CPU_SUBTYPE:=24kf
KERNEL_PATCHVER:=4.14
+KERNEL_TESTING_PATCHVER:=5.4
include $(INCLUDE_DIR)/target.mk
-CONFIG_ARCH_BINFMT_ELF_STATE=y
+CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
-CONFIG_ARCH_DISCARD_MEMBLOCK=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_GCOV_PROFILE_ALL is not set
-# CONFIG_ARCH_HAS_SG_CHAIN is not set
-# CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set
-# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
+CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
+CONFIG_ARCH_HAS_UNCACHED_SEGMENT=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
-CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
-CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_ARCH_MMAP_RND_BITS_MAX=15
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15
-# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
-# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
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_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_SD=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_COMMON_CLK=y
# CONFIG_COMMON_CLK_BOSTON is not set
+CONFIG_COMPAT_32BIT_TIME=y
CONFIG_CONNECTOR=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_HOTPLUG_STATE_CONTROL is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
CONFIG_CPU_PM=y
CONFIG_CPU_R4K_CACHE_TLB=y
-CONFIG_CPU_R4K_FPU=y
CONFIG_CPU_RMAP=y
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_HIGHMEM=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_HASH_INFO=y
+CONFIG_CRYPTO_LIB_SHA256=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
-CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_CRYPTO_ZSTD=y
CONFIG_CSRC_R4K=y
CONFIG_DMADEVICES=y
CONFIG_DMA_ENGINE=y
CONFIG_DMA_NONCOHERENT=y
+CONFIG_DMA_NONCOHERENT_CACHE_SYNC=y
CONFIG_DMA_OF=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DTC=y
-# CONFIG_DWMAC_DWC_QOS_ETH is not set
CONFIG_DWMAC_GENERIC=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_8250=y
+CONFIG_EFI_EARLYCON=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_FIXED_PHY=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_AUTOSELECT=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FS_IOMAP=y
CONFIG_FS_MBCACHE=y
CONFIG_FS_POSIX_ACL=y
+CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_GENERIC_ATOMIC64=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
-CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_IRQ_IPI=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_TIME_VSYSCALL=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_IRQCHIP=y
-# CONFIG_GRO_CELLS is not set
CONFIG_HANDLE_DOMAIN_IRQ=y
CONFIG_HARDWARE_WATCHPOINTS=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
-# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
-# CONFIG_HAVE_ARCH_BITREVERSE is not set
+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_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_CBPF_JIT=y
-CONFIG_HAVE_CC_STACKPROTECTOR=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
-CONFIG_HAVE_DMA_API_DEBUG=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_DMA_COHERENT=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_LATENCYTOP_SUPPORT=y
-CONFIG_HAVE_MEMBLOCK=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_PERF_EVENTS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HOTPLUG_CPU=y
+CONFIG_HZ=250
+CONFIG_HZ_250=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_IMG=y
CONFIG_LEDS_PWM=y
CONFIG_LIBFDT=y
CONFIG_LKDTM=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0
CONFIG_MDIO_BUS=y
CONFIG_MDIO_DEVICE=y
+CONFIG_MEMFD_CREATE=y
CONFIG_MFD_SYSCON=y
CONFIG_MICREL_PHY=y
+CONFIG_MIGRATION=y
CONFIG_MIPS=y
CONFIG_MIPS_ASID_BITS=8
CONFIG_MIPS_ASID_SHIFT=0
+CONFIG_MIPS_CBPF_JIT=y
CONFIG_MIPS_CLOCK_VSYSCALL=y
CONFIG_MIPS_CM=y
# CONFIG_MIPS_CMDLINE_DTB_EXTEND is not set
CONFIG_MIPS_CPC=y
CONFIG_MIPS_CPS=y
# CONFIG_MIPS_CPS_CPUIDLE is not set
-# CONFIG_MIPS_CPS_NS16550 is not set
+# CONFIG_MIPS_CPS_NS16550_BOOL is not set
CONFIG_MIPS_CPS_PM=y
CONFIG_MIPS_CPU_SCACHE=y
# CONFIG_MIPS_ELF_APPENDED_DTB is not set
CONFIG_MIPS_EXTERNAL_TIMER=y
CONFIG_MIPS_GIC=y
-# CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
CONFIG_MIPS_L1_CACHE_SHIFT=5
-# CONFIG_MIPS_MACHINE is not set
CONFIG_MIPS_MT=y
CONFIG_MIPS_MT_FPAFF=y
CONFIG_MIPS_MT_SMP=y
CONFIG_MIPS_NO_APPENDED_DTB=y
+CONFIG_MIPS_NR_CPU_NR_MAP=4
CONFIG_MIPS_PERF_SHARED_TC_COUNTERS=y
# CONFIG_MIPS_RAW_APPENDED_DTB is not set
CONFIG_MIPS_SPRAM=y
-# CONFIG_MIPS_VPE_LOADER is not set
CONFIG_MMC=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_DW=y
+# CONFIG_MMC_DW_BLUEFIELD is not set
# CONFIG_MMC_DW_EXYNOS is not set
+# CONFIG_MMC_DW_HI3798CV200 is not set
# CONFIG_MMC_DW_K3 is not set
CONFIG_MMC_DW_PLTFM=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_M25P80=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_SPI_NAND=y
-CONFIG_MTD_SPI_NAND_DEVICES=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS_LIMIT=16384
CONFIG_NO_HZ=y
CONFIG_NO_HZ_COMMON=y
CONFIG_NO_HZ_IDLE=y
-# CONFIG_NO_IOPORT_MAP is not set
CONFIG_NR_CPUS=4
CONFIG_OF=y
CONFIG_OF_ADDRESS=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_PADATA=y
+CONFIG_PAGE_POOL=y
CONFIG_PCI_DRIVERS_LEGACY=y
CONFIG_PERF_USE_VMALLOC=y
CONFIG_PGTABLE_LEVELS=2
# CONFIG_PGTABLE_MAPPING is not set
CONFIG_PHYLIB=y
+CONFIG_PHYLINK=y
CONFIG_PHY_PISTACHIO_USB=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_PISTACHIO=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_REGMAP=y
-CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_MMIO=y
-CONFIG_REGMAP_SPI=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_GPIO=y
CONFIG_SCSI=y
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SERIAL_8250_DW=y
-# CONFIG_SERIAL_8250_FSL is not set
+CONFIG_SERIAL_8250_DWLIB=y
+CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SGL_ALLOC=y
CONFIG_SG_POOL=y
CONFIG_SMP=y
CONFIG_SMP_UP=y
CONFIG_SPI=y
CONFIG_SPI_IMG_SPFI=y
CONFIG_SPI_MASTER=y
+CONFIG_SPI_MEM=y
CONFIG_SRAM=y
CONFIG_SRCU=y
CONFIG_STMMAC_ETH=y
CONFIG_STMMAC_PLATFORM=y
+# CONFIG_STMMAC_SELFTESTS is not set
CONFIG_SWPHY=y
CONFIG_SYNC_R4K=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYS_SUPPORTS_SCHED_SMT=y
CONFIG_SYS_SUPPORTS_SMP=y
CONFIG_SYS_SUPPORTS_ZBOOT=y
+CONFIG_TARGET_ISA_REV=2
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
+CONFIG_UBIFS_FS_ZSTD=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_COMMON=y
CONFIG_USB_DWC2=y
CONFIG_USB_DWC2_DUAL_ROLE=y
-# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
CONFIG_USB_GADGET=y
CONFIG_WATCHDOG_CORE=y
CONFIG_WEAK_ORDERING=y
CONFIG_XPS=y
+CONFIG_XXHASH=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZSMALLOC=y
# CONFIG_ZSMALLOC_STAT is not set
+CONFIG_ZSTD_COMPRESS=y
+CONFIG_ZSTD_DECOMPRESS=y
--- a/drivers/dma/img-mdc-dma.c
+++ b/drivers/dma/img-mdc-dma.c
-@@ -620,25 +620,33 @@ static enum dma_status mdc_tx_status(str
+@@ -618,25 +618,33 @@ static enum dma_status mdc_tx_status(str
(MDC_CMDS_PROCESSED_CMDS_DONE_MASK + 1);
/*
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
-@@ -40,7 +40,8 @@
+@@ -37,7 +37,8 @@
#define SPFI_CONTROL_SOFT_RESET BIT(11)
#define SPFI_CONTROL_SEND_DMA BIT(10)
#define SPFI_CONTROL_GET_DMA BIT(9)
#define SPFI_CONTROL_TMODE_SHIFT 5
#define SPFI_CONTROL_TMODE_MASK 0x7
#define SPFI_CONTROL_TMODE_SINGLE 0
-@@ -51,6 +52,10 @@
+@@ -48,6 +49,10 @@
#define SPFI_TRANSACTION 0x18
#define SPFI_TRANSACTION_TSIZE_SHIFT 16
#define SPFI_TRANSACTION_TSIZE_MASK 0xffff
#define SPFI_PORT_STATE 0x1c
#define SPFI_PORT_STATE_DEV_SEL_SHIFT 20
-@@ -87,6 +92,7 @@
+@@ -84,6 +89,7 @@
*/
#define SPFI_32BIT_FIFO_SIZE 64
#define SPFI_8BIT_FIFO_SIZE 16
struct img_spfi {
struct device *dev;
-@@ -103,6 +109,8 @@ struct img_spfi {
+@@ -100,6 +106,8 @@ struct img_spfi {
struct dma_chan *tx_ch;
bool tx_dma_busy;
bool rx_dma_busy;
};
struct img_spfi_device_data {
-@@ -123,9 +131,11 @@ static inline void spfi_start(struct img
+@@ -120,9 +128,11 @@ static inline void spfi_start(struct img
{
u32 val;
}
static inline void spfi_reset(struct img_spfi *spfi)
-@@ -138,12 +148,21 @@ static int spfi_wait_all_done(struct img
+@@ -135,12 +145,21 @@ static int spfi_wait_all_done(struct img
{
unsigned long timeout = jiffies + msecs_to_jiffies(50);
+++ /dev/null
-From 145f5369510b86cd55c659388a26a0cc267f8874 Mon Sep 17 00:00:00 2001
-From: Ionela Voinescu <ionela.voinescu@imgtec.com>
-Date: Mon, 1 Feb 2016 10:58:08 +0000
-Subject: spi: img-spfi: set device select bits for SPFI port state
-
-Even if the chip select line is not controlled by the SPFI
-hardware, the device select bits need to be set to specify
-the chip select line in use for the hardware to know what
-parameters to use for the current transfer.
-
-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
----
- drivers/spi/spi-img-spfi.c | 3 +++
- 1 file changed, 3 insertions(+)
-
---- a/drivers/spi/spi-img-spfi.c
-+++ b/drivers/spi/spi-img-spfi.c
-@@ -438,6 +438,9 @@ static int img_spfi_prepare(struct spi_m
- u32 val;
-
- val = spfi_readl(spfi, SPFI_PORT_STATE);
-+ val &= ~(SPFI_PORT_STATE_DEV_SEL_MASK <<
-+ SPFI_PORT_STATE_DEV_SEL_SHIFT);
-+ val |= msg->spi->chip_select << SPFI_PORT_STATE_DEV_SEL_SHIFT;
- if (msg->spi->mode & SPI_CPHA)
- val |= SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select);
- else
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
-@@ -437,18 +437,23 @@ static int img_spfi_prepare(struct spi_m
+@@ -434,18 +434,23 @@ static int img_spfi_prepare(struct spi_m
struct img_spfi *spfi = spi_master_get_devdata(master);
u32 val;
spfi_writel(spfi, val, SPFI_PORT_STATE);
return 0;
-@@ -548,11 +553,15 @@ static void img_spfi_config(struct spi_m
+@@ -545,11 +550,15 @@ static void img_spfi_config(struct spi_m
div = DIV_ROUND_UP(clk_get_rate(spfi->spfi_clk), xfer->speed_hz);
div = clamp(512 / (1 << get_count_order(div)), 1, 128);
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
-@@ -346,12 +346,11 @@ static int img_spfi_start_dma(struct spi
+@@ -343,12 +343,11 @@ static int img_spfi_start_dma(struct spi
if (xfer->len % 4 == 0) {
rxconf.src_addr = spfi->phys + SPFI_RX_32BIT_VALID_DATA;
rxconf.src_addr_width = 4;
dmaengine_slave_config(spfi->rx_ch, &rxconf);
rxdesc = dmaengine_prep_slave_sg(spfi->rx_ch, xfer->rx_sg.sgl,
-@@ -370,12 +369,11 @@ static int img_spfi_start_dma(struct spi
+@@ -367,12 +366,11 @@ static int img_spfi_start_dma(struct spi
if (xfer->len % 4 == 0) {
txconf.dst_addr = spfi->phys + SPFI_TX_32BIT_VALID_DATA;
txconf.dst_addr_width = 4;
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
-@@ -83,6 +83,14 @@
+@@ -80,6 +80,14 @@
#define SPFI_INTERRUPT_SDE BIT(1)
#define SPFI_INTERRUPT_SDTRIG BIT(0)
/*
* There are four parallel FIFOs of 16 bytes each. The word buffer
* (*_32BIT_VALID_DATA) accesses all four FIFOs at once, resulting in an
-@@ -144,6 +152,23 @@ static inline void spfi_reset(struct img
+@@ -141,6 +149,23 @@ static inline void spfi_reset(struct img
spfi_writel(spfi, 0, SPFI_CONTROL);
}
static int spfi_wait_all_done(struct img_spfi *spfi)
{
unsigned long timeout = jiffies + msecs_to_jiffies(50);
-@@ -152,19 +177,9 @@ static int spfi_wait_all_done(struct img
+@@ -149,19 +174,9 @@ static int spfi_wait_all_done(struct img
return 0;
while (time_before(jiffies, timeout)) {
cpu_relax();
}
-@@ -296,6 +311,8 @@ static int img_spfi_start_pio(struct spi
+@@ -293,6 +308,8 @@ static int img_spfi_start_pio(struct spi
}
ret = spfi_wait_all_done(spfi);
if (ret < 0)
return ret;
-@@ -311,8 +328,10 @@ static void img_spfi_dma_rx_cb(void *dat
+@@ -308,8 +325,10 @@ static void img_spfi_dma_rx_cb(void *dat
spin_lock_irqsave(&spfi->lock, flags);
spfi->rx_dma_busy = false;
spin_unlock_irqrestore(&spfi->lock, flags);
}
-@@ -325,8 +344,10 @@ static void img_spfi_dma_tx_cb(void *dat
+@@ -322,8 +341,10 @@ static void img_spfi_dma_tx_cb(void *dat
spin_lock_irqsave(&spfi->lock, flags);
spfi->tx_dma_busy = false;
+++ /dev/null
-From b46f8c74afdd30cd52bfdcc2231470a0bab04416 Mon Sep 17 00:00:00 2001
-From: James Hogan <james.hogan@imgtec.com>
-Date: Fri, 22 Apr 2016 18:22:45 +0100
-Subject: clockevents: Retry programming min delta up to 10 times
-
-Under virtualisation it is possible to get unexpected latency during a
-clockevent device's set_next_event() callback which can make it return
--ETIME even for a delta based on min_delta_ns.
-
-The clockevents_program_min_delta() implementation for
-CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=n doesn't handle retries when this
-happens, nor does clockevents_program_event() or its callers when force
-is true (for example hrtimer_reprogram()). This can result in hangs
-until the clock event device does a full period.
-
-It isn't appropriate to use MIN_ADJUST in this case as occasional
-hypervisor induced high latency will cause min_delta_ns to quickly
-increase to the maximum.
-Instead, borrow the retry pattern from the MIN_ADJUST case, but without
-making adjustments. We retry up to 10 times before giving up.
-
-(picked https://patchwork.kernel.org/patch/8909491/)
-
-Signed-off-by: James Hogan <james.hogan@imgtec.com>
----
- kernel/time/clockevents.c | 26 +++++++++++++++++++-------
- 1 file changed, 19 insertions(+), 7 deletions(-)
-
---- a/kernel/time/clockevents.c
-+++ b/kernel/time/clockevents.c
-@@ -281,16 +281,28 @@ static int clockevents_program_min_delta
- {
- unsigned long long clc;
- int64_t delta;
-+ int i;
-
-- delta = dev->min_delta_ns;
-- dev->next_event = ktime_add_ns(ktime_get(), delta);
-+ for (i = 0;;) {
-+ delta = dev->min_delta_ns;
-+ dev->next_event = ktime_add_ns(ktime_get(), delta);
-
-- if (clockevent_state_shutdown(dev))
-- return 0;
-+ if (clockevent_state_shutdown(dev))
-+ return 0;
-
-- dev->retries++;
-- clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
-- return dev->set_next_event((unsigned long) clc, dev);
-+ dev->retries++;
-+ clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
-+ if (dev->set_next_event((unsigned long) clc, dev) == 0)
-+ return 0;
-+
-+ if (++i > 9) {
-+ /*
-+ * We tried 10 times to program the device with the
-+ * given min_delta_ns. Get out of here.
-+ */
-+ return -ETIME;
-+ }
-+ }
- }
-
- #endif /* CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST */
--- a/drivers/clk/pistachio/clk-pistachio.c
+++ b/drivers/clk/pistachio/clk-pistachio.c
-@@ -44,7 +44,7 @@ static struct pistachio_gate pistachio_g
+@@ -41,7 +41,7 @@ static struct pistachio_gate pistachio_g
GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal", "sys_internal_div",
0x104, 22),
GATE(CLK_AUX_ADC, "aux_adc", "aux_adc_div", 0x104, 23),
GATE(CLK_BT, "bt", "bt_div", 0x104, 25),
GATE(CLK_BT_DIV4, "bt_div4", "bt_div4_div", 0x104, 26),
GATE(CLK_BT_DIV8, "bt_div8", "bt_div8_div", 0x104, 27),
-@@ -54,6 +54,7 @@ static struct pistachio_gate pistachio_g
+@@ -51,6 +51,7 @@ static struct pistachio_gate pistachio_g
static struct pistachio_fixed_factor pistachio_ffs[] __initdata = {
FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4", "wifi_pll", 4),
FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8", "wifi_pll", 8),
static struct pistachio_div pistachio_divs[] __initdata = {
--- a/include/dt-bindings/clock/pistachio-clk.h
+++ b/include/dt-bindings/clock/pistachio-clk.h
-@@ -21,6 +21,7 @@
+@@ -18,6 +18,7 @@
/* Fixed-factor clocks */
#define CLK_WIFI_DIV4 16
#define CLK_WIFI_DIV8 17
--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
-@@ -120,7 +120,7 @@
+@@ -117,7 +117,7 @@
&sdhost {
status = "okay";
disable-wp;
};
-@@ -130,6 +130,7 @@
+@@ -127,6 +127,7 @@
&pin_sdhost_data {
drive-strength = <2>;
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -2671,6 +2671,7 @@ int spi_nor_scan(struct spi_nor *nor, co
- struct device *dev = nor->dev;
+@@ -4931,6 +4931,7 @@ int spi_nor_scan(struct spi_nor *nor, co
struct mtd_info *mtd = &nor->mtd;
struct device_node *np = spi_nor_get_flash_node(nor);
+ struct spi_nor_flash_parameter *params = &nor->params;
+ const char __maybe_unused *of_mtd_name = NULL;
int ret;
int i;
-@@ -2746,7 +2747,12 @@ int spi_nor_scan(struct spi_nor *nor, co
- spi_nor_wait_till_ready(nor);
- }
+@@ -4993,7 +4994,12 @@ int spi_nor_scan(struct spi_nor *nor, co
+ /* Init flash parameters based on flash_info struct and SFDP */
+ spi_nor_init_params(nor);
- if (!mtd->name)
+#ifdef CONFIG_MTD_OF_PARTS
+++ /dev/null
-From 42ebff638003be18fab503b37de4ad7853244e95 Mon Sep 17 00:00:00 2001
-From: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
-Date: Sat, 25 Feb 2017 15:58:22 +0000
-Subject: mtd: nand: Check length of ID before reading bits per cell
-
-The table-based NAND identification currently reads the number
-of bits per cell from the 3rd byte of the extended ID. This is done
-for the so-called 'full ID' devices; i.e. devices that have a known
-length ID.
-
-However, if the ID length is shorter than three, there's no 3rd byte,
-and so it's wrong to read the bits per cell from there. Fix this by
-adding a check for the ID length.
-
-(picked from http://lists.infradead.org/pipermail/linux-mtd/2014-December/056764.html)
-
-Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
----
- drivers/mtd/nand/nand_base.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
---- a/drivers/mtd/nand/nand_base.c
-+++ b/drivers/mtd/nand/nand_base.c
-@@ -3803,7 +3803,8 @@ static bool find_full_id_nand(struct nan
- mtd->erasesize = type->erasesize;
- mtd->oobsize = type->oobsize;
-
-- chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]);
-+ if (type->id_len > 2)
-+ chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]);
- chip->chipsize = (uint64_t)type->chipsize << 20;
- chip->options |= type->options;
- chip->ecc_strength_ds = NAND_ECC_STRENGTH(type);
+++ /dev/null
-From a4bc33b205fd9b1db862f1e45173dba57b0fa57f Mon Sep 17 00:00:00 2001
-From: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
-Date: Sat, 25 Feb 2017 15:43:09 +0000
-Subject: mtd: nand: Add JEDEC manufacturer ID for Gigadevice
-
-This commit adds Gigadevice to the list of manufacturer ID and name strings.
-
-(picked from http://lists.infradead.org/pipermail/linux-mtd/2014-December/056765.html)
-
-Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
----
- drivers/mtd/nand/nand_ids.c | 1 +
- include/linux/mtd/rawnand.h | 1 +
- 2 files changed, 2 insertions(+)
-
---- a/drivers/mtd/nand/nand_ids.c
-+++ b/drivers/mtd/nand/nand_ids.c
-@@ -184,6 +184,7 @@ static const struct nand_manufacturer na
- {NAND_MFR_SANDISK, "SanDisk"},
- {NAND_MFR_INTEL, "Intel"},
- {NAND_MFR_ATO, "ATO"},
-+ {NAND_MFR_GIGADEVICE, "Gigadevice"},
- {NAND_MFR_WINBOND, "Winbond"},
- };
-
---- a/include/linux/mtd/rawnand.h
-+++ b/include/linux/mtd/rawnand.h
-@@ -1014,6 +1014,7 @@ static inline void *nand_get_manufacture
- #define NAND_MFR_SANDISK 0x45
- #define NAND_MFR_INTEL 0x89
- #define NAND_MFR_ATO 0x9b
-+#define NAND_MFR_GIGADEVICE 0xc8
- #define NAND_MFR_WINBOND 0xef
-
-
+++ /dev/null
-From 082a89a78e29b15008284df90441747cb742f149 Mon Sep 17 00:00:00 2001
-From: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
-Date: Tue, 2 Dec 2014 09:58:52 -0300
-Subject: mtd: Introduce SPI NAND framework
-
-Add a new framework, to support SPI NAND devices. The framework registers
-a NAND chip and handles the generic SPI NAND protocol, calling device-specific
-hooks for each SPI NAND command.
-
-The following is the stack design, from userspace to hardware. This commit
-adds the "SPI NAND core" layer.
-
- Userspace
- ------------------
- MTD
- ------------------
- NAND core
- ------------------
- SPI NAND core
- ------------------
- SPI NAND device
- ------------------
- SPI core
- ------------------
- SPI master
- ------------------
- Hardware
-
-(based on http://lists.infradead.org/pipermail/linux-mtd/2014-December/056763.html)
-
-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
-Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
-Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com>
----
- drivers/mtd/Kconfig | 2 +
- drivers/mtd/Makefile | 1 +
- drivers/mtd/spi-nand/Kconfig | 7 +
- drivers/mtd/spi-nand/Makefile | 1 +
- drivers/mtd/spi-nand/spi-nand-base.c | 566 +++++++++++++++++++++++++++++++++++
- include/linux/mtd/spi-nand.h | 54 ++++
- 6 files changed, 631 insertions(+)
- create mode 100644 drivers/mtd/spi-nand/Kconfig
- create mode 100644 drivers/mtd/spi-nand/Makefile
- create mode 100644 drivers/mtd/spi-nand/spi-nand-base.c
- create mode 100644 include/linux/mtd/spi-nand.h
-
---- a/drivers/mtd/Kconfig
-+++ b/drivers/mtd/Kconfig
-@@ -373,6 +373,8 @@ source "drivers/mtd/onenand/Kconfig"
-
- source "drivers/mtd/lpddr/Kconfig"
-
-+source "drivers/mtd/spi-nand/Kconfig"
-+
- source "drivers/mtd/spi-nor/Kconfig"
-
- source "drivers/mtd/ubi/Kconfig"
---- a/drivers/mtd/Makefile
-+++ b/drivers/mtd/Makefile
-@@ -37,6 +37,7 @@ inftl-objs := inftlcore.o inftlmount.o
-
- obj-y += chips/ lpddr/ maps/ devices/ nand/ onenand/ tests/
-
-+obj-$(CONFIG_MTD_SPI_NAND) += spi-nand/
- obj-$(CONFIG_MTD_SPI_NOR) += spi-nor/
- obj-$(CONFIG_MTD_UBI) += ubi/
-
---- /dev/null
-+++ b/drivers/mtd/spi-nand/Kconfig
-@@ -0,0 +1,7 @@
-+menuconfig MTD_SPI_NAND
-+ tristate "SPI NAND device support"
-+ depends on MTD
-+ select MTD_NAND
-+ help
-+ This is the framework for the SPI NAND.
-+
---- /dev/null
-+++ b/drivers/mtd/spi-nand/Makefile
-@@ -0,0 +1 @@
-+obj-$(CONFIG_MTD_SPI_NAND) += spi-nand-base.o
---- /dev/null
-+++ b/drivers/mtd/spi-nand/spi-nand-base.c
-@@ -0,0 +1,566 @@
-+/*
-+ * Copyright (C) 2014 Imagination Technologies Ltd.
-+ *
-+ * 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; version 2 of the License.
-+ *
-+ * Notes:
-+ * 1. Erase and program operations need to call write_enable() first,
-+ * to clear the enable bit. This bit is cleared automatically after
-+ * the erase or program operation.
-+ *
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/errno.h>
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/mtd/rawnand.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/mtd/spi-nand.h>
-+#include <linux/of.h>
-+#include <linux/slab.h>
-+
-+/* Registers common to all devices */
-+#define SPI_NAND_LOCK_REG 0xa0
-+#define SPI_NAND_PROT_UNLOCK_ALL 0x0
-+
-+#define SPI_NAND_FEATURE_REG 0xb0
-+#define SPI_NAND_ECC_EN BIT(4)
-+#define SPI_NAND_QUAD_EN BIT(0)
-+
-+#define SPI_NAND_STATUS_REG 0xc0
-+#define SPI_NAND_STATUS_REG_ECC_MASK 0x3
-+#define SPI_NAND_STATUS_REG_ECC_SHIFT 4
-+#define SPI_NAND_STATUS_REG_PROG_FAIL BIT(3)
-+#define SPI_NAND_STATUS_REG_ERASE_FAIL BIT(2)
-+#define SPI_NAND_STATUS_REG_WREN BIT(1)
-+#define SPI_NAND_STATUS_REG_BUSY BIT(0)
-+
-+#define SPI_NAND_CMD_BUF_LEN 8
-+
-+/* Rewind and fill the buffer with 0xff */
-+static void spi_nand_clear_buffer(struct spi_nand *snand)
-+{
-+ snand->buf_start = 0;
-+ memset(snand->data_buf, 0xff, snand->buf_size);
-+}
-+
-+static int spi_nand_enable_ecc(struct spi_nand *snand)
-+{
-+ int ret;
-+
-+ ret = snand->read_reg(snand, SPI_NAND_FEATURE_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+
-+ snand->buf[0] |= SPI_NAND_ECC_EN;
-+ ret = snand->write_reg(snand, SPI_NAND_FEATURE_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+ snand->ecc = true;
-+
-+ return 0;
-+}
-+
-+static int spi_nand_disable_ecc(struct spi_nand *snand)
-+{
-+ int ret;
-+
-+ ret = snand->read_reg(snand, SPI_NAND_FEATURE_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+
-+ snand->buf[0] &= ~SPI_NAND_ECC_EN;
-+ ret = snand->write_reg(snand, SPI_NAND_FEATURE_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+ snand->ecc = false;
-+
-+ return 0;
-+}
-+
-+static int spi_nand_enable_quad(struct spi_nand *snand)
-+{
-+ int ret;
-+
-+ ret = snand->read_reg(snand, SPI_NAND_FEATURE_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+
-+ snand->buf[0] |= SPI_NAND_QUAD_EN;
-+ ret = snand->write_reg(snand, SPI_NAND_FEATURE_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+
-+ return 0;
-+}
-+/*
-+ * Wait until the status register busy bit is cleared.
-+ * Returns a negatie errno on error or time out, and a non-negative status
-+ * value if the device is ready.
-+ */
-+static int spi_nand_wait_till_ready(struct spi_nand *snand)
-+{
-+ unsigned long deadline = jiffies + msecs_to_jiffies(100);
-+ bool timeout = false;
-+ int ret;
-+
-+ /*
-+ * Perhaps we should set a different timeout for each
-+ * operation (reset, read, write, erase).
-+ */
-+ while (!timeout) {
-+ if (time_after_eq(jiffies, deadline))
-+ timeout = true;
-+
-+ ret = snand->read_reg(snand, SPI_NAND_STATUS_REG, snand->buf);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error reading status register\n");
-+ return ret;
-+ } else if (!(snand->buf[0] & SPI_NAND_STATUS_REG_BUSY)) {
-+ return snand->buf[0];
-+ }
-+
-+ cond_resched();
-+ }
-+
-+ dev_err(snand->dev, "operation timed out\n");
-+
-+ return -ETIMEDOUT;
-+}
-+
-+static int spi_nand_reset(struct spi_nand *snand)
-+{
-+ int ret;
-+
-+ ret = snand->reset(snand);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "reset command failed\n");
-+ return ret;
-+ }
-+
-+ /*
-+ * The NAND core won't wait after a device reset, so we need
-+ * to do that here.
-+ */
-+ ret = spi_nand_wait_till_ready(snand);
-+ if (ret < 0)
-+ return ret;
-+ return 0;
-+}
-+
-+static int spi_nand_status(struct spi_nand *snand)
-+{
-+ int ret, status;
-+
-+ ret = snand->read_reg(snand, SPI_NAND_STATUS_REG, snand->buf);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error reading status register\n");
-+ return ret;
-+ }
-+ status = snand->buf[0];
-+
-+ /* Convert this into standard NAND_STATUS values */
-+ if (status & SPI_NAND_STATUS_REG_BUSY)
-+ snand->buf[0] = 0;
-+ else
-+ snand->buf[0] = NAND_STATUS_READY;
-+
-+ if (status & SPI_NAND_STATUS_REG_PROG_FAIL ||
-+ status & SPI_NAND_STATUS_REG_ERASE_FAIL)
-+ snand->buf[0] |= NAND_STATUS_FAIL;
-+
-+ /*
-+ * Since we unlock the entire device at initialization, unconditionally
-+ * set the WP bit to indicate it's not protected.
-+ */
-+ snand->buf[0] |= NAND_STATUS_WP;
-+ return 0;
-+}
-+
-+static int spi_nand_erase(struct spi_nand *snand, int page_addr)
-+{
-+ int ret;
-+
-+ ret = snand->write_enable(snand);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "write enable command failed\n");
-+ return ret;
-+ }
-+
-+ ret = snand->block_erase(snand, page_addr);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "block erase command failed\n");
-+ return ret;
-+ }
-+
-+ return 0;
-+}
-+
-+static int spi_nand_write(struct spi_nand *snand)
-+{
-+ int ret;
-+
-+ /* Enable quad mode */
-+ ret = spi_nand_enable_quad(snand);
-+ if (ret) {
-+ dev_err(snand->dev, "error %d enabling quad mode\n", ret);
-+ return ret;
-+ }
-+ /* Store the page to cache */
-+ ret = snand->store_cache(snand, 0, snand->buf_size, snand->data_buf);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error %d storing page 0x%x to cache\n",
-+ ret, snand->page_addr);
-+ return ret;
-+ }
-+
-+ ret = snand->write_enable(snand);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "write enable command failed\n");
-+ return ret;
-+ }
-+
-+ /* Get page from the device cache into our internal buffer */
-+ ret = snand->write_page(snand, snand->page_addr);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error %d reading page 0x%x from cache\n",
-+ ret, snand->page_addr);
-+ return ret;
-+ }
-+
-+ return 0;
-+}
-+
-+static int spi_nand_read_id(struct spi_nand *snand)
-+{
-+ int ret;
-+
-+ ret = snand->read_id(snand, snand->data_buf);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error %d reading ID\n", ret);
-+ return ret;
-+ }
-+ return 0;
-+}
-+
-+static int spi_nand_read_page(struct spi_nand *snand, unsigned int page_addr,
-+ unsigned int page_offset, size_t length)
-+{
-+ unsigned int corrected = 0, ecc_error = 0;
-+ int ret;
-+
-+ /* Load a page into the cache register */
-+ ret = snand->load_page(snand, page_addr);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error %d loading page 0x%x to cache\n",
-+ ret, page_addr);
-+ return ret;
-+ }
-+
-+ ret = spi_nand_wait_till_ready(snand);
-+ if (ret < 0)
-+ return ret;
-+
-+ if (snand->ecc) {
-+ snand->get_ecc_status(ret, &corrected, &ecc_error);
-+ snand->bitflips = corrected;
-+
-+ /*
-+ * If there's an ECC error, print a message and notify MTD
-+ * about it. Then complete the read, to load actual data on
-+ * the buffer (instead of the status result).
-+ */
-+ if (ecc_error) {
-+ dev_err(snand->dev,
-+ "internal ECC error reading page 0x%x\n",
-+ page_addr);
-+ snand->nand_chip.mtd.ecc_stats.failed++;
-+ } else {
-+ snand->nand_chip.mtd.ecc_stats.corrected += corrected;
-+ }
-+ }
-+
-+ /* Enable quad mode */
-+ ret = spi_nand_enable_quad(snand);
-+ if (ret) {
-+ dev_err(snand->dev, "error %d enabling quad mode\n", ret);
-+ return ret;
-+ }
-+ /* Get page from the device cache into our internal buffer */
-+ ret = snand->read_cache(snand, page_offset, length, snand->data_buf);
-+ if (ret < 0) {
-+ dev_err(snand->dev, "error %d reading page 0x%x from cache\n",
-+ ret, page_addr);
-+ return ret;
-+ }
-+ return 0;
-+}
-+
-+static u8 spi_nand_read_byte(struct mtd_info *mtd)
-+{
-+ struct nand_chip *chip = mtd_to_nand(mtd);
-+ struct spi_nand *snand = nand_get_controller_data(chip);
-+ char val = 0xff;
-+
-+ if (snand->buf_start < snand->buf_size)
-+ val = snand->data_buf[snand->buf_start++];
-+ return val;
-+}
-+
-+static void spi_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
-+{
-+ struct nand_chip *chip = mtd_to_nand(mtd);
-+ struct spi_nand *snand = nand_get_controller_data(chip);
-+ size_t n = min_t(size_t, len, snand->buf_size - snand->buf_start);
-+
-+ memcpy(snand->data_buf + snand->buf_start, buf, n);
-+ snand->buf_start += n;
-+}
-+
-+static void spi_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
-+{
-+ struct nand_chip *chip = mtd_to_nand(mtd);
-+ struct spi_nand *snand = nand_get_controller_data(chip);
-+ size_t n = min_t(size_t, len, snand->buf_size - snand->buf_start);
-+
-+ memcpy(buf, snand->data_buf + snand->buf_start, n);
-+ snand->buf_start += n;
-+}
-+
-+static int spi_nand_write_page_hwecc(struct mtd_info *mtd,
-+ struct nand_chip *chip, const uint8_t *buf, int oob_required,
-+ int page)
-+{
-+ chip->write_buf(mtd, buf, mtd->writesize);
-+ chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
-+
-+ return 0;
-+}
-+
-+static int spi_nand_read_page_hwecc(struct mtd_info *mtd,
-+ struct nand_chip *chip, uint8_t *buf, int oob_required,
-+ int page)
-+{
-+ struct spi_nand *snand = nand_get_controller_data(chip);
-+
-+ chip->read_buf(mtd, buf, mtd->writesize);
-+ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
-+
-+ return snand->bitflips;
-+}
-+
-+static int spi_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *chip)
-+{
-+ struct spi_nand *snand = nand_get_controller_data(chip);
-+ int ret;
-+
-+ ret = spi_nand_wait_till_ready(snand);
-+
-+ if (ret < 0) {
-+ return NAND_STATUS_FAIL;
-+ } else if (ret & SPI_NAND_STATUS_REG_PROG_FAIL) {
-+ dev_err(snand->dev, "page program failed\n");
-+ return NAND_STATUS_FAIL;
-+ } else if (ret & SPI_NAND_STATUS_REG_ERASE_FAIL) {
-+ dev_err(snand->dev, "block erase failed\n");
-+ return NAND_STATUS_FAIL;
-+ }
-+
-+ return NAND_STATUS_READY;
-+}
-+
-+static void spi_nand_cmdfunc(struct mtd_info *mtd, unsigned int command,
-+ int column, int page_addr)
-+{
-+ struct nand_chip *chip = mtd_to_nand(mtd);
-+ struct spi_nand *snand = nand_get_controller_data(chip);
-+
-+ /*
-+ * In case there's any unsupported command, let's make sure
-+ * we don't keep garbage around in the buffer.
-+ */
-+ if (command != NAND_CMD_PAGEPROG) {
-+ spi_nand_clear_buffer(snand);
-+ snand->page_addr = 0;
-+ }
-+
-+ switch (command) {
-+ case NAND_CMD_READ0:
-+ spi_nand_read_page(snand, page_addr, 0, mtd->writesize);
-+ break;
-+ case NAND_CMD_READOOB:
-+ spi_nand_disable_ecc(snand);
-+ spi_nand_read_page(snand, page_addr, mtd->writesize,
-+ mtd->oobsize);
-+ spi_nand_enable_ecc(snand);
-+ break;
-+ case NAND_CMD_READID:
-+ spi_nand_read_id(snand);
-+ break;
-+ case NAND_CMD_ERASE1:
-+ spi_nand_erase(snand, page_addr);
-+ break;
-+ case NAND_CMD_ERASE2:
-+ /* There's nothing to do here, as the erase is one-step */
-+ break;
-+ case NAND_CMD_SEQIN:
-+ snand->buf_start = column;
-+ snand->page_addr = page_addr;
-+ break;
-+ case NAND_CMD_PAGEPROG:
-+ spi_nand_write(snand);
-+ break;
-+ case NAND_CMD_STATUS:
-+ spi_nand_status(snand);
-+ break;
-+ case NAND_CMD_RESET:
-+ spi_nand_reset(snand);
-+ break;
-+ default:
-+ dev_err(&mtd->dev, "unknown command 0x%x\n", command);
-+ }
-+}
-+
-+static void spi_nand_select_chip(struct mtd_info *mtd, int chip)
-+{
-+ /* We need this to override the default */
-+}
-+
-+int spi_nand_check(struct spi_nand *snand)
-+{
-+ if (!snand->dev)
-+ return -ENODEV;
-+ if (!snand->read_cache)
-+ return -ENODEV;
-+ if (!snand->load_page)
-+ return -ENODEV;
-+ if (!snand->store_cache)
-+ return -ENODEV;
-+ if (!snand->write_page)
-+ return -ENODEV;
-+ if (!snand->write_reg)
-+ return -ENODEV;
-+ if (!snand->read_reg)
-+ return -ENODEV;
-+ if (!snand->block_erase)
-+ return -ENODEV;
-+ if (!snand->reset)
-+ return -ENODEV;
-+ if (!snand->write_enable)
-+ return -ENODEV;
-+ if (!snand->write_disable)
-+ return -ENODEV;
-+ if (!snand->get_ecc_status)
-+ return -ENODEV;
-+ return 0;
-+}
-+
-+int spi_nand_register(struct spi_nand *snand, struct nand_flash_dev *flash_ids)
-+{
-+ struct nand_chip *chip = &snand->nand_chip;
-+ struct mtd_info *mtd = nand_to_mtd(chip);
-+ struct device_node *np = snand->dev->of_node;
-+ const char __maybe_unused *of_mtd_name = NULL;
-+ int ret;
-+
-+ /* Let's check all the hooks are in-place so we don't panic later */
-+ ret = spi_nand_check(snand);
-+ if (ret)
-+ return ret;
-+
-+ nand_set_controller_data(chip, snand);
-+ nand_set_flash_node(chip, np);
-+ chip->read_buf = spi_nand_read_buf;
-+ chip->write_buf = spi_nand_write_buf;
-+ chip->read_byte = spi_nand_read_byte;
-+ chip->cmdfunc = spi_nand_cmdfunc;
-+ chip->waitfunc = spi_nand_waitfunc;
-+ chip->select_chip = spi_nand_select_chip;
-+ chip->options |= NAND_NO_SUBPAGE_WRITE;
-+ chip->bits_per_cell = 1;
-+
-+ mtd_set_ooblayout(mtd, snand->ooblayout);
-+ chip->ecc.read_page = spi_nand_read_page_hwecc;
-+ chip->ecc.write_page = spi_nand_write_page_hwecc;
-+ chip->ecc.mode = NAND_ECC_HW;
-+
-+ if (of_property_read_bool(np, "nand-on-flash-bbt"))
-+ chip->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
-+
-+#ifdef CONFIG_MTD_OF_PARTS
-+ of_property_read_string(np, "linux,mtd-name", &of_mtd_name);
-+#endif
-+ if (of_mtd_name)
-+ mtd->name = of_mtd_name;
-+ else
-+ mtd->name = snand->name;
-+ mtd->owner = THIS_MODULE;
-+
-+ /* Allocate buffer to be used to read/write the internal registers */
-+ snand->buf = kmalloc(SPI_NAND_CMD_BUF_LEN, GFP_KERNEL);
-+ if (!snand->buf)
-+ return -ENOMEM;
-+
-+ /* This is enabled at device power up but we'd better make sure */
-+ ret = spi_nand_enable_ecc(snand);
-+ if (ret)
-+ return ret;
-+
-+ /* Preallocate buffer for flash identification (NAND_CMD_READID) */
-+ snand->buf_size = SPI_NAND_CMD_BUF_LEN;
-+ snand->data_buf = kmalloc(snand->buf_size, GFP_KERNEL);
-+
-+ ret = nand_scan_ident(mtd, 1, flash_ids);
-+ if (ret)
-+ return ret;
-+
-+ /*
-+ * SPI NAND has on-die ECC, which means we can correct as much as
-+ * we are required to. This must be done after identification of
-+ * the device.
-+ */
-+ chip->ecc.strength = chip->ecc_strength_ds;
-+ chip->ecc.size = chip->ecc_step_ds;
-+
-+ /*
-+ * Unlock all the device before calling nand_scan_tail. This is needed
-+ * in case the in-flash bad block table needs to be created.
-+ * We could override __nand_unlock(), but since it's not currently used
-+ * by the NAND core we call this explicitly.
-+ */
-+ snand->buf[0] = SPI_NAND_PROT_UNLOCK_ALL;
-+ ret = snand->write_reg(snand, SPI_NAND_LOCK_REG, snand->buf);
-+ if (ret)
-+ return ret;
-+
-+ /* Free the buffer and allocate a good one, to fit a page plus OOB */
-+ kfree(snand->data_buf);
-+
-+ snand->buf_size = mtd->writesize + mtd->oobsize;
-+ snand->data_buf = kmalloc(snand->buf_size, GFP_KERNEL);
-+ if (!snand->data_buf)
-+ return -ENOMEM;
-+
-+ ret = nand_scan_tail(mtd);
-+ if (ret)
-+ return ret;
-+
-+ return mtd_device_register(mtd, NULL, 0);
-+}
-+EXPORT_SYMBOL_GPL(spi_nand_register);
-+
-+void spi_nand_unregister(struct spi_nand *snand)
-+{
-+ kfree(snand->buf);
-+ kfree(snand->data_buf);
-+}
-+EXPORT_SYMBOL_GPL(spi_nand_unregister);
-+
-+MODULE_AUTHOR("Ezequiel Garcia <ezequiel.garcia@imgtec.com>");
-+MODULE_DESCRIPTION("Framework for SPI NAND");
-+MODULE_LICENSE("GPL v2");
---- /dev/null
-+++ b/include/linux/mtd/spi-nand.h
-@@ -0,0 +1,54 @@
-+/*
-+ * Copyright (C) 2014 Imagination Technologies Ltd.
-+ *
-+ * 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; version 2 of the License.
-+ */
-+
-+#ifndef __LINUX_MTD_SPI_NAND_H
-+#define __LINUX_MTD_SPI_NAND_H
-+
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/rawnand.h>
-+
-+struct spi_nand {
-+ struct nand_chip nand_chip;
-+ struct device *dev;
-+ const char *name;
-+
-+ u8 *buf, *data_buf;
-+ size_t buf_size;
-+ off_t buf_start;
-+ unsigned int page_addr;
-+ unsigned int bitflips;
-+ bool ecc;
-+ struct mtd_ooblayout_ops *ooblayout;
-+
-+ int (*reset)(struct spi_nand *snand);
-+ int (*read_id)(struct spi_nand *snand, u8 *buf);
-+
-+ int (*write_disable)(struct spi_nand *snand);
-+ int (*write_enable)(struct spi_nand *snand);
-+
-+ int (*read_reg)(struct spi_nand *snand, u8 opcode, u8 *buf);
-+ int (*write_reg)(struct spi_nand *snand, u8 opcode, u8 *buf);
-+ void (*get_ecc_status)(unsigned int status,
-+ unsigned int *corrected,
-+ unsigned int *ecc_errors);
-+
-+ int (*store_cache)(struct spi_nand *snand, unsigned int page_offset,
-+ size_t length, u8 *write_buf);
-+ int (*write_page)(struct spi_nand *snand, unsigned int page_addr);
-+ int (*load_page)(struct spi_nand *snand, unsigned int page_addr);
-+ int (*read_cache)(struct spi_nand *snand, unsigned int page_offset,
-+ size_t length, u8 *read_buf);
-+ int (*block_erase)(struct spi_nand *snand, unsigned int page_addr);
-+
-+ void *priv;
-+};
-+
-+int spi_nand_register(struct spi_nand *snand, struct nand_flash_dev *flash_ids);
-+void spi_nand_unregister(struct spi_nand *snand);
-+
-+#endif
+++ /dev/null
-From 7723e59d483a883578115a73eb87eb7fff0ff724 Mon Sep 17 00:00:00 2001
-From: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
-Date: Tue, 28 Feb 2017 10:37:24 +0000
-Subject: mtd: spi-nand: Support Gigadevice GD5F
-
-This commit uses the recently introduced SPI NAND framework to support
-the Gigadevice GD5F serial NAND device.
-
-The current support includes:
-
- * Page read and page program operations (using on-die ECC)
- * Page out-of-band read
- * Erase
- * Reset
- * Device status retrieval
- * Device ID retrieval
-
-(based on http://lists.infradead.org/pipermail/linux-mtd/2014-December/056769.html)
-
-Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
-Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com>
----
- drivers/mtd/spi-nand/Kconfig | 10 +
- drivers/mtd/spi-nand/Makefile | 1 +
- drivers/mtd/spi-nand/spi-nand-device.c | 472 +++++++++++++++++++++++++++++++++
- 3 files changed, 483 insertions(+)
- create mode 100644 drivers/mtd/spi-nand/spi-nand-device.c
-
---- a/drivers/mtd/spi-nand/Kconfig
-+++ b/drivers/mtd/spi-nand/Kconfig
-@@ -5,3 +5,13 @@ menuconfig MTD_SPI_NAND
- help
- This is the framework for the SPI NAND.
-
-+if MTD_SPI_NAND
-+
-+config MTD_SPI_NAND_DEVICES
-+ tristate "Support for SPI NAND devices"
-+ default y
-+ depends on MTD_SPI_NAND
-+ help
-+ Select this option if you require support for SPI NAND devices.
-+
-+endif # MTD_SPI_NAND
---- a/drivers/mtd/spi-nand/Makefile
-+++ b/drivers/mtd/spi-nand/Makefile
-@@ -1 +1,2 @@
- obj-$(CONFIG_MTD_SPI_NAND) += spi-nand-base.o
-+obj-$(CONFIG_MTD_SPI_NAND_DEVICES) += spi-nand-device.o
---- /dev/null
-+++ b/drivers/mtd/spi-nand/spi-nand-device.c
-@@ -0,0 +1,472 @@
-+/*
-+ * Copyright (C) 2014 Imagination Technologies Ltd.
-+ *
-+ * 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; version 2 of the License.
-+ *
-+ * Notes:
-+ * 1. We avoid using a stack-allocated buffer for SPI messages. Using
-+ * a kmalloced buffer is probably better, given we shouldn't assume
-+ * any particular usage by SPI core.
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/errno.h>
-+#include <linux/module.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/mtd/spi-nand.h>
-+#include <linux/sizes.h>
-+#include <linux/spi/spi.h>
-+
-+/* SPI NAND commands */
-+#define SPI_NAND_WRITE_ENABLE 0x06
-+#define SPI_NAND_WRITE_DISABLE 0x04
-+#define SPI_NAND_GET_FEATURE 0x0f
-+#define SPI_NAND_SET_FEATURE 0x1f
-+#define SPI_NAND_PAGE_READ 0x13
-+#define SPI_NAND_READ_CACHE 0x03
-+#define SPI_NAND_FAST_READ_CACHE 0x0b
-+#define SPI_NAND_READ_CACHE_X2 0x3b
-+#define SPI_NAND_READ_CACHE_X4 0x6b
-+#define SPI_NAND_READ_CACHE_DUAL_IO 0xbb
-+#define SPI_NAND_READ_CACHE_QUAD_IO 0xeb
-+#define SPI_NAND_READ_ID 0x9f
-+#define SPI_NAND_PROGRAM_LOAD 0x02
-+#define SPI_NAND_PROGRAM_LOAD4 0x32
-+#define SPI_NAND_PROGRAM_EXEC 0x10
-+#define SPI_NAND_PROGRAM_LOAD_RANDOM 0x84
-+#define SPI_NAND_PROGRAM_LOAD_RANDOM4 0xc4
-+#define SPI_NAND_BLOCK_ERASE 0xd8
-+#define SPI_NAND_RESET 0xff
-+
-+#define SPI_NAND_GD5F_READID_LEN 2
-+
-+#define SPI_NAND_GD5F_ECC_MASK (BIT(0) | BIT(1) | BIT(2))
-+#define SPI_NAND_GD5F_ECC_UNCORR (BIT(0) | BIT(1) | BIT(2))
-+#define SPI_NAND_GD5F_ECC_SHIFT 4
-+
-+static int spi_nand_gd5f_ooblayout_256_ecc(struct mtd_info *mtd, int section,
-+ struct mtd_oob_region *oobregion)
-+{
-+ if (section)
-+ return -ERANGE;
-+
-+ oobregion->offset = 128;
-+ oobregion->length = 128;
-+
-+ return 0;
-+}
-+
-+static int spi_nand_gd5f_ooblayout_256_free(struct mtd_info *mtd, int section,
-+ struct mtd_oob_region *oobregion)
-+{
-+ if (section)
-+ return -ERANGE;
-+
-+ oobregion->offset = 1;
-+ oobregion->length = 127;
-+
-+ return 0;
-+}
-+
-+static const struct mtd_ooblayout_ops spi_nand_gd5f_oob_256_ops = {
-+ .ecc = spi_nand_gd5f_ooblayout_256_ecc,
-+ .free = spi_nand_gd5f_ooblayout_256_free,
-+};
-+
-+static struct nand_flash_dev spi_nand_flash_ids[] = {
-+ {
-+ .name = "SPI NAND 512MiB 3,3V",
-+ .id = { NAND_MFR_GIGADEVICE, 0xb4 },
-+ .chipsize = 512,
-+ .pagesize = SZ_4K,
-+ .erasesize = SZ_256K,
-+ .id_len = 2,
-+ .oobsize = 256,
-+ .ecc.strength_ds = 8,
-+ .ecc.step_ds = 512,
-+ },
-+ {
-+ .name = "SPI NAND 512MiB 1,8V",
-+ .id = { NAND_MFR_GIGADEVICE, 0xa4 },
-+ .chipsize = 512,
-+ .pagesize = SZ_4K,
-+ .erasesize = SZ_256K,
-+ .id_len = 2,
-+ .oobsize = 256,
-+ .ecc.strength_ds = 8,
-+ .ecc.step_ds = 512,
-+ },
-+};
-+
-+enum spi_nand_device_variant {
-+ SPI_NAND_GENERIC,
-+ SPI_NAND_GD5F,
-+};
-+
-+struct spi_nand_device_cmd {
-+
-+ /*
-+ * Command and address. I/O errors have been observed if a
-+ * separate spi_transfer is used for command and address,
-+ * so keep them together.
-+ */
-+ u32 n_cmd;
-+ u8 cmd[5];
-+
-+ /* Tx data */
-+ u32 n_tx;
-+ u8 *tx_buf;
-+
-+ /* Rx data */
-+ u32 n_rx;
-+ u8 *rx_buf;
-+ u8 rx_nbits;
-+ u8 tx_nbits;
-+};
-+
-+struct spi_nand_device {
-+ struct spi_nand spi_nand;
-+ struct spi_device *spi;
-+
-+ struct spi_nand_device_cmd cmd;
-+};
-+
-+static int spi_nand_send_command(struct spi_device *spi,
-+ struct spi_nand_device_cmd *cmd)
-+{
-+ struct spi_message message;
-+ struct spi_transfer x[2];
-+
-+ if (!cmd->n_cmd) {
-+ dev_err(&spi->dev, "cannot send an empty command\n");
-+ return -EINVAL;
-+ }
-+
-+ if (cmd->n_tx && cmd->n_rx) {
-+ dev_err(&spi->dev, "cannot send and receive data at the same time\n");
-+ return -EINVAL;
-+ }
-+
-+ spi_message_init(&message);
-+ memset(x, 0, sizeof(x));
-+
-+ /* Command and address */
-+ x[0].len = cmd->n_cmd;
-+ x[0].tx_buf = cmd->cmd;
-+ x[0].tx_nbits = cmd->tx_nbits;
-+ spi_message_add_tail(&x[0], &message);
-+
-+ /* Data to be transmitted */
-+ if (cmd->n_tx) {
-+ x[1].len = cmd->n_tx;
-+ x[1].tx_buf = cmd->tx_buf;
-+ x[1].tx_nbits = cmd->tx_nbits;
-+ spi_message_add_tail(&x[1], &message);
-+ }
-+
-+ /* Data to be received */
-+ if (cmd->n_rx) {
-+ x[1].len = cmd->n_rx;
-+ x[1].rx_buf = cmd->rx_buf;
-+ x[1].rx_nbits = cmd->rx_nbits;
-+ spi_message_add_tail(&x[1], &message);
-+ }
-+
-+ return spi_sync(spi, &message);
-+}
-+
-+static int spi_nand_device_reset(struct spi_nand *snand)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 1;
-+ cmd->cmd[0] = SPI_NAND_RESET;
-+
-+ dev_dbg(snand->dev, "%s\n", __func__);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_read_reg(struct spi_nand *snand, u8 opcode, u8 *buf)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 2;
-+ cmd->cmd[0] = SPI_NAND_GET_FEATURE;
-+ cmd->cmd[1] = opcode;
-+ cmd->n_rx = 1;
-+ cmd->rx_buf = buf;
-+
-+ dev_dbg(snand->dev, "%s: reg 0%x\n", __func__, opcode);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_write_reg(struct spi_nand *snand, u8 opcode, u8 *buf)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 2;
-+ cmd->cmd[0] = SPI_NAND_SET_FEATURE;
-+ cmd->cmd[1] = opcode;
-+ cmd->n_tx = 1;
-+ cmd->tx_buf = buf;
-+
-+ dev_dbg(snand->dev, "%s: reg 0%x\n", __func__, opcode);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_write_enable(struct spi_nand *snand)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 1;
-+ cmd->cmd[0] = SPI_NAND_WRITE_ENABLE;
-+
-+ dev_dbg(snand->dev, "%s\n", __func__);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_write_disable(struct spi_nand *snand)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 1;
-+ cmd->cmd[0] = SPI_NAND_WRITE_DISABLE;
-+
-+ dev_dbg(snand->dev, "%s\n", __func__);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_write_page(struct spi_nand *snand,
-+ unsigned int page_addr)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 4;
-+ cmd->cmd[0] = SPI_NAND_PROGRAM_EXEC;
-+ cmd->cmd[1] = (u8)((page_addr & 0xff0000) >> 16);
-+ cmd->cmd[2] = (u8)((page_addr & 0xff00) >> 8);
-+ cmd->cmd[3] = (u8)(page_addr & 0xff);
-+
-+ dev_dbg(snand->dev, "%s: page 0x%x\n", __func__, page_addr);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_store_cache(struct spi_nand *snand,
-+ unsigned int page_offset, size_t length,
-+ u8 *write_buf)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+ struct spi_device *spi = snand_dev->spi;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 3;
-+ cmd->cmd[0] = spi->mode & SPI_TX_QUAD ? SPI_NAND_PROGRAM_LOAD4 :
-+ SPI_NAND_PROGRAM_LOAD;
-+ cmd->cmd[1] = (u8)((page_offset & 0xff00) >> 8);
-+ cmd->cmd[2] = (u8)(page_offset & 0xff);
-+ cmd->n_tx = length;
-+ cmd->tx_buf = write_buf;
-+ cmd->tx_nbits = spi->mode & SPI_TX_QUAD ? 4 : 1;
-+
-+ dev_dbg(snand->dev, "%s: offset 0x%x\n", __func__, page_offset);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_load_page(struct spi_nand *snand,
-+ unsigned int page_addr)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 4;
-+ cmd->cmd[0] = SPI_NAND_PAGE_READ;
-+ cmd->cmd[1] = (u8)((page_addr & 0xff0000) >> 16);
-+ cmd->cmd[2] = (u8)((page_addr & 0xff00) >> 8);
-+ cmd->cmd[3] = (u8)(page_addr & 0xff);
-+
-+ dev_dbg(snand->dev, "%s: page 0x%x\n", __func__, page_addr);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_read_cache(struct spi_nand *snand,
-+ unsigned int page_offset, size_t length,
-+ u8 *read_buf)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+ struct spi_device *spi = snand_dev->spi;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ if ((spi->mode & SPI_RX_DUAL) || (spi->mode & SPI_RX_QUAD))
-+ cmd->n_cmd = 5;
-+ else
-+ cmd->n_cmd = 4;
-+ cmd->cmd[0] = (spi->mode & SPI_RX_QUAD) ? SPI_NAND_READ_CACHE_X4 :
-+ ((spi->mode & SPI_RX_DUAL) ? SPI_NAND_READ_CACHE_X2 :
-+ SPI_NAND_READ_CACHE);
-+ cmd->cmd[1] = 0; /* dummy byte */
-+ cmd->cmd[2] = (u8)((page_offset & 0xff00) >> 8);
-+ cmd->cmd[3] = (u8)(page_offset & 0xff);
-+ cmd->cmd[4] = 0; /* dummy byte */
-+ cmd->n_rx = length;
-+ cmd->rx_buf = read_buf;
-+ cmd->rx_nbits = (spi->mode & SPI_RX_QUAD) ? 4 :
-+ ((spi->mode & SPI_RX_DUAL) ? 2 : 1);
-+
-+ dev_dbg(snand->dev, "%s: offset 0x%x\n", __func__, page_offset);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_device_block_erase(struct spi_nand *snand,
-+ unsigned int page_addr)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 4;
-+ cmd->cmd[0] = SPI_NAND_BLOCK_ERASE;
-+ cmd->cmd[1] = (u8)((page_addr & 0xff0000) >> 16);
-+ cmd->cmd[2] = (u8)((page_addr & 0xff00) >> 8);
-+ cmd->cmd[3] = (u8)(page_addr & 0xff);
-+
-+ dev_dbg(snand->dev, "%s: block 0x%x\n", __func__, page_addr);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static int spi_nand_gd5f_read_id(struct spi_nand *snand, u8 *buf)
-+{
-+ struct spi_nand_device *snand_dev = snand->priv;
-+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd;
-+
-+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd));
-+ cmd->n_cmd = 1;
-+ cmd->cmd[0] = SPI_NAND_READ_ID;
-+ cmd->n_rx = SPI_NAND_GD5F_READID_LEN;
-+ cmd->rx_buf = buf;
-+
-+ dev_dbg(snand->dev, "%s\n", __func__);
-+
-+ return spi_nand_send_command(snand_dev->spi, cmd);
-+}
-+
-+static void spi_nand_gd5f_ecc_status(unsigned int status,
-+ unsigned int *corrected,
-+ unsigned int *ecc_error)
-+{
-+ unsigned int ecc_status = (status >> SPI_NAND_GD5F_ECC_SHIFT) &
-+ SPI_NAND_GD5F_ECC_MASK;
-+
-+ *ecc_error = (ecc_status == SPI_NAND_GD5F_ECC_UNCORR) ? 1 : 0;
-+ if (*ecc_error == 0)
-+ *corrected = (ecc_status > 1) ? (2 + ecc_status) : 0;
-+}
-+
-+static int spi_nand_device_probe(struct spi_device *spi)
-+{
-+ enum spi_nand_device_variant variant;
-+ struct spi_nand_device *priv;
-+ struct spi_nand *snand;
-+ int ret;
-+
-+ priv = devm_kzalloc(&spi->dev, sizeof(*priv), GFP_KERNEL);
-+ if (!priv)
-+ return -ENOMEM;
-+
-+ snand = &priv->spi_nand;
-+
-+ snand->read_cache = spi_nand_device_read_cache;
-+ snand->load_page = spi_nand_device_load_page;
-+ snand->store_cache = spi_nand_device_store_cache;
-+ snand->write_page = spi_nand_device_write_page;
-+ snand->write_reg = spi_nand_device_write_reg;
-+ snand->read_reg = spi_nand_device_read_reg;
-+ snand->block_erase = spi_nand_device_block_erase;
-+ snand->reset = spi_nand_device_reset;
-+ snand->write_enable = spi_nand_device_write_enable;
-+ snand->write_disable = spi_nand_device_write_disable;
-+ snand->dev = &spi->dev;
-+ snand->priv = priv;
-+
-+ /* This'll mean we won't need to specify any specific compatible string
-+ * for a given device, and instead just support spi-nand.
-+ */
-+ variant = spi_get_device_id(spi)->driver_data;
-+ switch (variant) {
-+ case SPI_NAND_GD5F:
-+ snand->read_id = spi_nand_gd5f_read_id;
-+ snand->get_ecc_status = spi_nand_gd5f_ecc_status;
-+ snand->ooblayout = &spi_nand_gd5f_oob_256_ops;
-+ break;
-+ default:
-+ dev_err(snand->dev, "unknown device\n");
-+ return -ENODEV;
-+ }
-+
-+ spi_set_drvdata(spi, snand);
-+ priv->spi = spi;
-+
-+ ret = spi_nand_register(snand, spi_nand_flash_ids);
-+ if (ret)
-+ return ret;
-+ return 0;
-+}
-+
-+static int spi_nand_device_remove(struct spi_device *spi)
-+{
-+ struct spi_nand *snand = spi_get_drvdata(spi);
-+
-+ spi_nand_unregister(snand);
-+
-+ return 0;
-+}
-+
-+const struct spi_device_id spi_nand_id_table[] = {
-+ { "spi-nand", SPI_NAND_GENERIC },
-+ { "gd5f", SPI_NAND_GD5F },
-+ { },
-+};
-+MODULE_DEVICE_TABLE(spi, spi_nand_id_table);
-+
-+static struct spi_driver spi_nand_device_driver = {
-+ .driver = {
-+ .name = "spi_nand_device",
-+ .owner = THIS_MODULE,
-+ },
-+ .id_table = spi_nand_id_table,
-+ .probe = spi_nand_device_probe,
-+ .remove = spi_nand_device_remove,
-+};
-+module_spi_driver(spi_nand_device_driver);
-+
-+MODULE_AUTHOR("Ezequiel Garcia <ezequiel.garcia@imgtec.com>");
-+MODULE_DESCRIPTION("SPI NAND device support");
-+MODULE_LICENSE("GPL v2");
--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
-@@ -90,6 +90,7 @@
+@@ -87,6 +87,7 @@
compatible = "spansion,s25fl016k", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
-@@ -92,6 +92,17 @@
+@@ -89,6 +89,17 @@
spi-max-frequency = <50000000>;
linux,mtd-name = "spi-nor";
};
+ flash@1 {
-+ compatible = "gigadevice,gd5f";
++ compatible = "spi-nand";
+ reg = <1>;
+ spi-max-frequency = <50000000>;
+ nand-on-flash-bbt;
projects / openwrt / staging / stintel.git / commitdiff