {
+ .ndo_open = ag71xx_open,
+ .ndo_stop = ag71xx_stop,
+ .ndo_start_xmit = ag71xx_hard_start_xmit,
+ .ndo_do_ioctl = ag71xx_do_ioctl,
+ .ndo_tx_timeout = ag71xx_tx_timeout,
+ .ndo_change_mtu = ag71xx_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static int ag71xx_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct net_device *dev;
+ struct resource *res;
+ struct ag71xx *ag;
+ const void *mac_addr;
+ u32 max_frame_len;
+ int tx_size, err;
+
+ if (!np)
+ return -ENODEV;
+
+ dev = devm_alloc_etherdev(&pdev->dev, sizeof(*ag));
+ if (!dev)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
+ err = ag71xx_setup_gmac(np);
+ if (err)
+ return err;
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ ag = netdev_priv(dev);
+ ag->pdev = pdev;
+ ag->dev = dev;
+ ag->msg_enable = netif_msg_init(ag71xx_msg_level,
+ AG71XX_DEFAULT_MSG_ENABLE);
+ spin_lock_init(&ag->lock);
+
+ ag->mac_reset = devm_reset_control_get_exclusive(&pdev->dev, "mac");
+ if (IS_ERR(ag->mac_reset)) {
+ dev_err(&pdev->dev, "missing mac reset\n");
+ return PTR_ERR(ag->mac_reset);
+ }
+
+ ag->mdio_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "mdio");
+
+ if (of_property_read_u32_array(np, "fifo-data", ag->fifodata, 3)) {
+ if (of_device_is_compatible(np, "qca,ar9130-eth") ||
+ of_device_is_compatible(np, "qca,ar7100-eth")) {
+ ag->fifodata[0] = 0x0fff0000;
+ ag->fifodata[1] = 0x00001fff;
+ } else {
+ ag->fifodata[0] = 0x0010ffff;
+ ag->fifodata[1] = 0x015500aa;
+ ag->fifodata[2] = 0x01f00140;
+ }
+ if (of_device_is_compatible(np, "qca,ar9130-eth"))
+ ag->fifodata[2] = 0x00780fff;
+ else if (of_device_is_compatible(np, "qca,ar7100-eth"))
+ ag->fifodata[2] = 0x008001ff;
+ }
+
+ if (of_property_read_u32_array(np, "pll-data", ag->plldata, 3))
+ dev_dbg(&pdev->dev, "failed to read pll-data property\n");
+
+ if (of_property_read_u32_array(np, "pll-reg", ag->pllreg, 3))
+ dev_dbg(&pdev->dev, "failed to read pll-reg property\n");
+
+ ag->pllregmap = syscon_regmap_lookup_by_phandle(np, "pll-handle");
+ if (IS_ERR(ag->pllregmap)) {
+ dev_dbg(&pdev->dev, "failed to read pll-handle property\n");
+ ag->pllregmap = NULL;
+ }
+
+ ag->mac_base = devm_ioremap_nocache(&pdev->dev, res->start,
+ res->end - res->start + 1);
+ if (!ag->mac_base)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (res) {
+ ag->mii_base = devm_ioremap_nocache(&pdev->dev, res->start,
+ res->end - res->start + 1);
+ if (!ag->mii_base)
+ return -ENOMEM;
+ }
+
+ dev->irq = platform_get_irq(pdev, 0);
+ err = devm_request_irq(&pdev->dev, dev->irq, ag71xx_interrupt,
+ 0x0, dev_name(&pdev->dev), dev);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
+ return err;
+ }
+
+ dev->netdev_ops = &ag71xx_netdev_ops;
+ dev->ethtool_ops = &ag71xx_ethtool_ops;
+
+ INIT_DELAYED_WORK(&ag->restart_work, ag71xx_restart_work_func);
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
+ init_timer(&ag->oom_timer);
+ ag->oom_timer.data = (unsigned long) dev;
+ ag->oom_timer.function = ag71xx_oom_timer_handler;
+#else
+ timer_setup(&ag->oom_timer, ag71xx_oom_timer_handler, 0);
+#endif
+
+ tx_size = AG71XX_TX_RING_SIZE_DEFAULT;
+ ag->rx_ring.order = ag71xx_ring_size_order(AG71XX_RX_RING_SIZE_DEFAULT);
+
+ if (of_device_is_compatible(np, "qca,ar9340-eth") ||
+ of_device_is_compatible(np, "qca,qca9530-eth") ||
+ of_device_is_compatible(np, "qca,qca9550-eth") ||
+ of_device_is_compatible(np, "qca,qca9560-eth"))
+ ag->desc_pktlen_mask = SZ_16K - 1;
+ else
+ ag->desc_pktlen_mask = SZ_4K - 1;
+
+ if (ag->desc_pktlen_mask == SZ_16K - 1 &&
+ !of_device_is_compatible(np, "qca,qca9550-eth") &&
+ !of_device_is_compatible(np, "qca,qca9560-eth"))
+ max_frame_len = ag->desc_pktlen_mask;
+ else
+ max_frame_len = 1540;
+
+ dev->min_mtu = 68;
+ dev->max_mtu = max_frame_len - ag71xx_max_frame_len(0);
+
+ if (of_device_is_compatible(np, "qca,ar7240-eth") ||
+ of_device_is_compatible(np, "qca,ar7241-eth") ||
+ of_device_is_compatible(np, "qca,ar7242-eth") ||
+ of_device_is_compatible(np, "qca,ar9330-eth") ||
+ of_device_is_compatible(np, "qca,ar9340-eth") ||
+ of_device_is_compatible(np, "qca,qca9530-eth") ||
+ of_device_is_compatible(np, "qca,qca9550-eth") ||
+ of_device_is_compatible(np, "qca,qca9560-eth"))
+ ag->tx_hang_workaround = 1;
+
+ ag->rx_buf_offset = NET_SKB_PAD;
+ if (!of_device_is_compatible(np, "qca,ar7100-eth") &&
+ !of_device_is_compatible(np, "qca,ar9130-eth"))
+ ag->rx_buf_offset += NET_IP_ALIGN;
+
+ if (of_device_is_compatible(np, "qca,ar7100-eth")) {
+ ag->tx_ring.desc_split = AG71XX_TX_RING_SPLIT;
+ tx_size *= AG71XX_TX_RING_DS_PER_PKT;
+ }
+ ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
+
+ ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
+ sizeof(struct ag71xx_desc),
+ &ag->stop_desc_dma, GFP_KERNEL);
+ if (!ag->stop_desc)
+ return -ENOMEM;
+
+ ag->stop_desc->data = 0;
+ ag->stop_desc->ctrl = 0;
+ ag->stop_desc->next = (u32) ag->stop_desc_dma;
+
+ mac_addr = of_get_mac_address(np);
+ if (mac_addr)
+ memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
+ if (!mac_addr || !is_valid_ether_addr(dev->dev_addr)) {
+ dev_err(&pdev->dev, "invalid MAC address, using random address\n");
+ eth_random_addr(dev->dev_addr);
+ }
+
+ ag->phy_if_mode = of_get_phy_mode(np);
+ if (ag->phy_if_mode < 0) {
+ dev_err(&pdev->dev, "missing phy-mode property in DT\n");
+ return ag->phy_if_mode;
+ }
+
+ if (of_property_read_u32(np, "qca,mac-idx", &ag->mac_idx))
+ ag->mac_idx = -1;
+ if (ag->mii_base)
+ switch (ag->mac_idx) {
+ case 0:
+ ath79_mii0_ctrl_set_if(ag);
+ break;
+ case 1:
+ ath79_mii1_ctrl_set_if(ag);
+ break;
+ default:
+ break;
+ }
+
+ netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
+
+ ag71xx_dump_regs(ag);
+
+ ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);
+
+ ag71xx_hw_init(ag);
+
+ ag71xx_dump_regs(ag);
+
+ /*
+ * populate current node to register mdio-bus as a subdevice.
+ * the mdio bus works independently on ar7241 and later chips
+ * and we need to load mdio1 before gmac0, which can be done
+ * by adding a "simple-mfd" compatible to gmac node. The
+ * following code checks OF_POPULATED_BUS flag before populating
+ * to avoid duplicated population.
+ */
+ if (!of_node_check_flag(np, OF_POPULATED_BUS)) {
+ err = of_platform_populate(np, NULL, NULL, &pdev->dev);
+ if (err)
+ return err;
+ }
+
+ err = ag71xx_phy_connect(ag);
+ if (err)
+ return err;
+
+ err = ag71xx_debugfs_init(ag);
+ if (err)
+ goto err_phy_disconnect;
+
+ platform_set_drvdata(pdev, dev);
+
+ err = register_netdev(dev);
+ if (err) {
+ dev_err(&pdev->dev, "unable to register net device\n");
+ platform_set_drvdata(pdev, NULL);
+ ag71xx_debugfs_exit(ag);
+ goto err_phy_disconnect;
+ }
+
+ pr_info("%s: Atheros AG71xx at 0x%08lx, irq %d, mode: %s\n",
+ dev->name, (unsigned long) ag->mac_base, dev->irq,
+ phy_modes(ag->phy_if_mode));
+
+ return 0;
+
+err_phy_disconnect:
+ ag71xx_phy_disconnect(ag);
+ return err;
+}
+
+static int ag71xx_remove(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct ag71xx *ag;
+
+ if (!dev)
+ return 0;
+
+ ag = netdev_priv(dev);
+ ag71xx_debugfs_exit(ag);
+ ag71xx_phy_disconnect(ag);
+ unregister_netdev(dev);
+ platform_set_drvdata(pdev, NULL);
+ return 0;
+}
+
+static const struct of_device_id ag71xx_match[] = {
+ { .compatible = "qca,ar7100-eth" },
+ { .compatible = "qca,ar7240-eth" },
+ { .compatible = "qca,ar7241-eth" },
+ { .compatible = "qca,ar7242-eth" },
+ { .compatible = "qca,ar9130-eth" },
+ { .compatible = "qca,ar9330-eth" },
+ { .compatible = "qca,ar9340-eth" },
+ { .compatible = "qca,qca9530-eth" },
+ { .compatible = "qca,qca9550-eth" },
+ { .compatible = "qca,qca9560-eth" },
+ {}
+};
+
+static struct platform_driver ag71xx_driver = {
+ .probe = ag71xx_probe,
+ .remove = ag71xx_remove,
+ .driver = {
+ .name = AG71XX_DRV_NAME,
+ .of_match_table = ag71xx_match,
+ }
+};
+
+static int __init ag71xx_module_init(void)
+{
+ int ret;
+
+ ret = ag71xx_debugfs_root_init();
+ if (ret)
+ goto err_out;
+
+ ret = platform_driver_register(&ag71xx_driver);
+ if (ret)
+ goto err_debugfs_exit;
+
+ return 0;
+
+err_debugfs_exit:
+ ag71xx_debugfs_root_exit();
+err_out:
+ return ret;
+}
+
+static void __exit ag71xx_module_exit(void)
+{
+ platform_driver_unregister(&ag71xx_driver);
+ ag71xx_debugfs_root_exit();
+}
+
+module_init(ag71xx_module_init);
+module_exit(ag71xx_module_exit);
+
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>");
+MODULE_AUTHOR("Felix Fietkau <nbd@nbd.name>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" AG71XX_DRV_NAME);
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Based on Atheros' AG7100 driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/of_mdio.h>
+#include "ag71xx.h"
+
+#define AG71XX_MDIO_RETRY 1000
+#define AG71XX_MDIO_DELAY 5
+
+static int bus_count;
+
+static int ag71xx_mdio_wait_busy(struct ag71xx_mdio *am)
+{
+ int i;
+
+ for (i = 0; i < AG71XX_MDIO_RETRY; i++) {
+ u32 busy;
+
+ udelay(AG71XX_MDIO_DELAY);
+
+ regmap_read(am->mii_regmap, AG71XX_REG_MII_IND, &busy);
+ if (!busy)
+ return 0;
+
+ udelay(AG71XX_MDIO_DELAY);
+ }
+
+ pr_err("%s: MDIO operation timed out\n", am->mii_bus->name);
+
+ return -ETIMEDOUT;
+}
+
+static int ag71xx_mdio_mii_read(struct mii_bus *bus, int addr, int reg)
+{
+ struct ag71xx_mdio *am = bus->priv;
+ int err;
+ int ret;
+
+ err = ag71xx_mdio_wait_busy(am);
+ if (err)
+ return 0xffff;
+
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_ADDR,
+ ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_READ);
+
+ err = ag71xx_mdio_wait_busy(am);
+ if (err)
+ return 0xffff;
+
+ regmap_read(am->mii_regmap, AG71XX_REG_MII_STATUS, &ret);
+ ret &= 0xffff;
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
+
+ DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret);
+
+ return ret;
+}
+
+static int ag71xx_mdio_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
+{
+ struct ag71xx_mdio *am = bus->priv;
+
+ DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
+
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_ADDR,
+ ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_CTRL, val);
+
+ ag71xx_mdio_wait_busy(am);
+
+ return 0;
+}
+
+static const u32 ar71xx_mdio_div_table[] = {
+ 4, 4, 6, 8, 10, 14, 20, 28,
+};
+
+static const u32 ar7240_mdio_div_table[] = {
+ 2, 2, 4, 6, 8, 12, 18, 26, 32, 40, 48, 56, 62, 70, 78, 96,
+};
+
+static const u32 ar933x_mdio_div_table[] = {
+ 4, 4, 6, 8, 10, 14, 20, 28, 34, 42, 50, 58, 66, 74, 82, 98,
+};
+
+static int ag71xx_mdio_get_divider(struct device_node *np, u32 *div)
+{
+ struct clk *ref_clk = of_clk_get(np, 0);
+ unsigned long ref_clock;
+ u32 mdio_clock;
+ const u32 *table;
+ int ndivs, i;
+
+ if (IS_ERR(ref_clk))
+ return -EINVAL;
+
+ ref_clock = clk_get_rate(ref_clk);
+ clk_put(ref_clk);
+
+ if(of_property_read_u32(np, "qca,mdio-max-frequency", &mdio_clock)) {
+ if (of_property_read_bool(np, "builtin-switch"))
+ mdio_clock = 5000000;
+ else
+ mdio_clock = 2000000;
+ }
+
+ if (of_device_is_compatible(np, "qca,ar9330-mdio") ||
+ of_device_is_compatible(np, "qca,ar9340-mdio")) {
+ table = ar933x_mdio_div_table;
+ ndivs = ARRAY_SIZE(ar933x_mdio_div_table);
+ } else if (of_device_is_compatible(np, "qca,ar7240-mdio")) {
+ table = ar7240_mdio_div_table;
+ ndivs = ARRAY_SIZE(ar7240_mdio_div_table);
+ } else {
+ table = ar71xx_mdio_div_table;
+ ndivs = ARRAY_SIZE(ar71xx_mdio_div_table);
+ }
+
+ for (i = 0; i < ndivs; i++) {
+ unsigned long t;
+
+ t = ref_clock / table[i];
+ if (t <= mdio_clock) {
+ *div = i;
+ return 0;
+ }
+ }
+
+ return -ENOENT;
+}
+
+static int ag71xx_mdio_reset(struct mii_bus *bus)
+{
+ struct device_node *np = bus->dev.of_node;
+ struct ag71xx_mdio *am = bus->priv;
+ bool builtin_switch;
+ u32 t;
+
+ builtin_switch = of_property_read_bool(np, "builtin-switch");
+
+ if (ag71xx_mdio_get_divider(np, &t)) {
+ if (of_device_is_compatible(np, "qca,ar9340-mdio"))
+ t = MII_CFG_CLK_DIV_58;
+ else if (builtin_switch)
+ t = MII_CFG_CLK_DIV_10;
+ else
+ t = MII_CFG_CLK_DIV_28;
+ }
+
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_CFG, t | MII_CFG_RESET);
+ udelay(100);
+
+ regmap_write(am->mii_regmap, AG71XX_REG_MII_CFG, t);
+ udelay(100);
+
+ return 0;
+}
+
+static int ag71xx_mdio_probe(struct platform_device *pdev)
+{
+ struct device *amdev = &pdev->dev;
+ struct device_node *np = pdev->dev.of_node;
+ struct ag71xx_mdio *am;
+ struct mii_bus *mii_bus;
+ bool builtin_switch;
+ int i, err;
+
+ am = devm_kzalloc(amdev, sizeof(*am), GFP_KERNEL);
+ if (!am)
+ return -ENOMEM;
+
+ am->mii_regmap = syscon_regmap_lookup_by_phandle(np, "regmap");
+ if (IS_ERR(am->mii_regmap))
+ return PTR_ERR(am->mii_regmap);
+
+ mii_bus = devm_mdiobus_alloc(amdev);
+ if (!mii_bus)
+ return -ENOMEM;
+
+ am->mdio_reset = devm_reset_control_get_exclusive(amdev, "mdio");
+ builtin_switch = of_property_read_bool(np, "builtin-switch");
+
+ mii_bus->name = "ag71xx_mdio";
+ mii_bus->read = ag71xx_mdio_mii_read;
+ mii_bus->write = ag71xx_mdio_mii_write;
+ mii_bus->reset = ag71xx_mdio_reset;
+ mii_bus->priv = am;
+ mii_bus->parent = amdev;
+ snprintf(mii_bus->id, MII_BUS_ID_SIZE, "%s.%d", np->name, bus_count++);
+
+ if (!builtin_switch &&
+ of_property_read_u32(np, "phy-mask", &mii_bus->phy_mask))
+ mii_bus->phy_mask = 0;
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ mii_bus->irq[i] = PHY_POLL;
+
+ if (!IS_ERR(am->mdio_reset)) {
+ reset_control_assert(am->mdio_reset);
+ msleep(100);
+ reset_control_deassert(am->mdio_reset);
+ msleep(200);
+ }
+
+ err = of_mdiobus_register(mii_bus, np);
+ if (err)
+ return err;
+
+ am->mii_bus = mii_bus;
+ platform_set_drvdata(pdev, am);
+
+ return 0;
+}
+
+static int ag71xx_mdio_remove(struct platform_device *pdev)
+{
+ struct ag71xx_mdio *am = platform_get_drvdata(pdev);
+
+ mdiobus_unregister(am->mii_bus);
+ return 0;
+}
+
+static const struct of_device_id ag71xx_mdio_match[] = {
+ { .compatible = "qca,ar7240-mdio" },
+ { .compatible = "qca,ar9330-mdio" },
+ { .compatible = "qca,ar9340-mdio" },
+ { .compatible = "qca,ath79-mdio" },
+ {}
+};
+
+static struct platform_driver ag71xx_mdio_driver = {
+ .probe = ag71xx_mdio_probe,
+ .remove = ag71xx_mdio_remove,
+ .driver = {
+ .name = "ag71xx-mdio",
+ .of_match_table = ag71xx_mdio_match,
+ }
+};
+
+module_platform_driver(ag71xx_mdio_driver);
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Atheros AR71xx built-in ethernet mac driver
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Based on Atheros' AG7100 driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/of_mdio.h>
+#include "ag71xx.h"
+
+static void ag71xx_phy_link_adjust(struct net_device *dev)
+{
+ struct ag71xx *ag = netdev_priv(dev);
+ struct phy_device *phydev = ag->phy_dev;
+ unsigned long flags;
+ int status_change = 0;
+
+ spin_lock_irqsave(&ag->lock, flags);
+
+ if (phydev->link) {
+ if (ag->duplex != phydev->duplex
+ || ag->speed != phydev->speed) {
+ status_change = 1;
+ }
+ }
+
+ if (phydev->link != ag->link)
+ status_change = 1;
+
+ ag->link = phydev->link;
+ ag->duplex = phydev->duplex;
+ ag->speed = phydev->speed;
+
+ if (status_change)
+ ag71xx_link_adjust(ag);
+
+ spin_unlock_irqrestore(&ag->lock, flags);
+}
+
+int ag71xx_phy_connect(struct ag71xx *ag)
+{
+ struct device_node *np = ag->pdev->dev.of_node;
+ struct device_node *phy_node;
+ int ret;
+
+ if (of_phy_is_fixed_link(np)) {
+ ret = of_phy_register_fixed_link(np);
+ if (ret < 0) {
+ dev_err(&ag->pdev->dev,
+ "Failed to register fixed PHY link: %d\n", ret);
+ return ret;
+ }
+
+ phy_node = of_node_get(np);
+ } else {
+ phy_node = of_parse_phandle(np, "phy-handle", 0);
+ }
+
+ if (!phy_node) {
+ dev_err(&ag->pdev->dev,
+ "Could not find valid phy node\n");
+ return -ENODEV;
+ }
+
+ ag->phy_dev = of_phy_connect(ag->dev, phy_node, ag71xx_phy_link_adjust,
+ 0, ag->phy_if_mode);
+
+ of_node_put(phy_node);
+
+ if (!ag->phy_dev) {
+ dev_err(&ag->pdev->dev,
+ "Could not connect to PHY device. Deferring probe.\n");
+ return -EPROBE_DEFER;
+ }
+
+ dev_info(&ag->pdev->dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
+ phydev_name(ag->phy_dev),
+ ag->phy_dev->phy_id, ag->phy_dev->drv->name);
+
+ return 0;
+}
+
+void ag71xx_phy_disconnect(struct ag71xx *ag)
+{
+ phy_disconnect(ag->phy_dev);
+}
+++ /dev/null
-config AG71XX
- tristate "Atheros AR7XXX/AR9XXX built-in ethernet mac support"
- depends on ATH79
- select PHYLIB
- help
- If you wish to compile a kernel for AR7XXX/91XXX and enable
- ethernet support, then you should always answer Y to this.
-
-if AG71XX
-
-config AG71XX_DEBUG
- bool "Atheros AR71xx built-in ethernet driver debugging"
- default n
- help
- Atheros AR71xx built-in ethernet driver debugging messages.
-
-config AG71XX_DEBUG_FS
- bool "Atheros AR71xx built-in ethernet driver debugfs support"
- depends on DEBUG_FS
- default n
- help
- Say Y, if you need access to various statistics provided by
- the ag71xx driver.
-
-endif
+++ /dev/null
-#
-# Makefile for the Atheros AR71xx built-in ethernet macs
-#
-
-ag71xx-y += ag71xx_main.o
-ag71xx-y += ag71xx_gmac.o
-ag71xx-y += ag71xx_ethtool.o
-ag71xx-y += ag71xx_phy.o
-
-ag71xx-$(CONFIG_AG71XX_DEBUG_FS) += ag71xx_debugfs.o
-
-obj-$(CONFIG_AG71XX) += ag71xx_mdio.o
-obj-$(CONFIG_AG71XX) += ag71xx.o
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#ifndef __AG71XX_H
-#define __AG71XX_H
-
-#include <linux/kernel.h>
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/random.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/ethtool.h>
-#include <linux/etherdevice.h>
-#include <linux/if_vlan.h>
-#include <linux/phy.h>
-#include <linux/skbuff.h>
-#include <linux/dma-mapping.h>
-#include <linux/workqueue.h>
-#include <linux/reset.h>
-#include <linux/of.h>
-#include <linux/mfd/syscon.h>
-#include <linux/regmap.h>
-
-#include <linux/bitops.h>
-
-#include <asm/mach-ath79/ar71xx_regs.h>
-#include <asm/mach-ath79/ath79.h>
-
-#define AG71XX_DRV_NAME "ag71xx"
-
-/*
- * For our NAPI weight bigger does *NOT* mean better - it means more
- * D-cache misses and lots more wasted cycles than we'll ever
- * possibly gain from saving instructions.
- */
-#define AG71XX_NAPI_WEIGHT 32
-#define AG71XX_OOM_REFILL (1 + HZ/10)
-
-#define AG71XX_INT_ERR (AG71XX_INT_RX_BE | AG71XX_INT_TX_BE)
-#define AG71XX_INT_TX (AG71XX_INT_TX_PS)
-#define AG71XX_INT_RX (AG71XX_INT_RX_PR | AG71XX_INT_RX_OF)
-
-#define AG71XX_INT_POLL (AG71XX_INT_RX | AG71XX_INT_TX)
-#define AG71XX_INT_INIT (AG71XX_INT_ERR | AG71XX_INT_POLL)
-
-#define AG71XX_TX_MTU_LEN 1540
-
-#define AG71XX_TX_RING_SPLIT 512
-#define AG71XX_TX_RING_DS_PER_PKT DIV_ROUND_UP(AG71XX_TX_MTU_LEN, \
- AG71XX_TX_RING_SPLIT)
-#define AG71XX_TX_RING_SIZE_DEFAULT 128
-#define AG71XX_RX_RING_SIZE_DEFAULT 256
-
-#define AG71XX_TX_RING_SIZE_MAX 128
-#define AG71XX_RX_RING_SIZE_MAX 256
-
-#ifdef CONFIG_AG71XX_DEBUG
-#define DBG(fmt, args...) pr_debug(fmt, ## args)
-#else
-#define DBG(fmt, args...) do {} while (0)
-#endif
-
-#define ag71xx_assert(_cond) \
-do { \
- if (_cond) \
- break; \
- printk("%s,%d: assertion failed\n", __FILE__, __LINE__); \
- BUG(); \
-} while (0)
-
-struct ag71xx_desc {
- u32 data;
- u32 ctrl;
-#define DESC_EMPTY BIT(31)
-#define DESC_MORE BIT(24)
-#define DESC_PKTLEN_M 0xfff
- u32 next;
- u32 pad;
-} __attribute__((aligned(4)));
-
-#define AG71XX_DESC_SIZE roundup(sizeof(struct ag71xx_desc), \
- L1_CACHE_BYTES)
-
-struct ag71xx_buf {
- union {
- struct sk_buff *skb;
- void *rx_buf;
- };
- union {
- dma_addr_t dma_addr;
- unsigned int len;
- };
-};
-
-struct ag71xx_ring {
- struct ag71xx_buf *buf;
- u8 *descs_cpu;
- dma_addr_t descs_dma;
- u16 desc_split;
- u16 order;
- unsigned int curr;
- unsigned int dirty;
-};
-
-struct ag71xx_int_stats {
- unsigned long rx_pr;
- unsigned long rx_be;
- unsigned long rx_of;
- unsigned long tx_ps;
- unsigned long tx_be;
- unsigned long tx_ur;
- unsigned long total;
-};
-
-struct ag71xx_napi_stats {
- unsigned long napi_calls;
- unsigned long rx_count;
- unsigned long rx_packets;
- unsigned long rx_packets_max;
- unsigned long tx_count;
- unsigned long tx_packets;
- unsigned long tx_packets_max;
-
- unsigned long rx[AG71XX_NAPI_WEIGHT + 1];
- unsigned long tx[AG71XX_NAPI_WEIGHT + 1];
-};
-
-struct ag71xx_debug {
- struct dentry *debugfs_dir;
-
- struct ag71xx_int_stats int_stats;
- struct ag71xx_napi_stats napi_stats;
-};
-
-struct ag71xx {
- /*
- * Critical data related to the per-packet data path are clustered
- * early in this structure to help improve the D-cache footprint.
- */
- struct ag71xx_ring rx_ring ____cacheline_aligned;
- struct ag71xx_ring tx_ring ____cacheline_aligned;
-
- int mac_idx;
-
- u16 desc_pktlen_mask;
- u16 rx_buf_size;
- u8 rx_buf_offset;
- u8 tx_hang_workaround:1;
-
- struct net_device *dev;
- struct platform_device *pdev;
- spinlock_t lock;
- struct napi_struct napi;
- u32 msg_enable;
-
- /*
- * From this point onwards we're not looking at per-packet fields.
- */
- void __iomem *mac_base;
- void __iomem *mii_base;
-
- struct ag71xx_desc *stop_desc;
- dma_addr_t stop_desc_dma;
-
- struct phy_device *phy_dev;
- void *phy_priv;
- int phy_if_mode;
-
- unsigned int link;
- unsigned int speed;
- int duplex;
-
- struct delayed_work restart_work;
- struct timer_list oom_timer;
-
- struct reset_control *mac_reset;
- struct reset_control *mdio_reset;
-
- u32 fifodata[3];
- u32 plldata[3];
- u32 pllreg[3];
- struct regmap *pllregmap;
-
-#ifdef CONFIG_AG71XX_DEBUG_FS
- struct ag71xx_debug debug;
-#endif
-};
-
-struct ag71xx_mdio {
- struct reset_control *mdio_reset;
- struct mii_bus *mii_bus;
- struct regmap *mii_regmap;
-};
-
-extern struct ethtool_ops ag71xx_ethtool_ops;
-void ag71xx_link_adjust(struct ag71xx *ag);
-
-int ag71xx_phy_connect(struct ag71xx *ag);
-void ag71xx_phy_disconnect(struct ag71xx *ag);
-
-static inline int ag71xx_desc_empty(struct ag71xx_desc *desc)
-{
- return (desc->ctrl & DESC_EMPTY) != 0;
-}
-
-static inline struct ag71xx_desc *
-ag71xx_ring_desc(struct ag71xx_ring *ring, int idx)
-{
- return (struct ag71xx_desc *) &ring->descs_cpu[idx * AG71XX_DESC_SIZE];
-}
-
-static inline int
-ag71xx_ring_size_order(int size)
-{
- return fls(size - 1);
-}
-
-/* Register offsets */
-#define AG71XX_REG_MAC_CFG1 0x0000
-#define AG71XX_REG_MAC_CFG2 0x0004
-#define AG71XX_REG_MAC_IPG 0x0008
-#define AG71XX_REG_MAC_HDX 0x000c
-#define AG71XX_REG_MAC_MFL 0x0010
-#define AG71XX_REG_MII_CFG 0x0020
-#define AG71XX_REG_MII_CMD 0x0024
-#define AG71XX_REG_MII_ADDR 0x0028
-#define AG71XX_REG_MII_CTRL 0x002c
-#define AG71XX_REG_MII_STATUS 0x0030
-#define AG71XX_REG_MII_IND 0x0034
-#define AG71XX_REG_MAC_IFCTL 0x0038
-#define AG71XX_REG_MAC_ADDR1 0x0040
-#define AG71XX_REG_MAC_ADDR2 0x0044
-#define AG71XX_REG_FIFO_CFG0 0x0048
-#define AG71XX_REG_FIFO_CFG1 0x004c
-#define AG71XX_REG_FIFO_CFG2 0x0050
-#define AG71XX_REG_FIFO_CFG3 0x0054
-#define AG71XX_REG_FIFO_CFG4 0x0058
-#define AG71XX_REG_FIFO_CFG5 0x005c
-#define AG71XX_REG_FIFO_RAM0 0x0060
-#define AG71XX_REG_FIFO_RAM1 0x0064
-#define AG71XX_REG_FIFO_RAM2 0x0068
-#define AG71XX_REG_FIFO_RAM3 0x006c
-#define AG71XX_REG_FIFO_RAM4 0x0070
-#define AG71XX_REG_FIFO_RAM5 0x0074
-#define AG71XX_REG_FIFO_RAM6 0x0078
-#define AG71XX_REG_FIFO_RAM7 0x007c
-
-#define AG71XX_REG_TX_CTRL 0x0180
-#define AG71XX_REG_TX_DESC 0x0184
-#define AG71XX_REG_TX_STATUS 0x0188
-#define AG71XX_REG_RX_CTRL 0x018c
-#define AG71XX_REG_RX_DESC 0x0190
-#define AG71XX_REG_RX_STATUS 0x0194
-#define AG71XX_REG_INT_ENABLE 0x0198
-#define AG71XX_REG_INT_STATUS 0x019c
-
-#define AG71XX_REG_FIFO_DEPTH 0x01a8
-#define AG71XX_REG_RX_SM 0x01b0
-#define AG71XX_REG_TX_SM 0x01b4
-
-#define MAC_CFG1_TXE BIT(0) /* Tx Enable */
-#define MAC_CFG1_STX BIT(1) /* Synchronize Tx Enable */
-#define MAC_CFG1_RXE BIT(2) /* Rx Enable */
-#define MAC_CFG1_SRX BIT(3) /* Synchronize Rx Enable */
-#define MAC_CFG1_TFC BIT(4) /* Tx Flow Control Enable */
-#define MAC_CFG1_RFC BIT(5) /* Rx Flow Control Enable */
-#define MAC_CFG1_LB BIT(8) /* Loopback mode */
-#define MAC_CFG1_SR BIT(31) /* Soft Reset */
-
-#define MAC_CFG2_FDX BIT(0)
-#define MAC_CFG2_CRC_EN BIT(1)
-#define MAC_CFG2_PAD_CRC_EN BIT(2)
-#define MAC_CFG2_LEN_CHECK BIT(4)
-#define MAC_CFG2_HUGE_FRAME_EN BIT(5)
-#define MAC_CFG2_IF_1000 BIT(9)
-#define MAC_CFG2_IF_10_100 BIT(8)
-
-#define FIFO_CFG0_WTM BIT(0) /* Watermark Module */
-#define FIFO_CFG0_RXS BIT(1) /* Rx System Module */
-#define FIFO_CFG0_RXF BIT(2) /* Rx Fabric Module */
-#define FIFO_CFG0_TXS BIT(3) /* Tx System Module */
-#define FIFO_CFG0_TXF BIT(4) /* Tx Fabric Module */
-#define FIFO_CFG0_ALL (FIFO_CFG0_WTM | FIFO_CFG0_RXS | FIFO_CFG0_RXF \
- | FIFO_CFG0_TXS | FIFO_CFG0_TXF)
-
-#define FIFO_CFG0_ENABLE_SHIFT 8
-
-#define FIFO_CFG4_DE BIT(0) /* Drop Event */
-#define FIFO_CFG4_DV BIT(1) /* RX_DV Event */
-#define FIFO_CFG4_FC BIT(2) /* False Carrier */
-#define FIFO_CFG4_CE BIT(3) /* Code Error */
-#define FIFO_CFG4_CR BIT(4) /* CRC error */
-#define FIFO_CFG4_LM BIT(5) /* Length Mismatch */
-#define FIFO_CFG4_LO BIT(6) /* Length out of range */
-#define FIFO_CFG4_OK BIT(7) /* Packet is OK */
-#define FIFO_CFG4_MC BIT(8) /* Multicast Packet */
-#define FIFO_CFG4_BC BIT(9) /* Broadcast Packet */
-#define FIFO_CFG4_DR BIT(10) /* Dribble */
-#define FIFO_CFG4_LE BIT(11) /* Long Event */
-#define FIFO_CFG4_CF BIT(12) /* Control Frame */
-#define FIFO_CFG4_PF BIT(13) /* Pause Frame */
-#define FIFO_CFG4_UO BIT(14) /* Unsupported Opcode */
-#define FIFO_CFG4_VT BIT(15) /* VLAN tag detected */
-#define FIFO_CFG4_FT BIT(16) /* Frame Truncated */
-#define FIFO_CFG4_UC BIT(17) /* Unicast Packet */
-
-#define FIFO_CFG5_DE BIT(0) /* Drop Event */
-#define FIFO_CFG5_DV BIT(1) /* RX_DV Event */
-#define FIFO_CFG5_FC BIT(2) /* False Carrier */
-#define FIFO_CFG5_CE BIT(3) /* Code Error */
-#define FIFO_CFG5_LM BIT(4) /* Length Mismatch */
-#define FIFO_CFG5_LO BIT(5) /* Length Out of Range */
-#define FIFO_CFG5_OK BIT(6) /* Packet is OK */
-#define FIFO_CFG5_MC BIT(7) /* Multicast Packet */
-#define FIFO_CFG5_BC BIT(8) /* Broadcast Packet */
-#define FIFO_CFG5_DR BIT(9) /* Dribble */
-#define FIFO_CFG5_CF BIT(10) /* Control Frame */
-#define FIFO_CFG5_PF BIT(11) /* Pause Frame */
-#define FIFO_CFG5_UO BIT(12) /* Unsupported Opcode */
-#define FIFO_CFG5_VT BIT(13) /* VLAN tag detected */
-#define FIFO_CFG5_LE BIT(14) /* Long Event */
-#define FIFO_CFG5_FT BIT(15) /* Frame Truncated */
-#define FIFO_CFG5_16 BIT(16) /* unknown */
-#define FIFO_CFG5_17 BIT(17) /* unknown */
-#define FIFO_CFG5_SF BIT(18) /* Short Frame */
-#define FIFO_CFG5_BM BIT(19) /* Byte Mode */
-
-#define AG71XX_INT_TX_PS BIT(0)
-#define AG71XX_INT_TX_UR BIT(1)
-#define AG71XX_INT_TX_BE BIT(3)
-#define AG71XX_INT_RX_PR BIT(4)
-#define AG71XX_INT_RX_OF BIT(6)
-#define AG71XX_INT_RX_BE BIT(7)
-
-#define MAC_IFCTL_SPEED BIT(16)
-
-#define MII_CFG_CLK_DIV_4 0
-#define MII_CFG_CLK_DIV_6 2
-#define MII_CFG_CLK_DIV_8 3
-#define MII_CFG_CLK_DIV_10 4
-#define MII_CFG_CLK_DIV_14 5
-#define MII_CFG_CLK_DIV_20 6
-#define MII_CFG_CLK_DIV_28 7
-#define MII_CFG_CLK_DIV_34 8
-#define MII_CFG_CLK_DIV_42 9
-#define MII_CFG_CLK_DIV_50 10
-#define MII_CFG_CLK_DIV_58 11
-#define MII_CFG_CLK_DIV_66 12
-#define MII_CFG_CLK_DIV_74 13
-#define MII_CFG_CLK_DIV_82 14
-#define MII_CFG_CLK_DIV_98 15
-#define MII_CFG_RESET BIT(31)
-
-#define MII_CMD_WRITE 0x0
-#define MII_CMD_READ 0x1
-#define MII_ADDR_SHIFT 8
-#define MII_IND_BUSY BIT(0)
-#define MII_IND_INVALID BIT(2)
-
-#define TX_CTRL_TXE BIT(0) /* Tx Enable */
-
-#define TX_STATUS_PS BIT(0) /* Packet Sent */
-#define TX_STATUS_UR BIT(1) /* Tx Underrun */
-#define TX_STATUS_BE BIT(3) /* Bus Error */
-
-#define RX_CTRL_RXE BIT(0) /* Rx Enable */
-
-#define RX_STATUS_PR BIT(0) /* Packet Received */
-#define RX_STATUS_OF BIT(2) /* Rx Overflow */
-#define RX_STATUS_BE BIT(3) /* Bus Error */
-
-static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
-{
- __raw_writel(value, ag->mac_base + reg);
- /* flush write */
- (void) __raw_readl(ag->mac_base + reg);
-}
-
-static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
-{
- return __raw_readl(ag->mac_base + reg);
-}
-
-static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
-{
- void __iomem *r;
-
- r = ag->mac_base + reg;
- __raw_writel(__raw_readl(r) | mask, r);
- /* flush write */
- (void) __raw_readl(r);
-}
-
-static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
-{
- void __iomem *r;
-
- r = ag->mac_base + reg;
- __raw_writel(__raw_readl(r) & ~mask, r);
- /* flush write */
- (void) __raw_readl(r);
-}
-
-static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints)
-{
- ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints);
-}
-
-static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints)
-{
- ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints);
-}
-
-#ifdef CONFIG_AG71XX_DEBUG_FS
-int ag71xx_debugfs_root_init(void);
-void ag71xx_debugfs_root_exit(void);
-int ag71xx_debugfs_init(struct ag71xx *ag);
-void ag71xx_debugfs_exit(struct ag71xx *ag);
-void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status);
-void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx);
-#else
-static inline int ag71xx_debugfs_root_init(void) { return 0; }
-static inline void ag71xx_debugfs_root_exit(void) {}
-static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; }
-static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {}
-static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag,
- u32 status) {}
-static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag,
- int rx, int tx) {}
-#endif /* CONFIG_AG71XX_DEBUG_FS */
-
-int ag71xx_ar7240_init(struct ag71xx *ag, struct device_node *np);
-void ag71xx_ar7240_cleanup(struct ag71xx *ag);
-
-int ag71xx_setup_gmac(struct device_node *np);
-
-int ar7240sw_phy_read(struct mii_bus *mii, int addr, int reg);
-int ar7240sw_phy_write(struct mii_bus *mii, int addr, int reg, u16 val);
-
-#endif /* _AG71XX_H */
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/debugfs.h>
-
-#include "ag71xx.h"
-
-static struct dentry *ag71xx_debugfs_root;
-
-static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status)
-{
- if (status)
- ag->debug.int_stats.total++;
- if (status & AG71XX_INT_TX_PS)
- ag->debug.int_stats.tx_ps++;
- if (status & AG71XX_INT_TX_UR)
- ag->debug.int_stats.tx_ur++;
- if (status & AG71XX_INT_TX_BE)
- ag->debug.int_stats.tx_be++;
- if (status & AG71XX_INT_RX_PR)
- ag->debug.int_stats.rx_pr++;
- if (status & AG71XX_INT_RX_OF)
- ag->debug.int_stats.rx_of++;
- if (status & AG71XX_INT_RX_BE)
- ag->debug.int_stats.rx_be++;
-}
-
-static ssize_t read_file_int_stats(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
-#define PR_INT_STAT(_label, _field) \
- len += snprintf(buf + len, sizeof(buf) - len, \
- "%20s: %10lu\n", _label, ag->debug.int_stats._field);
-
- struct ag71xx *ag = file->private_data;
- char buf[256];
- unsigned int len = 0;
-
- PR_INT_STAT("TX Packet Sent", tx_ps);
- PR_INT_STAT("TX Underrun", tx_ur);
- PR_INT_STAT("TX Bus Error", tx_be);
- PR_INT_STAT("RX Packet Received", rx_pr);
- PR_INT_STAT("RX Overflow", rx_of);
- PR_INT_STAT("RX Bus Error", rx_be);
- len += snprintf(buf + len, sizeof(buf) - len, "\n");
- PR_INT_STAT("Total", total);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-#undef PR_INT_STAT
-}
-
-static const struct file_operations ag71xx_fops_int_stats = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_int_stats,
- .owner = THIS_MODULE
-};
-
-void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx)
-{
- struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
-
- if (rx) {
- stats->rx_count++;
- stats->rx_packets += rx;
- if (rx <= AG71XX_NAPI_WEIGHT)
- stats->rx[rx]++;
- if (rx > stats->rx_packets_max)
- stats->rx_packets_max = rx;
- }
-
- if (tx) {
- stats->tx_count++;
- stats->tx_packets += tx;
- if (tx <= AG71XX_NAPI_WEIGHT)
- stats->tx[tx]++;
- if (tx > stats->tx_packets_max)
- stats->tx_packets_max = tx;
- }
-}
-
-static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ag71xx *ag = file->private_data;
- struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
- char *buf;
- unsigned int buflen;
- unsigned int len = 0;
- unsigned long rx_avg = 0;
- unsigned long tx_avg = 0;
- int ret;
- int i;
-
- buflen = 2048;
- buf = kmalloc(buflen, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- if (stats->rx_count)
- rx_avg = stats->rx_packets / stats->rx_count;
-
- if (stats->tx_count)
- tx_avg = stats->tx_packets / stats->tx_count;
-
- len += snprintf(buf + len, buflen - len, "%3s %10s %10s\n",
- "len", "rx", "tx");
-
- for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++)
- len += snprintf(buf + len, buflen - len,
- "%3d: %10lu %10lu\n",
- i, stats->rx[i], stats->tx[i]);
-
- len += snprintf(buf + len, buflen - len, "\n");
-
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "sum", stats->rx_count, stats->tx_count);
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "avg", rx_avg, tx_avg);
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "max", stats->rx_packets_max, stats->tx_packets_max);
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "pkt", stats->rx_packets, stats->tx_packets);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
- kfree(buf);
-
- return ret;
-}
-
-static const struct file_operations ag71xx_fops_napi_stats = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_napi_stats,
- .owner = THIS_MODULE
-};
-
-#define DESC_PRINT_LEN 64
-
-static ssize_t read_file_ring(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos,
- struct ag71xx *ag,
- struct ag71xx_ring *ring,
- unsigned desc_reg)
-{
- int ring_size = BIT(ring->order);
- int ring_mask = ring_size - 1;
- char *buf;
- unsigned int buflen;
- unsigned int len = 0;
- unsigned long flags;
- ssize_t ret;
- int curr;
- int dirty;
- u32 desc_hw;
- int i;
-
- buflen = (ring_size * DESC_PRINT_LEN);
- buf = kmalloc(buflen, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- len += snprintf(buf + len, buflen - len,
- "Idx ... %-8s %-8s %-8s %-8s .\n",
- "desc", "next", "data", "ctrl");
-
- spin_lock_irqsave(&ag->lock, flags);
-
- curr = (ring->curr & ring_mask);
- dirty = (ring->dirty & ring_mask);
- desc_hw = ag71xx_rr(ag, desc_reg);
- for (i = 0; i < ring_size; i++) {
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
- u32 desc_dma = ((u32) ring->descs_dma) + i * AG71XX_DESC_SIZE;
-
- len += snprintf(buf + len, buflen - len,
- "%3d %c%c%c %08x %08x %08x %08x %c\n",
- i,
- (i == curr) ? 'C' : ' ',
- (i == dirty) ? 'D' : ' ',
- (desc_hw == desc_dma) ? 'H' : ' ',
- desc_dma,
- desc->next,
- desc->data,
- desc->ctrl,
- (desc->ctrl & DESC_EMPTY) ? 'E' : '*');
- }
-
- spin_unlock_irqrestore(&ag->lock, flags);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
- kfree(buf);
-
- return ret;
-}
-
-static ssize_t read_file_tx_ring(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ag71xx *ag = file->private_data;
-
- return read_file_ring(file, user_buf, count, ppos, ag, &ag->tx_ring,
- AG71XX_REG_TX_DESC);
-}
-
-static const struct file_operations ag71xx_fops_tx_ring = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_tx_ring,
- .owner = THIS_MODULE
-};
-
-static ssize_t read_file_rx_ring(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ag71xx *ag = file->private_data;
-
- return read_file_ring(file, user_buf, count, ppos, ag, &ag->rx_ring,
- AG71XX_REG_RX_DESC);
-}
-
-static const struct file_operations ag71xx_fops_rx_ring = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_rx_ring,
- .owner = THIS_MODULE
-};
-
-void ag71xx_debugfs_exit(struct ag71xx *ag)
-{
- debugfs_remove_recursive(ag->debug.debugfs_dir);
-}
-
-int ag71xx_debugfs_init(struct ag71xx *ag)
-{
- struct device *dev = &ag->pdev->dev;
-
- ag->debug.debugfs_dir = debugfs_create_dir(dev_name(dev),
- ag71xx_debugfs_root);
- if (!ag->debug.debugfs_dir) {
- dev_err(dev, "unable to create debugfs directory\n");
- return -ENOENT;
- }
-
- debugfs_create_file("int_stats", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_int_stats);
- debugfs_create_file("napi_stats", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_napi_stats);
- debugfs_create_file("tx_ring", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_tx_ring);
- debugfs_create_file("rx_ring", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_rx_ring);
-
- return 0;
-}
-
-int ag71xx_debugfs_root_init(void)
-{
- if (ag71xx_debugfs_root)
- return -EBUSY;
-
- ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (!ag71xx_debugfs_root)
- return -ENOENT;
-
- return 0;
-}
-
-void ag71xx_debugfs_root_exit(void)
-{
- debugfs_remove(ag71xx_debugfs_root);
- ag71xx_debugfs_root = NULL;
-}
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include "ag71xx.h"
-
-static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev)
-{
- struct ag71xx *ag = netdev_priv(dev);
-
- return ag->msg_enable;
-}
-
-static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level)
-{
- struct ag71xx *ag = netdev_priv(dev);
-
- ag->msg_enable = msg_level;
-}
-
-static void ag71xx_ethtool_get_ringparam(struct net_device *dev,
- struct ethtool_ringparam *er)
-{
- struct ag71xx *ag = netdev_priv(dev);
-
- er->tx_max_pending = AG71XX_TX_RING_SIZE_MAX;
- er->rx_max_pending = AG71XX_RX_RING_SIZE_MAX;
- er->rx_mini_max_pending = 0;
- er->rx_jumbo_max_pending = 0;
-
- er->tx_pending = BIT(ag->tx_ring.order);
- er->rx_pending = BIT(ag->rx_ring.order);
- er->rx_mini_pending = 0;
- er->rx_jumbo_pending = 0;
-
- if (ag->tx_ring.desc_split)
- er->tx_pending /= AG71XX_TX_RING_DS_PER_PKT;
-}
-
-static int ag71xx_ethtool_set_ringparam(struct net_device *dev,
- struct ethtool_ringparam *er)
-{
- struct ag71xx *ag = netdev_priv(dev);
- unsigned tx_size;
- unsigned rx_size;
- int err = 0;
-
- if (er->rx_mini_pending != 0||
- er->rx_jumbo_pending != 0 ||
- er->rx_pending == 0 ||
- er->tx_pending == 0)
- return -EINVAL;
-
- tx_size = er->tx_pending < AG71XX_TX_RING_SIZE_MAX ?
- er->tx_pending : AG71XX_TX_RING_SIZE_MAX;
-
- rx_size = er->rx_pending < AG71XX_RX_RING_SIZE_MAX ?
- er->rx_pending : AG71XX_RX_RING_SIZE_MAX;
-
- if (netif_running(dev)) {
- err = dev->netdev_ops->ndo_stop(dev);
- if (err)
- return err;
- }
-
- if (ag->tx_ring.desc_split)
- tx_size *= AG71XX_TX_RING_DS_PER_PKT;
-
- ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
- ag->rx_ring.order = ag71xx_ring_size_order(rx_size);
-
- if (netif_running(dev))
- err = dev->netdev_ops->ndo_open(dev);
-
- return err;
-}
-
-static int ag71xx_ethtool_nway_reset(struct net_device *dev)
-{
- struct ag71xx *ag = netdev_priv(dev);
- struct phy_device *phydev = ag->phy_dev;
-
- if (!phydev)
- return -ENODEV;
-
- return genphy_restart_aneg(phydev);
-}
-
-struct ethtool_ops ag71xx_ethtool_ops = {
- .get_msglevel = ag71xx_ethtool_get_msglevel,
- .set_msglevel = ag71xx_ethtool_set_msglevel,
- .get_ringparam = ag71xx_ethtool_get_ringparam,
- .set_ringparam = ag71xx_ethtool_set_ringparam,
- .get_link_ksettings = phy_ethtool_get_link_ksettings,
- .set_link_ksettings = phy_ethtool_set_link_ksettings,
- .get_link = ethtool_op_get_link,
- .get_ts_info = ethtool_op_get_ts_info,
- .nway_reset = ag71xx_ethtool_nway_reset,
-};
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/sizes.h>
-#include <linux/of_address.h>
-#include "ag71xx.h"
-
-static void ag71xx_of_set(struct device_node *np, const char *prop,
- u32 *reg, u32 shift, u32 mask)
-{
- u32 val;
-
- if (of_property_read_u32(np, prop, &val))
- return;
-
- *reg &= ~(mask << shift);
- *reg |= ((val & mask) << shift);
-}
-
-static void ag71xx_of_bit(struct device_node *np, const char *prop,
- u32 *reg, u32 mask)
-{
- u32 val;
-
- if (of_property_read_u32(np, prop, &val))
- return;
-
- if (val)
- *reg |= mask;
- else
- *reg &= ~mask;
-}
-
-static void ag71xx_setup_gmac_933x(struct device_node *np, void __iomem *base)
-{
- u32 val = __raw_readl(base + AR933X_GMAC_REG_ETH_CFG);
-
- ag71xx_of_bit(np, "switch-phy-swap", &val, AR933X_ETH_CFG_SW_PHY_SWAP);
- ag71xx_of_bit(np, "switch-phy-addr-swap", &val,
- AR933X_ETH_CFG_SW_PHY_ADDR_SWAP);
-
- __raw_writel(val, base + AR933X_GMAC_REG_ETH_CFG);
-}
-
-static void ag71xx_setup_gmac_934x(struct device_node *np, void __iomem *base)
-{
- u32 val = __raw_readl(base + AR934X_GMAC_REG_ETH_CFG);
-
- ag71xx_of_bit(np, "rgmii-gmac0", &val, AR934X_ETH_CFG_RGMII_GMAC0);
- ag71xx_of_bit(np, "mii-gmac0", &val, AR934X_ETH_CFG_MII_GMAC0);
- ag71xx_of_bit(np, "mii-gmac0-slave", &val, AR934X_ETH_CFG_MII_GMAC0_SLAVE);
- ag71xx_of_bit(np, "gmii-gmac0", &val, AR934X_ETH_CFG_GMII_GMAC0);
- ag71xx_of_bit(np, "switch-phy-swap", &val, AR934X_ETH_CFG_SW_PHY_SWAP);
- ag71xx_of_bit(np, "switch-only-mode", &val,
- AR934X_ETH_CFG_SW_ONLY_MODE);
- ag71xx_of_set(np, "rxdv-delay", &val,
- AR934X_ETH_CFG_RDV_DELAY_SHIFT, 0x3);
- ag71xx_of_set(np, "rxd-delay", &val,
- AR934X_ETH_CFG_RXD_DELAY_SHIFT, 0x3);
- ag71xx_of_set(np, "txd-delay", &val,
- AR934X_ETH_CFG_TXD_DELAY_SHIFT, 0x3);
- ag71xx_of_set(np, "txen-delay", &val,
- AR934X_ETH_CFG_TXE_DELAY_SHIFT, 0x3);
-
- __raw_writel(val, base + AR934X_GMAC_REG_ETH_CFG);
-}
-
-static void ag71xx_setup_gmac_955x(struct device_node *np, void __iomem *base)
-{
- u32 val = __raw_readl(base + QCA955X_GMAC_REG_ETH_CFG);
-
- ag71xx_of_bit(np, "rgmii-enabled", &val, QCA955X_ETH_CFG_RGMII_EN);
- ag71xx_of_bit(np, "ge0-sgmii", &val, QCA955X_ETH_CFG_GE0_SGMII);
- ag71xx_of_set(np, "txen-delay", &val, QCA955X_ETH_CFG_TXE_DELAY_SHIFT, 0x3);
- ag71xx_of_set(np, "txd-delay", &val, QCA955X_ETH_CFG_TXD_DELAY_SHIFT, 0x3);
- ag71xx_of_set(np, "rxdv-delay", &val, QCA955X_ETH_CFG_RDV_DELAY_SHIFT, 0x3);
- ag71xx_of_set(np, "rxd-delay", &val, QCA955X_ETH_CFG_RXD_DELAY_SHIFT, 0x3);
-
- __raw_writel(val, base + QCA955X_GMAC_REG_ETH_CFG);
-}
-
-static void ag71xx_setup_gmac_956x(struct device_node *np, void __iomem *base)
-{
- u32 val = __raw_readl(base + QCA956X_GMAC_REG_ETH_CFG);
-
- ag71xx_of_bit(np, "switch-phy-swap", &val, QCA956X_ETH_CFG_SW_PHY_SWAP);
- ag71xx_of_bit(np, "switch-phy-addr-swap", &val,
- QCA956X_ETH_CFG_SW_PHY_ADDR_SWAP);
-
- __raw_writel(val, base + QCA956X_GMAC_REG_ETH_CFG);
-}
-
-int ag71xx_setup_gmac(struct device_node *np)
-{
- struct device_node *np_dev;
- void __iomem *base;
- int err = 0;
-
- np = of_get_child_by_name(np, "gmac-config");
- if (!np)
- return 0;
-
- np_dev = of_parse_phandle(np, "device", 0);
- if (!np_dev)
- goto out;
-
- base = of_iomap(np_dev, 0);
- if (!base) {
- pr_err("%pOF: can't map GMAC registers\n", np_dev);
- err = -ENOMEM;
- goto err_iomap;
- }
-
- if (of_device_is_compatible(np_dev, "qca,ar9330-gmac"))
- ag71xx_setup_gmac_933x(np, base);
- else if (of_device_is_compatible(np_dev, "qca,ar9340-gmac"))
- ag71xx_setup_gmac_934x(np, base);
- else if (of_device_is_compatible(np_dev, "qca,qca9550-gmac"))
- ag71xx_setup_gmac_955x(np, base);
- else if (of_device_is_compatible(np_dev, "qca,qca9560-gmac"))
- ag71xx_setup_gmac_956x(np, base);
-
- iounmap(base);
-
-err_iomap:
- of_node_put(np_dev);
-out:
- of_node_put(np);
- return err;
-}
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/sizes.h>
-#include <linux/of_net.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include "ag71xx.h"
-
-#define AG71XX_DEFAULT_MSG_ENABLE \
- (NETIF_MSG_DRV \
- | NETIF_MSG_PROBE \
- | NETIF_MSG_LINK \
- | NETIF_MSG_TIMER \
- | NETIF_MSG_IFDOWN \
- | NETIF_MSG_IFUP \
- | NETIF_MSG_RX_ERR \
- | NETIF_MSG_TX_ERR)
-
-static int ag71xx_msg_level = -1;
-
-module_param_named(msg_level, ag71xx_msg_level, int, 0);
-MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
-
-#define ETH_SWITCH_HEADER_LEN 2
-
-static int ag71xx_tx_packets(struct ag71xx *ag, bool flush);
-
-static inline unsigned int ag71xx_max_frame_len(unsigned int mtu)
-{
- return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;
-}
-
-static void ag71xx_dump_dma_regs(struct ag71xx *ag)
-{
- DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n",
- ag->dev->name,
- ag71xx_rr(ag, AG71XX_REG_TX_CTRL),
- ag71xx_rr(ag, AG71XX_REG_TX_DESC),
- ag71xx_rr(ag, AG71XX_REG_TX_STATUS));
-
- DBG("%s: dma_rx_ctrl=%08x, dma_rx_desc=%08x, dma_rx_status=%08x\n",
- ag->dev->name,
- ag71xx_rr(ag, AG71XX_REG_RX_CTRL),
- ag71xx_rr(ag, AG71XX_REG_RX_DESC),
- ag71xx_rr(ag, AG71XX_REG_RX_STATUS));
-}
-
-static void ag71xx_dump_regs(struct ag71xx *ag)
-{
- DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n",
- ag->dev->name,
- ag71xx_rr(ag, AG71XX_REG_MAC_CFG1),
- ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
- ag71xx_rr(ag, AG71XX_REG_MAC_IPG),
- ag71xx_rr(ag, AG71XX_REG_MAC_HDX),
- ag71xx_rr(ag, AG71XX_REG_MAC_MFL));
- DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n",
- ag->dev->name,
- ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
- ag71xx_rr(ag, AG71XX_REG_MAC_ADDR1),
- ag71xx_rr(ag, AG71XX_REG_MAC_ADDR2));
- DBG("%s: fifo_cfg0=%08x, fifo_cfg1=%08x, fifo_cfg2=%08x\n",
- ag->dev->name,
- ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
- ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
- ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
- DBG("%s: fifo_cfg3=%08x, fifo_cfg4=%08x, fifo_cfg5=%08x\n",
- ag->dev->name,
- ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
- ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
- ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
-}
-
-static inline void ag71xx_dump_intr(struct ag71xx *ag, char *label, u32 intr)
-{
- DBG("%s: %s intr=%08x %s%s%s%s%s%s\n",
- ag->dev->name, label, intr,
- (intr & AG71XX_INT_TX_PS) ? "TXPS " : "",
- (intr & AG71XX_INT_TX_UR) ? "TXUR " : "",
- (intr & AG71XX_INT_TX_BE) ? "TXBE " : "",
- (intr & AG71XX_INT_RX_PR) ? "RXPR " : "",
- (intr & AG71XX_INT_RX_OF) ? "RXOF " : "",
- (intr & AG71XX_INT_RX_BE) ? "RXBE " : "");
-}
-
-static void ag71xx_ring_tx_clean(struct ag71xx *ag)
-{
- struct ag71xx_ring *ring = &ag->tx_ring;
- struct net_device *dev = ag->dev;
- int ring_mask = BIT(ring->order) - 1;
- u32 bytes_compl = 0, pkts_compl = 0;
-
- while (ring->curr != ring->dirty) {
- struct ag71xx_desc *desc;
- u32 i = ring->dirty & ring_mask;
-
- desc = ag71xx_ring_desc(ring, i);
- if (!ag71xx_desc_empty(desc)) {
- desc->ctrl = 0;
- dev->stats.tx_errors++;
- }
-
- if (ring->buf[i].skb) {
- bytes_compl += ring->buf[i].len;
- pkts_compl++;
- dev_kfree_skb_any(ring->buf[i].skb);
- }
- ring->buf[i].skb = NULL;
- ring->dirty++;
- }
-
- /* flush descriptors */
- wmb();
-
- netdev_completed_queue(dev, pkts_compl, bytes_compl);
-}
-
-static void ag71xx_ring_tx_init(struct ag71xx *ag)
-{
- struct ag71xx_ring *ring = &ag->tx_ring;
- int ring_size = BIT(ring->order);
- int ring_mask = BIT(ring->order) - 1;
- int i;
-
- for (i = 0; i < ring_size; i++) {
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
-
- desc->next = (u32) (ring->descs_dma +
- AG71XX_DESC_SIZE * ((i + 1) & ring_mask));
-
- desc->ctrl = DESC_EMPTY;
- ring->buf[i].skb = NULL;
- }
-
- /* flush descriptors */
- wmb();
-
- ring->curr = 0;
- ring->dirty = 0;
- netdev_reset_queue(ag->dev);
-}
-
-static void ag71xx_ring_rx_clean(struct ag71xx *ag)
-{
- struct ag71xx_ring *ring = &ag->rx_ring;
- int ring_size = BIT(ring->order);
- int i;
-
- if (!ring->buf)
- return;
-
- for (i = 0; i < ring_size; i++)
- if (ring->buf[i].rx_buf) {
- dma_unmap_single(&ag->pdev->dev, ring->buf[i].dma_addr,
- ag->rx_buf_size, DMA_FROM_DEVICE);
- skb_free_frag(ring->buf[i].rx_buf);
- }
-}
-
-static int ag71xx_buffer_size(struct ag71xx *ag)
-{
- return ag->rx_buf_size +
- SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
-}
-
-static bool ag71xx_fill_rx_buf(struct ag71xx *ag, struct ag71xx_buf *buf,
- int offset,
- void *(*alloc)(unsigned int size))
-{
- struct ag71xx_ring *ring = &ag->rx_ring;
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, buf - &ring->buf[0]);
- void *data;
-
- data = alloc(ag71xx_buffer_size(ag));
- if (!data)
- return false;
-
- buf->rx_buf = data;
- buf->dma_addr = dma_map_single(&ag->pdev->dev, data, ag->rx_buf_size,
- DMA_FROM_DEVICE);
- desc->data = (u32) buf->dma_addr + offset;
- return true;
-}
-
-static int ag71xx_ring_rx_init(struct ag71xx *ag)
-{
- struct ag71xx_ring *ring = &ag->rx_ring;
- int ring_size = BIT(ring->order);
- int ring_mask = BIT(ring->order) - 1;
- unsigned int i;
- int ret;
-
- ret = 0;
- for (i = 0; i < ring_size; i++) {
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
-
- desc->next = (u32) (ring->descs_dma +
- AG71XX_DESC_SIZE * ((i + 1) & ring_mask));
-
- DBG("ag71xx: RX desc at %p, next is %08x\n",
- desc, desc->next);
- }
-
- for (i = 0; i < ring_size; i++) {
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
-
- if (!ag71xx_fill_rx_buf(ag, &ring->buf[i], ag->rx_buf_offset,
- netdev_alloc_frag)) {
- ret = -ENOMEM;
- break;
- }
-
- desc->ctrl = DESC_EMPTY;
- }
-
- /* flush descriptors */
- wmb();
-
- ring->curr = 0;
- ring->dirty = 0;
-
- return ret;
-}
-
-static int ag71xx_ring_rx_refill(struct ag71xx *ag)
-{
- struct ag71xx_ring *ring = &ag->rx_ring;
- int ring_mask = BIT(ring->order) - 1;
- unsigned int count;
- int offset = ag->rx_buf_offset;
-
- count = 0;
- for (; ring->curr - ring->dirty > 0; ring->dirty++) {
- struct ag71xx_desc *desc;
- unsigned int i;
-
- i = ring->dirty & ring_mask;
- desc = ag71xx_ring_desc(ring, i);
-
- if (!ring->buf[i].rx_buf &&
- !ag71xx_fill_rx_buf(ag, &ring->buf[i], offset,
- napi_alloc_frag))
- break;
-
- desc->ctrl = DESC_EMPTY;
- count++;
- }
-
- /* flush descriptors */
- wmb();
-
- DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count);
-
- return count;
-}
-
-static int ag71xx_rings_init(struct ag71xx *ag)
-{
- struct ag71xx_ring *tx = &ag->tx_ring;
- struct ag71xx_ring *rx = &ag->rx_ring;
- int ring_size = BIT(tx->order) + BIT(rx->order);
- int tx_size = BIT(tx->order);
-
- tx->buf = kzalloc(ring_size * sizeof(*tx->buf), GFP_KERNEL);
- if (!tx->buf)
- return -ENOMEM;
-
- tx->descs_cpu = dma_alloc_coherent(&ag->pdev->dev, ring_size * AG71XX_DESC_SIZE,
- &tx->descs_dma, GFP_KERNEL);
- if (!tx->descs_cpu) {
- kfree(tx->buf);
- tx->buf = NULL;
- return -ENOMEM;
- }
-
- rx->buf = &tx->buf[tx_size];
- rx->descs_cpu = ((void *)tx->descs_cpu) + tx_size * AG71XX_DESC_SIZE;
- rx->descs_dma = tx->descs_dma + tx_size * AG71XX_DESC_SIZE;
-
- ag71xx_ring_tx_init(ag);
- return ag71xx_ring_rx_init(ag);
-}
-
-static void ag71xx_rings_free(struct ag71xx *ag)
-{
- struct ag71xx_ring *tx = &ag->tx_ring;
- struct ag71xx_ring *rx = &ag->rx_ring;
- int ring_size = BIT(tx->order) + BIT(rx->order);
-
- if (tx->descs_cpu)
- dma_free_coherent(&ag->pdev->dev, ring_size * AG71XX_DESC_SIZE,
- tx->descs_cpu, tx->descs_dma);
-
- kfree(tx->buf);
-
- tx->descs_cpu = NULL;
- rx->descs_cpu = NULL;
- tx->buf = NULL;
- rx->buf = NULL;
-}
-
-static void ag71xx_rings_cleanup(struct ag71xx *ag)
-{
- ag71xx_ring_rx_clean(ag);
- ag71xx_ring_tx_clean(ag);
- ag71xx_rings_free(ag);
-
- netdev_reset_queue(ag->dev);
-}
-
-static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
-{
- switch (ag->speed) {
- case SPEED_1000:
- return "1000";
- case SPEED_100:
- return "100";
- case SPEED_10:
- return "10";
- }
-
- return "?";
-}
-
-static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
-{
- u32 t;
-
- t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16)
- | (((u32) mac[3]) << 8) | ((u32) mac[2]);
-
- ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t);
-
- t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16);
- ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
-}
-
-static void ag71xx_dma_reset(struct ag71xx *ag)
-{
- u32 val;
- int i;
-
- ag71xx_dump_dma_regs(ag);
-
- /* stop RX and TX */
- ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
- ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
-
- /*
- * give the hardware some time to really stop all rx/tx activity
- * clearing the descriptors too early causes random memory corruption
- */
- mdelay(1);
-
- /* clear descriptor addresses */
- ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->stop_desc_dma);
- ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->stop_desc_dma);
-
- /* clear pending RX/TX interrupts */
- for (i = 0; i < 256; i++) {
- ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
- ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
- }
-
- /* clear pending errors */
- ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
- ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
-
- val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
- if (val)
- pr_alert("%s: unable to clear DMA Rx status: %08x\n",
- ag->dev->name, val);
-
- val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
-
- /* mask out reserved bits */
- val &= ~0xff000000;
-
- if (val)
- pr_alert("%s: unable to clear DMA Tx status: %08x\n",
- ag->dev->name, val);
-
- ag71xx_dump_dma_regs(ag);
-}
-
-#define MAC_CFG1_INIT (MAC_CFG1_RXE | MAC_CFG1_TXE | \
- MAC_CFG1_SRX | MAC_CFG1_STX)
-
-#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
-
-#define FIFO_CFG4_INIT (FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \
- FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \
- FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \
- FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \
- FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \
- FIFO_CFG4_VT)
-
-#define FIFO_CFG5_INIT (FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \
- FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \
- FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \
- FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \
- FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \
- FIFO_CFG5_17 | FIFO_CFG5_SF)
-
-static void ag71xx_hw_stop(struct ag71xx *ag)
-{
- /* disable all interrupts and stop the rx/tx engine */
- ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0);
- ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
- ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
-}
-
-static void ag71xx_hw_setup(struct ag71xx *ag)
-{
- struct device_node *np = ag->pdev->dev.of_node;
- u32 init = MAC_CFG1_INIT;
-
- /* setup MAC configuration registers */
- if (of_property_read_bool(np, "flow-control"))
- init |= MAC_CFG1_TFC | MAC_CFG1_RFC;
- ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, init);
-
- ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
- MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
-
- /* setup max frame length to zero */
- ag71xx_wr(ag, AG71XX_REG_MAC_MFL, 0);
-
- /* setup FIFO configuration registers */
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, ag->fifodata[0]);
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, ag->fifodata[1]);
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
-}
-
-static void ag71xx_hw_init(struct ag71xx *ag)
-{
- ag71xx_hw_stop(ag);
-
- ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR);
- udelay(20);
-
- reset_control_assert(ag->mac_reset);
- if (ag->mdio_reset)
- reset_control_assert(ag->mdio_reset);
- msleep(100);
- reset_control_deassert(ag->mac_reset);
- if (ag->mdio_reset)
- reset_control_deassert(ag->mdio_reset);
- msleep(200);
-
- ag71xx_hw_setup(ag);
-
- ag71xx_dma_reset(ag);
-}
-
-static void ag71xx_fast_reset(struct ag71xx *ag)
-{
- struct net_device *dev = ag->dev;
- u32 rx_ds;
- u32 mii_reg;
-
- ag71xx_hw_stop(ag);
- wmb();
-
- mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG);
- rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC);
-
- ag71xx_tx_packets(ag, true);
-
- reset_control_assert(ag->mac_reset);
- udelay(10);
- reset_control_deassert(ag->mac_reset);
- udelay(10);
-
- ag71xx_dma_reset(ag);
- ag71xx_hw_setup(ag);
- ag->tx_ring.curr = 0;
- ag->tx_ring.dirty = 0;
- netdev_reset_queue(ag->dev);
-
- /* setup max frame length */
- ag71xx_wr(ag, AG71XX_REG_MAC_MFL,
- ag71xx_max_frame_len(ag->dev->mtu));
-
- ag71xx_wr(ag, AG71XX_REG_RX_DESC, rx_ds);
- ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
- ag71xx_wr(ag, AG71XX_REG_MII_CFG, mii_reg);
-
- ag71xx_hw_set_macaddr(ag, dev->dev_addr);
-}
-
-static void ag71xx_hw_start(struct ag71xx *ag)
-{
- /* start RX engine */
- ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
-
- /* enable interrupts */
- ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT);
-
- netif_wake_queue(ag->dev);
-}
-
-static void ath79_set_pllval(struct ag71xx *ag)
-{
- u32 pll_reg = ag->pllreg[1];
- u32 pll_val;
-
- if (!ag->pllregmap)
- return;
-
- switch (ag->speed) {
- case SPEED_10:
- pll_val = ag->plldata[2];
- break;
- case SPEED_100:
- pll_val = ag->plldata[1];
- break;
- case SPEED_1000:
- pll_val = ag->plldata[0];
- break;
- default:
- BUG();
- }
-
- if (pll_val)
- regmap_write(ag->pllregmap, pll_reg, pll_val);
-}
-
-static void ath79_set_pll(struct ag71xx *ag)
-{
- u32 pll_cfg = ag->pllreg[0];
- u32 pll_shift = ag->pllreg[2];
-
- if (!ag->pllregmap)
- return;
-
- regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 2 << pll_shift);
- udelay(100);
-
- ath79_set_pllval(ag);
-
- regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 3 << pll_shift);
- udelay(100);
-
- regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 0);
- udelay(100);
-}
-
-static void ag71xx_bit_set(void __iomem *reg, u32 bit)
-{
- u32 val;
-
- val = __raw_readl(reg) | bit;
- __raw_writel(val, reg);
- __raw_readl(reg);
-}
-
-static void ag71xx_bit_clear(void __iomem *reg, u32 bit)
-{
- u32 val;
-
- val = __raw_readl(reg) & ~bit;
- __raw_writel(val, reg);
- __raw_readl(reg);
-}
-
-static void ag71xx_sgmii_init_qca955x(struct device_node *np)
-{
- struct device_node *np_dev;
- void __iomem *gmac_base;
- u32 mr_an_status;
- u32 sgmii_status;
- u8 tries = 0;
- int err = 0;
-
- np = of_get_child_by_name(np, "gmac-config");
- if (!np)
- return;
-
- np_dev = of_parse_phandle(np, "device", 0);
- if (!np_dev)
- goto out;
-
- gmac_base = of_iomap(np_dev, 0);
- if (!gmac_base) {
- pr_err("%pOF: can't map GMAC registers\n", np_dev);
- err = -ENOMEM;
- goto err_iomap;
- }
-
- mr_an_status = __raw_readl(gmac_base + QCA955X_GMAC_REG_MR_AN_STATUS);
- if (!(mr_an_status & QCA955X_MR_AN_STATUS_AN_ABILITY))
- goto sgmii_out;
-
- /* SGMII reset sequence */
- __raw_writel(QCA955X_SGMII_RESET_RX_CLK_N_RESET,
- gmac_base + QCA955X_GMAC_REG_SGMII_RESET);
- __raw_readl(gmac_base + QCA955X_GMAC_REG_SGMII_RESET);
- udelay(10);
-
- ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
- QCA955X_SGMII_RESET_HW_RX_125M_N);
- udelay(10);
-
- ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
- QCA955X_SGMII_RESET_RX_125M_N);
- udelay(10);
-
- ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
- QCA955X_SGMII_RESET_TX_125M_N);
- udelay(10);
-
- ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
- QCA955X_SGMII_RESET_RX_CLK_N);
- udelay(10);
-
- ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET,
- QCA955X_SGMII_RESET_TX_CLK_N);
- udelay(10);
-
- /*
- * The following is what QCA has to say about what happens here:
- *
- * Across resets SGMII link status goes to weird state.
- * If SGMII_DEBUG register reads other than 0x1f or 0x10,
- * we are for sure in a bad state.
- *
- * Issue a PHY reset in MR_AN_CONTROL to keep going.
- */
- do {
- ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_MR_AN_CONTROL,
- QCA955X_MR_AN_CONTROL_PHY_RESET |
- QCA955X_MR_AN_CONTROL_AN_ENABLE);
- udelay(200);
- ag71xx_bit_clear(gmac_base + QCA955X_GMAC_REG_MR_AN_CONTROL,
- QCA955X_MR_AN_CONTROL_PHY_RESET);
- mdelay(300);
- sgmii_status = __raw_readl(gmac_base + QCA955X_GMAC_REG_SGMII_DEBUG) &
- QCA955X_SGMII_DEBUG_TX_STATE_MASK;
-
- if (tries++ >= 20) {
- pr_err("ag71xx: max retries for SGMII fixup exceeded\n");
- break;
- }
- } while (!(sgmii_status == 0xf || sgmii_status == 0x10));
-
-sgmii_out:
- iounmap(gmac_base);
-err_iomap:
- of_node_put(np_dev);
-out:
- of_node_put(np);
-}
-
-static void ath79_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if)
-{
- u32 t;
-
- t = __raw_readl(ag->mii_base);
- t &= ~(AR71XX_MII_CTRL_IF_MASK);
- t |= (mii_if & AR71XX_MII_CTRL_IF_MASK);
- __raw_writel(t, ag->mii_base);
-}
-
-static void ath79_mii0_ctrl_set_if(struct ag71xx *ag)
-{
- unsigned int mii_if;
-
- switch (ag->phy_if_mode) {
- case PHY_INTERFACE_MODE_MII:
- mii_if = AR71XX_MII0_CTRL_IF_MII;
- break;
- case PHY_INTERFACE_MODE_GMII:
- mii_if = AR71XX_MII0_CTRL_IF_GMII;
- break;
- case PHY_INTERFACE_MODE_RGMII:
- case PHY_INTERFACE_MODE_RGMII_ID:
- mii_if = AR71XX_MII0_CTRL_IF_RGMII;
- break;
- case PHY_INTERFACE_MODE_RMII:
- mii_if = AR71XX_MII0_CTRL_IF_RMII;
- break;
- default:
- WARN(1, "Impossible PHY mode defined.\n");
- return;
- }
-
- ath79_mii_ctrl_set_if(ag, mii_if);
-}
-
-static void ath79_mii1_ctrl_set_if(struct ag71xx *ag)
-{
- unsigned int mii_if;
-
- switch (ag->phy_if_mode) {
- case PHY_INTERFACE_MODE_RMII:
- mii_if = AR71XX_MII1_CTRL_IF_RMII;
- break;
- case PHY_INTERFACE_MODE_RGMII:
- case PHY_INTERFACE_MODE_RGMII_ID:
- mii_if = AR71XX_MII1_CTRL_IF_RGMII;
- break;
- default:
- WARN(1, "Impossible PHY mode defined.\n");
- return;
- }
-
- ath79_mii_ctrl_set_if(ag, mii_if);
-}
-
-static void ath79_mii_ctrl_set_speed(struct ag71xx *ag)
-{
- unsigned int mii_speed;
- u32 t;
-
- if (!ag->mii_base)
- return;
-
- switch (ag->speed) {
- case SPEED_10:
- mii_speed = AR71XX_MII_CTRL_SPEED_10;
- break;
- case SPEED_100:
- mii_speed = AR71XX_MII_CTRL_SPEED_100;
- break;
- case SPEED_1000:
- mii_speed = AR71XX_MII_CTRL_SPEED_1000;
- break;
- default:
- BUG();
- }
-
- t = __raw_readl(ag->mii_base);
- t &= ~(AR71XX_MII_CTRL_SPEED_MASK << AR71XX_MII_CTRL_SPEED_SHIFT);
- t |= mii_speed << AR71XX_MII_CTRL_SPEED_SHIFT;
- __raw_writel(t, ag->mii_base);
-}
-
-static void
-__ag71xx_link_adjust(struct ag71xx *ag, bool update)
-{
- struct device_node *np = ag->pdev->dev.of_node;
- u32 cfg2;
- u32 ifctl;
- u32 fifo5;
-
- if (!ag->link && update) {
- ag71xx_hw_stop(ag);
- netif_carrier_off(ag->dev);
- if (netif_msg_link(ag))
- pr_info("%s: link down\n", ag->dev->name);
- return;
- }
-
- if (!of_device_is_compatible(np, "qca,ar9130-eth") &&
- !of_device_is_compatible(np, "qca,ar7100-eth"))
- ag71xx_fast_reset(ag);
-
- cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
- cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
- cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
-
- ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
- ifctl &= ~(MAC_IFCTL_SPEED);
-
- fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
- fifo5 &= ~FIFO_CFG5_BM;
-
- switch (ag->speed) {
- case SPEED_1000:
- cfg2 |= MAC_CFG2_IF_1000;
- fifo5 |= FIFO_CFG5_BM;
- break;
- case SPEED_100:
- cfg2 |= MAC_CFG2_IF_10_100;
- ifctl |= MAC_IFCTL_SPEED;
- break;
- case SPEED_10:
- cfg2 |= MAC_CFG2_IF_10_100;
- break;
- default:
- BUG();
- return;
- }
-
- if (ag->tx_ring.desc_split) {
- ag->fifodata[2] &= 0xffff;
- ag->fifodata[2] |= ((2048 - ag->tx_ring.desc_split) / 4) << 16;
- }
-
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, ag->fifodata[2]);
-
- if (update) {
- if (of_device_is_compatible(np, "qca,ar7100-eth") ||
- of_device_is_compatible(np, "qca,ar9130-eth")) {
- ath79_set_pll(ag);
- ath79_mii_ctrl_set_speed(ag);
- } else if (of_device_is_compatible(np, "qca,ar7242-eth") ||
- of_device_is_compatible(np, "qca,ar9340-eth") ||
- of_device_is_compatible(np, "qca,qca9550-eth") ||
- of_device_is_compatible(np, "qca,qca9560-eth")) {
- ath79_set_pllval(ag);
- if (of_property_read_bool(np, "qca955x-sgmii-fixup"))
- ag71xx_sgmii_init_qca955x(np);
- }
- }
-
- ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
- ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
- ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
-
- if (of_device_is_compatible(np, "qca,qca9530-eth") ||
- of_device_is_compatible(np, "qca,qca9560-eth")) {
- /*
- * The rx ring buffer can stall on small packets on QCA953x and
- * QCA956x. Disabling the inline checksum engine fixes the stall.
- * The wr, rr functions cannot be used since this hidden register
- * is outside of the normal ag71xx register block.
- */
- void __iomem *dam = ioremap_nocache(0xb90001bc, 0x4);
- if (dam) {
- __raw_writel(__raw_readl(dam) & ~BIT(27), dam);
- (void)__raw_readl(dam);
- iounmap(dam);
- }
- }
-
- ag71xx_hw_start(ag);
-
- netif_carrier_on(ag->dev);
- if (update && netif_msg_link(ag))
- pr_info("%s: link up (%sMbps/%s duplex)\n",
- ag->dev->name,
- ag71xx_speed_str(ag),
- (DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
-
- ag71xx_dump_regs(ag);
-}
-
-void ag71xx_link_adjust(struct ag71xx *ag)
-{
- __ag71xx_link_adjust(ag, true);
-}
-
-static int ag71xx_hw_enable(struct ag71xx *ag)
-{
- int ret;
-
- ret = ag71xx_rings_init(ag);
- if (ret)
- return ret;
-
- napi_enable(&ag->napi);
- ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
- ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma);
- netif_start_queue(ag->dev);
-
- return 0;
-}
-
-static void ag71xx_hw_disable(struct ag71xx *ag)
-{
- netif_stop_queue(ag->dev);
-
- ag71xx_hw_stop(ag);
- ag71xx_dma_reset(ag);
-
- napi_disable(&ag->napi);
- del_timer_sync(&ag->oom_timer);
-
- ag71xx_rings_cleanup(ag);
-}
-
-static int ag71xx_open(struct net_device *dev)
-{
- struct ag71xx *ag = netdev_priv(dev);
- unsigned int max_frame_len;
- int ret;
-
- netif_carrier_off(dev);
- max_frame_len = ag71xx_max_frame_len(dev->mtu);
- ag->rx_buf_size = SKB_DATA_ALIGN(max_frame_len + NET_SKB_PAD + NET_IP_ALIGN);
-
- /* setup max frame length */
- ag71xx_wr(ag, AG71XX_REG_MAC_MFL, max_frame_len);
- ag71xx_hw_set_macaddr(ag, dev->dev_addr);
-
- ret = ag71xx_hw_enable(ag);
- if (ret)
- goto err;
-
- phy_start(ag->phy_dev);
-
- return 0;
-
-err:
- ag71xx_rings_cleanup(ag);
- return ret;
-}
-
-static int ag71xx_stop(struct net_device *dev)
-{
- unsigned long flags;
- struct ag71xx *ag = netdev_priv(dev);
-
- netif_carrier_off(dev);
- phy_stop(ag->phy_dev);
-
- spin_lock_irqsave(&ag->lock, flags);
- if (ag->link) {
- ag->link = 0;
- ag71xx_link_adjust(ag);
- }
- spin_unlock_irqrestore(&ag->lock, flags);
-
- ag71xx_hw_disable(ag);
-
- return 0;
-}
-
-static int ag71xx_fill_dma_desc(struct ag71xx_ring *ring, u32 addr, int len)
-{
- int i;
- struct ag71xx_desc *desc;
- int ring_mask = BIT(ring->order) - 1;
- int ndesc = 0;
- int split = ring->desc_split;
-
- if (!split)
- split = len;
-
- while (len > 0) {
- unsigned int cur_len = len;
-
- i = (ring->curr + ndesc) & ring_mask;
- desc = ag71xx_ring_desc(ring, i);
-
- if (!ag71xx_desc_empty(desc))
- return -1;
-
- if (cur_len > split) {
- cur_len = split;
-
- /*
- * TX will hang if DMA transfers <= 4 bytes,
- * make sure next segment is more than 4 bytes long.
- */
- if (len <= split + 4)
- cur_len -= 4;
- }
-
- desc->data = addr;
- addr += cur_len;
- len -= cur_len;
-
- if (len > 0)
- cur_len |= DESC_MORE;
-
- /* prevent early tx attempt of this descriptor */
- if (!ndesc)
- cur_len |= DESC_EMPTY;
-
- desc->ctrl = cur_len;
- ndesc++;
- }
-
- return ndesc;
-}
-
-static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ag71xx *ag = netdev_priv(dev);
- struct ag71xx_ring *ring = &ag->tx_ring;
- int ring_mask = BIT(ring->order) - 1;
- int ring_size = BIT(ring->order);
- struct ag71xx_desc *desc;
- dma_addr_t dma_addr;
- int i, n, ring_min;
-
- if (skb->len <= 4) {
- DBG("%s: packet len is too small\n", ag->dev->name);
- goto err_drop;
- }
-
- dma_addr = dma_map_single(&ag->pdev->dev, skb->data, skb->len,
- DMA_TO_DEVICE);
-
- i = ring->curr & ring_mask;
- desc = ag71xx_ring_desc(ring, i);
-
- /* setup descriptor fields */
- n = ag71xx_fill_dma_desc(ring, (u32) dma_addr, skb->len & ag->desc_pktlen_mask);
- if (n < 0)
- goto err_drop_unmap;
-
- i = (ring->curr + n - 1) & ring_mask;
- ring->buf[i].len = skb->len;
- ring->buf[i].skb = skb;
-
- netdev_sent_queue(dev, skb->len);
-
- skb_tx_timestamp(skb);
-
- desc->ctrl &= ~DESC_EMPTY;
- ring->curr += n;
-
- /* flush descriptor */
- wmb();
-
- ring_min = 2;
- if (ring->desc_split)
- ring_min *= AG71XX_TX_RING_DS_PER_PKT;
-
- if (ring->curr - ring->dirty >= ring_size - ring_min) {
- DBG("%s: tx queue full\n", dev->name);
- netif_stop_queue(dev);
- }
-
- DBG("%s: packet injected into TX queue\n", ag->dev->name);
-
- /* enable TX engine */
- ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);
-
- return NETDEV_TX_OK;
-
-err_drop_unmap:
- dma_unmap_single(&ag->pdev->dev, dma_addr, skb->len, DMA_TO_DEVICE);
-
-err_drop:
- dev->stats.tx_dropped++;
-
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
-}
-
-static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- struct ag71xx *ag = netdev_priv(dev);
-
-
- switch (cmd) {
- case SIOCSIFHWADDR:
- if (copy_from_user
- (dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
- return -EFAULT;
- return 0;
-
- case SIOCGIFHWADDR:
- if (copy_to_user
- (ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
- return -EFAULT;
- return 0;
-
- case SIOCGMIIPHY:
- case SIOCGMIIREG:
- case SIOCSMIIREG:
- if (ag->phy_dev == NULL)
- break;
-
- return phy_mii_ioctl(ag->phy_dev, ifr, cmd);
-
- default:
- break;
- }
-
- return -EOPNOTSUPP;
-}
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
-static void ag71xx_oom_timer_handler(unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct ag71xx *ag = netdev_priv(dev);
-#else
-static void ag71xx_oom_timer_handler(struct timer_list *t)
-{
- struct ag71xx *ag = from_timer(ag, t, oom_timer);
-#endif
-
- napi_schedule(&ag->napi);
-}
-
-static void ag71xx_tx_timeout(struct net_device *dev)
-{
- struct ag71xx *ag = netdev_priv(dev);
-
- if (netif_msg_tx_err(ag))
- pr_info("%s: tx timeout\n", ag->dev->name);
-
- schedule_delayed_work(&ag->restart_work, 1);
-}
-
-static void ag71xx_restart_work_func(struct work_struct *work)
-{
- struct ag71xx *ag = container_of(work, struct ag71xx, restart_work.work);
-
- rtnl_lock();
- ag71xx_hw_disable(ag);
- ag71xx_hw_enable(ag);
- if (ag->link)
- __ag71xx_link_adjust(ag, false);
- rtnl_unlock();
-}
-
-static bool ag71xx_check_dma_stuck(struct ag71xx *ag)
-{
- unsigned long timestamp;
- u32 rx_sm, tx_sm, rx_fd;
-
- timestamp = netdev_get_tx_queue(ag->dev, 0)->trans_start;
- if (likely(time_before(jiffies, timestamp + HZ/10)))
- return false;
-
- if (!netif_carrier_ok(ag->dev))
- return false;
-
- rx_sm = ag71xx_rr(ag, AG71XX_REG_RX_SM);
- if ((rx_sm & 0x7) == 0x3 && ((rx_sm >> 4) & 0x7) == 0x6)
- return true;
-
- tx_sm = ag71xx_rr(ag, AG71XX_REG_TX_SM);
- rx_fd = ag71xx_rr(ag, AG71XX_REG_FIFO_DEPTH);
- if (((tx_sm >> 4) & 0x7) == 0 && ((rx_sm & 0x7) == 0) &&
- ((rx_sm >> 4) & 0x7) == 0 && rx_fd == 0)
- return true;
-
- return false;
-}
-
-static int ag71xx_tx_packets(struct ag71xx *ag, bool flush)
-{
- struct ag71xx_ring *ring = &ag->tx_ring;
- bool dma_stuck = false;
- int ring_mask = BIT(ring->order) - 1;
- int ring_size = BIT(ring->order);
- int sent = 0;
- int bytes_compl = 0;
- int n = 0;
-
- DBG("%s: processing TX ring\n", ag->dev->name);
-
- while (ring->dirty + n != ring->curr) {
- unsigned int i = (ring->dirty + n) & ring_mask;
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
- struct sk_buff *skb = ring->buf[i].skb;
-
- if (!flush && !ag71xx_desc_empty(desc)) {
- if (ag->tx_hang_workaround &&
- ag71xx_check_dma_stuck(ag)) {
- schedule_delayed_work(&ag->restart_work, HZ / 2);
- dma_stuck = true;
- }
- break;
- }
-
- if (flush)
- desc->ctrl |= DESC_EMPTY;
-
- n++;
- if (!skb)
- continue;
-
- dev_kfree_skb_any(skb);
- ring->buf[i].skb = NULL;
-
- bytes_compl += ring->buf[i].len;
-
- sent++;
- ring->dirty += n;
-
- while (n > 0) {
- ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
- n--;
- }
- }
-
- DBG("%s: %d packets sent out\n", ag->dev->name, sent);
-
- if (!sent)
- return 0;
-
- ag->dev->stats.tx_bytes += bytes_compl;
- ag->dev->stats.tx_packets += sent;
-
- netdev_completed_queue(ag->dev, sent, bytes_compl);
- if ((ring->curr - ring->dirty) < (ring_size * 3) / 4)
- netif_wake_queue(ag->dev);
-
- if (!dma_stuck)
- cancel_delayed_work(&ag->restart_work);
-
- return sent;
-}
-
-static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
-{
- struct net_device *dev = ag->dev;
- struct ag71xx_ring *ring = &ag->rx_ring;
- unsigned int pktlen_mask = ag->desc_pktlen_mask;
- unsigned int offset = ag->rx_buf_offset;
- int ring_mask = BIT(ring->order) - 1;
- int ring_size = BIT(ring->order);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
- struct list_head rx_list;
- struct sk_buff *next;
-#else
- struct sk_buff_head queue;
-#endif
- struct sk_buff *skb;
- int done = 0;
-
- DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
- dev->name, limit, ring->curr, ring->dirty);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
- INIT_LIST_HEAD(&rx_list);
-#else
- skb_queue_head_init(&queue);
-#endif
-
- while (done < limit) {
- unsigned int i = ring->curr & ring_mask;
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
- int pktlen;
- int err = 0;
-
- if (ag71xx_desc_empty(desc))
- break;
-
- if ((ring->dirty + ring_size) == ring->curr) {
- ag71xx_assert(0);
- break;
- }
-
- ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
-
- pktlen = desc->ctrl & pktlen_mask;
- pktlen -= ETH_FCS_LEN;
-
- dma_unmap_single(&ag->pdev->dev, ring->buf[i].dma_addr,
- ag->rx_buf_size, DMA_FROM_DEVICE);
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pktlen;
-
- skb = build_skb(ring->buf[i].rx_buf, ag71xx_buffer_size(ag));
- if (!skb) {
- skb_free_frag(ring->buf[i].rx_buf);
- goto next;
- }
-
- skb_reserve(skb, offset);
- skb_put(skb, pktlen);
-
- if (err) {
- dev->stats.rx_dropped++;
- kfree_skb(skb);
- } else {
- skb->dev = dev;
- skb->ip_summed = CHECKSUM_NONE;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
- list_add_tail(&skb->list, &rx_list);
-#else
- __skb_queue_tail(&queue, skb);
-#endif
- }
-
-next:
- ring->buf[i].rx_buf = NULL;
- done++;
-
- ring->curr++;
- }
-
- ag71xx_ring_rx_refill(ag);
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
- list_for_each_entry_safe(skb, next, &rx_list, list)
- skb->protocol = eth_type_trans(skb, dev);
- netif_receive_skb_list(&rx_list);
-#else
- while ((skb = __skb_dequeue(&queue)) != NULL) {
- skb->protocol = eth_type_trans(skb, dev);
- netif_receive_skb(skb);
- }
-#endif
-
- DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
- dev->name, ring->curr, ring->dirty, done);
-
- return done;
-}
-
-static int ag71xx_poll(struct napi_struct *napi, int limit)
-{
- struct ag71xx *ag = container_of(napi, struct ag71xx, napi);
- struct net_device *dev = ag->dev;
- struct ag71xx_ring *rx_ring = &ag->rx_ring;
- int rx_ring_size = BIT(rx_ring->order);
- unsigned long flags;
- u32 status;
- int tx_done;
- int rx_done;
-
- tx_done = ag71xx_tx_packets(ag, false);
-
- DBG("%s: processing RX ring\n", dev->name);
- rx_done = ag71xx_rx_packets(ag, limit);
-
- ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done);
-
- if (rx_ring->buf[rx_ring->dirty % rx_ring_size].rx_buf == NULL)
- goto oom;
-
- status = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
- if (unlikely(status & RX_STATUS_OF)) {
- ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF);
- dev->stats.rx_fifo_errors++;
-
- /* restart RX */
- ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
- }
-
- if (rx_done < limit) {
- if (status & RX_STATUS_PR)
- goto more;
-
- status = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
- if (status & TX_STATUS_PS)
- goto more;
-
- DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n",
- dev->name, rx_done, tx_done, limit);
-
- napi_complete(napi);
-
- /* enable interrupts */
- spin_lock_irqsave(&ag->lock, flags);
- ag71xx_int_enable(ag, AG71XX_INT_POLL);
- spin_unlock_irqrestore(&ag->lock, flags);
- return rx_done;
- }
-
-more:
- DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n",
- dev->name, rx_done, tx_done, limit);
- return limit;
-
-oom:
- if (netif_msg_rx_err(ag))
- pr_info("%s: out of memory\n", dev->name);
-
- mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL);
- napi_complete(napi);
- return 0;
-}
-
-static irqreturn_t ag71xx_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct ag71xx *ag = netdev_priv(dev);
- u32 status;
-
- status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS);
- ag71xx_dump_intr(ag, "raw", status);
-
- if (unlikely(!status))
- return IRQ_NONE;
-
- if (unlikely(status & AG71XX_INT_ERR)) {
- if (status & AG71XX_INT_TX_BE) {
- ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE);
- dev_err(&dev->dev, "TX BUS error\n");
- }
- if (status & AG71XX_INT_RX_BE) {
- ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE);
- dev_err(&dev->dev, "RX BUS error\n");
- }
- }
-
- if (likely(status & AG71XX_INT_POLL)) {
- ag71xx_int_disable(ag, AG71XX_INT_POLL);
- DBG("%s: enable polling mode\n", dev->name);
- napi_schedule(&ag->napi);
- }
-
- ag71xx_debugfs_update_int_stats(ag, status);
-
- return IRQ_HANDLED;
-}
-
-static int ag71xx_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct ag71xx *ag = netdev_priv(dev);
-
- dev->mtu = new_mtu;
- ag71xx_wr(ag, AG71XX_REG_MAC_MFL,
- ag71xx_max_frame_len(dev->mtu));
-
- return 0;
-}
-
-static const struct net_device_ops ag71xx_netdev_ops = {
- .ndo_open = ag71xx_open,
- .ndo_stop = ag71xx_stop,
- .ndo_start_xmit = ag71xx_hard_start_xmit,
- .ndo_do_ioctl = ag71xx_do_ioctl,
- .ndo_tx_timeout = ag71xx_tx_timeout,
- .ndo_change_mtu = ag71xx_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static int ag71xx_probe(struct platform_device *pdev)
-{
- struct device_node *np = pdev->dev.of_node;
- struct net_device *dev;
- struct resource *res;
- struct ag71xx *ag;
- const void *mac_addr;
- u32 max_frame_len;
- int tx_size, err;
-
- if (!np)
- return -ENODEV;
-
- dev = devm_alloc_etherdev(&pdev->dev, sizeof(*ag));
- if (!dev)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EINVAL;
-
- err = ag71xx_setup_gmac(np);
- if (err)
- return err;
-
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- ag = netdev_priv(dev);
- ag->pdev = pdev;
- ag->dev = dev;
- ag->msg_enable = netif_msg_init(ag71xx_msg_level,
- AG71XX_DEFAULT_MSG_ENABLE);
- spin_lock_init(&ag->lock);
-
- ag->mac_reset = devm_reset_control_get_exclusive(&pdev->dev, "mac");
- if (IS_ERR(ag->mac_reset)) {
- dev_err(&pdev->dev, "missing mac reset\n");
- return PTR_ERR(ag->mac_reset);
- }
-
- ag->mdio_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "mdio");
-
- if (of_property_read_u32_array(np, "fifo-data", ag->fifodata, 3)) {
- if (of_device_is_compatible(np, "qca,ar9130-eth") ||
- of_device_is_compatible(np, "qca,ar7100-eth")) {
- ag->fifodata[0] = 0x0fff0000;
- ag->fifodata[1] = 0x00001fff;
- } else {
- ag->fifodata[0] = 0x0010ffff;
- ag->fifodata[1] = 0x015500aa;
- ag->fifodata[2] = 0x01f00140;
- }
- if (of_device_is_compatible(np, "qca,ar9130-eth"))
- ag->fifodata[2] = 0x00780fff;
- else if (of_device_is_compatible(np, "qca,ar7100-eth"))
- ag->fifodata[2] = 0x008001ff;
- }
-
- if (of_property_read_u32_array(np, "pll-data", ag->plldata, 3))
- dev_dbg(&pdev->dev, "failed to read pll-data property\n");
-
- if (of_property_read_u32_array(np, "pll-reg", ag->pllreg, 3))
- dev_dbg(&pdev->dev, "failed to read pll-reg property\n");
-
- ag->pllregmap = syscon_regmap_lookup_by_phandle(np, "pll-handle");
- if (IS_ERR(ag->pllregmap)) {
- dev_dbg(&pdev->dev, "failed to read pll-handle property\n");
- ag->pllregmap = NULL;
- }
-
- ag->mac_base = devm_ioremap_nocache(&pdev->dev, res->start,
- res->end - res->start + 1);
- if (!ag->mac_base)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (res) {
- ag->mii_base = devm_ioremap_nocache(&pdev->dev, res->start,
- res->end - res->start + 1);
- if (!ag->mii_base)
- return -ENOMEM;
- }
-
- dev->irq = platform_get_irq(pdev, 0);
- err = devm_request_irq(&pdev->dev, dev->irq, ag71xx_interrupt,
- 0x0, dev_name(&pdev->dev), dev);
- if (err) {
- dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
- return err;
- }
-
- dev->netdev_ops = &ag71xx_netdev_ops;
- dev->ethtool_ops = &ag71xx_ethtool_ops;
-
- INIT_DELAYED_WORK(&ag->restart_work, ag71xx_restart_work_func);
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
- init_timer(&ag->oom_timer);
- ag->oom_timer.data = (unsigned long) dev;
- ag->oom_timer.function = ag71xx_oom_timer_handler;
-#else
- timer_setup(&ag->oom_timer, ag71xx_oom_timer_handler, 0);
-#endif
-
- tx_size = AG71XX_TX_RING_SIZE_DEFAULT;
- ag->rx_ring.order = ag71xx_ring_size_order(AG71XX_RX_RING_SIZE_DEFAULT);
-
- if (of_device_is_compatible(np, "qca,ar9340-eth") ||
- of_device_is_compatible(np, "qca,qca9530-eth") ||
- of_device_is_compatible(np, "qca,qca9550-eth") ||
- of_device_is_compatible(np, "qca,qca9560-eth"))
- ag->desc_pktlen_mask = SZ_16K - 1;
- else
- ag->desc_pktlen_mask = SZ_4K - 1;
-
- if (ag->desc_pktlen_mask == SZ_16K - 1 &&
- !of_device_is_compatible(np, "qca,qca9550-eth") &&
- !of_device_is_compatible(np, "qca,qca9560-eth"))
- max_frame_len = ag->desc_pktlen_mask;
- else
- max_frame_len = 1540;
-
- dev->min_mtu = 68;
- dev->max_mtu = max_frame_len - ag71xx_max_frame_len(0);
-
- if (of_device_is_compatible(np, "qca,ar7240-eth") ||
- of_device_is_compatible(np, "qca,ar7241-eth") ||
- of_device_is_compatible(np, "qca,ar7242-eth") ||
- of_device_is_compatible(np, "qca,ar9330-eth") ||
- of_device_is_compatible(np, "qca,ar9340-eth") ||
- of_device_is_compatible(np, "qca,qca9530-eth") ||
- of_device_is_compatible(np, "qca,qca9550-eth") ||
- of_device_is_compatible(np, "qca,qca9560-eth"))
- ag->tx_hang_workaround = 1;
-
- ag->rx_buf_offset = NET_SKB_PAD;
- if (!of_device_is_compatible(np, "qca,ar7100-eth") &&
- !of_device_is_compatible(np, "qca,ar9130-eth"))
- ag->rx_buf_offset += NET_IP_ALIGN;
-
- if (of_device_is_compatible(np, "qca,ar7100-eth")) {
- ag->tx_ring.desc_split = AG71XX_TX_RING_SPLIT;
- tx_size *= AG71XX_TX_RING_DS_PER_PKT;
- }
- ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
-
- ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
- sizeof(struct ag71xx_desc),
- &ag->stop_desc_dma, GFP_KERNEL);
- if (!ag->stop_desc)
- return -ENOMEM;
-
- ag->stop_desc->data = 0;
- ag->stop_desc->ctrl = 0;
- ag->stop_desc->next = (u32) ag->stop_desc_dma;
-
- mac_addr = of_get_mac_address(np);
- if (mac_addr)
- memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
- if (!mac_addr || !is_valid_ether_addr(dev->dev_addr)) {
- dev_err(&pdev->dev, "invalid MAC address, using random address\n");
- eth_random_addr(dev->dev_addr);
- }
-
- ag->phy_if_mode = of_get_phy_mode(np);
- if (ag->phy_if_mode < 0) {
- dev_err(&pdev->dev, "missing phy-mode property in DT\n");
- return ag->phy_if_mode;
- }
-
- if (of_property_read_u32(np, "qca,mac-idx", &ag->mac_idx))
- ag->mac_idx = -1;
- if (ag->mii_base)
- switch (ag->mac_idx) {
- case 0:
- ath79_mii0_ctrl_set_if(ag);
- break;
- case 1:
- ath79_mii1_ctrl_set_if(ag);
- break;
- default:
- break;
- }
-
- netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
-
- ag71xx_dump_regs(ag);
-
- ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);
-
- ag71xx_hw_init(ag);
-
- ag71xx_dump_regs(ag);
-
- /*
- * populate current node to register mdio-bus as a subdevice.
- * the mdio bus works independently on ar7241 and later chips
- * and we need to load mdio1 before gmac0, which can be done
- * by adding a "simple-mfd" compatible to gmac node. The
- * following code checks OF_POPULATED_BUS flag before populating
- * to avoid duplicated population.
- */
- if (!of_node_check_flag(np, OF_POPULATED_BUS)) {
- err = of_platform_populate(np, NULL, NULL, &pdev->dev);
- if (err)
- return err;
- }
-
- err = ag71xx_phy_connect(ag);
- if (err)
- return err;
-
- err = ag71xx_debugfs_init(ag);
- if (err)
- goto err_phy_disconnect;
-
- platform_set_drvdata(pdev, dev);
-
- err = register_netdev(dev);
- if (err) {
- dev_err(&pdev->dev, "unable to register net device\n");
- platform_set_drvdata(pdev, NULL);
- ag71xx_debugfs_exit(ag);
- goto err_phy_disconnect;
- }
-
- pr_info("%s: Atheros AG71xx at 0x%08lx, irq %d, mode: %s\n",
- dev->name, (unsigned long) ag->mac_base, dev->irq,
- phy_modes(ag->phy_if_mode));
-
- return 0;
-
-err_phy_disconnect:
- ag71xx_phy_disconnect(ag);
- return err;
-}
-
-static int ag71xx_remove(struct platform_device *pdev)
-{
- struct net_device *dev = platform_get_drvdata(pdev);
- struct ag71xx *ag;
-
- if (!dev)
- return 0;
-
- ag = netdev_priv(dev);
- ag71xx_debugfs_exit(ag);
- ag71xx_phy_disconnect(ag);
- unregister_netdev(dev);
- platform_set_drvdata(pdev, NULL);
- return 0;
-}
-
-static const struct of_device_id ag71xx_match[] = {
- { .compatible = "qca,ar7100-eth" },
- { .compatible = "qca,ar7240-eth" },
- { .compatible = "qca,ar7241-eth" },
- { .compatible = "qca,ar7242-eth" },
- { .compatible = "qca,ar9130-eth" },
- { .compatible = "qca,ar9330-eth" },
- { .compatible = "qca,ar9340-eth" },
- { .compatible = "qca,qca9530-eth" },
- { .compatible = "qca,qca9550-eth" },
- { .compatible = "qca,qca9560-eth" },
- {}
-};
-
-static struct platform_driver ag71xx_driver = {
- .probe = ag71xx_probe,
- .remove = ag71xx_remove,
- .driver = {
- .name = AG71XX_DRV_NAME,
- .of_match_table = ag71xx_match,
- }
-};
-
-static int __init ag71xx_module_init(void)
-{
- int ret;
-
- ret = ag71xx_debugfs_root_init();
- if (ret)
- goto err_out;
-
- ret = platform_driver_register(&ag71xx_driver);
- if (ret)
- goto err_debugfs_exit;
-
- return 0;
-
-err_debugfs_exit:
- ag71xx_debugfs_root_exit();
-err_out:
- return ret;
-}
-
-static void __exit ag71xx_module_exit(void)
-{
- platform_driver_unregister(&ag71xx_driver);
- ag71xx_debugfs_root_exit();
-}
-
-module_init(ag71xx_module_init);
-module_exit(ag71xx_module_exit);
-
-MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>");
-MODULE_AUTHOR("Felix Fietkau <nbd@nbd.name>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" AG71XX_DRV_NAME);
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/of_mdio.h>
-#include "ag71xx.h"
-
-#define AG71XX_MDIO_RETRY 1000
-#define AG71XX_MDIO_DELAY 5
-
-static int bus_count;
-
-static int ag71xx_mdio_wait_busy(struct ag71xx_mdio *am)
-{
- int i;
-
- for (i = 0; i < AG71XX_MDIO_RETRY; i++) {
- u32 busy;
-
- udelay(AG71XX_MDIO_DELAY);
-
- regmap_read(am->mii_regmap, AG71XX_REG_MII_IND, &busy);
- if (!busy)
- return 0;
-
- udelay(AG71XX_MDIO_DELAY);
- }
-
- pr_err("%s: MDIO operation timed out\n", am->mii_bus->name);
-
- return -ETIMEDOUT;
-}
-
-static int ag71xx_mdio_mii_read(struct mii_bus *bus, int addr, int reg)
-{
- struct ag71xx_mdio *am = bus->priv;
- int err;
- int ret;
-
- err = ag71xx_mdio_wait_busy(am);
- if (err)
- return 0xffff;
-
- regmap_write(am->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
- regmap_write(am->mii_regmap, AG71XX_REG_MII_ADDR,
- ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
- regmap_write(am->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_READ);
-
- err = ag71xx_mdio_wait_busy(am);
- if (err)
- return 0xffff;
-
- regmap_read(am->mii_regmap, AG71XX_REG_MII_STATUS, &ret);
- ret &= 0xffff;
- regmap_write(am->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
-
- DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret);
-
- return ret;
-}
-
-static int ag71xx_mdio_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
-{
- struct ag71xx_mdio *am = bus->priv;
-
- DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
-
- regmap_write(am->mii_regmap, AG71XX_REG_MII_ADDR,
- ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
- regmap_write(am->mii_regmap, AG71XX_REG_MII_CTRL, val);
-
- ag71xx_mdio_wait_busy(am);
-
- return 0;
-}
-
-static const u32 ar71xx_mdio_div_table[] = {
- 4, 4, 6, 8, 10, 14, 20, 28,
-};
-
-static const u32 ar7240_mdio_div_table[] = {
- 2, 2, 4, 6, 8, 12, 18, 26, 32, 40, 48, 56, 62, 70, 78, 96,
-};
-
-static const u32 ar933x_mdio_div_table[] = {
- 4, 4, 6, 8, 10, 14, 20, 28, 34, 42, 50, 58, 66, 74, 82, 98,
-};
-
-static int ag71xx_mdio_get_divider(struct device_node *np, u32 *div)
-{
- struct clk *ref_clk = of_clk_get(np, 0);
- unsigned long ref_clock;
- u32 mdio_clock;
- const u32 *table;
- int ndivs, i;
-
- if (IS_ERR(ref_clk))
- return -EINVAL;
-
- ref_clock = clk_get_rate(ref_clk);
- clk_put(ref_clk);
-
- if(of_property_read_u32(np, "qca,mdio-max-frequency", &mdio_clock)) {
- if (of_property_read_bool(np, "builtin-switch"))
- mdio_clock = 5000000;
- else
- mdio_clock = 2000000;
- }
-
- if (of_device_is_compatible(np, "qca,ar9330-mdio") ||
- of_device_is_compatible(np, "qca,ar9340-mdio")) {
- table = ar933x_mdio_div_table;
- ndivs = ARRAY_SIZE(ar933x_mdio_div_table);
- } else if (of_device_is_compatible(np, "qca,ar7240-mdio")) {
- table = ar7240_mdio_div_table;
- ndivs = ARRAY_SIZE(ar7240_mdio_div_table);
- } else {
- table = ar71xx_mdio_div_table;
- ndivs = ARRAY_SIZE(ar71xx_mdio_div_table);
- }
-
- for (i = 0; i < ndivs; i++) {
- unsigned long t;
-
- t = ref_clock / table[i];
- if (t <= mdio_clock) {
- *div = i;
- return 0;
- }
- }
-
- return -ENOENT;
-}
-
-static int ag71xx_mdio_reset(struct mii_bus *bus)
-{
- struct device_node *np = bus->dev.of_node;
- struct ag71xx_mdio *am = bus->priv;
- bool builtin_switch;
- u32 t;
-
- builtin_switch = of_property_read_bool(np, "builtin-switch");
-
- if (ag71xx_mdio_get_divider(np, &t)) {
- if (of_device_is_compatible(np, "qca,ar9340-mdio"))
- t = MII_CFG_CLK_DIV_58;
- else if (builtin_switch)
- t = MII_CFG_CLK_DIV_10;
- else
- t = MII_CFG_CLK_DIV_28;
- }
-
- regmap_write(am->mii_regmap, AG71XX_REG_MII_CFG, t | MII_CFG_RESET);
- udelay(100);
-
- regmap_write(am->mii_regmap, AG71XX_REG_MII_CFG, t);
- udelay(100);
-
- return 0;
-}
-
-static int ag71xx_mdio_probe(struct platform_device *pdev)
-{
- struct device *amdev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
- struct ag71xx_mdio *am;
- struct mii_bus *mii_bus;
- bool builtin_switch;
- int i, err;
-
- am = devm_kzalloc(amdev, sizeof(*am), GFP_KERNEL);
- if (!am)
- return -ENOMEM;
-
- am->mii_regmap = syscon_regmap_lookup_by_phandle(np, "regmap");
- if (IS_ERR(am->mii_regmap))
- return PTR_ERR(am->mii_regmap);
-
- mii_bus = devm_mdiobus_alloc(amdev);
- if (!mii_bus)
- return -ENOMEM;
-
- am->mdio_reset = devm_reset_control_get_exclusive(amdev, "mdio");
- builtin_switch = of_property_read_bool(np, "builtin-switch");
-
- mii_bus->name = "ag71xx_mdio";
- mii_bus->read = ag71xx_mdio_mii_read;
- mii_bus->write = ag71xx_mdio_mii_write;
- mii_bus->reset = ag71xx_mdio_reset;
- mii_bus->priv = am;
- mii_bus->parent = amdev;
- snprintf(mii_bus->id, MII_BUS_ID_SIZE, "%s.%d", np->name, bus_count++);
-
- if (!builtin_switch &&
- of_property_read_u32(np, "phy-mask", &mii_bus->phy_mask))
- mii_bus->phy_mask = 0;
-
- for (i = 0; i < PHY_MAX_ADDR; i++)
- mii_bus->irq[i] = PHY_POLL;
-
- if (!IS_ERR(am->mdio_reset)) {
- reset_control_assert(am->mdio_reset);
- msleep(100);
- reset_control_deassert(am->mdio_reset);
- msleep(200);
- }
-
- err = of_mdiobus_register(mii_bus, np);
- if (err)
- return err;
-
- am->mii_bus = mii_bus;
- platform_set_drvdata(pdev, am);
-
- return 0;
-}
-
-static int ag71xx_mdio_remove(struct platform_device *pdev)
-{
- struct ag71xx_mdio *am = platform_get_drvdata(pdev);
-
- mdiobus_unregister(am->mii_bus);
- return 0;
-}
-
-static const struct of_device_id ag71xx_mdio_match[] = {
- { .compatible = "qca,ar7240-mdio" },
- { .compatible = "qca,ar9330-mdio" },
- { .compatible = "qca,ar9340-mdio" },
- { .compatible = "qca,ath79-mdio" },
- {}
-};
-
-static struct platform_driver ag71xx_mdio_driver = {
- .probe = ag71xx_mdio_probe,
- .remove = ag71xx_mdio_remove,
- .driver = {
- .name = "ag71xx-mdio",
- .of_match_table = ag71xx_mdio_match,
- }
-};
-
-module_platform_driver(ag71xx_mdio_driver);
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/of_mdio.h>
-#include "ag71xx.h"
-
-static void ag71xx_phy_link_adjust(struct net_device *dev)
-{
- struct ag71xx *ag = netdev_priv(dev);
- struct phy_device *phydev = ag->phy_dev;
- unsigned long flags;
- int status_change = 0;
-
- spin_lock_irqsave(&ag->lock, flags);
-
- if (phydev->link) {
- if (ag->duplex != phydev->duplex
- || ag->speed != phydev->speed) {
- status_change = 1;
- }
- }
-
- if (phydev->link != ag->link)
- status_change = 1;
-
- ag->link = phydev->link;
- ag->duplex = phydev->duplex;
- ag->speed = phydev->speed;
-
- if (status_change)
- ag71xx_link_adjust(ag);
-
- spin_unlock_irqrestore(&ag->lock, flags);
-}
-
-int ag71xx_phy_connect(struct ag71xx *ag)
-{
- struct device_node *np = ag->pdev->dev.of_node;
- struct device_node *phy_node;
- int ret;
-
- if (of_phy_is_fixed_link(np)) {
- ret = of_phy_register_fixed_link(np);
- if (ret < 0) {
- dev_err(&ag->pdev->dev,
- "Failed to register fixed PHY link: %d\n", ret);
- return ret;
- }
-
- phy_node = of_node_get(np);
- } else {
- phy_node = of_parse_phandle(np, "phy-handle", 0);
- }
-
- if (!phy_node) {
- dev_err(&ag->pdev->dev,
- "Could not find valid phy node\n");
- return -ENODEV;
- }
-
- ag->phy_dev = of_phy_connect(ag->dev, phy_node, ag71xx_phy_link_adjust,
- 0, ag->phy_if_mode);
-
- of_node_put(phy_node);
-
- if (!ag->phy_dev) {
- dev_err(&ag->pdev->dev,
- "Could not connect to PHY device. Deferring probe.\n");
- return -EPROBE_DEFER;
- }
-
- dev_info(&ag->pdev->dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
- phydev_name(ag->phy_dev),
- ag->phy_dev->phy_id, ag->phy_dev->drv->name);
-
- return 0;
-}
-
-void ag71xx_phy_disconnect(struct ag71xx *ag)
-{
- phy_disconnect(ag->phy_dev);
-}
CONFIG_AT803X_PHY=y
+CONFIG_BCM_NET_PHYLIB=y
CONFIG_BROADCOM_PHY=y
CONFIG_GPIO_WATCHDOG=y
CONFIG_GPIO_WATCHDOG_ARCH_INITCALL=y
CONFIG_LEDS_RESET=y
CONFIG_MARVELL_PHY=y
CONFIG_MICREL_PHY=y
-CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3
+CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_SPLIT_EVA_FW=y
CONFIG_MTD_SPLIT_MINOR_FW=y
CONFIG_PHY_AR7100_USB=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_AR934X=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_ACOMP2=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_HASH_INFO=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
CONFIG_MTD_NAND_CORE=y
-CONFIG_MTD_NAND_ECC=y
CONFIG_MTD_SPI_NAND=y
CONFIG_MTD_SPLIT_MINOR_FW=y
CONFIG_MTD_UBI=y
-CONFIG_MTD_UBI_BLOCK=y
-CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
+CONFIG_MTD_UBI_BLOCK=y
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
# CONFIG_PCI_AR71XX is not set
-# CONFIG_PHY_AR7100_USB is not set
CONFIG_PHY_AR7200_USB=y
+CONFIG_SGL_ALLOC=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
+# CONFIG_UBIFS_FS_ZSTD is not set
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
--- /dev/null
+From 5f5c9858af167f842ee8df053920b98387a71af1 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Mon, 5 Mar 2018 11:41:25 +0100
+Subject: [PATCH 02/27] watchdog: ath79: fix maximum timeout
+
+If the userland tries to set a timeout higher than the max_timeout,
+then we should fallback to max_timeout.
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ drivers/watchdog/ath79_wdt.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/watchdog/ath79_wdt.c
++++ b/drivers/watchdog/ath79_wdt.c
+@@ -111,10 +111,14 @@ static inline void ath79_wdt_disable(voi
+
+ static int ath79_wdt_set_timeout(int val)
+ {
+- if (val < 1 || val > max_timeout)
++ if (val < 1)
+ return -EINVAL;
+
+- timeout = val;
++ if (val > max_timeout)
++ timeout = max_timeout;
++ else
++ timeout = val;
++
+ ath79_wdt_keepalive();
+
+ return 0;
--- /dev/null
+From ecbd9c87f073f097d9fe56390353e64e963e866a Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Tue, 6 Mar 2018 10:03:03 +0100
+Subject: [PATCH 03/27] leds: add reset-controller based driver
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ drivers/leds/Kconfig | 11 ++++
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-reset.c | 137 ++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 149 insertions(+)
+ create mode 100644 drivers/leds/leds-reset.c
+
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -823,6 +823,17 @@ config LEDS_LM36274
+ Say Y to enable the LM36274 LED driver for TI LMU devices.
+ This supports the LED device LM36274.
+
++config LEDS_RESET
++ tristate "LED support for reset-controller API"
++ depends on LEDS_CLASS
++ depends on RESET_CONTROLLER
++ help
++ This option enables support for LEDs connected to pins driven by reset
++ controllers. Yes, DNI actual built HW like that.
++
++ To compile this driver as a module, choose M here: the module
++ will be called leds-reset.
++
+ comment "LED Triggers"
+ source "drivers/leds/trigger/Kconfig"
+
+--- /dev/null
++++ b/drivers/leds/leds-reset.c
+@@ -0,0 +1,140 @@
++/*
++ * Copyright (C) 2018 John Crispin <john@phrozen.org>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++#include <linux/err.h>
++#include <linux/reset.h>
++#include <linux/kernel.h>
++#include <linux/leds.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/reset.h>
++
++struct reset_led_data {
++ struct led_classdev cdev;
++ struct reset_control *rst;
++};
++
++static inline struct reset_led_data *
++ cdev_to_reset_led_data(struct led_classdev *led_cdev)
++{
++ return container_of(led_cdev, struct reset_led_data, cdev);
++}
++
++static void reset_led_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct reset_led_data *led_dat = cdev_to_reset_led_data(led_cdev);
++
++ if (value == LED_OFF)
++ reset_control_assert(led_dat->rst);
++ else
++ reset_control_deassert(led_dat->rst);
++}
++
++struct reset_leds_priv {
++ int num_leds;
++ struct reset_led_data leds[];
++};
++
++static inline int sizeof_reset_leds_priv(int num_leds)
++{
++ return sizeof(struct reset_leds_priv) +
++ (sizeof(struct reset_led_data) * num_leds);
++}
++
++static struct reset_leds_priv *reset_leds_create(struct platform_device *pdev)
++{
++ struct device *dev = &pdev->dev;
++ struct fwnode_handle *child;
++ struct reset_leds_priv *priv;
++ int count, ret;
++
++ count = device_get_child_node_count(dev);
++ if (!count)
++ return ERR_PTR(-ENODEV);
++
++ priv = devm_kzalloc(dev, sizeof_reset_leds_priv(count), GFP_KERNEL);
++ if (!priv)
++ return ERR_PTR(-ENOMEM);
++
++ device_for_each_child_node(dev, child) {
++ struct reset_led_data *led = &priv->leds[priv->num_leds];
++ struct device_node *np = to_of_node(child);
++
++ ret = fwnode_property_read_string(child, "label", &led->cdev.name);
++ if (!led->cdev.name) {
++ fwnode_handle_put(child);
++ return ERR_PTR(-EINVAL);
++ }
++ led->rst = __of_reset_control_get(np, NULL, 0, 0, 0, true);
++ if (IS_ERR(led->rst))
++ return ERR_PTR(-EINVAL);
++
++ fwnode_property_read_string(child, "linux,default-trigger",
++ &led->cdev.default_trigger);
++
++ led->cdev.brightness_set = reset_led_set;
++ ret = devm_led_classdev_register(&pdev->dev, &led->cdev);
++ if (ret < 0)
++ return ERR_PTR(ret);
++ led->cdev.dev->of_node = np;
++ priv->num_leds++;
++ }
++
++ return priv;
++}
++
++static const struct of_device_id of_reset_leds_match[] = {
++ { .compatible = "reset-leds", },
++ {},
++};
++
++MODULE_DEVICE_TABLE(of, of_reset_leds_match);
++
++static int reset_led_probe(struct platform_device *pdev)
++{
++ struct reset_leds_priv *priv;
++
++ priv = reset_leds_create(pdev);
++ if (IS_ERR(priv))
++ return PTR_ERR(priv);
++
++ platform_set_drvdata(pdev, priv);
++
++ return 0;
++}
++
++static void reset_led_shutdown(struct platform_device *pdev)
++{
++ struct reset_leds_priv *priv = platform_get_drvdata(pdev);
++ int i;
++
++ for (i = 0; i < priv->num_leds; i++) {
++ struct reset_led_data *led = &priv->leds[i];
++
++ if (!(led->cdev.flags & LED_RETAIN_AT_SHUTDOWN))
++ reset_led_set(&led->cdev, LED_OFF);
++ }
++}
++
++static struct platform_driver reset_led_driver = {
++ .probe = reset_led_probe,
++ .shutdown = reset_led_shutdown,
++ .driver = {
++ .name = "leds-reset",
++ .of_match_table = of_reset_leds_match,
++ },
++};
++
++module_platform_driver(reset_led_driver);
++
++MODULE_AUTHOR("John Crispin <john@phrozen.org>");
++MODULE_DESCRIPTION("reset controller LED driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:leds-reset");
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -85,6 +85,7 @@ obj-$(CONFIG_LEDS_LM3601X) += leds-lm36
+ obj-$(CONFIG_LEDS_TI_LMU_COMMON) += leds-ti-lmu-common.o
+ obj-$(CONFIG_LEDS_LM3697) += leds-lm3697.o
+ obj-$(CONFIG_LEDS_LM36274) += leds-lm36274.o
++obj-$(CONFIG_LEDS_RESET) += leds-reset.o
+
+ # LED SPI Drivers
+ obj-$(CONFIG_LEDS_CR0014114) += leds-cr0014114.o
--- /dev/null
+From 08c9d6ceef01893678a5d2e8a15517c745417f21 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Tue, 6 Mar 2018 10:04:05 +0100
+Subject: [PATCH 04/27] phy: add ath79 usb phys
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ drivers/phy/Kconfig | 16 ++++++
+ drivers/phy/Makefile | 2 +
+ drivers/phy/phy-ar7100-usb.c | 124 +++++++++++++++++++++++++++++++++++++++++++
+ drivers/phy/phy-ar7200-usb.c | 108 +++++++++++++++++++++++++++++++++++++
+ 4 files changed, 250 insertions(+)
+ create mode 100644 drivers/phy/phy-ar7100-usb.c
+ create mode 100644 drivers/phy/phy-ar7200-usb.c
+
+--- a/drivers/phy/Kconfig
++++ b/drivers/phy/Kconfig
+@@ -24,6 +24,22 @@ config GENERIC_PHY_MIPI_DPHY
+ Provides a number of helpers a core functions for MIPI D-PHY
+ drivers to us.
+
++config PHY_AR7100_USB
++ tristate "Atheros AR7100 USB PHY driver"
++ depends on ATH79 || COMPILE_TEST
++ default y if USB_EHCI_HCD_PLATFORM
++ select PHY_SIMPLE
++ help
++ Enable this to support the USB PHY on Atheros AR7100 SoCs.
++
++config PHY_AR7200_USB
++ tristate "Atheros AR7200 USB PHY driver"
++ depends on ATH79 || COMPILE_TEST
++ default y if USB_EHCI_HCD_PLATFORM
++ select PHY_SIMPLE
++ help
++ Enable this to support the USB PHY on Atheros AR7200 SoCs.
++
+ config PHY_LPC18XX_USB_OTG
+ tristate "NXP LPC18xx/43xx SoC USB OTG PHY driver"
+ depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
+--- a/drivers/phy/Makefile
++++ b/drivers/phy/Makefile
+@@ -4,6 +4,8 @@
+ #
+
+ obj-$(CONFIG_GENERIC_PHY) += phy-core.o
++obj-$(CONFIG_PHY_AR7100_USB) += phy-ar7100-usb.o
++obj-$(CONFIG_PHY_AR7200_USB) += phy-ar7200-usb.o
+ obj-$(CONFIG_GENERIC_PHY_MIPI_DPHY) += phy-core-mipi-dphy.o
+ obj-$(CONFIG_PHY_LPC18XX_USB_OTG) += phy-lpc18xx-usb-otg.o
+ obj-$(CONFIG_PHY_XGENE) += phy-xgene.o
+--- /dev/null
++++ b/drivers/phy/phy-ar7100-usb.c
+@@ -0,0 +1,140 @@
++/*
++ * Copyright (C) 2018 John Crispin <john@phrozen.org>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/phy/phy.h>
++#include <linux/delay.h>
++#include <linux/reset.h>
++#include <linux/of_gpio.h>
++
++#include <asm/mach-ath79/ath79.h>
++#include <asm/mach-ath79/ar71xx_regs.h>
++
++struct ar7100_usb_phy {
++ struct reset_control *rst_phy;
++ struct reset_control *rst_host;
++ struct reset_control *rst_ohci_dll;
++ void __iomem *io_base;
++ struct phy *phy;
++ int gpio;
++};
++
++static int ar7100_usb_phy_power_off(struct phy *phy)
++{
++ struct ar7100_usb_phy *priv = phy_get_drvdata(phy);
++ int err = 0;
++
++ err |= reset_control_assert(priv->rst_host);
++ err |= reset_control_assert(priv->rst_phy);
++ err |= reset_control_assert(priv->rst_ohci_dll);
++
++ return err;
++}
++
++static int ar7100_usb_phy_power_on(struct phy *phy)
++{
++ struct ar7100_usb_phy *priv = phy_get_drvdata(phy);
++ int err = 0;
++
++ err |= ar7100_usb_phy_power_off(phy);
++ mdelay(100);
++ err |= reset_control_deassert(priv->rst_ohci_dll);
++ err |= reset_control_deassert(priv->rst_phy);
++ err |= reset_control_deassert(priv->rst_host);
++ mdelay(500);
++ iowrite32(0xf0000, priv->io_base + AR71XX_USB_CTRL_REG_CONFIG);
++ iowrite32(0x20c00, priv->io_base + AR71XX_USB_CTRL_REG_FLADJ);
++
++ return err;
++}
++
++static const struct phy_ops ar7100_usb_phy_ops = {
++ .power_on = ar7100_usb_phy_power_on,
++ .power_off = ar7100_usb_phy_power_off,
++ .owner = THIS_MODULE,
++};
++
++static int ar7100_usb_phy_probe(struct platform_device *pdev)
++{
++ struct phy_provider *phy_provider;
++ struct resource *res;
++ struct ar7100_usb_phy *priv;
++
++ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
++ if (!priv)
++ return -ENOMEM;
++
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ priv->io_base = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(priv->io_base))
++ return PTR_ERR(priv->io_base);
++
++ priv->rst_phy = devm_reset_control_get(&pdev->dev, "usb-phy");
++ if (IS_ERR(priv->rst_phy)) {
++ dev_err(&pdev->dev, "phy reset is missing\n");
++ return PTR_ERR(priv->rst_phy);
++ }
++
++ priv->rst_host = devm_reset_control_get(&pdev->dev, "usb-host");
++ if (IS_ERR(priv->rst_host)) {
++ dev_err(&pdev->dev, "host reset is missing\n");
++ return PTR_ERR(priv->rst_host);
++ }
++
++ priv->rst_ohci_dll = devm_reset_control_get(&pdev->dev, "usb-ohci-dll");
++ if (IS_ERR(priv->rst_ohci_dll)) {
++ dev_err(&pdev->dev, "ohci-dll reset is missing\n");
++ return PTR_ERR(priv->rst_host);
++ }
++
++ priv->phy = devm_phy_create(&pdev->dev, NULL, &ar7100_usb_phy_ops);
++ if (IS_ERR(priv->phy)) {
++ dev_err(&pdev->dev, "failed to create PHY\n");
++ return PTR_ERR(priv->phy);
++ }
++
++ priv->gpio = of_get_gpio(pdev->dev.of_node, 0);
++ if (priv->gpio >= 0) {
++ int ret = devm_gpio_request(&pdev->dev, priv->gpio, dev_name(&pdev->dev));
++
++ if (ret) {
++ dev_err(&pdev->dev, "failed to request gpio\n");
++ return ret;
++ }
++ gpio_export_with_name(priv->gpio, 0, dev_name(&pdev->dev));
++ gpio_set_value(priv->gpio, 1);
++ }
++
++ phy_set_drvdata(priv->phy, priv);
++
++ phy_provider = devm_of_phy_provider_register(&pdev->dev, of_phy_simple_xlate);
++
++
++ return PTR_ERR_OR_ZERO(phy_provider);
++}
++
++static const struct of_device_id ar7100_usb_phy_of_match[] = {
++ { .compatible = "qca,ar7100-usb-phy" },
++ {}
++};
++MODULE_DEVICE_TABLE(of, ar7100_usb_phy_of_match);
++
++static struct platform_driver ar7100_usb_phy_driver = {
++ .probe = ar7100_usb_phy_probe,
++ .driver = {
++ .of_match_table = ar7100_usb_phy_of_match,
++ .name = "ar7100-usb-phy",
++ }
++};
++module_platform_driver(ar7100_usb_phy_driver);
++
++MODULE_DESCRIPTION("ATH79 USB PHY driver");
++MODULE_AUTHOR("Alban Bedel <albeu@free.fr>");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/phy/phy-ar7200-usb.c
+@@ -0,0 +1,135 @@
++/*
++ * Copyright (C) 2015 Alban Bedel <albeu@free.fr>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/phy/phy.h>
++#include <linux/reset.h>
++#include <linux/of_gpio.h>
++
++struct ar7200_usb_phy {
++ struct reset_control *rst_phy;
++ struct reset_control *rst_phy_analog;
++ struct reset_control *suspend_override;
++ struct phy *phy;
++ int gpio;
++};
++
++static int ar7200_usb_phy_power_on(struct phy *phy)
++{
++ struct ar7200_usb_phy *priv = phy_get_drvdata(phy);
++ int err = 0;
++
++ if (priv->suspend_override)
++ err = reset_control_assert(priv->suspend_override);
++ if (priv->rst_phy)
++ err |= reset_control_deassert(priv->rst_phy);
++ if (priv->rst_phy_analog)
++ err |= reset_control_deassert(priv->rst_phy_analog);
++
++ return err;
++}
++
++static int ar7200_usb_phy_power_off(struct phy *phy)
++{
++ struct ar7200_usb_phy *priv = phy_get_drvdata(phy);
++ int err = 0;
++
++ if (priv->suspend_override)
++ err = reset_control_deassert(priv->suspend_override);
++ if (priv->rst_phy)
++ err |= reset_control_assert(priv->rst_phy);
++ if (priv->rst_phy_analog)
++ err |= reset_control_assert(priv->rst_phy_analog);
++
++ return err;
++}
++
++static const struct phy_ops ar7200_usb_phy_ops = {
++ .power_on = ar7200_usb_phy_power_on,
++ .power_off = ar7200_usb_phy_power_off,
++ .owner = THIS_MODULE,
++};
++
++static int ar7200_usb_phy_probe(struct platform_device *pdev)
++{
++ struct phy_provider *phy_provider;
++ struct ar7200_usb_phy *priv;
++
++ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
++ if (!priv)
++ return -ENOMEM;
++
++ priv->rst_phy = devm_reset_control_get(&pdev->dev, "usb-phy");
++ if (IS_ERR(priv->rst_phy)) {
++ dev_err(&pdev->dev, "phy reset is missing\n");
++ return PTR_ERR(priv->rst_phy);
++ }
++
++ priv->rst_phy_analog = devm_reset_control_get_optional(
++ &pdev->dev, "usb-phy-analog");
++ if (IS_ERR(priv->rst_phy_analog)) {
++ if (PTR_ERR(priv->rst_phy_analog) == -ENOENT)
++ priv->rst_phy_analog = NULL;
++ else
++ return PTR_ERR(priv->rst_phy_analog);
++ }
++
++ priv->suspend_override = devm_reset_control_get_optional(
++ &pdev->dev, "usb-suspend-override");
++ if (IS_ERR(priv->suspend_override)) {
++ if (PTR_ERR(priv->suspend_override) == -ENOENT)
++ priv->suspend_override = NULL;
++ else
++ return PTR_ERR(priv->suspend_override);
++ }
++
++ priv->phy = devm_phy_create(&pdev->dev, NULL, &ar7200_usb_phy_ops);
++ if (IS_ERR(priv->phy)) {
++ dev_err(&pdev->dev, "failed to create PHY\n");
++ return PTR_ERR(priv->phy);
++ }
++
++ priv->gpio = of_get_gpio(pdev->dev.of_node, 0);
++ if (priv->gpio >= 0) {
++ int ret = devm_gpio_request(&pdev->dev, priv->gpio, dev_name(&pdev->dev));
++
++ if (ret) {
++ dev_err(&pdev->dev, "failed to request gpio\n");
++ return ret;
++ }
++ gpio_export_with_name(priv->gpio, 0, dev_name(&pdev->dev));
++ gpio_set_value(priv->gpio, 1);
++ }
++
++ phy_set_drvdata(priv->phy, priv);
++
++ phy_provider = devm_of_phy_provider_register(&pdev->dev, of_phy_simple_xlate);
++
++ return PTR_ERR_OR_ZERO(phy_provider);
++}
++
++static const struct of_device_id ar7200_usb_phy_of_match[] = {
++ { .compatible = "qca,ar7200-usb-phy" },
++ {}
++};
++MODULE_DEVICE_TABLE(of, ar7200_usb_phy_of_match);
++
++static struct platform_driver ar7200_usb_phy_driver = {
++ .probe = ar7200_usb_phy_probe,
++ .driver = {
++ .of_match_table = ar7200_usb_phy_of_match,
++ .name = "ar7200-usb-phy",
++ }
++};
++module_platform_driver(ar7200_usb_phy_driver);
++
++MODULE_DESCRIPTION("ATH79 USB PHY driver");
++MODULE_AUTHOR("Alban Bedel <albeu@free.fr>");
++MODULE_LICENSE("GPL");
--- /dev/null
+From 2201818e5bd33f389beceb3943fdfcf5a698fc5b Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Tue, 6 Mar 2018 10:01:43 +0100
+Subject: [PATCH 05/27] usb: add more OF/quirk properties
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ drivers/usb/host/ehci-platform.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/usb/host/ehci-platform.c
++++ b/drivers/usb/host/ehci-platform.c
+@@ -159,6 +159,11 @@ static int ehci_platform_probe(struct pl
+ ehci = hcd_to_ehci(hcd);
+
+ if (pdata == &ehci_platform_defaults && dev->dev.of_node) {
++ of_property_read_u32(dev->dev.of_node, "caps-offset", &pdata->caps_offset);
++
++ if (of_property_read_bool(dev->dev.of_node, "has-synopsys-hc-bug"))
++ pdata->has_synopsys_hc_bug = 1;
++
+ if (of_property_read_bool(dev->dev.of_node, "big-endian-regs"))
+ ehci->big_endian_mmio = 1;
+
--- /dev/null
+From f3eacff2310a60348a755c50a8da6fc251fc8587 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Tue, 6 Mar 2018 09:55:13 +0100
+Subject: [PATCH 07/33] irqchip/irq-ath79-intc: add irq cascade driver for
+ QCA9556 SoCs
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ drivers/irqchip/Makefile | 1 +
+ drivers/irqchip/irq-ath79-intc.c | 142 +++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 143 insertions(+)
+ create mode 100644 drivers/irqchip/irq-ath79-intc.c
+
+--- a/drivers/irqchip/Makefile
++++ b/drivers/irqchip/Makefile
+@@ -4,6 +4,7 @@ obj-$(CONFIG_IRQCHIP) += irqchip.o
+ obj-$(CONFIG_AL_FIC) += irq-al-fic.o
+ obj-$(CONFIG_ALPINE_MSI) += irq-alpine-msi.o
+ obj-$(CONFIG_ATH79) += irq-ath79-cpu.o
++obj-$(CONFIG_ATH79) += irq-ath79-intc.o
+ obj-$(CONFIG_ATH79) += irq-ath79-misc.o
+ obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
+ obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2836.o
+--- /dev/null
++++ b/drivers/irqchip/irq-ath79-intc.c
+@@ -0,0 +1,142 @@
++/*
++ * Atheros AR71xx/AR724x/AR913x specific interrupt handling
++ *
++ * Copyright (C) 2018 John Crispin <john@phrozen.org>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ */
++
++#include <linux/interrupt.h>
++#include <linux/irqchip.h>
++#include <linux/of.h>
++#include <linux/of_irq.h>
++#include <linux/irqdomain.h>
++
++#include <asm/irq_cpu.h>
++#include <asm/mach-ath79/ath79.h>
++#include <asm/mach-ath79/ar71xx_regs.h>
++
++#define ATH79_MAX_INTC_CASCADE 3
++
++struct ath79_intc {
++ struct irq_chip chip;
++ u32 irq;
++ u32 pending_mask;
++ u32 int_status;
++ u32 irq_mask[ATH79_MAX_INTC_CASCADE];
++ u32 irq_wb_chan[ATH79_MAX_INTC_CASCADE];
++};
++
++static void ath79_intc_irq_handler(struct irq_desc *desc)
++{
++ struct irq_domain *domain = irq_desc_get_handler_data(desc);
++ struct ath79_intc *intc = domain->host_data;
++ u32 pending;
++
++ pending = ath79_reset_rr(intc->int_status);
++ pending &= intc->pending_mask;
++
++ if (pending) {
++ int i;
++
++ for (i = 0; i < domain->hwirq_max; i++)
++ if (pending & intc->irq_mask[i]) {
++ if (intc->irq_wb_chan[i] != 0xffffffff)
++ ath79_ddr_wb_flush(intc->irq_wb_chan[i]);
++ generic_handle_irq(irq_find_mapping(domain, i));
++ }
++ } else {
++ spurious_interrupt();
++ }
++}
++
++static void ath79_intc_irq_enable(struct irq_data *d)
++{
++ struct ath79_intc *intc = d->domain->host_data;
++ enable_irq(intc->irq);
++}
++
++static void ath79_intc_irq_disable(struct irq_data *d)
++{
++ struct ath79_intc *intc = d->domain->host_data;
++ disable_irq(intc->irq);
++}
++
++static int ath79_intc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
++{
++ struct ath79_intc *intc = d->host_data;
++
++ irq_set_chip_and_handler(irq, &intc->chip, handle_level_irq);
++
++ return 0;
++}
++
++static const struct irq_domain_ops ath79_irq_domain_ops = {
++ .xlate = irq_domain_xlate_onecell,
++ .map = ath79_intc_map,
++};
++
++static int __init ath79_intc_of_init(
++ struct device_node *node, struct device_node *parent)
++{
++ struct irq_domain *domain;
++ struct ath79_intc *intc;
++ int cnt, cntwb, i, err;
++
++ cnt = of_property_count_u32_elems(node, "qca,pending-bits");
++ if (cnt > ATH79_MAX_INTC_CASCADE)
++ panic("Too many INTC pending bits\n");
++
++ intc = kzalloc(sizeof(*intc), GFP_KERNEL);
++ if (!intc)
++ panic("Failed to allocate INTC memory\n");
++ intc->chip = dummy_irq_chip;
++ intc->chip.name = "INTC";
++ intc->chip.irq_disable = ath79_intc_irq_disable;
++ intc->chip.irq_enable = ath79_intc_irq_enable;
++
++ if (of_property_read_u32(node, "qca,int-status-addr", &intc->int_status) < 0) {
++ panic("Missing address of interrupt status register\n");
++ }
++
++ of_property_read_u32_array(node, "qca,pending-bits", intc->irq_mask, cnt);
++ for (i = 0; i < cnt; i++) {
++ intc->pending_mask |= intc->irq_mask[i];
++ intc->irq_wb_chan[i] = 0xffffffff;
++ }
++
++ cntwb = of_count_phandle_with_args(
++ node, "qca,ddr-wb-channels", "#qca,ddr-wb-channel-cells");
++
++ for (i = 0; i < cntwb; i++) {
++ struct of_phandle_args args;
++ u32 irq = i;
++
++ of_property_read_u32_index(
++ node, "qca,ddr-wb-channel-interrupts", i, &irq);
++ if (irq >= ATH79_MAX_INTC_CASCADE)
++ continue;
++
++ err = of_parse_phandle_with_args(
++ node, "qca,ddr-wb-channels",
++ "#qca,ddr-wb-channel-cells",
++ i, &args);
++ if (err)
++ return err;
++
++ intc->irq_wb_chan[irq] = args.args[0];
++ }
++
++ intc->irq = irq_of_parse_and_map(node, 0);
++ if (!intc->irq)
++ panic("Failed to get INTC IRQ");
++
++ domain = irq_domain_add_linear(node, cnt, &ath79_irq_domain_ops, intc);
++ irq_set_chained_handler_and_data(intc->irq, ath79_intc_irq_handler, domain);
++
++ return 0;
++}
++IRQCHIP_DECLARE(ath79_intc, "qca,ar9340-intc",
++ ath79_intc_of_init);
--- /dev/null
+From e029f998594f151008ecbfa024e2957edd2a5189 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Tue, 6 Mar 2018 09:58:19 +0100
+Subject: [PATCH 08/33] irqchip/irq-ath79-cpu: drop !OF init helper
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ drivers/irqchip/irq-ath79-cpu.c | 7 -------
+ 1 file changed, 7 deletions(-)
+
+--- a/drivers/irqchip/irq-ath79-cpu.c
++++ b/drivers/irqchip/irq-ath79-cpu.c
+@@ -85,10 +85,3 @@ static int __init ar79_cpu_intc_of_init(
+ }
+ IRQCHIP_DECLARE(ar79_cpu_intc, "qca,ar7100-cpu-intc",
+ ar79_cpu_intc_of_init);
+-
+-void __init ath79_cpu_irq_init(unsigned irq_wb_chan2, unsigned irq_wb_chan3)
+-{
+- irq_wb_chan[2] = irq_wb_chan2;
+- irq_wb_chan[3] = irq_wb_chan3;
+- mips_cpu_irq_init();
+-}
--- /dev/null
+From 0c8856211d26f84277f7fcb0b9595e5c646bc464 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Tue, 6 Mar 2018 10:00:55 +0100
+Subject: [PATCH 11/33] MIPS: ath79: select the PINCTRL subsystem
+
+The pinmux on QCA SoCs is controlled by a single register. The
+"pinctrl-single" driver can be used but requires the target
+to select PINCTRL.
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ arch/mips/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -295,6 +295,7 @@ config BCM63XX
+ select SYS_HAS_EARLY_PRINTK
+ select SWAP_IO_SPACE
+ select GPIOLIB
++ select PINCTRL
+ select HAVE_CLK
+ select MIPS_L1_CACHE_SHIFT_4
+ select CLKDEV_LOOKUP
--- /dev/null
+From 4a4f869ec58ed8910b9b2e68d0eee50957e9bb20 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Mon, 25 Jun 2018 15:52:10 +0200
+Subject: [PATCH 17/33] dt-bindings: PCI: qcom,ar7100: adds binding doc
+
+With the driver being converted from platform_data to pure OF, we need to
+also add some docs.
+
+Cc: Rob Herring <robh+dt@kernel.org>
+Cc: devicetree@vger.kernel.org
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ .../devicetree/bindings/pci/qcom,ar7100-pci.txt | 38 ++++++++++++++++++++++
+ 1 file changed, 38 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/pci/qcom,ar7100-pci.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/pci/qcom,ar7100-pci.txt
+@@ -0,0 +1,38 @@
++* Qualcomm Atheros AR7100 PCI express root complex
++
++Required properties:
++- compatible: should contain "qcom,ar7100-pci" to identify the core.
++- reg: Should contain the register ranges as listed in the reg-names property.
++- reg-names: Definition: Must include the following entries
++ - "cfg_base" IO Memory
++- #address-cells: set to <3>
++- #size-cells: set to <2>
++- ranges: ranges for the PCI memory and I/O regions
++- interrupt-map-mask and interrupt-map: standard PCI
++ properties to define the mapping of the PCIe interface to interrupt
++ numbers.
++- #interrupt-cells: set to <1>
++- interrupt-controller: define to enable the builtin IRQ cascade.
++
++Optional properties:
++- interrupt-parent: phandle to the MIPS IRQ controller
++
++* Example for ar7100
++ pcie-controller@180c0000 {
++ compatible = "qca,ar7100-pci";
++ #address-cells = <3>;
++ #size-cells = <2>;
++ bus-range = <0x0 0x0>;
++ reg = <0x17010000 0x100>;
++ reg-names = "cfg_base";
++ ranges = <0x2000000 0 0x10000000 0x10000000 0 0x07000000
++ 0x1000000 0 0x00000000 0x00000000 0 0x00000001>;
++ interrupt-parent = <&cpuintc>;
++ interrupts = <2>;
++
++ interrupt-controller;
++ #interrupt-cells = <1>;
++
++ interrupt-map-mask = <0 0 0 1>;
++ interrupt-map = <0 0 0 0 &pcie0 0>;
++ };
--- /dev/null
+From 1855ab6b1d27f5b38a648baf57ff6a534afec26d Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Sat, 23 Jun 2018 15:07:23 +0200
+Subject: [PATCH 18/33] MIPS: pci-ar71xx: convert to OF
+
+With the ath79 target getting converted to pure OF, we can drop all the
+platform data code and add the missing OF bits to the driver. We also add
+a irq domain for the PCI/e controllers cascade, thus making it usable from
+dts files.
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ arch/mips/pci/pci-ar71xx.c | 82 +++++++++++++++++++++++-----------------------
+ 1 file changed, 41 insertions(+), 41 deletions(-)
+
+--- a/arch/mips/pci/pci-ar71xx.c
++++ b/arch/mips/pci/pci-ar71xx.c
+@@ -15,8 +15,11 @@
+ #include <linux/pci.h>
+ #include <linux/pci_regs.h>
+ #include <linux/interrupt.h>
++#include <linux/irqchip/chained_irq.h>
+ #include <linux/init.h>
+ #include <linux/platform_device.h>
++#include <linux/of_irq.h>
++#include <linux/of_pci.h>
+
+ #include <asm/mach-ath79/ar71xx_regs.h>
+ #include <asm/mach-ath79/ath79.h>
+@@ -46,12 +49,13 @@
+ #define AR71XX_PCI_IRQ_COUNT 5
+
+ struct ar71xx_pci_controller {
++ struct device_node *np;
+ void __iomem *cfg_base;
+ int irq;
+- int irq_base;
+ struct pci_controller pci_ctrl;
+ struct resource io_res;
+ struct resource mem_res;
++ struct irq_domain *domain;
+ };
+
+ /* Byte lane enable bits */
+@@ -225,29 +229,30 @@ static struct pci_ops ar71xx_pci_ops = {
+
+ static void ar71xx_pci_irq_handler(struct irq_desc *desc)
+ {
+- struct ar71xx_pci_controller *apc;
+ void __iomem *base = ath79_reset_base;
++ struct irq_chip *chip = irq_desc_get_chip(desc);
++ struct ar71xx_pci_controller *apc = irq_desc_get_handler_data(desc);
+ u32 pending;
+
+- apc = irq_desc_get_handler_data(desc);
+-
++ chained_irq_enter(chip, desc);
+ pending = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_STATUS) &
+ __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+
+ if (pending & AR71XX_PCI_INT_DEV0)
+- generic_handle_irq(apc->irq_base + 0);
++ generic_handle_irq(irq_linear_revmap(apc->domain, 1));
+
+ else if (pending & AR71XX_PCI_INT_DEV1)
+- generic_handle_irq(apc->irq_base + 1);
++ generic_handle_irq(irq_linear_revmap(apc->domain, 2));
+
+ else if (pending & AR71XX_PCI_INT_DEV2)
+- generic_handle_irq(apc->irq_base + 2);
++ generic_handle_irq(irq_linear_revmap(apc->domain, 3));
+
+ else if (pending & AR71XX_PCI_INT_CORE)
+- generic_handle_irq(apc->irq_base + 4);
++ generic_handle_irq(irq_linear_revmap(apc->domain, 4));
+
+ else
+ spurious_interrupt();
++ chained_irq_exit(chip, desc);
+ }
+
+ static void ar71xx_pci_irq_unmask(struct irq_data *d)
+@@ -258,7 +263,7 @@ static void ar71xx_pci_irq_unmask(struct
+ u32 t;
+
+ apc = irq_data_get_irq_chip_data(d);
+- irq = d->irq - apc->irq_base;
++ irq = irq_linear_revmap(apc->domain, d->irq);
+
+ t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+ __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+@@ -275,7 +280,7 @@ static void ar71xx_pci_irq_mask(struct i
+ u32 t;
+
+ apc = irq_data_get_irq_chip_data(d);
+- irq = d->irq - apc->irq_base;
++ irq = irq_linear_revmap(apc->domain, d->irq);
+
+ t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+ __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+@@ -291,24 +296,31 @@ static struct irq_chip ar71xx_pci_irq_ch
+ .irq_mask_ack = ar71xx_pci_irq_mask,
+ };
+
++static int ar71xx_pci_irq_map(struct irq_domain *d,
++ unsigned int irq, irq_hw_number_t hw)
++{
++ struct ar71xx_pci_controller *apc = d->host_data;
++
++ irq_set_chip_and_handler(irq, &ar71xx_pci_irq_chip, handle_level_irq);
++ irq_set_chip_data(irq, apc);
++
++ return 0;
++}
++
++static const struct irq_domain_ops ar71xx_pci_domain_ops = {
++ .xlate = irq_domain_xlate_onecell,
++ .map = ar71xx_pci_irq_map,
++};
++
+ static void ar71xx_pci_irq_init(struct ar71xx_pci_controller *apc)
+ {
+ void __iomem *base = ath79_reset_base;
+- int i;
+
+ __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+ __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_STATUS);
+
+- BUILD_BUG_ON(ATH79_PCI_IRQ_COUNT < AR71XX_PCI_IRQ_COUNT);
+-
+- apc->irq_base = ATH79_PCI_IRQ_BASE;
+- for (i = apc->irq_base;
+- i < apc->irq_base + AR71XX_PCI_IRQ_COUNT; i++) {
+- irq_set_chip_and_handler(i, &ar71xx_pci_irq_chip,
+- handle_level_irq);
+- irq_set_chip_data(i, apc);
+- }
+-
++ apc->domain = irq_domain_add_linear(apc->np, AR71XX_PCI_IRQ_COUNT,
++ &ar71xx_pci_domain_ops, apc);
+ irq_set_chained_handler_and_data(apc->irq, ar71xx_pci_irq_handler,
+ apc);
+ }
+@@ -325,6 +337,11 @@ static void ar71xx_pci_reset(void)
+ mdelay(100);
+ }
+
++static const struct of_device_id ar71xx_pci_ids[] = {
++ { .compatible = "qca,ar7100-pci" },
++ {},
++};
++
+ static int ar71xx_pci_probe(struct platform_device *pdev)
+ {
+ struct ar71xx_pci_controller *apc;
+@@ -345,26 +362,6 @@ static int ar71xx_pci_probe(struct platf
+ if (apc->irq < 0)
+ return -EINVAL;
+
+- res = platform_get_resource_byname(pdev, IORESOURCE_IO, "io_base");
+- if (!res)
+- return -EINVAL;
+-
+- apc->io_res.parent = res;
+- apc->io_res.name = "PCI IO space";
+- apc->io_res.start = res->start;
+- apc->io_res.end = res->end;
+- apc->io_res.flags = IORESOURCE_IO;
+-
+- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem_base");
+- if (!res)
+- return -EINVAL;
+-
+- apc->mem_res.parent = res;
+- apc->mem_res.name = "PCI memory space";
+- apc->mem_res.start = res->start;
+- apc->mem_res.end = res->end;
+- apc->mem_res.flags = IORESOURCE_MEM;
+-
+ ar71xx_pci_reset();
+
+ /* setup COMMAND register */
+@@ -377,9 +374,11 @@ static int ar71xx_pci_probe(struct platf
+
+ ar71xx_pci_irq_init(apc);
+
++ apc->np = pdev->dev.of_node;
+ apc->pci_ctrl.pci_ops = &ar71xx_pci_ops;
+ apc->pci_ctrl.mem_resource = &apc->mem_res;
+ apc->pci_ctrl.io_resource = &apc->io_res;
++ pci_load_of_ranges(&apc->pci_ctrl, pdev->dev.of_node);
+
+ register_pci_controller(&apc->pci_ctrl);
+
+@@ -390,6 +389,7 @@ static struct platform_driver ar71xx_pci
+ .probe = ar71xx_pci_probe,
+ .driver = {
+ .name = "ar71xx-pci",
++ .of_match_table = of_match_ptr(ar71xx_pci_ids),
+ },
+ };
+
--- /dev/null
+From ea27764bc3ef2a05decf3ae05edffc289cd0d93c Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Mon, 25 Jun 2018 15:52:02 +0200
+Subject: [PATCH 19/33] dt-bindings: PCI: qcom,ar7240: adds binding doc
+
+With the driver being converted from platform_data to pure OF, we need to
+also add some docs.
+
+Cc: Rob Herring <robh+dt@kernel.org>
+Cc: devicetree@vger.kernel.org
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ .../devicetree/bindings/pci/qcom,ar7240-pci.txt | 42 ++++++++++++++++++++++
+ 1 file changed, 42 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/pci/qcom,ar7240-pci.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/pci/qcom,ar7240-pci.txt
+@@ -0,0 +1,42 @@
++* Qualcomm Atheros AR724X PCI express root complex
++
++Required properties:
++- compatible: should contain "qcom,ar7240-pci" to identify the core.
++- reg: Should contain the register ranges as listed in the reg-names property.
++- reg-names: Definition: Must include the following entries
++ - "crp_base" Configuration registers
++ - "ctrl_base" Control registers
++ - "cfg_base" IO Memory
++- #address-cells: set to <3>
++- #size-cells: set to <2>
++- ranges: ranges for the PCI memory and I/O regions
++- interrupt-map-mask and interrupt-map: standard PCI
++ properties to define the mapping of the PCIe interface to interrupt
++ numbers.
++- #interrupt-cells: set to <1>
++- interrupt-parent: phandle to the MIPS IRQ controller
++
++Optional properties:
++- interrupt-controller: define to enable the builtin IRQ cascade.
++
++* Example for qca9557
++ pcie-controller@180c0000 {
++ compatible = "qcom,ar7240-pci";
++ #address-cells = <3>;
++ #size-cells = <2>;
++ bus-range = <0x0 0x0>;
++ reg = <0x180c0000 0x1000>,
++ <0x180f0000 0x100>,
++ <0x14000000 0x1000>;
++ reg-names = "crp_base", "ctrl_base", "cfg_base";
++ ranges = <0x2000000 0 0x10000000 0x10000000 0 0x04000000
++ 0x1000000 0 0x00000000 0x00000000 0 0x00000001>;
++ interrupt-parent = <&intc2>;
++ interrupts = <1>;
++
++ interrupt-controller;
++ #interrupt-cells = <1>;
++
++ interrupt-map-mask = <0 0 0 1>;
++ interrupt-map = <0 0 0 0 &pcie0 0>;
++ };
--- /dev/null
+From a522ee0199d5d3ea114ca2e211f6ac398d3e8e0b Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Sat, 23 Jun 2018 15:07:37 +0200
+Subject: [PATCH 20/33] MIPS: pci-ar724x: convert to OF
+
+With the ath79 target getting converted to pure OF, we can drop all the
+platform data code and add the missing OF bits to the driver. We also add
+a irq domain for the PCI/e controllers cascade, thus making it usable from
+dts files.
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ arch/mips/pci/pci-ar724x.c | 88 ++++++++++++++++++++++------------------------
+ 1 file changed, 42 insertions(+), 46 deletions(-)
+
+--- a/arch/mips/pci/pci-ar724x.c
++++ b/arch/mips/pci/pci-ar724x.c
+@@ -11,8 +11,11 @@
+ #include <linux/init.h>
+ #include <linux/delay.h>
+ #include <linux/platform_device.h>
++#include <linux/irqchip/chained_irq.h>
+ #include <asm/mach-ath79/ath79.h>
+ #include <asm/mach-ath79/ar71xx_regs.h>
++#include <linux/of_irq.h>
++#include <linux/of_pci.h>
+
+ #define AR724X_PCI_REG_APP 0x00
+ #define AR724X_PCI_REG_RESET 0x18
+@@ -42,17 +45,20 @@ struct ar724x_pci_controller {
+ void __iomem *crp_base;
+
+ int irq;
+- int irq_base;
+
+ bool link_up;
+ bool bar0_is_cached;
+ u32 bar0_value;
+
++ struct device_node *np;
+ struct pci_controller pci_controller;
++ struct irq_domain *domain;
+ struct resource io_res;
+ struct resource mem_res;
+ };
+
++static struct irq_chip ar724x_pci_irq_chip;
++
+ static inline bool ar724x_pci_check_link(struct ar724x_pci_controller *apc)
+ {
+ u32 reset;
+@@ -228,35 +234,31 @@ static struct pci_ops ar724x_pci_ops = {
+
+ static void ar724x_pci_irq_handler(struct irq_desc *desc)
+ {
+- struct ar724x_pci_controller *apc;
+- void __iomem *base;
++ struct irq_chip *chip = irq_desc_get_chip(desc);
++ struct ar724x_pci_controller *apc = irq_desc_get_handler_data(desc);
+ u32 pending;
+
+- apc = irq_desc_get_handler_data(desc);
+- base = apc->ctrl_base;
+-
+- pending = __raw_readl(base + AR724X_PCI_REG_INT_STATUS) &
+- __raw_readl(base + AR724X_PCI_REG_INT_MASK);
++ chained_irq_enter(chip, desc);
++ pending = __raw_readl(apc->ctrl_base + AR724X_PCI_REG_INT_STATUS) &
++ __raw_readl(apc->ctrl_base + AR724X_PCI_REG_INT_MASK);
+
+ if (pending & AR724X_PCI_INT_DEV0)
+- generic_handle_irq(apc->irq_base + 0);
+-
++ generic_handle_irq(irq_linear_revmap(apc->domain, 1));
+ else
+ spurious_interrupt();
++ chained_irq_exit(chip, desc);
+ }
+
+ static void ar724x_pci_irq_unmask(struct irq_data *d)
+ {
+ struct ar724x_pci_controller *apc;
+ void __iomem *base;
+- int offset;
+ u32 t;
+
+ apc = irq_data_get_irq_chip_data(d);
+ base = apc->ctrl_base;
+- offset = apc->irq_base - d->irq;
+
+- switch (offset) {
++ switch (irq_linear_revmap(apc->domain, d->irq)) {
+ case 0:
+ t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+ __raw_writel(t | AR724X_PCI_INT_DEV0,
+@@ -270,14 +272,12 @@ static void ar724x_pci_irq_mask(struct i
+ {
+ struct ar724x_pci_controller *apc;
+ void __iomem *base;
+- int offset;
+ u32 t;
+
+ apc = irq_data_get_irq_chip_data(d);
+ base = apc->ctrl_base;
+- offset = apc->irq_base - d->irq;
+
+- switch (offset) {
++ switch (irq_linear_revmap(apc->domain, d->irq)) {
+ case 0:
+ t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
+ __raw_writel(t & ~AR724X_PCI_INT_DEV0,
+@@ -302,26 +302,34 @@ static struct irq_chip ar724x_pci_irq_ch
+ .irq_mask_ack = ar724x_pci_irq_mask,
+ };
+
++static int ar724x_pci_irq_map(struct irq_domain *d,
++ unsigned int irq, irq_hw_number_t hw)
++{
++ struct ar724x_pci_controller *apc = d->host_data;
++
++ irq_set_chip_and_handler(irq, &ar724x_pci_irq_chip, handle_level_irq);
++ irq_set_chip_data(irq, apc);
++
++ return 0;
++}
++
++static const struct irq_domain_ops ar724x_pci_domain_ops = {
++ .xlate = irq_domain_xlate_onecell,
++ .map = ar724x_pci_irq_map,
++};
++
+ static void ar724x_pci_irq_init(struct ar724x_pci_controller *apc,
+ int id)
+ {
+ void __iomem *base;
+- int i;
+
+ base = apc->ctrl_base;
+
+ __raw_writel(0, base + AR724X_PCI_REG_INT_MASK);
+ __raw_writel(0, base + AR724X_PCI_REG_INT_STATUS);
+
+- apc->irq_base = ATH79_PCI_IRQ_BASE + (id * AR724X_PCI_IRQ_COUNT);
+-
+- for (i = apc->irq_base;
+- i < apc->irq_base + AR724X_PCI_IRQ_COUNT; i++) {
+- irq_set_chip_and_handler(i, &ar724x_pci_irq_chip,
+- handle_level_irq);
+- irq_set_chip_data(i, apc);
+- }
+-
++ apc->domain = irq_domain_add_linear(apc->np, 2,
++ &ar724x_pci_domain_ops, apc);
+ irq_set_chained_handler_and_data(apc->irq, ar724x_pci_irq_handler,
+ apc);
+ }
+@@ -391,29 +399,11 @@ static int ar724x_pci_probe(struct platf
+ if (apc->irq < 0)
+ return -EINVAL;
+
+- res = platform_get_resource_byname(pdev, IORESOURCE_IO, "io_base");
+- if (!res)
+- return -EINVAL;
+-
+- apc->io_res.parent = res;
+- apc->io_res.name = "PCI IO space";
+- apc->io_res.start = res->start;
+- apc->io_res.end = res->end;
+- apc->io_res.flags = IORESOURCE_IO;
+-
+- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem_base");
+- if (!res)
+- return -EINVAL;
+-
+- apc->mem_res.parent = res;
+- apc->mem_res.name = "PCI memory space";
+- apc->mem_res.start = res->start;
+- apc->mem_res.end = res->end;
+- apc->mem_res.flags = IORESOURCE_MEM;
+-
++ apc->np = pdev->dev.of_node;
+ apc->pci_controller.pci_ops = &ar724x_pci_ops;
+ apc->pci_controller.io_resource = &apc->io_res;
+ apc->pci_controller.mem_resource = &apc->mem_res;
++ pci_load_of_ranges(&apc->pci_controller, pdev->dev.of_node);
+
+ /*
+ * Do the full PCIE Root Complex Initialization Sequence if the PCIe
+@@ -435,10 +425,16 @@ static int ar724x_pci_probe(struct platf
+ return 0;
+ }
+
++static const struct of_device_id ar724x_pci_ids[] = {
++ { .compatible = "qcom,ar7240-pci" },
++ {},
++};
++
+ static struct platform_driver ar724x_pci_driver = {
+ .probe = ar724x_pci_probe,
+ .driver = {
+ .name = "ar724x-pci",
++ .of_match_table = of_match_ptr(ar724x_pci_ids),
+ },
+ };
+
--- /dev/null
+From 3fc8585cf76022dba7496627074d42af88c30718 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Sat, 23 Jun 2018 15:16:55 +0200
+Subject: [PATCH 32/33] MIPS: ath79: sanitize symbols
+
+We no longer need to select which SoCs are supported as the whole arch
+code is always built. So lets drop all the SoC symbols
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ arch/mips/Kconfig | 2 ++
+ arch/mips/ath79/Kconfig | 44 +++++---------------------------------------
+ arch/mips/pci/Makefile | 2 +-
+ 3 files changed, 8 insertions(+), 40 deletions(-)
+
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -216,6 +216,8 @@ config ATH79
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_MIPS16
+ select SYS_SUPPORTS_ZBOOT_UART_PROM
++ select HAVE_PCI
++ select USB_ARCH_HAS_EHCI
+ select USE_OF
+ select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
+ help
+--- a/arch/mips/ath79/Kconfig
++++ b/arch/mips/ath79/Kconfig
+@@ -1,48 +1,14 @@
+ # SPDX-License-Identifier: GPL-2.0
+ if ATH79
+
+-config SOC_AR71XX
+- select HAVE_PCI
+- def_bool n
+-
+-config SOC_AR724X
+- select HAVE_PCI
+- select PCI_AR724X if PCI
+- def_bool n
+-
+-config SOC_AR913X
+- def_bool n
+-
+-config SOC_AR933X
+- def_bool n
+-
+-config SOC_AR934X
+- select HAVE_PCI
+- select PCI_AR724X if PCI
+- def_bool n
+-
+-config SOC_QCA955X
+- select HAVE_PCI
+- select PCI_AR724X if PCI
++config PCI_AR71XX
++ bool "PCI support for AR7100 type SoCs"
++ depends on PCI
+ def_bool n
+
+ config PCI_AR724X
+- def_bool n
+-
+-config ATH79_DEV_GPIO_BUTTONS
+- def_bool n
+-
+-config ATH79_DEV_LEDS_GPIO
+- def_bool n
+-
+-config ATH79_DEV_SPI
+- def_bool n
+-
+-config ATH79_DEV_USB
+- def_bool n
+-
+-config ATH79_DEV_WMAC
+- depends on (SOC_AR913X || SOC_AR933X || SOC_AR934X || SOC_QCA955X)
++ bool "PCI support for AR724x type SoCs"
++ depends on PCI
+ def_bool n
+
+ endif
+--- a/arch/mips/pci/Makefile
++++ b/arch/mips/pci/Makefile
+@@ -23,7 +23,7 @@ obj-$(CONFIG_BCM63XX) += pci-bcm63xx.o
+ ops-bcm63xx.o
+ obj-$(CONFIG_MIPS_ALCHEMY) += pci-alchemy.o
+ obj-$(CONFIG_PCI_AR2315) += pci-ar2315.o
+-obj-$(CONFIG_SOC_AR71XX) += pci-ar71xx.o
++obj-$(CONFIG_PCI_AR71XX) += pci-ar71xx.o
+ obj-$(CONFIG_PCI_AR724X) += pci-ar724x.o
+ obj-$(CONFIG_MIPS_PCI_VIRTIO) += pci-virtio-guest.o
+ obj-$(CONFIG_PCI_XTALK_BRIDGE) += pci-xtalk-bridge.o
--- /dev/null
+From c4e197bbcecc7233aa9e553e7047fa50e4e1fe77 Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Mon, 25 Jun 2018 15:52:34 +0200
+Subject: [PATCH 33/33] spi: ath79: drop pdata support
+
+The target is being converted to pure OF. We can therefore drop all of the
+platform data code from the driver.
+
+Cc: linux-spi@vger.kernel.org
+Acked-by: Mark Brown <broonie@kernel.org>
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ include/linux/platform_data/spi-ath79.h | 16 -------------------
+ drivers/spi/spi-ath79.c | 8 --------
+ 2 files changed, 27 deletions(-)
+ delete mode 100644 arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
+
+--- a/include/linux/platform_data/spi-ath79.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-/* SPDX-License-Identifier: GPL-2.0-only */
+-/*
+- * Platform data definition for Atheros AR71XX/AR724X/AR913X SPI controller
+- *
+- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+- */
+-
+-#ifndef _ATH79_SPI_PLATFORM_H
+-#define _ATH79_SPI_PLATFORM_H
+-
+-struct ath79_spi_platform_data {
+- unsigned bus_num;
+- unsigned num_chipselect;
+-};
+-
+-#endif /* _ATH79_SPI_PLATFORM_H */
+--- a/drivers/spi/spi-ath79.c
++++ b/drivers/spi/spi-ath79.c
+@@ -19,7 +19,6 @@
+ #include <linux/bitops.h>
+ #include <linux/clk.h>
+ #include <linux/err.h>
+-#include <linux/platform_data/spi-ath79.h>
+
+ #define DRV_NAME "ath79-spi"
+
+@@ -138,7 +137,6 @@ static int ath79_spi_probe(struct platfo
+ {
+ struct spi_master *master;
+ struct ath79_spi *sp;
+- struct ath79_spi_platform_data *pdata;
+ unsigned long rate;
+ int ret;
+
+@@ -152,16 +150,10 @@ static int ath79_spi_probe(struct platfo
+ master->dev.of_node = pdev->dev.of_node;
+ platform_set_drvdata(pdev, sp);
+
+- pdata = dev_get_platdata(&pdev->dev);
+-
+ master->use_gpio_descriptors = true;
+ master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
+ master->setup = spi_bitbang_setup;
+ master->cleanup = spi_bitbang_cleanup;
+- if (pdata) {
+- master->bus_num = pdata->bus_num;
+- master->num_chipselect = pdata->num_chipselect;
+- }
+
+ sp->bitbang.master = master;
+ sp->bitbang.chipselect = ath79_spi_chipselect;
--- /dev/null
+--- a/arch/mips/ath79/common.c
++++ b/arch/mips/ath79/common.c
+@@ -31,11 +31,13 @@ EXPORT_SYMBOL_GPL(ath79_ddr_freq);
+
+ enum ath79_soc_type ath79_soc;
+ unsigned int ath79_soc_rev;
++EXPORT_SYMBOL_GPL(ath79_soc_rev);
+
+ void __iomem *ath79_pll_base;
+ void __iomem *ath79_reset_base;
+ EXPORT_SYMBOL_GPL(ath79_reset_base);
+-static void __iomem *ath79_ddr_base;
++void __iomem *ath79_ddr_base;
++EXPORT_SYMBOL_GPL(ath79_ddr_base);
+ static void __iomem *ath79_ddr_wb_flush_base;
+ static void __iomem *ath79_ddr_pci_win_base;
+
+--- a/arch/mips/include/asm/mach-ath79/ath79.h
++++ b/arch/mips/include/asm/mach-ath79/ath79.h
+@@ -149,6 +149,7 @@ void ath79_ddr_wb_flush(unsigned int reg
+ void ath79_ddr_set_pci_windows(void);
+
+ extern void __iomem *ath79_pll_base;
++extern void __iomem *ath79_ddr_base;
+ extern void __iomem *ath79_reset_base;
+
+ static inline void ath79_pll_wr(unsigned reg, u32 val)
--- /dev/null
+From 4267880319bc1a2270d352e0ded6d6386242a7ef Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Tue, 12 Aug 2014 20:49:27 +0200
+Subject: [PATCH 24/53] GPIO: add named gpio exports
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ drivers/gpio/gpiolib-of.c | 68 +++++++++++++++++++++++++++++++++++++++++
+ drivers/gpio/gpiolib-sysfs.c | 10 +++++-
+ include/asm-generic/gpio.h | 6 ++++
+ include/linux/gpio/consumer.h | 8 +++++
+ 4 files changed, 91 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpio/gpiolib-of.c
++++ b/drivers/gpio/gpiolib-of.c
+@@ -19,6 +19,8 @@
+ #include <linux/pinctrl/pinctrl.h>
+ #include <linux/slab.h>
+ #include <linux/gpio/machine.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
+
+ #include "gpiolib.h"
+ #include "gpiolib-of.h"
+@@ -895,3 +897,68 @@ void of_gpiochip_remove(struct gpio_chip
+ gpiochip_remove_pin_ranges(chip);
+ of_node_put(chip->of_node);
+ }
++
++static struct of_device_id gpio_export_ids[] = {
++ { .compatible = "gpio-export" },
++ { /* sentinel */ }
++};
++
++static int of_gpio_export_probe(struct platform_device *pdev)
++{
++ struct device_node *np = pdev->dev.of_node;
++ struct device_node *cnp;
++ u32 val;
++ int nb = 0;
++
++ for_each_child_of_node(np, cnp) {
++ const char *name = NULL;
++ int gpio;
++ bool dmc;
++ int max_gpio = 1;
++ int i;
++
++ of_property_read_string(cnp, "gpio-export,name", &name);
++
++ if (!name)
++ max_gpio = of_gpio_count(cnp);
++
++ for (i = 0; i < max_gpio; i++) {
++ unsigned flags = 0;
++ enum of_gpio_flags of_flags;
++
++ gpio = of_get_gpio_flags(cnp, i, &of_flags);
++ if (!gpio_is_valid(gpio))
++ return gpio;
++
++ if (of_flags == OF_GPIO_ACTIVE_LOW)
++ flags |= GPIOF_ACTIVE_LOW;
++
++ if (!of_property_read_u32(cnp, "gpio-export,output", &val))
++ flags |= val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW;
++ else
++ flags |= GPIOF_IN;
++
++ if (devm_gpio_request_one(&pdev->dev, gpio, flags, name ? name : of_node_full_name(np)))
++ continue;
++
++ dmc = of_property_read_bool(cnp, "gpio-export,direction_may_change");
++ gpio_export_with_name(gpio, dmc, name);
++ nb++;
++ }
++ }
++
++ dev_info(&pdev->dev, "%d gpio(s) exported\n", nb);
++
++ return 0;
++}
++
++static struct platform_driver gpio_export_driver = {
++ .driver = {
++ .name = "gpio-export",
++ .owner = THIS_MODULE,
++ .of_match_table = of_match_ptr(gpio_export_ids),
++ },
++ .probe = of_gpio_export_probe,
++};
++
++module_platform_driver(gpio_export_driver);
+--- a/drivers/gpio/gpiolib-sysfs.c
++++ b/drivers/gpio/gpiolib-sysfs.c
+@@ -563,7 +563,7 @@ static struct class gpio_class = {
+ *
+ * Returns zero on success, else an error.
+ */
+-int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
++int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name)
+ {
+ struct gpio_chip *chip;
+ struct gpio_device *gdev;
+@@ -625,6 +625,8 @@ int gpiod_export(struct gpio_desc *desc,
+ offset = gpio_chip_hwgpio(desc);
+ if (chip->names && chip->names[offset])
+ ioname = chip->names[offset];
++ if (name)
++ ioname = name;
+
+ dev = device_create_with_groups(&gpio_class, &gdev->dev,
+ MKDEV(0, 0), data, gpio_groups,
+@@ -646,6 +648,12 @@ err_unlock:
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
+ return status;
+ }
++EXPORT_SYMBOL_GPL(__gpiod_export);
++
++int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
++{
++ return __gpiod_export(desc, direction_may_change, NULL);
++}
+ EXPORT_SYMBOL_GPL(gpiod_export);
+
+ static int match_export(struct device *dev, const void *desc)
+--- a/include/asm-generic/gpio.h
++++ b/include/asm-generic/gpio.h
+@@ -127,6 +127,12 @@ static inline int gpio_export(unsigned g
+ return gpiod_export(gpio_to_desc(gpio), direction_may_change);
+ }
+
++int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name);
++static inline int gpio_export_with_name(unsigned gpio, bool direction_may_change, const char *name)
++{
++ return __gpiod_export(gpio_to_desc(gpio), direction_may_change, name);
++}
++
+ static inline int gpio_export_link(struct device *dev, const char *name,
+ unsigned gpio)
+ {
+--- a/include/linux/gpio/consumer.h
++++ b/include/linux/gpio/consumer.h
+@@ -661,6 +661,7 @@ static inline void devm_acpi_dev_remove_
+
+ #if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
+
++int _gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name);
+ int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
+ int gpiod_export_link(struct device *dev, const char *name,
+ struct gpio_desc *desc);
+@@ -668,6 +669,13 @@ void gpiod_unexport(struct gpio_desc *de
+
+ #else /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
+
++static inline int _gpiod_export(struct gpio_desc *desc,
++ bool direction_may_change,
++ const char *name)
++{
++ return -ENOSYS;
++}
++
+ static inline int gpiod_export(struct gpio_desc *desc,
+ bool direction_may_change)
+ {
--- /dev/null
+--- a/arch/mips/pci/pci-ar71xx.c
++++ b/arch/mips/pci/pci-ar71xx.c
+@@ -51,11 +51,9 @@
+ struct ar71xx_pci_controller {
+ struct device_node *np;
+ void __iomem *cfg_base;
+- int irq;
+ struct pci_controller pci_ctrl;
+ struct resource io_res;
+ struct resource mem_res;
+- struct irq_domain *domain;
+ };
+
+ /* Byte lane enable bits */
+@@ -227,104 +225,6 @@ static struct pci_ops ar71xx_pci_ops = {
+ .write = ar71xx_pci_write_config,
+ };
+
+-static void ar71xx_pci_irq_handler(struct irq_desc *desc)
+-{
+- void __iomem *base = ath79_reset_base;
+- struct irq_chip *chip = irq_desc_get_chip(desc);
+- struct ar71xx_pci_controller *apc = irq_desc_get_handler_data(desc);
+- u32 pending;
+-
+- chained_irq_enter(chip, desc);
+- pending = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_STATUS) &
+- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-
+- if (pending & AR71XX_PCI_INT_DEV0)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 1));
+-
+- else if (pending & AR71XX_PCI_INT_DEV1)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 2));
+-
+- else if (pending & AR71XX_PCI_INT_DEV2)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 3));
+-
+- else if (pending & AR71XX_PCI_INT_CORE)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 4));
+-
+- else
+- spurious_interrupt();
+- chained_irq_exit(chip, desc);
+-}
+-
+-static void ar71xx_pci_irq_unmask(struct irq_data *d)
+-{
+- struct ar71xx_pci_controller *apc;
+- unsigned int irq;
+- void __iomem *base = ath79_reset_base;
+- u32 t;
+-
+- apc = irq_data_get_irq_chip_data(d);
+- irq = irq_linear_revmap(apc->domain, d->irq);
+-
+- t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+- __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-
+- /* flush write */
+- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-}
+-
+-static void ar71xx_pci_irq_mask(struct irq_data *d)
+-{
+- struct ar71xx_pci_controller *apc;
+- unsigned int irq;
+- void __iomem *base = ath79_reset_base;
+- u32 t;
+-
+- apc = irq_data_get_irq_chip_data(d);
+- irq = irq_linear_revmap(apc->domain, d->irq);
+-
+- t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+- __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-
+- /* flush write */
+- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-}
+-
+-static struct irq_chip ar71xx_pci_irq_chip = {
+- .name = "AR71XX PCI",
+- .irq_mask = ar71xx_pci_irq_mask,
+- .irq_unmask = ar71xx_pci_irq_unmask,
+- .irq_mask_ack = ar71xx_pci_irq_mask,
+-};
+-
+-static int ar71xx_pci_irq_map(struct irq_domain *d,
+- unsigned int irq, irq_hw_number_t hw)
+-{
+- struct ar71xx_pci_controller *apc = d->host_data;
+-
+- irq_set_chip_and_handler(irq, &ar71xx_pci_irq_chip, handle_level_irq);
+- irq_set_chip_data(irq, apc);
+-
+- return 0;
+-}
+-
+-static const struct irq_domain_ops ar71xx_pci_domain_ops = {
+- .xlate = irq_domain_xlate_onecell,
+- .map = ar71xx_pci_irq_map,
+-};
+-
+-static void ar71xx_pci_irq_init(struct ar71xx_pci_controller *apc)
+-{
+- void __iomem *base = ath79_reset_base;
+-
+- __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+- __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_STATUS);
+-
+- apc->domain = irq_domain_add_linear(apc->np, AR71XX_PCI_IRQ_COUNT,
+- &ar71xx_pci_domain_ops, apc);
+- irq_set_chained_handler_and_data(apc->irq, ar71xx_pci_irq_handler,
+- apc);
+-}
+-
+ static void ar71xx_pci_reset(void)
+ {
+ ath79_device_reset_set(AR71XX_RESET_PCI_BUS | AR71XX_RESET_PCI_CORE);
+@@ -358,10 +258,6 @@ static int ar71xx_pci_probe(struct platf
+ if (IS_ERR(apc->cfg_base))
+ return PTR_ERR(apc->cfg_base);
+
+- apc->irq = platform_get_irq(pdev, 0);
+- if (apc->irq < 0)
+- return -EINVAL;
+-
+ ar71xx_pci_reset();
+
+ /* setup COMMAND register */
+@@ -372,8 +268,6 @@ static int ar71xx_pci_probe(struct platf
+ /* clear bus errors */
+ ar71xx_pci_check_error(apc, 1);
+
+- ar71xx_pci_irq_init(apc);
+-
+ apc->np = pdev->dev.of_node;
+ apc->pci_ctrl.pci_ops = &ar71xx_pci_ops;
+ apc->pci_ctrl.mem_resource = &apc->mem_res;
--- /dev/null
+commit f3ffac90bc7266b7d917616f3233f58e8c08a196
+Author: Christian Lamparter <chunkeey@gmail.com>
+Date: Fri Aug 10 23:24:47 2018 +0200
+
+ ath79: gmac: add parsers for rxd(v)- and tx(d|en)-delay for AR9344
+
+ Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
+
+--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
++++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+@@ -1226,6 +1226,10 @@
+ #define AR934X_ETH_CFG_RDV_DELAY BIT(16)
+ #define AR934X_ETH_CFG_RDV_DELAY_MASK 0x3
+ #define AR934X_ETH_CFG_RDV_DELAY_SHIFT 16
++#define AR934X_ETH_CFG_TXD_DELAY_MASK 0x3
++#define AR934X_ETH_CFG_TXD_DELAY_SHIFT 18
++#define AR934X_ETH_CFG_TXE_DELAY_MASK 0x3
++#define AR934X_ETH_CFG_TXE_DELAY_SHIFT 20
+
+ /*
+ * QCA953X GMAC Interface
--- /dev/null
+From 60efe35257b063ce584968f9f80b437030ce6ba6 Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Mon, 18 Mar 2019 00:54:06 +0100
+Subject: [PATCH] MIPS: ath79: add missing QCA955x GMAC registers
+
+This adds missing GMAC register definitions for the Qualcomm Atheros
+QCA955X series MIPS SoCs.
+
+They originate from the platforms U-Boot code and the AVM FRITZ!WLAN
+Repeater 450E's GPL tarball.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ .../mips/include/asm/mach-ath79/ar71xx_regs.h | 54 +++++++++++++++++++
+ 1 file changed, 54 insertions(+)
+
+--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
++++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+@@ -1246,7 +1246,12 @@
+ */
+
+ #define QCA955X_GMAC_REG_ETH_CFG 0x00
++#define QCA955X_GMAC_REG_SGMII_RESET 0x14
+ #define QCA955X_GMAC_REG_SGMII_SERDES 0x18
++#define QCA955X_GMAC_REG_MR_AN_CONTROL 0x1c
++#define QCA955X_GMAC_REG_MR_AN_STATUS 0x20
++#define QCA955X_GMAC_REG_SGMII_CONFIG 0x34
++#define QCA955X_GMAC_REG_SGMII_DEBUG 0x58
+
+ #define QCA955X_ETH_CFG_RGMII_EN BIT(0)
+ #define QCA955X_ETH_CFG_MII_GE0 BIT(1)
+@@ -1268,9 +1273,58 @@
+ #define QCA955X_ETH_CFG_TXE_DELAY_MASK 0x3
+ #define QCA955X_ETH_CFG_TXE_DELAY_SHIFT 20
+
++#define QCA955X_SGMII_RESET_RX_CLK_N_RESET 0
++#define QCA955X_SGMII_RESET_RX_CLK_N BIT(0)
++#define QCA955X_SGMII_RESET_TX_CLK_N BIT(1)
++#define QCA955X_SGMII_RESET_RX_125M_N BIT(2)
++#define QCA955X_SGMII_RESET_TX_125M_N BIT(3)
++#define QCA955X_SGMII_RESET_HW_RX_125M_N BIT(4)
++
+ #define QCA955X_SGMII_SERDES_LOCK_DETECT_STATUS BIT(15)
+ #define QCA955X_SGMII_SERDES_RES_CALIBRATION_SHIFT 23
+ #define QCA955X_SGMII_SERDES_RES_CALIBRATION_MASK 0xf
++
++#define QCA955X_MR_AN_CONTROL_SPEED_SEL1 BIT(6)
++#define QCA955X_MR_AN_CONTROL_DUPLEX_MODE BIT(8)
++#define QCA955X_MR_AN_CONTROL_RESTART_AN BIT(9)
++#define QCA955X_MR_AN_CONTROL_POWER_DOWN BIT(11)
++#define QCA955X_MR_AN_CONTROL_AN_ENABLE BIT(12)
++#define QCA955X_MR_AN_CONTROL_SPEED_SEL0 BIT(13)
++#define QCA955X_MR_AN_CONTROL_LOOPBACK BIT(14)
++#define QCA955X_MR_AN_CONTROL_PHY_RESET BIT(15)
++
++#define QCA955X_MR_AN_STATUS_EXT_CAP BIT(0)
++#define QCA955X_MR_AN_STATUS_LINK_UP BIT(2)
++#define QCA955X_MR_AN_STATUS_AN_ABILITY BIT(3)
++#define QCA955X_MR_AN_STATUS_REMOTE_FAULT BIT(4)
++#define QCA955X_MR_AN_STATUS_AN_COMPLETE BIT(5)
++#define QCA955X_MR_AN_STATUS_NO_PREAMBLE BIT(6)
++#define QCA955X_MR_AN_STATUS_BASE_PAGE BIT(7)
++
++#define QCA955X_SGMII_CONFIG_MODE_CTRL_SHIFT 0
++#define QCA955X_SGMII_CONFIG_MODE_CTRL_MASK 0x7
++#define QCA955X_SGMII_CONFIG_ENABLE_SGMII_TX_PAUSE BIT(3)
++#define QCA955X_SGMII_CONFIG_MR_REG4_CHANGED BIT(4)
++#define QCA955X_SGMII_CONFIG_FORCE_SPEED BIT(5)
++#define QCA955X_SGMII_CONFIG_SPEED_SHIFT 6
++#define QCA955X_SGMII_CONFIG_SPEED_MASK 0xc0
++#define QCA955X_SGMII_CONFIG_REMOTE_PHY_LOOPBACK BIT(8)
++#define QCA955X_SGMII_CONFIG_NEXT_PAGE_LOADED BIT(9)
++#define QCA955X_SGMII_CONFIG_MDIO_ENABLE BIT(10)
++#define QCA955X_SGMII_CONFIG_MDIO_PULSE BIT(11)
++#define QCA955X_SGMII_CONFIG_MDIO_COMPLETE BIT(12)
++#define QCA955X_SGMII_CONFIG_PRBS_ENABLE BIT(13)
++#define QCA955X_SGMII_CONFIG_BERT_ENABLE BIT(14)
++
++#define QCA955X_SGMII_DEBUG_TX_STATE_MASK 0xff
++#define QCA955X_SGMII_DEBUG_TX_STATE_SHIFT 0
++#define QCA955X_SGMII_DEBUG_RX_STATE_MASK 0xff00
++#define QCA955X_SGMII_DEBUG_RX_STATE_SHIFT 8
++#define QCA955X_SGMII_DEBUG_RX_SYNC_STATE_MASK 0xff0000
++#define QCA955X_SGMII_DEBUG_RX_SYNC_STATE_SHIFT 16
++#define QCA955X_SGMII_DEBUG_ARB_STATE_MASK 0xf000000
++#define QCA955X_SGMII_DEBUG_ARB_STATE_SHIFT 24
++
+ /*
+ * QCA956X GMAC Interface
+ */
--- /dev/null
+--- a/arch/mips/ath79/clock.c
++++ b/arch/mips/ath79/clock.c
+@@ -40,6 +40,7 @@ static const char * const clk_names[ATH7
+ [ATH79_CLK_AHB] = "ahb",
+ [ATH79_CLK_REF] = "ref",
+ [ATH79_CLK_MDIO] = "mdio",
++ [ATH79_CLK_UART1] = "uart1",
+ };
+
+ static const char * __init ath79_clk_name(int type)
+@@ -344,6 +345,9 @@ static void __init ar934x_clocks_init(vo
+ if (clk_ctrl & AR934X_PLL_SWITCH_CLOCK_CONTROL_MDIO_CLK_SEL)
+ ath79_set_clk(ATH79_CLK_MDIO, 100 * 1000 * 1000);
+
++ if (clk_ctrl & AR934X_PLL_SWITCH_CLOCK_CONTROL_UART1_CLK_SEL)
++ ath79_set_clk(ATH79_CLK_UART1, 100 * 1000 * 1000);
++
+ iounmap(dpll_base);
+ }
+
+@@ -649,6 +653,9 @@ static void __init ath79_clocks_init_dt(
+ if (!clks[ATH79_CLK_MDIO])
+ clks[ATH79_CLK_MDIO] = clks[ATH79_CLK_REF];
+
++ if (!clks[ATH79_CLK_UART1])
++ clks[ATH79_CLK_UART1] = clks[ATH79_CLK_REF];
++
+ if (of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data)) {
+ pr_err("%pOF: could not register clk provider\n", np);
+ goto err_iounmap;
+--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
++++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+@@ -348,6 +348,7 @@
+ #define AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL BIT(24)
+
+ #define AR934X_PLL_SWITCH_CLOCK_CONTROL_MDIO_CLK_SEL BIT(6)
++#define AR934X_PLL_SWITCH_CLOCK_CONTROL_UART1_CLK_SEL BIT(7)
+
+ #define QCA953X_PLL_CPU_CONFIG_REG 0x00
+ #define QCA953X_PLL_DDR_CONFIG_REG 0x04
+--- a/include/dt-bindings/clock/ath79-clk.h
++++ b/include/dt-bindings/clock/ath79-clk.h
+@@ -11,7 +11,8 @@
+ #define ATH79_CLK_AHB 2
+ #define ATH79_CLK_REF 3
+ #define ATH79_CLK_MDIO 4
++#define ATH79_CLK_UART1 5
+
+-#define ATH79_CLK_END 5
++#define ATH79_CLK_END 6
+
+ #endif /* __DT_BINDINGS_ATH79_CLK_H */
--- /dev/null
+HACK: register the GPIO driver earlier to ensure that gpio_request calls
+from mach files succeed.
+
+--- a/drivers/gpio/gpio-ath79.c
++++ b/drivers/gpio/gpio-ath79.c
+@@ -310,7 +310,11 @@ static struct platform_driver ath79_gpio
+ .probe = ath79_gpio_probe,
+ };
+
+-module_platform_driver(ath79_gpio_driver);
++static int __init ath79_gpio_init(void)
++{
++ return platform_driver_register(&ath79_gpio_driver);
++}
++postcore_initcall(ath79_gpio_init);
+
+ MODULE_DESCRIPTION("Atheros AR71XX/AR724X/AR913X GPIO API support");
+ MODULE_LICENSE("GPL v2");
--- /dev/null
+From 7e161c423a232ef7ddf6c11b09ebe471dd5a23cf Mon Sep 17 00:00:00 2001
+From: Chuanhong Guo <gch981213@gmail.com>
+Date: Wed, 5 Feb 2020 18:25:37 +0800
+Subject: [PATCH v4 1/2] spi: add driver for ar934x spi controller
+
+This patch adds driver for SPI controller found in Qualcomm Atheros
+AR934x/QCA95xx SoCs.
+This controller is a superset of the already supported qca,ar7100-spi.
+Besides the bit-bang mode in spi-ath79.c, this new controller added
+a new "shift register" mode, allowing faster spi operations.
+
+Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
+---
+ drivers/spi/Kconfig | 7 ++
+ drivers/spi/Makefile | 1 +
+ drivers/spi/spi-ar934x.c | 235 +++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 243 insertions(+)
+ create mode 100644 drivers/spi/spi-ar934x.c
+
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -62,6 +62,13 @@ config SPI_ALTERA
+ help
+ This is the driver for the Altera SPI Controller.
+
++config SPI_AR934X
++ tristate "Qualcomm Atheros AR934X/QCA95XX SPI controller driver"
++ depends on ATH79 || COMPILE_TEST
++ help
++ This enables support for the SPI controller present on the
++ Qualcomm Atheros AR934X/QCA95XX SoCs.
++
+ config SPI_ATH79
+ tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
+ depends on ATH79 || COMPILE_TEST
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -14,6 +14,7 @@ obj-$(CONFIG_SPI_LOOPBACK_TEST) += spi-
+
+ # SPI master controller drivers (bus)
+ obj-$(CONFIG_SPI_ALTERA) += spi-altera.o
++obj-$(CONFIG_SPI_AR934X) += spi-ar934x.o
+ obj-$(CONFIG_SPI_ARMADA_3700) += spi-armada-3700.o
+ obj-$(CONFIG_SPI_ATMEL) += spi-atmel.o
+ obj-$(CONFIG_SPI_ATMEL_QUADSPI) += atmel-quadspi.o
+--- /dev/null
++++ b/drivers/spi/spi-ar934x.c
+@@ -0,0 +1,235 @@
++// SPDX-License-Identifier: GPL-2.0
++//
++// SPI controller driver for Qualcomm Atheros AR934x/QCA95xx SoCs
++//
++// Copyright (C) 2020 Chuanhong Guo <gch981213@gmail.com>
++//
++// Based on spi-mt7621.c:
++// Copyright (C) 2011 Sergiy <piratfm@gmail.com>
++// Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org>
++// Copyright (C) 2014-2015 Felix Fietkau <nbd@nbd.name>
++
++#include <linux/clk.h>
++#include <linux/io.h>
++#include <linux/iopoll.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of_device.h>
++#include <linux/spi/spi.h>
++
++#define DRIVER_NAME "spi-ar934x"
++
++#define AR934X_SPI_REG_FS 0x00
++#define AR934X_SPI_ENABLE BIT(0)
++
++#define AR934X_SPI_REG_IOC 0x08
++#define AR934X_SPI_IOC_INITVAL 0x70000
++
++#define AR934X_SPI_REG_CTRL 0x04
++#define AR934X_SPI_CLK_MASK GENMASK(5, 0)
++
++#define AR934X_SPI_DATAOUT 0x10
++
++#define AR934X_SPI_REG_SHIFT_CTRL 0x14
++#define AR934X_SPI_SHIFT_EN BIT(31)
++#define AR934X_SPI_SHIFT_CS(n) BIT(28 + (n))
++#define AR934X_SPI_SHIFT_TERM 26
++#define AR934X_SPI_SHIFT_VAL(cs, term, count) \
++ (AR934X_SPI_SHIFT_EN | AR934X_SPI_SHIFT_CS(cs) | \
++ (term) << AR934X_SPI_SHIFT_TERM | (count))
++
++#define AR934X_SPI_DATAIN 0x18
++
++struct ar934x_spi {
++ struct spi_controller *ctlr;
++ void __iomem *base;
++ struct clk *clk;
++ unsigned int clk_freq;
++};
++
++static inline int ar934x_spi_clk_div(struct ar934x_spi *sp, unsigned int freq)
++{
++ int div = DIV_ROUND_UP(sp->clk_freq, freq * 2) - 1;
++
++ if (div < 0)
++ return 0;
++ else if (div > AR934X_SPI_CLK_MASK)
++ return -EINVAL;
++ else
++ return div;
++}
++
++static int ar934x_spi_setup(struct spi_device *spi)
++{
++ struct ar934x_spi *sp = spi_controller_get_devdata(spi->master);
++
++ if ((spi->max_speed_hz == 0) ||
++ (spi->max_speed_hz > (sp->clk_freq / 2))) {
++ spi->max_speed_hz = sp->clk_freq / 2;
++ } else if (spi->max_speed_hz < (sp->clk_freq / 128)) {
++ dev_err(&spi->dev, "spi clock is too low\n");
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++static int ar934x_spi_transfer_one_message(struct spi_controller *master,
++ struct spi_message *m)
++{
++ struct ar934x_spi *sp = spi_controller_get_devdata(master);
++ struct spi_transfer *t = NULL;
++ struct spi_device *spi = m->spi;
++ unsigned long trx_done, trx_cur;
++ int stat = 0;
++ u8 term = 0;
++ int div, i;
++ u32 reg;
++ const u8 *tx_buf;
++ u8 *buf;
++
++ m->actual_length = 0;
++ list_for_each_entry(t, &m->transfers, transfer_list) {
++ if (t->speed_hz)
++ div = ar934x_spi_clk_div(sp, t->speed_hz);
++ else
++ div = ar934x_spi_clk_div(sp, spi->max_speed_hz);
++ if (div < 0) {
++ stat = -EIO;
++ goto msg_done;
++ }
++
++ reg = ioread32(sp->base + AR934X_SPI_REG_CTRL);
++ reg &= ~AR934X_SPI_CLK_MASK;
++ reg |= div;
++ iowrite32(reg, sp->base + AR934X_SPI_REG_CTRL);
++ iowrite32(0, sp->base + AR934X_SPI_DATAOUT);
++
++ for (trx_done = 0; trx_done < t->len; trx_done += 4) {
++ trx_cur = t->len - trx_done;
++ if (trx_cur > 4)
++ trx_cur = 4;
++ else if (list_is_last(&t->transfer_list, &m->transfers))
++ term = 1;
++
++ if (t->tx_buf) {
++ tx_buf = t->tx_buf + trx_done;
++ reg = tx_buf[0];
++ for (i = 1; i < trx_cur; i++)
++ reg = reg << 8 | tx_buf[i];
++ iowrite32(reg, sp->base + AR934X_SPI_DATAOUT);
++ }
++
++ reg = AR934X_SPI_SHIFT_VAL(spi->chip_select, term,
++ trx_cur * 8);
++ iowrite32(reg, sp->base + AR934X_SPI_REG_SHIFT_CTRL);
++ stat = readl_poll_timeout(
++ sp->base + AR934X_SPI_REG_SHIFT_CTRL, reg,
++ !(reg & AR934X_SPI_SHIFT_EN), 0, 5);
++ if (stat < 0)
++ goto msg_done;
++
++ if (t->rx_buf) {
++ reg = ioread32(sp->base + AR934X_SPI_DATAIN);
++ buf = t->rx_buf + trx_done;
++ for (i = 0; i < trx_cur; i++) {
++ buf[trx_cur - i - 1] = reg & 0xff;
++ reg >>= 8;
++ }
++ }
++ }
++ m->actual_length += t->len;
++ }
++
++msg_done:
++ m->status = stat;
++ spi_finalize_current_message(master);
++
++ return 0;
++}
++
++static const struct of_device_id ar934x_spi_match[] = {
++ { .compatible = "qca,ar934x-spi" },
++ {},
++};
++MODULE_DEVICE_TABLE(of, ar934x_spi_match);
++
++static int ar934x_spi_probe(struct platform_device *pdev)
++{
++ struct spi_controller *ctlr;
++ struct ar934x_spi *sp;
++ void __iomem *base;
++ struct clk *clk;
++ int ret;
++
++ base = devm_platform_ioremap_resource(pdev, 0);
++ if (IS_ERR(base))
++ return PTR_ERR(base);
++
++ clk = devm_clk_get(&pdev->dev, NULL);
++ if (IS_ERR(clk)) {
++ dev_err(&pdev->dev, "failed to get clock\n");
++ return PTR_ERR(clk);
++ }
++
++ ret = clk_prepare_enable(clk);
++ if (ret)
++ return ret;
++
++ ctlr = spi_alloc_master(&pdev->dev, sizeof(*sp));
++ if (!ctlr) {
++ dev_info(&pdev->dev, "failed to allocate spi controller\n");
++ return -ENOMEM;
++ }
++
++ /* disable flash mapping and expose spi controller registers */
++ iowrite32(AR934X_SPI_ENABLE, base + AR934X_SPI_REG_FS);
++ /* restore pins to default state: CSn=1 DO=CLK=0 */
++ iowrite32(AR934X_SPI_IOC_INITVAL, base + AR934X_SPI_REG_IOC);
++
++ ctlr->mode_bits = SPI_LSB_FIRST;
++ ctlr->setup = ar934x_spi_setup;
++ ctlr->transfer_one_message = ar934x_spi_transfer_one_message;
++ ctlr->bits_per_word_mask = SPI_BPW_MASK(8);
++ ctlr->dev.of_node = pdev->dev.of_node;
++ ctlr->num_chipselect = 3;
++
++ dev_set_drvdata(&pdev->dev, ctlr);
++
++ sp = spi_controller_get_devdata(ctlr);
++ sp->base = base;
++ sp->clk = clk;
++ sp->clk_freq = clk_get_rate(clk);
++ sp->ctlr = ctlr;
++
++ return devm_spi_register_controller(&pdev->dev, ctlr);
++}
++
++static int ar934x_spi_remove(struct platform_device *pdev)
++{
++ struct spi_controller *ctlr;
++ struct ar934x_spi *sp;
++
++ ctlr = dev_get_drvdata(&pdev->dev);
++ sp = spi_controller_get_devdata(ctlr);
++
++ clk_disable_unprepare(sp->clk);
++
++ return 0;
++}
++
++static struct platform_driver ar934x_spi_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .of_match_table = ar934x_spi_match,
++ },
++ .probe = ar934x_spi_probe,
++ .remove = ar934x_spi_remove,
++};
++
++module_platform_driver(ar934x_spi_driver);
++
++MODULE_DESCRIPTION("SPI controller driver for Qualcomm Atheros AR934x/QCA95xx");
++MODULE_AUTHOR("Chuanhong Guo <gch981213@gmail.com>");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:" DRIVER_NAME);
--- /dev/null
+From patchwork Fri Feb 7 09:53:35 2020
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
+X-Patchwork-Id: 1190470
+Date: Fri, 7 Feb 2020 11:53:35 +0200
+From: Daniel Golle <daniel@makrotopia.org>
+To: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
+Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
+ Jiri Slaby <jslaby@suse.com>,
+ Chuanhong Guo <gch981213@gmail.com>,
+ Eitan Cohen <eitan@neot-semadar.com>,
+ Ori Gofen <origofen@gmail.com>
+Subject: [PATCH] serial: ar933x_uart: set UART_CS_{RX,TX}_READY_ORIDE
+Message-ID: <20200207095335.GA179836@makrotopia.org>
+MIME-Version: 1.0
+Content-Disposition: inline
+Sender: linux-kernel-owner@vger.kernel.org
+Precedence: bulk
+List-ID: <linux-kernel.vger.kernel.org>
+X-Mailing-List: linux-kernel@vger.kernel.org
+
+On AR934x this UART is usually not initialized by the bootloader
+as it is only used as a secondary serial port while the primary
+UART is a newly introduced NS16550-compatible.
+In order to make use of the ar933x-uart on AR934x without RTS/CTS
+hardware flow control, one needs to set the
+UART_CS_{RX,TX}_READY_ORIDE bits as other than on AR933x where this
+UART is used as primary/console, the bootloader on AR934x typically
+doesn't set those bits.
+Setting them explicitely on AR933x should not do any harm, so just
+set them unconditionally.
+
+Tested-by: Chuanhong Guo <gch981213@gmail.com>
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ drivers/tty/serial/ar933x_uart.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/tty/serial/ar933x_uart.c
++++ b/drivers/tty/serial/ar933x_uart.c
+@@ -286,6 +286,10 @@ static void ar933x_uart_set_termios(stru
+ ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
+ AR933X_UART_CS_HOST_INT_EN);
+
++ /* enable RX and TX ready overide */
++ ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
++ AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE);
++
+ /* reenable the UART */
+ ar933x_uart_rmw(up, AR933X_UART_CS_REG,
+ AR933X_UART_CS_IF_MODE_M << AR933X_UART_CS_IF_MODE_S,
+@@ -418,6 +422,10 @@ static int ar933x_uart_startup(struct ua
+ ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
+ AR933X_UART_CS_HOST_INT_EN);
+
++ /* enable RX and TX ready overide */
++ ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
++ AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE);
++
+ /* Enable RX interrupts */
+ up->ier = AR933X_UART_INT_RX_VALID;
+ ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
--- /dev/null
+--- a/drivers/mtd/parsers/Makefile
++++ b/drivers/mtd/parsers/Makefile
+@@ -1,3 +1,4 @@
++obj-$(CONFIG_MTD_PARSER_CYBERTAN) += parser_cybertan.o
+ # SPDX-License-Identifier: GPL-2.0-only
+ obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o
+ obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o
+--- a/drivers/mtd/parsers/Kconfig
++++ b/drivers/mtd/parsers/Kconfig
+@@ -94,6 +94,14 @@ config MTD_AFS_PARTS
+ for your particular device. It won't happen automatically. The
+ 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example.
+
++config MTD_PARSER_CYBERTAN
++ tristate "Parser for Cybertan format partitions"
++ depends on MTD && (ATH79 || COMPILE_TEST)
++ help
++ Cybertan has a proprietory header than encompasses a Broadcom trx
++ header. This driver will parse the header and take care of the
++ special offsets that result in the extra headers.
++
+ config MTD_PARSER_TRX
+ tristate "Parser for TRX format partitions"
+ depends on MTD && (BCM47XX || ARCH_BCM_5301X || COMPILE_TEST)
--- /dev/null
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -62,6 +62,12 @@ config MTD_MYLOADER_PARTS
+ You will still need the parsing functions to be called by the driver
+ for your particular device. It won't happen automatically.
+
++config MTD_TPLINK_PARTS
++ tristate "TP-Link AR7XXX/AR9XXX partitioning support"
++ depends on ATH79
++ ---help---
++ TBD.
++
+ comment "User Modules And Translation Layers"
+
+ #
+--- a/drivers/mtd/Makefile
++++ b/drivers/mtd/Makefile
+@@ -8,6 +8,7 @@ obj-$(CONFIG_MTD) += mtd.o
+ mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o mtdchar.o
+
+ obj-y += parsers/
++obj-$(CONFIG_MTD_TPLINK_PARTS) += tplinkpart.o
+
+ # 'Users' - code which presents functionality to userspace.
+ obj-$(CONFIG_MTD_BLKDEVS) += mtd_blkdevs.o
--- /dev/null
+--- a/drivers/mtd/parsers/redboot.c
++++ b/drivers/mtd/parsers/redboot.c
+@@ -85,12 +85,18 @@ static int parse_redboot_partitions(stru
+
+ parse_redboot_of(master);
+
++ buf = vmalloc(master->erasesize);
++ if (!buf)
++ return -ENOMEM;
++
++ restart:
+ if ( directory < 0 ) {
+ offset = master->size + directory * master->erasesize;
+ while (mtd_block_isbad(master, offset)) {
+ if (!offset) {
+ nogood:
+ printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
++ vfree(buf);
+ return -EIO;
+ }
+ offset -= master->erasesize;
+@@ -103,10 +109,6 @@ static int parse_redboot_partitions(stru
+ goto nogood;
+ }
+ }
+- buf = vmalloc(master->erasesize);
+-
+- if (!buf)
+- return -ENOMEM;
+
+ printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
+ master->name, offset);
+@@ -179,6 +181,11 @@ static int parse_redboot_partitions(stru
+ }
+ if (i == numslots) {
+ /* Didn't find it */
++ if (offset + master->erasesize < master->size) {
++ /* not at the end of the flash yet, maybe next block :) */
++ directory++;
++ goto restart;
++ }
+ printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
+ master->name);
+ ret = 0;
--- /dev/null
+--- a/drivers/net/phy/at803x.c
++++ b/drivers/net/phy/at803x.c
+@@ -383,6 +383,13 @@ static int at803x_aneg_done(struct phy_d
+ if (!(phy_read(phydev, AT803X_PSSR) & AT803X_PSSR_MR_AN_COMPLETE)) {
+ phydev_warn(phydev, "803x_aneg_done: SGMII link is not ok\n");
+ aneg_done = 0;
++#ifdef CONFIG_OF_MDIO
++ if (phydev->mdio.dev.of_node &&
++ of_property_read_bool(phydev->mdio.dev.of_node,
++ "at803x-override-sgmii-link-check")) {
++ aneg_done = 1;
++ }
++#endif
+ }
+ /* switch back to copper page */
+ phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL);
--- /dev/null
+--- a/drivers/Makefile
++++ b/drivers/Makefile
+@@ -80,8 +80,8 @@ obj-y += scsi/
+ obj-y += nvme/
+ obj-$(CONFIG_ATA) += ata/
+ obj-$(CONFIG_TARGET_CORE) += target/
+-obj-$(CONFIG_MTD) += mtd/
+ obj-$(CONFIG_SPI) += spi/
++obj-$(CONFIG_MTD) += mtd/
+ obj-$(CONFIG_SPMI) += spmi/
+ obj-$(CONFIG_HSI) += hsi/
+ obj-$(CONFIG_SLIMBUS) += slimbus/
--- /dev/null
+--- a/drivers/mtd/nand/raw/Kconfig
++++ b/drivers/mtd/nand/raw/Kconfig
+@@ -544,4 +544,12 @@ config MTD_NAND_DISKONCHIP_BBTWRITE
+ load time (assuming you build diskonchip as a module) with the module
+ parameter "inftl_bbt_write=1".
+
++config MTD_NAND_AR934X
++ tristate "Support for NAND controller on Qualcomm Atheros AR934x/QCA955x SoCs"
++ depends on ATH79 || COMPILE_TEST
++ depends on HAS_IOMEM
++ help
++ Enables support for NAND controller on Qualcomm Atheros SoCs.
++ This controller is found on AR934x and QCA955x SoCs.
++
+ endif # MTD_RAW_NAND
+--- a/drivers/mtd/nand/raw/Makefile
++++ b/drivers/mtd/nand/raw/Makefile
+@@ -57,6 +57,7 @@ obj-$(CONFIG_MTD_NAND_MXIC) += mxic_nan
+ obj-$(CONFIG_MTD_NAND_TEGRA) += tegra_nand.o
+ obj-$(CONFIG_MTD_NAND_STM32_FMC2) += stm32_fmc2_nand.o
+ obj-$(CONFIG_MTD_NAND_MESON) += meson_nand.o
++obj-$(CONFIG_MTD_NAND_AR934X) += ar934x_nand.o
+
+ nand-objs := nand_base.o nand_legacy.o nand_bbt.o nand_timings.o nand_ids.o
+ nand-objs += nand_onfi.o
--- /dev/null
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ath79/mangle-port.h
+@@ -0,0 +1,37 @@
++/*
++ * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
++ *
++ * This file was derived from: inlude/asm-mips/mach-generic/mangle-port.h
++ * Copyright (C) 2003, 2004 Ralf Baechle
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ */
++
++#ifndef __ASM_MACH_ATH79_MANGLE_PORT_H
++#define __ASM_MACH_ATH79_MANGLE_PORT_H
++
++#ifdef CONFIG_PCI_AR71XX
++extern unsigned long (ath79_pci_swizzle_b)(unsigned long port);
++extern unsigned long (ath79_pci_swizzle_w)(unsigned long port);
++#else
++#define ath79_pci_swizzle_b(port) (port)
++#define ath79_pci_swizzle_w(port) (port)
++#endif
++
++#define __swizzle_addr_b(port) ath79_pci_swizzle_b(port)
++#define __swizzle_addr_w(port) ath79_pci_swizzle_w(port)
++#define __swizzle_addr_l(port) (port)
++#define __swizzle_addr_q(port) (port)
++
++# define ioswabb(a, x) (x)
++# define __mem_ioswabb(a, x) (x)
++# define ioswabw(a, x) (x)
++# define __mem_ioswabw(a, x) cpu_to_le16(x)
++# define ioswabl(a, x) (x)
++# define __mem_ioswabl(a, x) cpu_to_le32(x)
++# define ioswabq(a, x) (x)
++# define __mem_ioswabq(a, x) cpu_to_le64(x)
++
++#endif /* __ASM_MACH_ATH79_MANGLE_PORT_H */
+--- a/arch/mips/pci/pci-ar71xx.c
++++ b/arch/mips/pci/pci-ar71xx.c
+@@ -68,6 +68,45 @@ static const u32 ar71xx_pci_read_mask[8]
+ 0, 0xff, 0xffff, 0, 0xffffffff, 0, 0, 0
+ };
+
++static unsigned long (*__ath79_pci_swizzle_b)(unsigned long port);
++static unsigned long (*__ath79_pci_swizzle_w)(unsigned long port);
++
++static inline bool ar71xx_is_pci_addr(unsigned long port)
++{
++ unsigned long phys = CPHYSADDR(port);
++
++ return (phys >= AR71XX_PCI_MEM_BASE &&
++ phys < AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE);
++}
++
++static unsigned long ar71xx_pci_swizzle_b(unsigned long port)
++{
++ return ar71xx_is_pci_addr(port) ? port ^ 3 : port;
++}
++
++static unsigned long ar71xx_pci_swizzle_w(unsigned long port)
++{
++ return ar71xx_is_pci_addr(port) ? port ^ 2 : port;
++}
++
++unsigned long ath79_pci_swizzle_b(unsigned long port)
++{
++ if (__ath79_pci_swizzle_b)
++ return __ath79_pci_swizzle_b(port);
++
++ return port;
++}
++EXPORT_SYMBOL(ath79_pci_swizzle_b);
++
++unsigned long ath79_pci_swizzle_w(unsigned long port)
++{
++ if (__ath79_pci_swizzle_w)
++ return __ath79_pci_swizzle_w(port);
++
++ return port;
++}
++EXPORT_SYMBOL(ath79_pci_swizzle_w);
++
+ static inline u32 ar71xx_pci_get_ble(int where, int size, int local)
+ {
+ u32 t;
+@@ -276,6 +315,9 @@ static int ar71xx_pci_probe(struct platf
+
+ register_pci_controller(&apc->pci_ctrl);
+
++ __ath79_pci_swizzle_b = ar71xx_pci_swizzle_b;
++ __ath79_pci_swizzle_w = ar71xx_pci_swizzle_w;
++
+ return 0;
+ }
+
--- /dev/null
+--- a/drivers/net/phy/mdio-bitbang.c
++++ b/drivers/net/phy/mdio-bitbang.c
+@@ -152,7 +152,7 @@ static int mdiobb_cmd_addr(struct mdiobb
+ static int mdiobb_read(struct mii_bus *bus, int phy, int reg)
+ {
+ struct mdiobb_ctrl *ctrl = bus->priv;
+- int ret, i;
++ int ret;
+
+ if (reg & MII_ADDR_C45) {
+ reg = mdiobb_cmd_addr(ctrl, phy, reg);
+@@ -162,19 +162,7 @@ static int mdiobb_read(struct mii_bus *b
+
+ ctrl->ops->set_mdio_dir(ctrl, 0);
+
+- /* check the turnaround bit: the PHY should be driving it to zero, if this
+- * PHY is listed in phy_ignore_ta_mask as having broken TA, skip that
+- */
+- if (mdiobb_get_bit(ctrl) != 0 &&
+- !(bus->phy_ignore_ta_mask & (1 << phy))) {
+- /* PHY didn't drive TA low -- flush any bits it
+- * may be trying to send.
+- */
+- for (i = 0; i < 32; i++)
+- mdiobb_get_bit(ctrl);
+-
+- return 0xffff;
+- }
++ mdiobb_get_bit(ctrl);
+
+ ret = mdiobb_get_num(ctrl, 16);
+ mdiobb_get_bit(ctrl);
--- /dev/null
+From 66e584435ac0de6e0abeb6d7166fe4fe25d6bb73 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Tue, 16 Jun 2015 13:15:08 +0200
+Subject: [PATCH] phy/mdio-bitbang: prevent rescheduling during command
+
+It seems some phys have some maximum timings for accessing the MDIO line,
+resulting in bit errors under cpu stress. Prevent this from happening by
+disabling interrupts when sending commands.
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ drivers/net/phy/mdio-bitbang.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/net/phy/mdio-bitbang.c
++++ b/drivers/net/phy/mdio-bitbang.c
+@@ -14,6 +14,7 @@
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ */
+
++#include <linux/irqflags.h>
+ #include <linux/module.h>
+ #include <linux/mdio-bitbang.h>
+ #include <linux/types.h>
+@@ -153,7 +154,9 @@ static int mdiobb_read(struct mii_bus *b
+ {
+ struct mdiobb_ctrl *ctrl = bus->priv;
+ int ret;
++ unsigned long flags;
+
++ local_irq_save(flags);
+ if (reg & MII_ADDR_C45) {
+ reg = mdiobb_cmd_addr(ctrl, phy, reg);
+ mdiobb_cmd(ctrl, MDIO_C45_READ, phy, reg);
+@@ -166,13 +169,17 @@ static int mdiobb_read(struct mii_bus *b
+
+ ret = mdiobb_get_num(ctrl, 16);
+ mdiobb_get_bit(ctrl);
++ local_irq_restore(flags);
++
+ return ret;
+ }
+
+ static int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
+ {
+ struct mdiobb_ctrl *ctrl = bus->priv;
++ unsigned long flags;
+
++ local_irq_save(flags);
+ if (reg & MII_ADDR_C45) {
+ reg = mdiobb_cmd_addr(ctrl, phy, reg);
+ mdiobb_cmd(ctrl, MDIO_C45_WRITE, phy, reg);
+@@ -187,6 +194,8 @@ static int mdiobb_write(struct mii_bus *
+
+ ctrl->ops->set_mdio_dir(ctrl, 0);
+ mdiobb_get_bit(ctrl);
++ local_irq_restore(flags);
++
+ return 0;
+ }
+
--- /dev/null
+--- a/arch/mips/include/asm/checksum.h
++++ b/arch/mips/include/asm/checksum.h
+@@ -134,26 +134,30 @@ static inline __sum16 ip_fast_csum(const
+ const unsigned int *stop = word + ihl;
+ unsigned int csum;
+ int carry;
++ unsigned int w;
+
+- csum = word[0];
+- csum += word[1];
+- carry = (csum < word[1]);
++ csum = net_hdr_word(word++);
++
++ w = net_hdr_word(word++);
++ csum += w;
++ carry = (csum < w);
+ csum += carry;
+
+- csum += word[2];
+- carry = (csum < word[2]);
++ w = net_hdr_word(word++);
++ csum += w;
++ carry = (csum < w);
+ csum += carry;
+
+- csum += word[3];
+- carry = (csum < word[3]);
++ w = net_hdr_word(word++);
++ csum += w;
++ carry = (csum < w);
+ csum += carry;
+
+- word += 4;
+ do {
+- csum += *word;
+- carry = (csum < *word);
++ w = net_hdr_word(word++);
++ csum += w;
++ carry = (csum < w);
+ csum += carry;
+- word++;
+ } while (word != stop);
+
+ return csum_fold(csum);
+@@ -214,73 +218,6 @@ static inline __sum16 ip_compute_csum(co
+ return csum_fold(csum_partial(buff, len, 0));
+ }
+
+-#define _HAVE_ARCH_IPV6_CSUM
+-static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+- const struct in6_addr *daddr,
+- __u32 len, __u8 proto,
+- __wsum sum)
+-{
+- __wsum tmp;
+-
+- __asm__(
+- " .set push # csum_ipv6_magic\n"
+- " .set noreorder \n"
+- " .set noat \n"
+- " addu %0, %5 # proto (long in network byte order)\n"
+- " sltu $1, %0, %5 \n"
+- " addu %0, $1 \n"
+-
+- " addu %0, %6 # csum\n"
+- " sltu $1, %0, %6 \n"
+- " lw %1, 0(%2) # four words source address\n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 4(%2) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 8(%2) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 12(%2) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 0(%3) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 4(%3) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 8(%3) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " lw %1, 12(%3) \n"
+- " addu %0, $1 \n"
+- " addu %0, %1 \n"
+- " sltu $1, %0, %1 \n"
+-
+- " addu %0, $1 # Add final carry\n"
+- " .set pop"
+- : "=&r" (sum), "=&r" (tmp)
+- : "r" (saddr), "r" (daddr),
+- "0" (htonl(len)), "r" (htonl(proto)), "r" (sum));
+-
+- return csum_fold(sum);
+-}
+-
+ #include <asm-generic/checksum.h>
+ #endif /* CONFIG_GENERIC_CSUM */
+
+--- a/include/uapi/linux/ip.h
++++ b/include/uapi/linux/ip.h
+@@ -103,7 +103,7 @@ struct iphdr {
+ __be32 saddr;
+ __be32 daddr;
+ /*The options start here. */
+-};
++} __attribute__((packed, aligned(2)));
+
+
+ struct ip_auth_hdr {
+--- a/include/uapi/linux/ipv6.h
++++ b/include/uapi/linux/ipv6.h
+@@ -131,7 +131,7 @@ struct ipv6hdr {
+
+ struct in6_addr saddr;
+ struct in6_addr daddr;
+-};
++} __attribute__((packed, aligned(2)));
+
+
+ /* index values for the variables in ipv6_devconf */
+--- a/include/uapi/linux/tcp.h
++++ b/include/uapi/linux/tcp.h
+@@ -55,7 +55,7 @@ struct tcphdr {
+ __be16 window;
+ __sum16 check;
+ __be16 urg_ptr;
+-};
++} __attribute__((packed, aligned(2)));
+
+ /*
+ * The union cast uses a gcc extension to avoid aliasing problems
+@@ -65,7 +65,7 @@ struct tcphdr {
+ union tcp_word_hdr {
+ struct tcphdr hdr;
+ __be32 words[5];
+-};
++} __attribute__((packed, aligned(2)));
+
+ #define tcp_flag_word(tp) ( ((union tcp_word_hdr *)(tp))->words [3])
+
+--- a/include/uapi/linux/udp.h
++++ b/include/uapi/linux/udp.h
+@@ -25,7 +25,7 @@ struct udphdr {
+ __be16 dest;
+ __be16 len;
+ __sum16 check;
+-};
++} __attribute__((packed, aligned(2)));
+
+ /* UDP socket options */
+ #define UDP_CORK 1 /* Never send partially complete segments */
+--- a/net/netfilter/nf_conntrack_core.c
++++ b/net/netfilter/nf_conntrack_core.c
+@@ -271,8 +271,8 @@ nf_ct_get_tuple(const struct sk_buff *sk
+
+ switch (l3num) {
+ case NFPROTO_IPV4:
+- tuple->src.u3.ip = ap[0];
+- tuple->dst.u3.ip = ap[1];
++ tuple->src.u3.ip = net_hdr_word(ap++);
++ tuple->dst.u3.ip = net_hdr_word(ap);
+ break;
+ case NFPROTO_IPV6:
+ memcpy(tuple->src.u3.ip6, ap, sizeof(tuple->src.u3.ip6));
+--- a/include/uapi/linux/icmp.h
++++ b/include/uapi/linux/icmp.h
+@@ -82,7 +82,7 @@ struct icmphdr {
+ } frag;
+ __u8 reserved[4];
+ } un;
+-};
++} __attribute__((packed, aligned(2)));
+
+
+ /*
+--- a/include/uapi/linux/in6.h
++++ b/include/uapi/linux/in6.h
+@@ -43,7 +43,7 @@ struct in6_addr {
+ #define s6_addr16 in6_u.u6_addr16
+ #define s6_addr32 in6_u.u6_addr32
+ #endif
+-};
++} __attribute__((packed, aligned(2)));
+ #endif /* __UAPI_DEF_IN6_ADDR */
+
+ #if __UAPI_DEF_SOCKADDR_IN6
+--- a/net/ipv6/tcp_ipv6.c
++++ b/net/ipv6/tcp_ipv6.c
+@@ -35,6 +35,7 @@
+ #include <linux/ipsec.h>
+ #include <linux/times.h>
+ #include <linux/slab.h>
++#include <asm/unaligned.h>
+ #include <linux/uaccess.h>
+ #include <linux/ipv6.h>
+ #include <linux/icmpv6.h>
+@@ -849,10 +850,10 @@ static void tcp_v6_send_response(const s
+ topt = (__be32 *)(t1 + 1);
+
+ if (tsecr) {
+- *topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
+- (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP);
+- *topt++ = htonl(tsval);
+- *topt++ = htonl(tsecr);
++ put_unaligned_be32((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
++ (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP, topt++);
++ put_unaligned_be32(tsval, topt++);
++ put_unaligned_be32(tsecr, topt++);
+ }
+
+ #ifdef CONFIG_TCP_MD5SIG
+--- a/include/linux/ipv6.h
++++ b/include/linux/ipv6.h
+@@ -6,6 +6,7 @@
+
+ #define ipv6_optlen(p) (((p)->hdrlen+1) << 3)
+ #define ipv6_authlen(p) (((p)->hdrlen+2) << 2)
++
+ /*
+ * This structure contains configuration options per IPv6 link.
+ */
+--- a/net/ipv6/datagram.c
++++ b/net/ipv6/datagram.c
+@@ -476,7 +476,7 @@ int ipv6_recv_error(struct sock *sk, str
+ ipv6_iface_scope_id(&sin->sin6_addr,
+ IP6CB(skb)->iif);
+ } else {
+- ipv6_addr_set_v4mapped(*(__be32 *)(nh + serr->addr_offset),
++ ipv6_addr_set_v4mapped(net_hdr_word(nh + serr->addr_offset),
+ &sin->sin6_addr);
+ sin->sin6_scope_id = 0;
+ }
+@@ -830,12 +830,12 @@ int ip6_datagram_send_ctl(struct net *ne
+ }
+
+ if (fl6->flowlabel&IPV6_FLOWINFO_MASK) {
+- if ((fl6->flowlabel^*(__be32 *)CMSG_DATA(cmsg))&~IPV6_FLOWINFO_MASK) {
++ if ((fl6->flowlabel^net_hdr_word(CMSG_DATA(cmsg)))&~IPV6_FLOWINFO_MASK) {
+ err = -EINVAL;
+ goto exit_f;
+ }
+ }
+- fl6->flowlabel = IPV6_FLOWINFO_MASK & *(__be32 *)CMSG_DATA(cmsg);
++ fl6->flowlabel = IPV6_FLOWINFO_MASK & net_hdr_word(CMSG_DATA(cmsg));
+ break;
+
+ case IPV6_2292HOPOPTS:
+--- a/net/ipv6/exthdrs.c
++++ b/net/ipv6/exthdrs.c
+@@ -752,7 +752,7 @@ static bool ipv6_hop_jumbo(struct sk_buf
+ goto drop;
+ }
+
+- pkt_len = ntohl(*(__be32 *)(nh + optoff + 2));
++ pkt_len = ntohl(net_hdr_word(nh + optoff + 2));
+ if (pkt_len <= IPV6_MAXPLEN) {
+ __IP6_INC_STATS(net, idev, IPSTATS_MIB_INHDRERRORS);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff+2);
+--- a/include/linux/types.h
++++ b/include/linux/types.h
+@@ -225,5 +225,11 @@ struct callback_head {
+ typedef void (*rcu_callback_t)(struct rcu_head *head);
+ typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func);
+
++struct net_hdr_word {
++ u32 words[1];
++} __attribute__((packed, aligned(2)));
++
++#define net_hdr_word(_p) (((struct net_hdr_word *) (_p))->words[0])
++
+ #endif /* __ASSEMBLY__ */
+ #endif /* _LINUX_TYPES_H */
+--- a/net/ipv4/af_inet.c
++++ b/net/ipv4/af_inet.c
+@@ -1441,8 +1441,8 @@ struct sk_buff *inet_gro_receive(struct
+ if (unlikely(ip_fast_csum((u8 *)iph, 5)))
+ goto out_unlock;
+
+- id = ntohl(*(__be32 *)&iph->id);
+- flush = (u16)((ntohl(*(__be32 *)iph) ^ skb_gro_len(skb)) | (id & ~IP_DF));
++ id = ntohl(net_hdr_word(&iph->id));
++ flush = (u16)((ntohl(net_hdr_word(iph)) ^ skb_gro_len(skb)) | (id & ~IP_DF));
+ id >>= 16;
+
+ list_for_each_entry(p, head, list) {
+--- a/net/ipv4/tcp_output.c
++++ b/net/ipv4/tcp_output.c
+@@ -457,48 +457,53 @@ static void tcp_options_write(__be32 *pt
+ u16 options = opts->options; /* mungable copy */
+
+ if (unlikely(OPTION_MD5 & options)) {
+- *ptr++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
+- (TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG);
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
++ (TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG);
+ /* overload cookie hash location */
+ opts->hash_location = (__u8 *)ptr;
+ ptr += 4;
+ }
+
+ if (unlikely(opts->mss)) {
+- *ptr++ = htonl((TCPOPT_MSS << 24) |
+- (TCPOLEN_MSS << 16) |
+- opts->mss);
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) |
++ opts->mss);
+ }
+
+ if (likely(OPTION_TS & options)) {
+ if (unlikely(OPTION_SACK_ADVERTISE & options)) {
+- *ptr++ = htonl((TCPOPT_SACK_PERM << 24) |
+- (TCPOLEN_SACK_PERM << 16) |
+- (TCPOPT_TIMESTAMP << 8) |
+- TCPOLEN_TIMESTAMP);
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_SACK_PERM << 24) |
++ (TCPOLEN_SACK_PERM << 16) |
++ (TCPOPT_TIMESTAMP << 8) |
++ TCPOLEN_TIMESTAMP);
+ options &= ~OPTION_SACK_ADVERTISE;
+ } else {
+- *ptr++ = htonl((TCPOPT_NOP << 24) |
+- (TCPOPT_NOP << 16) |
+- (TCPOPT_TIMESTAMP << 8) |
+- TCPOLEN_TIMESTAMP);
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_NOP << 24) |
++ (TCPOPT_NOP << 16) |
++ (TCPOPT_TIMESTAMP << 8) |
++ TCPOLEN_TIMESTAMP);
+ }
+- *ptr++ = htonl(opts->tsval);
+- *ptr++ = htonl(opts->tsecr);
++ net_hdr_word(ptr++) = htonl(opts->tsval);
++ net_hdr_word(ptr++) = htonl(opts->tsecr);
+ }
+
+ if (unlikely(OPTION_SACK_ADVERTISE & options)) {
+- *ptr++ = htonl((TCPOPT_NOP << 24) |
+- (TCPOPT_NOP << 16) |
+- (TCPOPT_SACK_PERM << 8) |
+- TCPOLEN_SACK_PERM);
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_NOP << 24) |
++ (TCPOPT_NOP << 16) |
++ (TCPOPT_SACK_PERM << 8) |
++ TCPOLEN_SACK_PERM);
+ }
+
+ if (unlikely(OPTION_WSCALE & options)) {
+- *ptr++ = htonl((TCPOPT_NOP << 24) |
+- (TCPOPT_WINDOW << 16) |
+- (TCPOLEN_WINDOW << 8) |
+- opts->ws);
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_NOP << 24) |
++ (TCPOPT_WINDOW << 16) |
++ (TCPOLEN_WINDOW << 8) |
++ opts->ws);
+ }
+
+ if (unlikely(opts->num_sack_blocks)) {
+@@ -506,16 +511,17 @@ static void tcp_options_write(__be32 *pt
+ tp->duplicate_sack : tp->selective_acks;
+ int this_sack;
+
+- *ptr++ = htonl((TCPOPT_NOP << 24) |
+- (TCPOPT_NOP << 16) |
+- (TCPOPT_SACK << 8) |
+- (TCPOLEN_SACK_BASE + (opts->num_sack_blocks *
++ net_hdr_word(ptr++) =
++ htonl((TCPOPT_NOP << 24) |
++ (TCPOPT_NOP << 16) |
++ (TCPOPT_SACK << 8) |
++ (TCPOLEN_SACK_BASE + (opts->num_sack_blocks *
+ TCPOLEN_SACK_PERBLOCK)));
+
+ for (this_sack = 0; this_sack < opts->num_sack_blocks;
+ ++this_sack) {
+- *ptr++ = htonl(sp[this_sack].start_seq);
+- *ptr++ = htonl(sp[this_sack].end_seq);
++ net_hdr_word(ptr++) = htonl(sp[this_sack].start_seq);
++ net_hdr_word(ptr++) = htonl(sp[this_sack].end_seq);
+ }
+
+ tp->rx_opt.dsack = 0;
+@@ -528,13 +534,14 @@ static void tcp_options_write(__be32 *pt
+
+ if (foc->exp) {
+ len = TCPOLEN_EXP_FASTOPEN_BASE + foc->len;
+- *ptr = htonl((TCPOPT_EXP << 24) | (len << 16) |
++ net_hdr_word(ptr) =
++ htonl((TCPOPT_EXP << 24) | (len << 16) |
+ TCPOPT_FASTOPEN_MAGIC);
+ p += TCPOLEN_EXP_FASTOPEN_BASE;
+ } else {
+ len = TCPOLEN_FASTOPEN_BASE + foc->len;
+- *p++ = TCPOPT_FASTOPEN;
+- *p++ = len;
++ net_hdr_word(p++) = TCPOPT_FASTOPEN;
++ net_hdr_word(p++) = len;
+ }
+
+ memcpy(p, foc->val, foc->len);
+--- a/include/uapi/linux/igmp.h
++++ b/include/uapi/linux/igmp.h
+@@ -33,7 +33,7 @@ struct igmphdr {
+ __u8 code; /* For newer IGMP */
+ __sum16 csum;
+ __be32 group;
+-};
++} __attribute__((packed, aligned(2)));
+
+ /* V3 group record types [grec_type] */
+ #define IGMPV3_MODE_IS_INCLUDE 1
+@@ -49,7 +49,7 @@ struct igmpv3_grec {
+ __be16 grec_nsrcs;
+ __be32 grec_mca;
+ __be32 grec_src[0];
+-};
++} __attribute__((packed, aligned(2)));
+
+ struct igmpv3_report {
+ __u8 type;
+@@ -58,7 +58,7 @@ struct igmpv3_report {
+ __be16 resv2;
+ __be16 ngrec;
+ struct igmpv3_grec grec[0];
+-};
++} __attribute__((packed, aligned(2)));
+
+ struct igmpv3_query {
+ __u8 type;
+@@ -79,7 +79,7 @@ struct igmpv3_query {
+ __u8 qqic;
+ __be16 nsrcs;
+ __be32 srcs[0];
+-};
++} __attribute__((packed, aligned(2)));
+
+ #define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* From RFC1112 */
+ #define IGMP_HOST_MEMBERSHIP_REPORT 0x12 /* Ditto */
+--- a/net/core/flow_dissector.c
++++ b/net/core/flow_dissector.c
+@@ -196,7 +196,7 @@ __be32 __skb_flow_get_ports(const struct
+ ports = __skb_header_pointer(skb, thoff + poff,
+ sizeof(_ports), data, hlen, &_ports);
+ if (ports)
+- return *ports;
++ return (__be32)net_hdr_word(ports);
+ }
+
+ return 0;
+--- a/include/uapi/linux/icmpv6.h
++++ b/include/uapi/linux/icmpv6.h
+@@ -77,7 +77,7 @@ struct icmp6hdr {
+ #define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
+ #define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
+ #define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
+-};
++} __attribute__((packed, aligned(2)));
+
+
+ #define ICMPV6_ROUTER_PREF_LOW 0x3
+--- a/include/net/ndisc.h
++++ b/include/net/ndisc.h
+@@ -92,7 +92,7 @@ struct ra_msg {
+ struct icmp6hdr icmph;
+ __be32 reachable_time;
+ __be32 retrans_timer;
+-};
++} __attribute__((packed, aligned(2)));
+
+ struct rd_msg {
+ struct icmp6hdr icmph;
+@@ -371,10 +371,10 @@ static inline u32 ndisc_hashfn(const voi
+ {
+ const u32 *p32 = pkey;
+
+- return (((p32[0] ^ hash32_ptr(dev)) * hash_rnd[0]) +
+- (p32[1] * hash_rnd[1]) +
+- (p32[2] * hash_rnd[2]) +
+- (p32[3] * hash_rnd[3]));
++ return (((net_hdr_word(&p32[0]) ^ hash32_ptr(dev)) * hash_rnd[0]) +
++ (net_hdr_word(&p32[1]) * hash_rnd[1]) +
++ (net_hdr_word(&p32[2]) * hash_rnd[2]) +
++ (net_hdr_word(&p32[3]) * hash_rnd[3]));
+ }
+
+ static inline struct neighbour *__ipv6_neigh_lookup_noref(struct net_device *dev, const void *pkey)
+--- a/net/sched/cls_u32.c
++++ b/net/sched/cls_u32.c
+@@ -155,7 +155,7 @@ next_knode:
+ data = skb_header_pointer(skb, toff, 4, &hdata);
+ if (!data)
+ goto out;
+- if ((*data ^ key->val) & key->mask) {
++ if ((net_hdr_word(data) ^ key->val) & key->mask) {
+ n = rcu_dereference_bh(n->next);
+ goto next_knode;
+ }
+@@ -206,8 +206,8 @@ check_terminal:
+ &hdata);
+ if (!data)
+ goto out;
+- sel = ht->divisor & u32_hash_fold(*data, &n->sel,
+- n->fshift);
++ sel = ht->divisor & u32_hash_fold(net_hdr_word(data),
++ &n->sel, n->fshift);
+ }
+ if (!(n->sel.flags & (TC_U32_VAROFFSET | TC_U32_OFFSET | TC_U32_EAT)))
+ goto next_ht;
+--- a/net/ipv6/ip6_offload.c
++++ b/net/ipv6/ip6_offload.c
+@@ -240,7 +240,7 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *
+ continue;
+
+ iph2 = (struct ipv6hdr *)(p->data + off);
+- first_word = *(__be32 *)iph ^ *(__be32 *)iph2;
++ first_word = net_hdr_word(iph) ^ net_hdr_word(iph2);
+
+ /* All fields must match except length and Traffic Class.
+ * XXX skbs on the gro_list have all been parsed and pulled
+--- a/include/net/addrconf.h
++++ b/include/net/addrconf.h
+@@ -47,7 +47,7 @@ struct prefix_info {
+ __be32 reserved2;
+
+ struct in6_addr prefix;
+-};
++} __attribute__((packed, aligned(2)));
+
+ #include <linux/ipv6.h>
+ #include <linux/netdevice.h>
+--- a/include/net/inet_ecn.h
++++ b/include/net/inet_ecn.h
+@@ -125,9 +125,9 @@ static inline int IP6_ECN_set_ce(struct
+ if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph)))
+ return 0;
+
+- from = *(__be32 *)iph;
++ from = net_hdr_word(iph);
+ to = from | htonl(INET_ECN_CE << 20);
+- *(__be32 *)iph = to;
++ net_hdr_word(iph) = to;
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)from),
+ (__force __wsum)to);
+--- a/include/net/ipv6.h
++++ b/include/net/ipv6.h
+@@ -146,7 +146,7 @@ struct frag_hdr {
+ __u8 reserved;
+ __be16 frag_off;
+ __be32 identification;
+-};
++} __attribute__((packed, aligned(2)));
+
+ #define IP6_MF 0x0001
+ #define IP6_OFFSET 0xFFF8
+@@ -557,8 +557,8 @@ static inline void __ipv6_addr_set_half(
+ }
+ #endif
+ #endif
+- addr[0] = wh;
+- addr[1] = wl;
++ net_hdr_word(&addr[0]) = wh;
++ net_hdr_word(&addr[1]) = wl;
+ }
+
+ static inline void ipv6_addr_set(struct in6_addr *addr,
+@@ -617,6 +617,8 @@ static inline bool ipv6_prefix_equal(con
+ const __be32 *a1 = addr1->s6_addr32;
+ const __be32 *a2 = addr2->s6_addr32;
+ unsigned int pdw, pbi;
++ /* Used for last <32-bit fraction of prefix */
++ u32 pbia1, pbia2;
+
+ /* check complete u32 in prefix */
+ pdw = prefixlen >> 5;
+@@ -625,7 +627,9 @@ static inline bool ipv6_prefix_equal(con
+
+ /* check incomplete u32 in prefix */
+ pbi = prefixlen & 0x1f;
+- if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi))))
++ pbia1 = net_hdr_word(&a1[pdw]);
++ pbia2 = net_hdr_word(&a2[pdw]);
++ if (pbi && ((pbia1 ^ pbia2) & htonl((0xffffffff) << (32 - pbi))))
+ return false;
+
+ return true;
+@@ -741,13 +745,13 @@ static inline void ipv6_addr_set_v4mappe
+ */
+ static inline int __ipv6_addr_diff32(const void *token1, const void *token2, int addrlen)
+ {
+- const __be32 *a1 = token1, *a2 = token2;
++ const struct in6_addr *a1 = token1, *a2 = token2;
+ int i;
+
+ addrlen >>= 2;
+
+ for (i = 0; i < addrlen; i++) {
+- __be32 xb = a1[i] ^ a2[i];
++ __be32 xb = a1->s6_addr32[i] ^ a2->s6_addr32[i];
+ if (xb)
+ return i * 32 + 31 - __fls(ntohl(xb));
+ }
+@@ -934,17 +938,18 @@ static inline int ip6_multipath_hash_pol
+ static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass,
+ __be32 flowlabel)
+ {
+- *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | flowlabel;
++ net_hdr_word((__be32 *)hdr) =
++ htonl(0x60000000 | (tclass << 20)) | flowlabel;
+ }
+
+ static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr)
+ {
+- return *(__be32 *)hdr & IPV6_FLOWINFO_MASK;
++ return net_hdr_word((__be32 *)hdr) & IPV6_FLOWINFO_MASK;
+ }
+
+ static inline __be32 ip6_flowlabel(const struct ipv6hdr *hdr)
+ {
+- return *(__be32 *)hdr & IPV6_FLOWLABEL_MASK;
++ return net_hdr_word((__be32 *)hdr) & IPV6_FLOWLABEL_MASK;
+ }
+
+ static inline u8 ip6_tclass(__be32 flowinfo)
+--- a/include/net/secure_seq.h
++++ b/include/net/secure_seq.h
+@@ -3,6 +3,7 @@
+ #define _NET_SECURE_SEQ
+
+ #include <linux/types.h>
++#include <linux/in6.h>
+
+ u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
+ u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
+--- a/include/uapi/linux/in.h
++++ b/include/uapi/linux/in.h
+@@ -84,7 +84,7 @@ enum {
+ /* Internet address. */
+ struct in_addr {
+ __be32 s_addr;
+-};
++} __attribute__((packed, aligned(2)));
+ #endif
+
+ #define IP_TOS 1
+--- a/net/ipv6/ip6_fib.c
++++ b/net/ipv6/ip6_fib.c
+@@ -140,7 +140,7 @@ static __be32 addr_bit_set(const void *t
+ * See include/asm-generic/bitops/le.h.
+ */
+ return (__force __be32)(1 << ((~fn_bit ^ BITOP_BE32_SWIZZLE) & 0x1f)) &
+- addr[fn_bit >> 5];
++ net_hdr_word(&addr[fn_bit >> 5]);
+ }
+
+ struct fib6_info *fib6_info_alloc(gfp_t gfp_flags, bool with_fib6_nh)
+--- a/net/netfilter/nf_conntrack_proto_tcp.c
++++ b/net/netfilter/nf_conntrack_proto_tcp.c
+@@ -415,7 +415,7 @@ static void tcp_sack(const struct sk_buf
+
+ /* Fast path for timestamp-only option */
+ if (length == TCPOLEN_TSTAMP_ALIGNED
+- && *(__be32 *)ptr == htonl((TCPOPT_NOP << 24)
++ && net_hdr_word(ptr) == htonl((TCPOPT_NOP << 24)
+ | (TCPOPT_NOP << 16)
+ | (TCPOPT_TIMESTAMP << 8)
+ | TCPOLEN_TIMESTAMP))
+--- a/net/xfrm/xfrm_input.c
++++ b/net/xfrm/xfrm_input.c
+@@ -162,8 +162,8 @@ int xfrm_parse_spi(struct sk_buff *skb,
+ if (!pskb_may_pull(skb, hlen))
+ return -EINVAL;
+
+- *spi = *(__be32 *)(skb_transport_header(skb) + offset);
+- *seq = *(__be32 *)(skb_transport_header(skb) + offset_seq);
++ *spi = net_hdr_word(skb_transport_header(skb) + offset);
++ *seq = net_hdr_word(skb_transport_header(skb) + offset_seq);
+ return 0;
+ }
+ EXPORT_SYMBOL(xfrm_parse_spi);
+--- a/net/ipv4/tcp_input.c
++++ b/net/ipv4/tcp_input.c
+@@ -3953,14 +3953,16 @@ static bool tcp_parse_aligned_timestamp(
+ {
+ const __be32 *ptr = (const __be32 *)(th + 1);
+
+- if (*ptr == htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
+- | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
++ if (net_hdr_word(ptr) ==
++ htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
++ (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
+ tp->rx_opt.saw_tstamp = 1;
+ ++ptr;
+- tp->rx_opt.rcv_tsval = ntohl(*ptr);
++ tp->rx_opt.rcv_tsval = get_unaligned_be32(ptr);
+ ++ptr;
+- if (*ptr)
+- tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset;
++ if (net_hdr_word(ptr))
++ tp->rx_opt.rcv_tsecr = get_unaligned_be32(ptr) -
++ tp->tsoffset;
+ else
+ tp->rx_opt.rcv_tsecr = 0;
+ return true;
+--- a/include/uapi/linux/if_pppox.h
++++ b/include/uapi/linux/if_pppox.h
+@@ -51,6 +51,7 @@ struct pppoe_addr {
+ */
+ struct pptp_addr {
+ __u16 call_id;
++ __u16 pad;
+ struct in_addr sin_addr;
+ };
+
+--- a/net/ipv6/netfilter/nf_log_ipv6.c
++++ b/net/ipv6/netfilter/nf_log_ipv6.c
+@@ -63,9 +63,9 @@ static void dump_ipv6_packet(struct net
+ /* Max length: 44 "LEN=65535 TC=255 HOPLIMIT=255 FLOWLBL=FFFFF " */
+ nf_log_buf_add(m, "LEN=%zu TC=%u HOPLIMIT=%u FLOWLBL=%u ",
+ ntohs(ih->payload_len) + sizeof(struct ipv6hdr),
+- (ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20,
++ (ntohl(net_hdr_word(ih)) & 0x0ff00000) >> 20,
+ ih->hop_limit,
+- (ntohl(*(__be32 *)ih) & 0x000fffff));
++ (ntohl(net_hdr_word(ih)) & 0x000fffff));
+
+ fragment = 0;
+ ptr = ip6hoff + sizeof(struct ipv6hdr);
+--- a/include/net/neighbour.h
++++ b/include/net/neighbour.h
+@@ -274,8 +274,10 @@ static inline bool neigh_key_eq128(const
+ const u32 *n32 = (const u32 *)n->primary_key;
+ const u32 *p32 = pkey;
+
+- return ((n32[0] ^ p32[0]) | (n32[1] ^ p32[1]) |
+- (n32[2] ^ p32[2]) | (n32[3] ^ p32[3])) == 0;
++ return ((n32[0] ^ net_hdr_word(&p32[0])) |
++ (n32[1] ^ net_hdr_word(&p32[1])) |
++ (n32[2] ^ net_hdr_word(&p32[2])) |
++ (n32[3] ^ net_hdr_word(&p32[3]))) == 0;
+ }
+
+ static inline struct neighbour *___neigh_lookup_noref(
+--- a/include/uapi/linux/netfilter_arp/arp_tables.h
++++ b/include/uapi/linux/netfilter_arp/arp_tables.h
+@@ -70,7 +70,7 @@ struct arpt_arp {
+ __u8 flags;
+ /* Inverse flags */
+ __u16 invflags;
+-};
++} __attribute__((aligned(4)));
+
+ /* Values for "flag" field in struct arpt_ip (general arp structure).
+ * No flags defined yet.
+--- a/net/core/utils.c
++++ b/net/core/utils.c
+@@ -443,8 +443,14 @@ void inet_proto_csum_replace16(__sum16 *
+ bool pseudohdr)
+ {
+ __be32 diff[] = {
+- ~from[0], ~from[1], ~from[2], ~from[3],
+- to[0], to[1], to[2], to[3],
++ ~net_hdr_word(&from[0]),
++ ~net_hdr_word(&from[1]),
++ ~net_hdr_word(&from[2]),
++ ~net_hdr_word(&from[3]),
++ net_hdr_word(&to[0]),
++ net_hdr_word(&to[1]),
++ net_hdr_word(&to[2]),
++ net_hdr_word(&to[3]),
+ };
+ if (skb->ip_summed != CHECKSUM_PARTIAL) {
+ *sum = csum_fold(csum_partial(diff, sizeof(diff),
+--- a/include/linux/etherdevice.h
++++ b/include/linux/etherdevice.h
+@@ -496,7 +496,7 @@ static inline bool is_etherdev_addr(cons
+ * @b: Pointer to Ethernet header
+ *
+ * Compare two Ethernet headers, returns 0 if equal.
+- * This assumes that the network header (i.e., IP header) is 4-byte
++ * This assumes that the network header (i.e., IP header) is 2-byte
+ * aligned OR the platform can handle unaligned access. This is the
+ * case for all packets coming into netif_receive_skb or similar
+ * entry points.
+@@ -519,11 +519,12 @@ static inline unsigned long compare_ethe
+ fold |= *(unsigned long *)(a + 6) ^ *(unsigned long *)(b + 6);
+ return fold;
+ #else
+- u32 *a32 = (u32 *)((u8 *)a + 2);
+- u32 *b32 = (u32 *)((u8 *)b + 2);
++ const u16 *a16 = a;
++ const u16 *b16 = b;
+
+- return (*(u16 *)a ^ *(u16 *)b) | (a32[0] ^ b32[0]) |
+- (a32[1] ^ b32[1]) | (a32[2] ^ b32[2]);
++ return (a16[0] ^ b16[0]) | (a16[1] ^ b16[1]) | (a16[2] ^ b16[2]) |
++ (a16[3] ^ b16[3]) | (a16[4] ^ b16[4]) | (a16[5] ^ b16[5]) |
++ (a16[6] ^ b16[6]);
+ #endif
+ }
+
+--- a/net/ipv4/tcp_offload.c
++++ b/net/ipv4/tcp_offload.c
+@@ -223,7 +223,7 @@ struct sk_buff *tcp_gro_receive(struct l
+
+ th2 = tcp_hdr(p);
+
+- if (*(u32 *)&th->source ^ *(u32 *)&th2->source) {
++ if (net_hdr_word(&th->source) ^ net_hdr_word(&th2->source)) {
+ NAPI_GRO_CB(p)->same_flow = 0;
+ continue;
+ }
+@@ -241,8 +241,8 @@ found:
+ ~(TCP_FLAG_CWR | TCP_FLAG_FIN | TCP_FLAG_PSH));
+ flush |= (__force int)(th->ack_seq ^ th2->ack_seq);
+ for (i = sizeof(*th); i < thlen; i += 4)
+- flush |= *(u32 *)((u8 *)th + i) ^
+- *(u32 *)((u8 *)th2 + i);
++ flush |= net_hdr_word((u8 *)th + i) ^
++ net_hdr_word((u8 *)th2 + i);
+
+ /* When we receive our second frame we can made a decision on if we
+ * continue this flow as an atomic flow with a fixed ID or if we use
+--- a/net/ipv6/netfilter/ip6table_mangle.c
++++ b/net/ipv6/netfilter/ip6table_mangle.c
+@@ -47,7 +47,7 @@ ip6t_mangle_out(struct sk_buff *skb, con
+ hop_limit = ipv6_hdr(skb)->hop_limit;
+
+ /* flowlabel and prio (includes version, which shouldn't change either */
+- flowlabel = *((u_int32_t *)ipv6_hdr(skb));
++ flowlabel = net_hdr_word(ipv6_hdr(skb));
+
+ ret = ip6t_do_table(skb, state, state->net->ipv6.ip6table_mangle);
+
+@@ -56,7 +56,7 @@ ip6t_mangle_out(struct sk_buff *skb, con
+ !ipv6_addr_equal(&ipv6_hdr(skb)->daddr, &daddr) ||
+ skb->mark != mark ||
+ ipv6_hdr(skb)->hop_limit != hop_limit ||
+- flowlabel != *((u_int32_t *)ipv6_hdr(skb)))) {
++ flowlabel != net_hdr_word(ipv6_hdr(skb)))) {
+ err = ip6_route_me_harder(state->net, skb);
+ if (err < 0)
+ ret = NF_DROP_ERR(err);
CONFIG_LEDS_RESET=y
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
+CONFIG_NET_DEVLINK=y
CONFIG_NET_DSA=y
CONFIG_NET_DSA_MV88E6060=y
+# CONFIG_NET_DSA_TAG_QCA is not set
CONFIG_NET_DSA_TAG_TRAILER=y
CONFIG_NET_SWITCHDEV=y
+CONFIG_PHYLINK=y
CONFIG_PHY_AR7100_USB=y
CONFIG_PHY_AR7200_USB=y
CONFIG_REGULATOR=y
projects / openwrt / staging / stintel.git / commitdiff