openwrt-owl/target/linux/generic/patches-3.7/020-ssb_update.patch

--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -43,8 +43,8 @@ static void early_nvram_init(void)
 #ifdef CONFIG_BCM47XX_SSB
 	case BCM47XX_BUS_TYPE_SSB:
 		mcore_ssb = &bcm47xx_bus.ssb.mipscore;
-		base = mcore_ssb->flash_window;
-		lim = mcore_ssb->flash_window_size;
+		base = mcore_ssb->pflash.window;
+		lim = mcore_ssb->pflash.window_size;
 		break;
 #endif
 #ifdef CONFIG_BCM47XX_BCMA
--- a/arch/mips/bcm47xx/wgt634u.c
+++ b/arch/mips/bcm47xx/wgt634u.c
@@ -156,10 +156,10 @@ static int __init wgt634u_init(void)
 					    SSB_CHIPCO_IRQ_GPIO);
 		}
 
-		wgt634u_flash_data.width = mcore->flash_buswidth;
-		wgt634u_flash_resource.start = mcore->flash_window;
-		wgt634u_flash_resource.end = mcore->flash_window
-					   + mcore->flash_window_size
+		wgt634u_flash_data.width = mcore->pflash.buswidth;
+		wgt634u_flash_resource.start = mcore->pflash.window;
+		wgt634u_flash_resource.end = mcore->pflash.window
+					   + mcore->pflash.window_size
 					   - 1;
 		return platform_add_devices(wgt634u_devices,
 					    ARRAY_SIZE(wgt634u_devices));
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -136,6 +136,11 @@ config SSB_DRIVER_MIPS
 
 	  If unsure, say N
 
+config SSB_SFLASH
+	bool "SSB serial flash support"
+	depends on SSB_DRIVER_MIPS && BROKEN
+	default y
+
 # Assumption: We are on embedded, if we compile the MIPS core.
 config SSB_EMBEDDED
 	bool
@@ -160,4 +165,12 @@ config SSB_DRIVER_GIGE
 
 	  If unsure, say N
 
+config SSB_DRIVER_GPIO
+	bool "SSB GPIO driver"
+	depends on SSB && GPIOLIB
+	help
+	  Driver to provide access to the GPIO pins on the bus.
+
+	  If unsure, say N
+
 endmenu
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,10 +11,12 @@ ssb-$(CONFIG_SSB_SDIOHOST)		+= sdio.o
 # built-in drivers
 ssb-y					+= driver_chipcommon.o
 ssb-y					+= driver_chipcommon_pmu.o
+ssb-$(CONFIG_SSB_SFLASH)		+= driver_chipcommon_sflash.o
 ssb-$(CONFIG_SSB_DRIVER_MIPS)		+= driver_mipscore.o
 ssb-$(CONFIG_SSB_DRIVER_EXTIF)		+= driver_extif.o
 ssb-$(CONFIG_SSB_DRIVER_PCICORE)	+= driver_pcicore.o
 ssb-$(CONFIG_SSB_DRIVER_GIGE)		+= driver_gige.o
+ssb-$(CONFIG_SSB_DRIVER_GPIO)		+= driver_gpio.o
 
 # b43 pci-ssb-bridge driver
 # Not strictly a part of SSB, but kept here for convenience
--- a/drivers/ssb/b43_pci_bridge.c
+++ b/drivers/ssb/b43_pci_bridge.c
@@ -37,6 +37,7 @@ static const struct pci_device_id b43_pc
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4329) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x432b) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x432c) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4350) },
 	{ 0, },
 };
 MODULE_DEVICE_TABLE(pci, b43_pci_bridge_tbl);
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -4,6 +4,7 @@
  *
  * Copyright 2005, Broadcom Corporation
  * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
+ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
  *
  * Licensed under the GNU/GPL. See COPYING for details.
  */
@@ -12,6 +13,7 @@
 #include <linux/ssb/ssb_regs.h>
 #include <linux/export.h>
 #include <linux/pci.h>
+#include <linux/bcm47xx_wdt.h>
 
 #include "ssb_private.h"
 
@@ -280,10 +282,76 @@ static void calc_fast_powerup_delay(stru
 	cc->fast_pwrup_delay = tmp;
 }
 
+static u32 ssb_chipco_alp_clock(struct ssb_chipcommon *cc)
+{
+	if (cc->capabilities & SSB_CHIPCO_CAP_PMU)
+		return ssb_pmu_get_alp_clock(cc);
+
+	return 20000000;
+}
+
+static u32 ssb_chipco_watchdog_get_max_timer(struct ssb_chipcommon *cc)
+{
+	u32 nb;
+
+	if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
+		if (cc->dev->id.revision < 26)
+			nb = 16;
+		else
+			nb = (cc->dev->id.revision >= 37) ? 32 : 24;
+	} else {
+		nb = 28;
+	}
+	if (nb == 32)
+		return 0xffffffff;
+	else
+		return (1 << nb) - 1;
+}
+
+u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks)
+{
+	struct ssb_chipcommon *cc = bcm47xx_wdt_get_drvdata(wdt);
+
+	if (cc->dev->bus->bustype != SSB_BUSTYPE_SSB)
+		return 0;
+
+	return ssb_chipco_watchdog_timer_set(cc, ticks);
+}
+
+u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms)
+{
+	struct ssb_chipcommon *cc = bcm47xx_wdt_get_drvdata(wdt);
+	u32 ticks;
+
+	if (cc->dev->bus->bustype != SSB_BUSTYPE_SSB)
+		return 0;
+
+	ticks = ssb_chipco_watchdog_timer_set(cc, cc->ticks_per_ms * ms);
+	return ticks / cc->ticks_per_ms;
+}
+
+static int ssb_chipco_watchdog_ticks_per_ms(struct ssb_chipcommon *cc)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+
+	if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
+			/* based on 32KHz ILP clock */
+			return 32;
+	} else {
+		if (cc->dev->id.revision < 18)
+			return ssb_clockspeed(bus) / 1000;
+		else
+			return ssb_chipco_alp_clock(cc) / 1000;
+	}
+}
+
 void ssb_chipcommon_init(struct ssb_chipcommon *cc)
 {
 	if (!cc->dev)
 		return; /* We don't have a ChipCommon */
+
+	spin_lock_init(&cc->gpio_lock);
+
 	if (cc->dev->id.revision >= 11)
 		cc->status = chipco_read32(cc, SSB_CHIPCO_CHIPSTAT);
 	ssb_dprintk(KERN_INFO PFX "chipcommon status is 0x%x\n", cc->status);
@@ -297,6 +365,11 @@ void ssb_chipcommon_init(struct ssb_chip
 	chipco_powercontrol_init(cc);
 	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
 	calc_fast_powerup_delay(cc);
+
+	if (cc->dev->bus->bustype == SSB_BUSTYPE_SSB) {
+		cc->ticks_per_ms = ssb_chipco_watchdog_ticks_per_ms(cc);
+		cc->max_timer_ms = ssb_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
+	}
 }
 
 void ssb_chipco_suspend(struct ssb_chipcommon *cc)
@@ -395,10 +468,27 @@ void ssb_chipco_timing_init(struct ssb_c
 }
 
 /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
-void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks)
+u32 ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks)
 {
-	/* instant NMI */
-	chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
+	u32 maxt;
+	enum ssb_clkmode clkmode;
+
+	maxt = ssb_chipco_watchdog_get_max_timer(cc);
+	if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
+		if (ticks == 1)
+			ticks = 2;
+		else if (ticks > maxt)
+			ticks = maxt;
+		chipco_write32(cc, SSB_CHIPCO_PMU_WATCHDOG, ticks);
+	} else {
+		clkmode = ticks ? SSB_CLKMODE_FAST : SSB_CLKMODE_DYNAMIC;
+		ssb_chipco_set_clockmode(cc, clkmode);
+		if (ticks > maxt)
+			ticks = maxt;
+		/* instant NMI */
+		chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
+	}
+	return ticks;
 }
 
 void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value)
@@ -418,28 +508,93 @@ u32 ssb_chipco_gpio_in(struct ssb_chipco
 
 u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc, u32 mask, u32 value)
 {
-	return chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUT, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUT, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
 }
 
 u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc, u32 mask, u32 value)
 {
-	return chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUTEN, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUTEN, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
 }
 
 u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc, u32 mask, u32 value)
 {
-	return chipco_write32_masked(cc, SSB_CHIPCO_GPIOCTL, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOCTL, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
 }
 EXPORT_SYMBOL(ssb_chipco_gpio_control);
 
 u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc, u32 mask, u32 value)
 {
-	return chipco_write32_masked(cc, SSB_CHIPCO_GPIOIRQ, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOIRQ, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
 }
 
 u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc, u32 mask, u32 value)
 {
-	return chipco_write32_masked(cc, SSB_CHIPCO_GPIOPOL, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOPOL, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
+}
+
+u32 ssb_chipco_gpio_pullup(struct ssb_chipcommon *cc, u32 mask, u32 value)
+{
+	unsigned long flags;
+	u32 res = 0;
+
+	if (cc->dev->id.revision < 20)
+		return 0xffffffff;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOPULLUP, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
+}
+
+u32 ssb_chipco_gpio_pulldown(struct ssb_chipcommon *cc, u32 mask, u32 value)
+{
+	unsigned long flags;
+	u32 res = 0;
+
+	if (cc->dev->id.revision < 20)
+		return 0xffffffff;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = chipco_write32_masked(cc, SSB_CHIPCO_GPIOPULLDOWN, mask, value);
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
 }
 
 #ifdef CONFIG_SSB_SERIAL
@@ -473,12 +628,7 @@ int ssb_chipco_serial_init(struct ssb_ch
 				       chipco_read32(cc, SSB_CHIPCO_CORECTL)
 				       | SSB_CHIPCO_CORECTL_UARTCLK0);
 		} else if ((ccrev >= 11) && (ccrev != 15)) {
-			/* Fixed ALP clock */
-			baud_base = 20000000;
-			if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
-				/* FIXME: baud_base is different for devices with a PMU */
-				SSB_WARN_ON(1);
-			}
+			baud_base = ssb_chipco_alp_clock(cc);
 			div = 1;
 			if (ccrev >= 21) {
 				/* Turn off UART clock before switching clocksource. */
--- a/drivers/ssb/driver_chipcommon_pmu.c
+++ b/drivers/ssb/driver_chipcommon_pmu.c
@@ -346,6 +346,8 @@ static void ssb_pmu_pll_init(struct ssb_
 			chipco_write32(cc, SSB_CHIPCO_PLLCTL_DATA, 0x380005C0);
 		}
 		break;
+	case 43222:
+		break;
 	default:
 		ssb_printk(KERN_ERR PFX
 			   "ERROR: PLL init unknown for device %04X\n",
@@ -434,6 +436,7 @@ static void ssb_pmu_resources_init(struc
 		 min_msk = 0xCBB;
 		 break;
 	case 0x4322:
+	case 43222:
 		/* We keep the default settings:
 		 * min_msk = 0xCBB
 		 * max_msk = 0x7FFFF
@@ -615,6 +618,33 @@ void ssb_pmu_set_ldo_paref(struct ssb_ch
 EXPORT_SYMBOL(ssb_pmu_set_ldo_voltage);
 EXPORT_SYMBOL(ssb_pmu_set_ldo_paref);
 
+static u32 ssb_pmu_get_alp_clock_clk0(struct ssb_chipcommon *cc)
+{
+	u32 crystalfreq;
+	const struct pmu0_plltab_entry *e = NULL;
+
+	crystalfreq = chipco_read32(cc, SSB_CHIPCO_PMU_CTL) &
+		      SSB_CHIPCO_PMU_CTL_XTALFREQ >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT;
+	e = pmu0_plltab_find_entry(crystalfreq);
+	BUG_ON(!e);
+	return e->freq * 1000;
+}
+
+u32 ssb_pmu_get_alp_clock(struct ssb_chipcommon *cc)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+
+	switch (bus->chip_id) {
+	case 0x5354:
+		ssb_pmu_get_alp_clock_clk0(cc);
+	default:
+		ssb_printk(KERN_ERR PFX
+			   "ERROR: PMU alp clock unknown for device %04X\n",
+			   bus->chip_id);
+		return 0;
+	}
+}
+
 u32 ssb_pmu_get_cpu_clock(struct ssb_chipcommon *cc)
 {
 	struct ssb_bus *bus = cc->dev->bus;
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -0,0 +1,18 @@
+/*
+ * Sonics Silicon Backplane
+ * ChipCommon serial flash interface
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+#include "ssb_private.h"
+
+/* Initialize serial flash access */
+int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+	pr_err("Serial flash support is not implemented yet!\n");
+
+	return -ENOTSUPP;
+}
--- a/drivers/ssb/driver_extif.c
+++ b/drivers/ssb/driver_extif.c
@@ -112,10 +112,37 @@ void ssb_extif_get_clockcontrol(struct s
 	*m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
 }
 
-void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
-				  u32 ticks)
+u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks)
 {
+	struct ssb_extif *extif = bcm47xx_wdt_get_drvdata(wdt);
+
+	return ssb_extif_watchdog_timer_set(extif, ticks);
+}
+
+u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms)
+{
+	struct ssb_extif *extif = bcm47xx_wdt_get_drvdata(wdt);
+	u32 ticks = (SSB_EXTIF_WATCHDOG_CLK / 1000) * ms;
+
+	ticks = ssb_extif_watchdog_timer_set(extif, ticks);
+
+	return (ticks * 1000) / SSB_EXTIF_WATCHDOG_CLK;
+}
+
+u32 ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks)
+{
+	if (ticks > SSB_EXTIF_WATCHDOG_MAX_TIMER)
+		ticks = SSB_EXTIF_WATCHDOG_MAX_TIMER;
 	extif_write32(extif, SSB_EXTIF_WATCHDOG, ticks);
+
+	return ticks;
+}
+
+void ssb_extif_init(struct ssb_extif *extif)
+{
+	if (!extif->dev)
+		return; /* We don't have a Extif core */
+	spin_lock_init(&extif->gpio_lock);
 }
 
 u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask)
@@ -125,22 +152,50 @@ u32 ssb_extif_gpio_in(struct ssb_extif *
 
 u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value)
 {
-	return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUT(0),
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&extif->gpio_lock, flags);
+	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_OUT(0),
 				   mask, value);
+	spin_unlock_irqrestore(&extif->gpio_lock, flags);
+
+	return res;
 }
 
 u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value)
 {
-	return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUTEN(0),
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&extif->gpio_lock, flags);
+	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_OUTEN(0),
 				   mask, value);
+	spin_unlock_irqrestore(&extif->gpio_lock, flags);
+
+	return res;
 }
 
 u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask, u32 value)
 {
-	return extif_write32_masked(extif, SSB_EXTIF_GPIO_INTPOL, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&extif->gpio_lock, flags);
+	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_INTPOL, mask, value);
+	spin_unlock_irqrestore(&extif->gpio_lock, flags);
+
+	return res;
 }
 
 u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask, u32 value)
 {
-	return extif_write32_masked(extif, SSB_EXTIF_GPIO_INTMASK, mask, value);
+	unsigned long flags;
+	u32 res = 0;
+
+	spin_lock_irqsave(&extif->gpio_lock, flags);
+	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_INTMASK, mask, value);
+	spin_unlock_irqrestore(&extif->gpio_lock, flags);
+
+	return res;
 }
--- /dev/null
+++ b/drivers/ssb/driver_gpio.c
@@ -0,0 +1,176 @@
+/*
+ * Sonics Silicon Backplane
+ * GPIO driver
+ *
+ * Copyright 2011, Broadcom Corporation
+ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/gpio.h>
+#include <linux/export.h>
+#include <linux/ssb/ssb.h>
+
+#include "ssb_private.h"
+
+static struct ssb_bus *ssb_gpio_get_bus(struct gpio_chip *chip)
+{
+	return container_of(chip, struct ssb_bus, gpio);
+}
+
+static int ssb_gpio_chipco_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	return !!ssb_chipco_gpio_in(&bus->chipco, 1 << gpio);
+}
+
+static void ssb_gpio_chipco_set_value(struct gpio_chip *chip, unsigned gpio,
+				      int value)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_chipco_gpio_out(&bus->chipco, 1 << gpio, value ? 1 << gpio : 0);
+}
+
+static int ssb_gpio_chipco_direction_input(struct gpio_chip *chip,
+					   unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_chipco_gpio_outen(&bus->chipco, 1 << gpio, 0);
+	return 0;
+}
+
+static int ssb_gpio_chipco_direction_output(struct gpio_chip *chip,
+					    unsigned gpio, int value)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_chipco_gpio_outen(&bus->chipco, 1 << gpio, 1 << gpio);
+	ssb_chipco_gpio_out(&bus->chipco, 1 << gpio, value ? 1 << gpio : 0);
+	return 0;
+}
+
+static int ssb_gpio_chipco_request(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_chipco_gpio_control(&bus->chipco, 1 << gpio, 0);
+	/* clear pulldown */
+	ssb_chipco_gpio_pulldown(&bus->chipco, 1 << gpio, 0);
+	/* Set pullup */
+	ssb_chipco_gpio_pullup(&bus->chipco, 1 << gpio, 1 << gpio);
+
+	return 0;
+}
+
+static void ssb_gpio_chipco_free(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	/* clear pullup */
+	ssb_chipco_gpio_pullup(&bus->chipco, 1 << gpio, 0);
+}
+
+static int ssb_gpio_chipco_init(struct ssb_bus *bus)
+{
+	struct gpio_chip *chip = &bus->gpio;
+
+	chip->label		= "ssb_chipco_gpio";
+	chip->owner		= THIS_MODULE;
+	chip->request		= ssb_gpio_chipco_request;
+	chip->free		= ssb_gpio_chipco_free;
+	chip->get		= ssb_gpio_chipco_get_value;
+	chip->set		= ssb_gpio_chipco_set_value;
+	chip->direction_input	= ssb_gpio_chipco_direction_input;
+	chip->direction_output	= ssb_gpio_chipco_direction_output;
+	chip->ngpio		= 16;
+	/* There is just one SoC in one device and its GPIO addresses should be
+	 * deterministic to address them more easily. The other buses could get
+	 * a random base number. */
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		chip->base		= 0;
+	else
+		chip->base		= -1;
+
+	return gpiochip_add(chip);
+}
+
+#ifdef CONFIG_SSB_DRIVER_EXTIF
+
+static int ssb_gpio_extif_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	return !!ssb_extif_gpio_in(&bus->extif, 1 << gpio);
+}
+
+static void ssb_gpio_extif_set_value(struct gpio_chip *chip, unsigned gpio,
+				     int value)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_extif_gpio_out(&bus->extif, 1 << gpio, value ? 1 << gpio : 0);
+}
+
+static int ssb_gpio_extif_direction_input(struct gpio_chip *chip,
+					  unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_extif_gpio_outen(&bus->extif, 1 << gpio, 0);
+	return 0;
+}
+
+static int ssb_gpio_extif_direction_output(struct gpio_chip *chip,
+					   unsigned gpio, int value)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	ssb_extif_gpio_outen(&bus->extif, 1 << gpio, 1 << gpio);
+	ssb_extif_gpio_out(&bus->extif, 1 << gpio, value ? 1 << gpio : 0);
+	return 0;
+}
+
+static int ssb_gpio_extif_init(struct ssb_bus *bus)
+{
+	struct gpio_chip *chip = &bus->gpio;
+
+	chip->label		= "ssb_extif_gpio";
+	chip->owner		= THIS_MODULE;
+	chip->get		= ssb_gpio_extif_get_value;
+	chip->set		= ssb_gpio_extif_set_value;
+	chip->direction_input	= ssb_gpio_extif_direction_input;
+	chip->direction_output	= ssb_gpio_extif_direction_output;
+	chip->ngpio		= 5;
+	/* There is just one SoC in one device and its GPIO addresses should be
+	 * deterministic to address them more easily. The other buses could get
+	 * a random base number. */
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		chip->base		= 0;
+	else
+		chip->base		= -1;
+
+	return gpiochip_add(chip);
+}
+
+#else
+static int ssb_gpio_extif_init(struct ssb_bus *bus)
+{
+	return -ENOTSUPP;
+}
+#endif
+
+int ssb_gpio_init(struct ssb_bus *bus)
+{
+	if (ssb_chipco_available(&bus->chipco))
+		return ssb_gpio_chipco_init(bus);
+	else if (ssb_extif_available(&bus->extif))
+		return ssb_gpio_extif_init(bus);
+	else
+		SSB_WARN_ON(1);
+
+	return -1;
+}
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -178,9 +178,9 @@ static void ssb_mips_serial_init(struct
 {
 	struct ssb_bus *bus = mcore->dev->bus;
 
-	if (bus->extif.dev)
+	if (ssb_extif_available(&bus->extif))
 		mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports);
-	else if (bus->chipco.dev)
+	else if (ssb_chipco_available(&bus->chipco))
 		mcore->nr_serial_ports = ssb_chipco_serial_init(&bus->chipco, mcore->serial_ports);
 	else
 		mcore->nr_serial_ports = 0;
@@ -191,10 +191,11 @@ static void ssb_mips_flash_detect(struct
 	struct ssb_bus *bus = mcore->dev->bus;
 
 	/* When there is no chipcommon on the bus there is 4MB flash */
-	if (!bus->chipco.dev) {
-		mcore->flash_buswidth = 2;
-		mcore->flash_window = SSB_FLASH1;
-		mcore->flash_window_size = SSB_FLASH1_SZ;
+	if (!ssb_chipco_available(&bus->chipco)) {
+		mcore->pflash.present = true;
+		mcore->pflash.buswidth = 2;
+		mcore->pflash.window = SSB_FLASH1;
+		mcore->pflash.window_size = SSB_FLASH1_SZ;
 		return;
 	}
 
@@ -202,17 +203,19 @@ static void ssb_mips_flash_detect(struct
 	switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
 	case SSB_CHIPCO_FLASHT_STSER:
 	case SSB_CHIPCO_FLASHT_ATSER:
-		pr_err("Serial flash not supported\n");
+		pr_debug("Found serial flash\n");
+		ssb_sflash_init(&bus->chipco);
 		break;
 	case SSB_CHIPCO_FLASHT_PARA:
 		pr_debug("Found parallel flash\n");
-		mcore->flash_window = SSB_FLASH2;
-		mcore->flash_window_size = SSB_FLASH2_SZ;
+		mcore->pflash.present = true;
+		mcore->pflash.window = SSB_FLASH2;
+		mcore->pflash.window_size = SSB_FLASH2_SZ;
 		if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
 		               & SSB_CHIPCO_CFG_DS16) == 0)
-			mcore->flash_buswidth = 1;
+			mcore->pflash.buswidth = 1;
 		else
-			mcore->flash_buswidth = 2;
+			mcore->pflash.buswidth = 2;
 		break;
 	}
 }
@@ -225,9 +228,9 @@ u32 ssb_cpu_clock(struct ssb_mipscore *m
 	if (bus->chipco.capabilities & SSB_CHIPCO_CAP_PMU)
 		return ssb_pmu_get_cpu_clock(&bus->chipco);
 
-	if (bus->extif.dev) {
+	if (ssb_extif_available(&bus->extif)) {
 		ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m);
-	} else if (bus->chipco.dev) {
+	} else if (ssb_chipco_available(&bus->chipco)) {
 		ssb_chipco_get_clockcpu(&bus->chipco, &pll_type, &n, &m);
 	} else
 		return 0;
@@ -263,9 +266,9 @@ void ssb_mipscore_init(struct ssb_mipsco
 		hz = 100000000;
 	ns = 1000000000 / hz;
 
-	if (bus->extif.dev)
+	if (ssb_extif_available(&bus->extif))
 		ssb_extif_timing_init(&bus->extif, ns);
-	else if (bus->chipco.dev)
+	else if (ssb_chipco_available(&bus->chipco))
 		ssb_chipco_timing_init(&bus->chipco, ns);
 
 	/* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
--- a/drivers/ssb/embedded.c
+++ b/drivers/ssb/embedded.c
@@ -4,11 +4,13 @@
  *
  * Copyright 2005-2008, Broadcom Corporation
  * Copyright 2006-2008, Michael Buesch <m@bues.ch>
+ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
  *
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
 #include <linux/export.h>
+#include <linux/platform_device.h>
 #include <linux/ssb/ssb.h>
 #include <linux/ssb/ssb_embedded.h>
 #include <linux/ssb/ssb_driver_pci.h>
@@ -32,6 +34,39 @@ int ssb_watchdog_timer_set(struct ssb_bu
 }
 EXPORT_SYMBOL(ssb_watchdog_timer_set);
 
+int ssb_watchdog_register(struct ssb_bus *bus)
+{
+	struct bcm47xx_wdt wdt = {};
+	struct platform_device *pdev;
+
+	if (ssb_chipco_available(&bus->chipco)) {
+		wdt.driver_data = &bus->chipco;
+		wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt;
+		wdt.timer_set_ms = ssb_chipco_watchdog_timer_set_ms;
+		wdt.max_timer_ms = bus->chipco.max_timer_ms;
+	} else if (ssb_extif_available(&bus->extif)) {
+		wdt.driver_data = &bus->extif;
+		wdt.timer_set = ssb_extif_watchdog_timer_set_wdt;
+		wdt.timer_set_ms = ssb_extif_watchdog_timer_set_ms;
+		wdt.max_timer_ms = SSB_EXTIF_WATCHDOG_MAX_TIMER_MS;
+	} else {
+		return -ENODEV;
+	}
+
+	pdev = platform_device_register_data(NULL, "bcm47xx-wdt",
+					     bus->busnumber, &wdt,
+					     sizeof(wdt));
+	if (IS_ERR(pdev)) {
+		ssb_dprintk(KERN_INFO PFX
+			    "can not register watchdog device, err: %li\n",
+			    PTR_ERR(pdev));
+		return PTR_ERR(pdev);
+	}
+
+	bus->watchdog = pdev;
+	return 0;
+}
+
 u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask)
 {
 	unsigned long flags;
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -13,6 +13,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/platform_device.h>
 #include <linux/ssb/ssb.h>
 #include <linux/ssb/ssb_regs.h>
 #include <linux/ssb/ssb_driver_gige.h>
@@ -433,6 +434,11 @@ static void ssb_devices_unregister(struc
 		if (sdev->dev)
 			device_unregister(sdev->dev);
 	}
+
+#ifdef CONFIG_SSB_EMBEDDED
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		platform_device_unregister(bus->watchdog);
+#endif
 }
 
 void ssb_bus_unregister(struct ssb_bus *bus)
@@ -561,6 +567,8 @@ static int __devinit ssb_attach_queued_b
 		if (err)
 			goto error;
 		ssb_pcicore_init(&bus->pcicore);
+		if (bus->bustype == SSB_BUSTYPE_SSB)
+			ssb_watchdog_register(bus);
 		ssb_bus_may_powerdown(bus);
 
 		err = ssb_devices_register(bus);
@@ -796,7 +804,14 @@ static int __devinit ssb_bus_register(st
 	if (err)
 		goto err_pcmcia_exit;
 	ssb_chipcommon_init(&bus->chipco);
+	ssb_extif_init(&bus->extif);
 	ssb_mipscore_init(&bus->mipscore);
+	err = ssb_gpio_init(bus);
+	if (err == -ENOTSUPP)
+		ssb_dprintk(KERN_DEBUG PFX "GPIO driver not activated\n");
+	else if (err)
+		ssb_dprintk(KERN_ERR PFX
+			   "Error registering GPIO driver: %i\n", err);
 	err = ssb_fetch_invariants(bus, get_invariants);
 	if (err) {
 		ssb_bus_may_powerdown(bus);
@@ -1118,8 +1133,7 @@ static u32 ssb_tmslow_reject_bitmask(str
 	case SSB_IDLOW_SSBREV_27:     /* same here */
 		return SSB_TMSLOW_REJECT;	/* this is a guess */
 	default:
-		printk(KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev);
-		WARN_ON(1);
+		WARN(1, KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev);
 	}
 	return (SSB_TMSLOW_REJECT | SSB_TMSLOW_REJECT_23);
 }
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -3,6 +3,7 @@
 
 #include <linux/ssb/ssb.h>
 #include <linux/types.h>
+#include <linux/bcm47xx_wdt.h>
 
 
 #define PFX	"ssb: "
@@ -210,5 +211,63 @@ static inline void b43_pci_ssb_bridge_ex
 /* driver_chipcommon_pmu.c */
 extern u32 ssb_pmu_get_cpu_clock(struct ssb_chipcommon *cc);
 extern u32 ssb_pmu_get_controlclock(struct ssb_chipcommon *cc);
+extern u32 ssb_pmu_get_alp_clock(struct ssb_chipcommon *cc);
+
+extern u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
+					     u32 ticks);
+extern u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
+
+/* driver_chipcommon_sflash.c */
+#ifdef CONFIG_SSB_SFLASH
+int ssb_sflash_init(struct ssb_chipcommon *cc);
+#else
+static inline int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+	pr_err("Serial flash not supported\n");
+	return 0;
+}
+#endif /* CONFIG_SSB_SFLASH */
+
+#ifdef CONFIG_SSB_DRIVER_EXTIF
+extern u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks);
+extern u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
+#else
+static inline u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
+						   u32 ticks)
+{
+	return 0;
+}
+static inline u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt,
+						  u32 ms)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SSB_EMBEDDED
+extern int ssb_watchdog_register(struct ssb_bus *bus);
+#else /* CONFIG_SSB_EMBEDDED */
+static inline int ssb_watchdog_register(struct ssb_bus *bus)
+{
+	return 0;
+}
+#endif /* CONFIG_SSB_EMBEDDED */
+
+#ifdef CONFIG_SSB_DRIVER_EXTIF
+extern void ssb_extif_init(struct ssb_extif *extif);
+#else
+static inline void ssb_extif_init(struct ssb_extif *extif)
+{
+}
+#endif
+
+#ifdef CONFIG_SSB_DRIVER_GPIO
+extern int ssb_gpio_init(struct ssb_bus *bus);
+#else /* CONFIG_SSB_DRIVER_GPIO */
+static inline int ssb_gpio_init(struct ssb_bus *bus)
+{
+	return -ENOTSUPP;
+}
+#endif /* CONFIG_SSB_DRIVER_GPIO */
 
 #endif /* LINUX_SSB_PRIVATE_H_ */
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -6,8 +6,10 @@
 #include <linux/types.h>
 #include <linux/spinlock.h>
 #include <linux/pci.h>
+#include <linux/gpio.h>
 #include <linux/mod_devicetable.h>
 #include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
 
 #include <linux/ssb/ssb_regs.h>
 
@@ -432,7 +434,11 @@ struct ssb_bus {
 #ifdef CONFIG_SSB_EMBEDDED
 	/* Lock for GPIO register access. */
 	spinlock_t gpio_lock;
+	struct platform_device *watchdog;
 #endif /* EMBEDDED */
+#ifdef CONFIG_SSB_DRIVER_GPIO
+	struct gpio_chip gpio;
+#endif /* DRIVER_GPIO */
 
 	/* Internal-only stuff follows. Do not touch. */
 	struct list_head list;
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -590,7 +590,10 @@ struct ssb_chipcommon {
 	u32 status;
 	/* Fast Powerup Delay constant */
 	u16 fast_pwrup_delay;
+	spinlock_t gpio_lock;
 	struct ssb_chipcommon_pmu pmu;
+	u32 ticks_per_ms;
+	u32 max_timer_ms;
 };
 
 static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
@@ -630,8 +633,7 @@ enum ssb_clkmode {
 extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
 				     enum ssb_clkmode mode);
 
-extern void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc,
-					  u32 ticks);
+extern u32 ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks);
 
 void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value);
 
@@ -644,6 +646,8 @@ u32 ssb_chipco_gpio_outen(struct ssb_chi
 u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc, u32 mask, u32 value);
 u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc, u32 mask, u32 value);
 u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc, u32 mask, u32 value);
+u32 ssb_chipco_gpio_pullup(struct ssb_chipcommon *cc, u32 mask, u32 value);
+u32 ssb_chipco_gpio_pulldown(struct ssb_chipcommon *cc, u32 mask, u32 value);
 
 #ifdef CONFIG_SSB_SERIAL
 extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
--- a/include/linux/ssb/ssb_driver_extif.h
+++ b/include/linux/ssb/ssb_driver_extif.h
@@ -152,12 +152,16 @@
 /* watchdog */
 #define SSB_EXTIF_WATCHDOG_CLK		48000000	/* Hz */
 
+#define SSB_EXTIF_WATCHDOG_MAX_TIMER	((1 << 28) - 1)
+#define SSB_EXTIF_WATCHDOG_MAX_TIMER_MS	(SSB_EXTIF_WATCHDOG_MAX_TIMER \
+					 / (SSB_EXTIF_WATCHDOG_CLK / 1000))
 
 
 #ifdef CONFIG_SSB_DRIVER_EXTIF
 
 struct ssb_extif {
 	struct ssb_device *dev;
+	spinlock_t gpio_lock;
 };
 
 static inline bool ssb_extif_available(struct ssb_extif *extif)
@@ -171,8 +175,7 @@ extern void ssb_extif_get_clockcontrol(s
 extern void ssb_extif_timing_init(struct ssb_extif *extif,
 				  unsigned long ns);
 
-extern void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
-					 u32 ticks);
+extern u32 ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks);
 
 /* Extif GPIO pin access */
 u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask);
@@ -205,10 +208,52 @@ void ssb_extif_get_clockcontrol(struct s
 }
 
 static inline
-void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
-				  u32 ticks)
+void ssb_extif_timing_init(struct ssb_extif *extif, unsigned long ns)
 {
 }
 
+static inline
+u32 ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks)
+{
+	return 0;
+}
+
+static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask)
+{
+	return 0;
+}
+
+static inline u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask,
+				     u32 value)
+{
+	return 0;
+}
+
+static inline u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask,
+				       u32 value)
+{
+	return 0;
+}
+
+static inline u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask,
+					  u32 value)
+{
+	return 0;
+}
+
+static inline u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask,
+					 u32 value)
+{
+	return 0;
+}
+
+#ifdef CONFIG_SSB_SERIAL
+static inline int ssb_extif_serial_init(struct ssb_extif *extif,
+					struct ssb_serial_port *ports)
+{
+	return 0;
+}
+#endif /* CONFIG_SSB_SERIAL */
+
 #endif /* CONFIG_SSB_DRIVER_EXTIF */
 #endif /* LINUX_SSB_EXTIFCORE_H_ */
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -13,6 +13,12 @@ struct ssb_serial_port {
 	unsigned int reg_shift;
 };
 
+struct ssb_pflash {
+	bool present;
+	u8 buswidth;
+	u32 window;
+	u32 window_size;
+};
 
 struct ssb_mipscore {
 	struct ssb_device *dev;
@@ -20,9 +26,7 @@ struct ssb_mipscore {
 	int nr_serial_ports;
 	struct ssb_serial_port serial_ports[4];
 
-	u8 flash_buswidth;
-	u32 flash_window;
-	u32 flash_window_size;
+	struct ssb_pflash pflash;
 };
 
 extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -485,7 +485,7 @@
 #define  SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP_SHIFT	4
 #define  SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL	0x0020
 #define  SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL_SHIFT	5
-#define SSB_SPROM8_TEMPDELTA		0x00BA
+#define SSB_SPROM8_TEMPDELTA		0x00BC
 #define  SSB_SPROM8_TEMPDELTA_PHYCAL	0x00ff
 #define  SSB_SPROM8_TEMPDELTA_PHYCAL_SHIFT	0
 #define  SSB_SPROM8_TEMPDELTA_PERIOD	0x0f00
--- /dev/null
+++ b/include/linux/bcm47xx_wdt.h
@@ -0,0 +1,19 @@
+#ifndef LINUX_BCM47XX_WDT_H_
+#define LINUX_BCM47XX_WDT_H_
+
+#include <linux/types.h>
+
+
+struct bcm47xx_wdt {
+	u32 (*timer_set)(struct bcm47xx_wdt *, u32);
+	u32 (*timer_set_ms)(struct bcm47xx_wdt *, u32);
+	u32 max_timer_ms;
+
+	void *driver_data;
+};
+
+static inline void *bcm47xx_wdt_get_drvdata(struct bcm47xx_wdt *wdt)
+{
+	return wdt->driver_data;
+}
+#endif /* LINUX_BCM47XX_WDT_H_ */