+--- a/drivers/bcma/driver_pci.c
++++ b/drivers/bcma/driver_pci.c
+@@ -31,7 +31,7 @@ static void bcma_pcie_write(struct bcma_
+ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_DATA, data);
+ }
+
+-static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy)
++static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u16 phy)
+ {
+ u32 v;
+ int i;
+@@ -55,7 +55,7 @@ static void bcma_pcie_mdio_set_phy(struc
+ }
+ }
+
+-static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address)
++static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u16 device, u8 address)
+ {
+ int max_retries = 10;
+ u16 ret = 0;
+@@ -98,7 +98,7 @@ static u16 bcma_pcie_mdio_read(struct bc
+ return ret;
+ }
+
+-static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device,
++static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u16 device,
+ u8 address, u16 data)
+ {
+ int max_retries = 10;
+@@ -137,6 +137,13 @@ static void bcma_pcie_mdio_write(struct
+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0);
+ }
+
++static u16 bcma_pcie_mdio_writeread(struct bcma_drv_pci *pc, u16 device,
++ u8 address, u16 data)
++{
++ bcma_pcie_mdio_write(pc, device, address, data);
++ return bcma_pcie_mdio_read(pc, device, address);
++}
++
+ /**************************************************
+ * Workarounds.
+ **************************************************/
+@@ -229,6 +236,32 @@ void bcma_core_pci_init(struct bcma_drv_
+ bcma_core_pci_clientmode_init(pc);
+ }
+
++void bcma_core_pci_power_save(struct bcma_bus *bus, bool up)
++{
++ struct bcma_drv_pci *pc;
++ u16 data;
++
++ if (bus->hosttype != BCMA_HOSTTYPE_PCI)
++ return;
++
++ pc = &bus->drv_pci[0];
++
++ if (pc->core->id.rev >= 15 && pc->core->id.rev <= 20) {
++ data = up ? 0x74 : 0x7C;
++ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
++ BCMA_CORE_PCI_MDIO_BLK1_MGMT1, 0x7F64);
++ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
++ BCMA_CORE_PCI_MDIO_BLK1_MGMT3, data);
++ } else if (pc->core->id.rev >= 21 && pc->core->id.rev <= 22) {
++ data = up ? 0x75 : 0x7D;
++ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
++ BCMA_CORE_PCI_MDIO_BLK1_MGMT1, 0x7E65);
++ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
++ BCMA_CORE_PCI_MDIO_BLK1_MGMT3, data);
++ }
++}
++EXPORT_SYMBOL_GPL(bcma_core_pci_power_save);
++
+ int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
+ bool enable)
+ {
+@@ -262,7 +295,7 @@ out:
+ }
+ EXPORT_SYMBOL_GPL(bcma_core_pci_irq_ctl);
+
+-void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend)
++static void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend)
+ {
+ u32 w;
+
+@@ -274,4 +307,29 @@ void bcma_core_pci_extend_L1timer(struct
+ bcma_pcie_write(pc, BCMA_CORE_PCI_DLLP_PMTHRESHREG, w);
+ bcma_pcie_read(pc, BCMA_CORE_PCI_DLLP_PMTHRESHREG);
+ }
+-EXPORT_SYMBOL_GPL(bcma_core_pci_extend_L1timer);
++
++void bcma_core_pci_up(struct bcma_bus *bus)
++{
++ struct bcma_drv_pci *pc;
++
++ if (bus->hosttype != BCMA_HOSTTYPE_PCI)
++ return;
++
++ pc = &bus->drv_pci[0];
++
++ bcma_core_pci_extend_L1timer(pc, true);
++}
++EXPORT_SYMBOL_GPL(bcma_core_pci_up);
++
++void bcma_core_pci_down(struct bcma_bus *bus)
++{
++ struct bcma_drv_pci *pc;
++
++ if (bus->hosttype != BCMA_HOSTTYPE_PCI)
++ return;
++
++ pc = &bus->drv_pci[0];
++
++ bcma_core_pci_extend_L1timer(pc, false);
++}
++EXPORT_SYMBOL_GPL(bcma_core_pci_down);
+--- a/drivers/bcma/driver_pci_host.c
++++ b/drivers/bcma/driver_pci_host.c
+@@ -581,6 +581,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI
+ int bcma_core_pci_plat_dev_init(struct pci_dev *dev)
+ {
+ struct bcma_drv_pci_host *pc_host;
++ int readrq;
+
+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) {
+ /* This is not a device on the PCI-core bridge. */
+@@ -595,6 +596,11 @@ int bcma_core_pci_plat_dev_init(struct p
+ dev->irq = bcma_core_irq(pc_host->pdev->core);
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+
++ readrq = pcie_get_readrq(dev);
++ if (readrq > 128) {
++ pr_info("change PCIe max read request size from %i to 128\n", readrq);
++ pcie_set_readrq(dev, 128);
++ }
+ return 0;
+ }
+ EXPORT_SYMBOL(bcma_core_pci_plat_dev_init);
+--- a/drivers/bcma/scan.c
++++ b/drivers/bcma/scan.c
+@@ -32,6 +32,18 @@ static const struct bcma_device_id_name
+ { BCMA_CORE_4706_CHIPCOMMON, "BCM4706 ChipCommon" },
+ { BCMA_CORE_4706_SOC_RAM, "BCM4706 SOC RAM" },
+ { BCMA_CORE_4706_MAC_GBIT, "BCM4706 GBit MAC" },
++ { BCMA_CORE_PCIEG2, "PCIe Gen 2" },
++ { BCMA_CORE_DMA, "DMA" },
++ { BCMA_CORE_SDIO3, "SDIO3" },
++ { BCMA_CORE_USB20, "USB 2.0" },
++ { BCMA_CORE_USB30, "USB 3.0" },
++ { BCMA_CORE_A9JTAG, "ARM Cortex A9 JTAG" },
++ { BCMA_CORE_DDR23, "Denali DDR2/DDR3 memory controller" },
++ { BCMA_CORE_ROM, "ROM" },
++ { BCMA_CORE_NAND, "NAND flash controller" },
++ { BCMA_CORE_QSPI, "SPI flash controller" },
++ { BCMA_CORE_CHIPCOMMON_B, "Chipcommon B" },
++ { BCMA_CORE_ARMCA9, "ARM Cortex A9 core (ihost)" },
+ { BCMA_CORE_AMEMC, "AMEMC (DDR)" },
+ { BCMA_CORE_ALTA, "ALTA (I2S)" },
+ { BCMA_CORE_INVALID, "Invalid" },
+@@ -201,7 +213,7 @@ static s32 bcma_erom_get_mst_port(struct
+ return ent;
+ }
+
+-static s32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr,
++static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr,
+ u32 type, u8 port)
+ {
+ u32 addrl, addrh, sizel, sizeh = 0;
+@@ -213,7 +225,7 @@ static s32 bcma_erom_get_addr_desc(struc
+ ((ent & SCAN_ADDR_TYPE) != type) ||
+ (((ent & SCAN_ADDR_PORT) >> SCAN_ADDR_PORT_SHIFT) != port)) {
+ bcma_erom_push_ent(eromptr);
+- return -EINVAL;
++ return (u32)-EINVAL;
+ }
+
+ addrl = ent & SCAN_ADDR_ADDR;
+@@ -257,11 +269,13 @@ static struct bcma_device *bcma_find_cor
+ return NULL;
+ }
+
++#define IS_ERR_VALUE_U32(x) ((x) >= (u32)-MAX_ERRNO)
++
+ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
+ struct bcma_device_id *match, int core_num,
+ struct bcma_device *core)
+ {
+- s32 tmp;
++ u32 tmp;
+ u8 i, j;
+ s32 cia, cib;
+ u8 ports[2], wrappers[2];
+@@ -339,11 +353,11 @@ static int bcma_get_next_core(struct bcm
+ * the main register space for the core
+ */
+ tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, 0);
+- if (tmp <= 0) {
++ if (tmp == 0 || IS_ERR_VALUE_U32(tmp)) {
+ /* Try again to see if it is a bridge */
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
+ SCAN_ADDR_TYPE_BRIDGE, 0);
+- if (tmp <= 0) {
++ if (tmp == 0 || IS_ERR_VALUE_U32(tmp)) {
+ return -EILSEQ;
+ } else {
+ bcma_info(bus, "Bridge found\n");
+@@ -357,7 +371,7 @@ static int bcma_get_next_core(struct bcm
+ for (j = 0; ; j++) {
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
+ SCAN_ADDR_TYPE_SLAVE, i);
+- if (tmp < 0) {
++ if (IS_ERR_VALUE_U32(tmp)) {
+ /* no more entries for port _i_ */
+ /* pr_debug("erom: slave port %d "
+ * "has %d descriptors\n", i, j); */
+@@ -374,7 +388,7 @@ static int bcma_get_next_core(struct bcm
+ for (j = 0; ; j++) {
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
+ SCAN_ADDR_TYPE_MWRAP, i);
+- if (tmp < 0) {
++ if (IS_ERR_VALUE_U32(tmp)) {
+ /* no more entries for port _i_ */
+ /* pr_debug("erom: master wrapper %d "
+ * "has %d descriptors\n", i, j); */
+@@ -392,7 +406,7 @@ static int bcma_get_next_core(struct bcm
+ for (j = 0; ; j++) {
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
+ SCAN_ADDR_TYPE_SWRAP, i + hack);
+- if (tmp < 0) {
++ if (IS_ERR_VALUE_U32(tmp)) {
+ /* no more entries for port _i_ */
+ /* pr_debug("erom: master wrapper %d "
+ * has %d descriptors\n", i, j); */
+--- a/include/linux/bcma/bcma_driver_pci.h
++++ b/include/linux/bcma/bcma_driver_pci.h
+@@ -181,10 +181,31 @@ struct pci_dev;
+
+ #define BCMA_CORE_PCI_CFG_DEVCTRL 0xd8
+
++#define BCMA_CORE_PCI_
++
++/* MDIO devices (SERDES modules) */
++#define BCMA_CORE_PCI_MDIO_IEEE0 0x000
++#define BCMA_CORE_PCI_MDIO_IEEE1 0x001
++#define BCMA_CORE_PCI_MDIO_BLK0 0x800
++#define BCMA_CORE_PCI_MDIO_BLK1 0x801
++#define BCMA_CORE_PCI_MDIO_BLK1_MGMT0 0x16
++#define BCMA_CORE_PCI_MDIO_BLK1_MGMT1 0x17
++#define BCMA_CORE_PCI_MDIO_BLK1_MGMT2 0x18
++#define BCMA_CORE_PCI_MDIO_BLK1_MGMT3 0x19
++#define BCMA_CORE_PCI_MDIO_BLK1_MGMT4 0x1A
++#define BCMA_CORE_PCI_MDIO_BLK2 0x802
++#define BCMA_CORE_PCI_MDIO_BLK3 0x803
++#define BCMA_CORE_PCI_MDIO_BLK4 0x804
++#define BCMA_CORE_PCI_MDIO_TXPLL 0x808 /* TXPLL register block idx */
++#define BCMA_CORE_PCI_MDIO_TXCTRL0 0x820
++#define BCMA_CORE_PCI_MDIO_SERDESID 0x831
++#define BCMA_CORE_PCI_MDIO_RXCTRL0 0x840
++
+ /* PCIE Root Capability Register bits (Host mode only) */
+ #define BCMA_CORE_PCI_RC_CRS_VISIBILITY 0x0001
+
+ struct bcma_drv_pci;
++struct bcma_bus;
+
+ #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+ struct bcma_drv_pci_host {
+@@ -219,7 +240,9 @@ struct bcma_drv_pci {
+ extern void bcma_core_pci_init(struct bcma_drv_pci *pc);
+ extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc,
+ struct bcma_device *core, bool enable);
+-extern void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend);
++extern void bcma_core_pci_up(struct bcma_bus *bus);
++extern void bcma_core_pci_down(struct bcma_bus *bus);
++extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
+
+ extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);
+ extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev);
+--- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
++++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
+@@ -679,27 +679,6 @@ bool ai_clkctl_cc(struct si_pub *sih, en
+ return mode == BCMA_CLKMODE_FAST;
+ }
+
+-void ai_pci_up(struct si_pub *sih)
+-{
+- struct si_info *sii;
+-
+- sii = container_of(sih, struct si_info, pub);
+-
+- if (sii->icbus->hosttype == BCMA_HOSTTYPE_PCI)
+- bcma_core_pci_extend_L1timer(&sii->icbus->drv_pci[0], true);
+-}
+-
+-/* Unconfigure and/or apply various WARs when going down */
+-void ai_pci_down(struct si_pub *sih)
+-{
+- struct si_info *sii;
+-
+- sii = container_of(sih, struct si_info, pub);
+-
+- if (sii->icbus->hosttype == BCMA_HOSTTYPE_PCI)
+- bcma_core_pci_extend_L1timer(&sii->icbus->drv_pci[0], false);
+-}
+-
+ /* Enable BT-COEX & Ex-PA for 4313 */
+ void ai_epa_4313war(struct si_pub *sih)
+ {
+--- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.h
++++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.h
+@@ -183,9 +183,6 @@ extern u16 ai_clkctl_fast_pwrup_delay(st
+ extern bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
+ extern bool ai_deviceremoved(struct si_pub *sih);
+
+-extern void ai_pci_down(struct si_pub *sih);
+-extern void ai_pci_up(struct si_pub *sih);
+-
+ /* Enable Ex-PA for 4313 */
+ extern void ai_epa_4313war(struct si_pub *sih);
+
+--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
++++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
+@@ -4667,7 +4667,7 @@ static int brcms_b_attach(struct brcms_c
+ brcms_c_coredisable(wlc_hw);
+
+ /* Match driver "down" state */
+- ai_pci_down(wlc_hw->sih);
++ bcma_core_pci_down(wlc_hw->d11core->bus);
+
+ /* turn off pll and xtal to match driver "down" state */
+ brcms_b_xtal(wlc_hw, OFF);
+@@ -5010,12 +5010,12 @@ static int brcms_b_up_prep(struct brcms_
+ */
+ if (brcms_b_radio_read_hwdisabled(wlc_hw)) {
+ /* put SB PCI in down state again */
+- ai_pci_down(wlc_hw->sih);
++ bcma_core_pci_down(wlc_hw->d11core->bus);
+ brcms_b_xtal(wlc_hw, OFF);
+ return -ENOMEDIUM;
+ }
+
+- ai_pci_up(wlc_hw->sih);
++ bcma_core_pci_up(wlc_hw->d11core->bus);
+
+ /* reset the d11 core */
+ brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS);
+@@ -5212,7 +5212,7 @@ static int brcms_b_down_finish(struct br
+
+ /* turn off primary xtal and pll */
+ if (!wlc_hw->noreset) {
+- ai_pci_down(wlc_hw->sih);
++ bcma_core_pci_down(wlc_hw->d11core->bus);
+ brcms_b_xtal(wlc_hw, OFF);
+ }
+ }