brcm47xx: update watchdog driver

This watchdog driver should work with SoC having a PMU.

This fixes #11720.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34323 3c298f89-4303-0410-b956-a3cf2f4a3e73

17 files changed, 1566 insertions, 103 deletions

diff --git a/target/linux/brcm47xx/config-3.6 b/target/linux/brcm47xx/config-3.6
index 278e58cf0f..4859a5b6d1 100644
--- a/target/linux/brcm47xx/config-3.6
+++ b/target/linux/brcm47xx/config-3.6
@@ -144,5 +144,6 @@ CONFIG_USB_ARCH_HAS_XHCI=y
 # CONFIG_USB_HCD_BCMA is not set
 # CONFIG_USB_HCD_SSB is not set
 CONFIG_USB_SUPPORT=y
+CONFIG_WATCHDOG_CORE=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_ZONE_DMA_FLAG=0
diff --git a/target/linux/brcm47xx/patches-3.6/540-watchdog-bcm47xx_wdt.c-convert-to-watchdog-core-api.patch b/target/linux/brcm47xx/patches-3.6/540-watchdog-bcm47xx_wdt.c-convert-to-watchdog-core-api.patch
new file mode 100644
index 0000000000..7ac56387fe
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/540-watchdog-bcm47xx_wdt.c-convert-to-watchdog-core-api.patch
@@ -0,0 +1,252 @@
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -959,6 +959,7 @@ config ATH79_WDT
+ config BCM47XX_WDT
+ 	tristate "Broadcom BCM47xx Watchdog Timer"
+ 	depends on BCM47XX
++	select WATCHDOG_CORE
+ 	help
+ 	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
+ 
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -14,15 +14,12 @@
+ 
+ #include <linux/bitops.h>
+ #include <linux/errno.h>
+-#include <linux/fs.h>
+ #include <linux/init.h>
+ #include <linux/kernel.h>
+-#include <linux/miscdevice.h>
+ #include <linux/module.h>
+ #include <linux/moduleparam.h>
+ #include <linux/reboot.h>
+ #include <linux/types.h>
+-#include <linux/uaccess.h>
+ #include <linux/watchdog.h>
+ #include <linux/timer.h>
+ #include <linux/jiffies.h>
+@@ -48,8 +45,6 @@ MODULE_PARM_DESC(nowayout,
+ 				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+ #endif
+ 
+-static unsigned long bcm47xx_wdt_busy;
+-static char expect_release;
+ static struct timer_list wdt_timer;
+ static atomic_t ticks;
+ 
+@@ -97,29 +92,31 @@ static void bcm47xx_timer_tick(unsigned
+ 	}
+ }
+ 
+-static inline void bcm47xx_wdt_pet(void)
++static int bcm47xx_wdt_keepalive(struct watchdog_device *wdd)
+ {
+ 	atomic_set(&ticks, wdt_time);
++
++	return 0;
+ }
+ 
+-static void bcm47xx_wdt_start(void)
++static int bcm47xx_wdt_start(struct watchdog_device *wdd)
+ {
+ 	bcm47xx_wdt_pet();
+ 	bcm47xx_timer_tick(0);
++
++	return 0;
+ }
+ 
+-static void bcm47xx_wdt_pause(void)
++static int bcm47xx_wdt_stop(struct watchdog_device *wdd)
+ {
+ 	del_timer_sync(&wdt_timer);
+ 	bcm47xx_wdt_hw_stop();
+-}
+ 
+-static void bcm47xx_wdt_stop(void)
+-{
+-	bcm47xx_wdt_pause();
++	return 0;
+ }
+ 
+-static int bcm47xx_wdt_settimeout(int new_time)
++static int bcm47xx_wdt_set_timeout(struct watchdog_device *wdd,
++				   unsigned int new_time)
+ {
+ 	if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
+ 		return -EINVAL;
+@@ -128,51 +125,6 @@ static int bcm47xx_wdt_settimeout(int ne
+ 	return 0;
+ }
+ 
+-static int bcm47xx_wdt_open(struct inode *inode, struct file *file)
+-{
+-	if (test_and_set_bit(0, &bcm47xx_wdt_busy))
+-		return -EBUSY;
+-
+-	bcm47xx_wdt_start();
+-	return nonseekable_open(inode, file);
+-}
+-
+-static int bcm47xx_wdt_release(struct inode *inode, struct file *file)
+-{
+-	if (expect_release == 42) {
+-		bcm47xx_wdt_stop();
+-	} else {
+-		pr_crit("Unexpected close, not stopping watchdog!\n");
+-		bcm47xx_wdt_start();
+-	}
+-
+-	clear_bit(0, &bcm47xx_wdt_busy);
+-	expect_release = 0;
+-	return 0;
+-}
+-
+-static ssize_t bcm47xx_wdt_write(struct file *file, const char __user *data,
+-				size_t len, loff_t *ppos)
+-{
+-	if (len) {
+-		if (!nowayout) {
+-			size_t i;
+-
+-			expect_release = 0;
+-
+-			for (i = 0; i != len; i++) {
+-				char c;
+-				if (get_user(c, data + i))
+-					return -EFAULT;
+-				if (c == 'V')
+-					expect_release = 42;
+-			}
+-		}
+-		bcm47xx_wdt_pet();
+-	}
+-	return len;
+-}
+-
+ static const struct watchdog_info bcm47xx_wdt_info = {
+ 	.identity	= DRV_NAME,
+ 	.options	= WDIOF_SETTIMEOUT |
+@@ -180,80 +132,25 @@ static const struct watchdog_info bcm47x
+ 				WDIOF_MAGICCLOSE,
+ };
+ 
+-static long bcm47xx_wdt_ioctl(struct file *file,
+-					unsigned int cmd, unsigned long arg)
+-{
+-	void __user *argp = (void __user *)arg;
+-	int __user *p = argp;
+-	int new_value, retval = -EINVAL;
+-
+-	switch (cmd) {
+-	case WDIOC_GETSUPPORT:
+-		return copy_to_user(argp, &bcm47xx_wdt_info,
+-				sizeof(bcm47xx_wdt_info)) ? -EFAULT : 0;
+-
+-	case WDIOC_GETSTATUS:
+-	case WDIOC_GETBOOTSTATUS:
+-		return put_user(0, p);
+-
+-	case WDIOC_SETOPTIONS:
+-		if (get_user(new_value, p))
+-			return -EFAULT;
+-
+-		if (new_value & WDIOS_DISABLECARD) {
+-			bcm47xx_wdt_stop();
+-			retval = 0;
+-		}
+-
+-		if (new_value & WDIOS_ENABLECARD) {
+-			bcm47xx_wdt_start();
+-			retval = 0;
+-		}
+-
+-		return retval;
+-
+-	case WDIOC_KEEPALIVE:
+-		bcm47xx_wdt_pet();
+-		return 0;
+-
+-	case WDIOC_SETTIMEOUT:
+-		if (get_user(new_value, p))
+-			return -EFAULT;
+-
+-		if (bcm47xx_wdt_settimeout(new_value))
+-			return -EINVAL;
+-
+-		bcm47xx_wdt_pet();
+-
+-	case WDIOC_GETTIMEOUT:
+-		return put_user(wdt_time, p);
+-
+-	default:
+-		return -ENOTTY;
+-	}
+-}
+-
+ static int bcm47xx_wdt_notify_sys(struct notifier_block *this,
+-	unsigned long code, void *unused)
++				  unsigned long code, void *unused)
+ {
+ 	if (code == SYS_DOWN || code == SYS_HALT)
+ 		bcm47xx_wdt_stop();
+ 	return NOTIFY_DONE;
+ }
+ 
+-static const struct file_operations bcm47xx_wdt_fops = {
++static struct watchdog_ops bcm47xx_wdt_ops = {
+ 	.owner		= THIS_MODULE,
+-	.llseek		= no_llseek,
+-	.unlocked_ioctl	= bcm47xx_wdt_ioctl,
+-	.open		= bcm47xx_wdt_open,
+-	.release	= bcm47xx_wdt_release,
+-	.write		= bcm47xx_wdt_write,
++	.start		= bcm47xx_wdt_start,
++	.stop		= bcm47xx_wdt_stop,
++	.ping		= bcm47xx_wdt_keepalive,
++	.set_timeout	= bcm47xx_wdt_set_timeout,
+ };
+ 
+-static struct miscdevice bcm47xx_wdt_miscdev = {
+-	.minor		= WATCHDOG_MINOR,
+-	.name		= "watchdog",
+-	.fops		= &bcm47xx_wdt_fops,
++static struct watchdog_device bcm47xx_wdt_wdd = {
++	.info		= &bcm47xx_wdt_info,
++	.ops		= &bcm47xx_wdt_ops,
+ };
+ 
+ static struct notifier_block bcm47xx_wdt_notifier = {
+@@ -274,12 +171,13 @@ static int __init bcm47xx_wdt_init(void)
+ 		pr_info("wdt_time value must be 0 < wdt_time < %d, using %d\n",
+ 			(WDT_MAX_TIME + 1), wdt_time);
+ 	}
++	watchdog_set_nowayout(&bcm47xx_wdt_wdd, nowayout);
+ 
+ 	ret = register_reboot_notifier(&bcm47xx_wdt_notifier);
+ 	if (ret)
+ 		return ret;
+ 
+-	ret = misc_register(&bcm47xx_wdt_miscdev);
++	ret = watchdog_register_device(&bcm47xx_wdt_wdd);
+ 	if (ret) {
+ 		unregister_reboot_notifier(&bcm47xx_wdt_notifier);
+ 		return ret;
+@@ -292,10 +190,8 @@ static int __init bcm47xx_wdt_init(void)
+ 
+ static void __exit bcm47xx_wdt_exit(void)
+ {
+-	if (!nowayout)
+-		bcm47xx_wdt_stop();
+-
+-	misc_deregister(&bcm47xx_wdt_miscdev);
++	watchdog_stop(&bcm47xx_wdt_wdd);
++	watchdog_unregister_device(&bcm47xx_wdt_wdd);
+ 
+ 	unregister_reboot_notifier(&bcm47xx_wdt_notifier);
+ }
+@@ -306,4 +202,3 @@ module_exit(bcm47xx_wdt_exit);
+ MODULE_AUTHOR("Aleksandar Radovanovic");
+ MODULE_DESCRIPTION("Watchdog driver for Broadcom BCM47xx");
+ MODULE_LICENSE("GPL");
+-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/target/linux/brcm47xx/patches-3.6/541-watchdog-bcm47xx_wdt.c-use-platform-device.patch b/target/linux/brcm47xx/patches-3.6/541-watchdog-bcm47xx_wdt.c-use-platform-device.patch
new file mode 100644
index 0000000000..79bb962f78
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/541-watchdog-bcm47xx_wdt.c-use-platform-device.patch
@@ -0,0 +1,288 @@
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -3,6 +3,7 @@
+  *
+  *  Copyright (C) 2008 Aleksandar Radovanovic <biblbroks@sezampro.rs>
+  *  Copyright (C) 2009 Matthieu CASTET <castet.matthieu@free.fr>
++ *  Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
+  *
+  *  This program is free software; you can redistribute it and/or
+  *  modify it under the terms of the GNU General Public License
+@@ -12,19 +13,19 @@
+ 
+ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+ 
++#include <linux/bcm47xx_wdt.h>
+ #include <linux/bitops.h>
+ #include <linux/errno.h>
+ #include <linux/init.h>
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/moduleparam.h>
++#include <linux/platform_device.h>
+ #include <linux/reboot.h>
+ #include <linux/types.h>
+ #include <linux/watchdog.h>
+ #include <linux/timer.h>
+ #include <linux/jiffies.h>
+-#include <linux/ssb/ssb_embedded.h>
+-#include <asm/mach-bcm47xx/bcm47xx.h>
+ 
+ #define DRV_NAME		"bcm47xx_wdt"
+ 
+@@ -45,48 +46,19 @@ MODULE_PARM_DESC(nowayout,
+ 				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+ #endif
+ 
+-static struct timer_list wdt_timer;
+-static atomic_t ticks;
+-
+-static inline void bcm47xx_wdt_hw_start(void)
++static inline struct bcm47xx_wdt *bcm47xx_wdt_get(struct watchdog_device *wdd)
+ {
+-	/* this is 2,5s on 100Mhz clock  and 2s on 133 Mhz */
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0xfffffff);
+-		break;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc,
+-					       0xfffffff);
+-		break;
+-#endif
+-	}
++	return container_of(wdd, struct bcm47xx_wdt, wdd);
+ }
+ 
+-static inline int bcm47xx_wdt_hw_stop(void)
++static void bcm47xx_timer_tick(unsigned long data)
+ {
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		return ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0);
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 0);
+-		return 0;
+-#endif
+-	}
+-	return -EINVAL;
+-}
++	struct bcm47xx_wdt *wdt = (struct bcm47xx_wdt *)data;
++	u32 next_tick = min(wdt->wdd.timeout * 1000, wdt->max_timer_ms);
+ 
+-static void bcm47xx_timer_tick(unsigned long unused)
+-{
+-	if (!atomic_dec_and_test(&ticks)) {
+-		bcm47xx_wdt_hw_start();
+-		mod_timer(&wdt_timer, jiffies + HZ);
++	if (!atomic_dec_and_test(&wdt->soft_ticks)) {
++		wdt->timer_set_ms(wdt, next_tick);
++		mod_timer(&wdt->soft_timer, jiffies + HZ);
+ 	} else {
+ 		pr_crit("Watchdog will fire soon!!!\n");
+ 	}
+@@ -94,23 +66,29 @@ static void bcm47xx_timer_tick(unsigned
+ 
+ static int bcm47xx_wdt_keepalive(struct watchdog_device *wdd)
+ {
+-	atomic_set(&ticks, wdt_time);
++	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
++
++	atomic_set(&wdt->soft_ticks, wdd->timeout);
+ 
+ 	return 0;
+ }
+ 
+ static int bcm47xx_wdt_start(struct watchdog_device *wdd)
+ {
+-	bcm47xx_wdt_pet();
+-	bcm47xx_timer_tick(0);
++	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
++
++	bcm47xx_wdt_keepalive(wdd);
++	bcm47xx_timer_tick((unsigned long)wdt);
+ 
+ 	return 0;
+ }
+ 
+ static int bcm47xx_wdt_stop(struct watchdog_device *wdd)
+ {
+-	del_timer_sync(&wdt_timer);
+-	bcm47xx_wdt_hw_stop();
++	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
++
++	del_timer_sync(&wdt->soft_timer);
++	wdt->timer_set(wdt, 0);
+ 
+ 	return 0;
+ }
+@@ -118,10 +96,13 @@ static int bcm47xx_wdt_stop(struct watch
+ static int bcm47xx_wdt_set_timeout(struct watchdog_device *wdd,
+ 				   unsigned int new_time)
+ {
+-	if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
++	if (new_time < 1 || new_time > WDT_MAX_TIME) {
++		pr_warn("timeout value must be 1<=x<=%d, using %d\n",
++			WDT_MAX_TIME, new_time);
+ 		return -EINVAL;
++	}
+ 
+-	wdt_time = new_time;
++	wdd->timeout = new_time;
+ 	return 0;
+ }
+ 
+@@ -135,8 +116,11 @@ static const struct watchdog_info bcm47x
+ static int bcm47xx_wdt_notify_sys(struct notifier_block *this,
+ 				  unsigned long code, void *unused)
+ {
++	struct bcm47xx_wdt *wdt;
++
++	wdt = container_of(this, struct bcm47xx_wdt, notifier);
+ 	if (code == SYS_DOWN || code == SYS_HALT)
+-		bcm47xx_wdt_stop();
++		wdt->wdd.ops->stop(&wdt->wdd);
+ 	return NOTIFY_DONE;
+ }
+ 
+@@ -148,57 +132,72 @@ static struct watchdog_ops bcm47xx_wdt_o
+ 	.set_timeout	= bcm47xx_wdt_set_timeout,
+ };
+ 
+-static struct watchdog_device bcm47xx_wdt_wdd = {
+-	.info		= &bcm47xx_wdt_info,
+-	.ops		= &bcm47xx_wdt_ops,
+-};
+-
+-static struct notifier_block bcm47xx_wdt_notifier = {
+-	.notifier_call = bcm47xx_wdt_notify_sys,
+-};
+-
+-static int __init bcm47xx_wdt_init(void)
++static int __devinit bcm47xx_wdt_probe(struct platform_device *pdev)
+ {
+ 	int ret;
++	struct bcm47xx_wdt *wdt = dev_get_platdata(&pdev->dev);
+ 
+-	if (bcm47xx_wdt_hw_stop() < 0)
+-		return -ENODEV;
++	if (!wdt)
++		return -ENXIO;
+ 
+-	setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
++	setup_timer(&wdt->soft_timer, bcm47xx_timer_tick,
++		    (long unsigned int)wdt);
+ 
+-	if (bcm47xx_wdt_settimeout(wdt_time)) {
+-		bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);
+-		pr_info("wdt_time value must be 0 < wdt_time < %d, using %d\n",
+-			(WDT_MAX_TIME + 1), wdt_time);
+-	}
+-	watchdog_set_nowayout(&bcm47xx_wdt_wdd, nowayout);
++	wdt->wdd.ops = &bcm47xx_wdt_ops;
++	wdt->wdd.info = &bcm47xx_wdt_info;
++	wdt->wdd.timeout = WDT_DEFAULT_TIME;
++	ret = wdt->wdd.ops->set_timeout(&wdt->wdd, timeout);
++	if (ret)
++		goto err_timer;
++	watchdog_set_nowayout(&wdt->wdd, nowayout);
++
++	wdt->notifier.notifier_call = &bcm47xx_wdt_notify_sys;
+ 
+-	ret = register_reboot_notifier(&bcm47xx_wdt_notifier);
++	ret = register_reboot_notifier(&wdt->notifier);
+ 	if (ret)
+-		return ret;
++		goto err_timer;
+ 
+-	ret = watchdog_register_device(&bcm47xx_wdt_wdd);
+-	if (ret) {
+-		unregister_reboot_notifier(&bcm47xx_wdt_notifier);
+-		return ret;
+-	}
++	ret = watchdog_register_device(&wdt->wdd);
++	if (ret)
++		goto err_notifier;
+ 
+ 	pr_info("BCM47xx Watchdog Timer enabled (%d seconds%s)\n",
+ 		wdt_time, nowayout ? ", nowayout" : "");
+ 	return 0;
++
++err_notifier:
++	unregister_reboot_notifier(&wdt->notifier);
++err_timer:
++	del_timer_sync(&wdt->soft_timer);
++
++	return ret;
+ }
+ 
+-static void __exit bcm47xx_wdt_exit(void)
++static int __devexit bcm47xx_wdt_remove(struct platform_device *pdev)
+ {
+-	watchdog_stop(&bcm47xx_wdt_wdd);
+-	watchdog_unregister_device(&bcm47xx_wdt_wdd);
++	struct bcm47xx_wdt *wdt = dev_get_platdata(&pdev->dev);
++
++	if (!wdt)
++		return -ENXIO;
++
++	watchdog_unregister_device(&wdt->wdd);
++	unregister_reboot_notifier(&wdt->notifier);
+ 
+-	unregister_reboot_notifier(&bcm47xx_wdt_notifier);
++	return 0;
+ }
+ 
+-module_init(bcm47xx_wdt_init);
+-module_exit(bcm47xx_wdt_exit);
++static struct platform_driver bcm47xx_wdt_driver = {
++	.driver		= {
++		.owner	= THIS_MODULE,
++		.name	= "bcm47xx-wdt",
++	},
++	.probe		= bcm47xx_wdt_probe,
++	.remove		= __devexit_p(bcm47xx_wdt_remove),
++};
++
++module_platform_driver(bcm47xx_wdt_driver);
+ 
+ MODULE_AUTHOR("Aleksandar Radovanovic");
++MODULE_AUTHOR("Hauke Mehrtens <hauke@hauke-m.de>");
+ MODULE_DESCRIPTION("Watchdog driver for Broadcom BCM47xx");
+ MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/include/linux/bcm47xx_wdt.h
+@@ -0,0 +1,27 @@
++#ifndef LINUX_BCM47XX_WDT_H_
++#define LINUX_BCM47XX_WDT_H_
++
++#include <linux/notifier.h>
++#include <linux/timer.h>
++#include <linux/types.h>
++#include <linux/watchdog.h>
++
++
++struct bcm47xx_wdt {
++	u32 (*timer_set)(struct bcm47xx_wdt *, u32);
++	u32 (*timer_set_ms)(struct bcm47xx_wdt *, u32);
++
++	void *driver_data;
++
++	struct watchdog_device wdd;
++	struct notifier_block notifier;
++
++	struct timer_list soft_timer;
++	atomic_t soft_ticks;
++};
++
++static inline void *bcm47xx_wdt_get_drvdata(struct bcm47xx_wdt *wdt)
++{
++	return wdt->driver_data;
++}
++#endif /* LINUX_BCM47XX_WDT_H_ */
diff --git a/target/linux/brcm47xx/patches-3.6/542-watchdog-bcm47xx_wdt.c-rename-ops-methods.patch b/target/linux/brcm47xx/patches-3.6/542-watchdog-bcm47xx_wdt.c-rename-ops-methods.patch
new file mode 100644
index 0000000000..54956fd2d7
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/542-watchdog-bcm47xx_wdt.c-rename-ops-methods.patch
@@ -0,0 +1,90 @@
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -46,12 +46,13 @@ MODULE_PARM_DESC(nowayout,
+ 				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+ #endif
+ 
++
+ static inline struct bcm47xx_wdt *bcm47xx_wdt_get(struct watchdog_device *wdd)
+ {
+ 	return container_of(wdd, struct bcm47xx_wdt, wdd);
+ }
+ 
+-static void bcm47xx_timer_tick(unsigned long data)
++static void bcm47xx_wdt_soft_timer_tick(unsigned long data)
+ {
+ 	struct bcm47xx_wdt *wdt = (struct bcm47xx_wdt *)data;
+ 	u32 next_tick = min(wdt->wdd.timeout * 1000, wdt->max_timer_ms);
+@@ -64,7 +65,7 @@ static void bcm47xx_timer_tick(unsigned
+ 	}
+ }
+ 
+-static int bcm47xx_wdt_keepalive(struct watchdog_device *wdd)
++static int bcm47xx_wdt_soft_keepalive(struct watchdog_device *wdd)
+ {
+ 	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
+ 
+@@ -73,17 +74,17 @@ static int bcm47xx_wdt_keepalive(struct
+ 	return 0;
+ }
+ 
+-static int bcm47xx_wdt_start(struct watchdog_device *wdd)
++static int bcm47xx_wdt_soft_start(struct watchdog_device *wdd)
+ {
+ 	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
+ 
+-	bcm47xx_wdt_keepalive(wdd);
+-	bcm47xx_timer_tick((unsigned long)wdt);
++	bcm47xx_wdt_soft_keepalive(wdd);
++	bcm47xx_wdt_soft_timer_tick((unsigned long)wdt);
+ 
+ 	return 0;
+ }
+ 
+-static int bcm47xx_wdt_stop(struct watchdog_device *wdd)
++static int bcm47xx_wdt_soft_stop(struct watchdog_device *wdd)
+ {
+ 	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
+ 
+@@ -93,8 +94,8 @@ static int bcm47xx_wdt_stop(struct watch
+ 	return 0;
+ }
+ 
+-static int bcm47xx_wdt_set_timeout(struct watchdog_device *wdd,
+-				   unsigned int new_time)
++static int bcm47xx_wdt_soft_set_timeout(struct watchdog_device *wdd,
++					unsigned int new_time)
+ {
+ 	if (new_time < 1 || new_time > WDT_MAX_TIME) {
+ 		pr_warn("timeout value must be 1<=x<=%d, using %d\n",
+@@ -124,12 +125,12 @@ static int bcm47xx_wdt_notify_sys(struct
+ 	return NOTIFY_DONE;
+ }
+ 
+-static struct watchdog_ops bcm47xx_wdt_ops = {
++static struct watchdog_ops bcm47xx_wdt_soft_ops = {
+ 	.owner		= THIS_MODULE,
+-	.start		= bcm47xx_wdt_start,
+-	.stop		= bcm47xx_wdt_stop,
+-	.ping		= bcm47xx_wdt_keepalive,
+-	.set_timeout	= bcm47xx_wdt_set_timeout,
++	.start		= bcm47xx_wdt_soft_start,
++	.stop		= bcm47xx_wdt_soft_stop,
++	.ping		= bcm47xx_wdt_soft_keepalive,
++	.set_timeout	= bcm47xx_wdt_soft_set_timeout,
+ };
+ 
+ static int __devinit bcm47xx_wdt_probe(struct platform_device *pdev)
+@@ -140,10 +141,10 @@ static int __devinit bcm47xx_wdt_probe(s
+ 	if (!wdt)
+ 		return -ENXIO;
+ 
+-	setup_timer(&wdt->soft_timer, bcm47xx_timer_tick,
++	setup_timer(&wdt->soft_timer, bcm47xx_wdt_soft_timer_tick,
+ 		    (long unsigned int)wdt);
+ 
+-	wdt->wdd.ops = &bcm47xx_wdt_ops;
++	wdt->wdd.ops = &bcm47xx_wdt_soft_ops;
+ 	wdt->wdd.info = &bcm47xx_wdt_info;
+ 	wdt->wdd.timeout = WDT_DEFAULT_TIME;
+ 	ret = wdt->wdd.ops->set_timeout(&wdt->wdd, timeout);
diff --git a/target/linux/brcm47xx/patches-3.6/543-watchdog-bcm47xx_wdt.c-rename-wdt_timeout-to-timeout.patch b/target/linux/brcm47xx/patches-3.6/543-watchdog-bcm47xx_wdt.c-rename-wdt_timeout-to-timeout.patch
new file mode 100644
index 0000000000..c08f0b1536
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/543-watchdog-bcm47xx_wdt.c-rename-wdt_timeout-to-timeout.patch
@@ -0,0 +1,41 @@
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -30,13 +30,13 @@
+ #define DRV_NAME		"bcm47xx_wdt"
+ 
+ #define WDT_DEFAULT_TIME	30	/* seconds */
+-#define WDT_MAX_TIME		255	/* seconds */
++#define WDT_SOFTTIMER_MAX	3600	/* seconds */
+ 
+-static int wdt_time = WDT_DEFAULT_TIME;
++static int timeout = WDT_DEFAULT_TIME;
+ static bool nowayout = WATCHDOG_NOWAYOUT;
+ 
+-module_param(wdt_time, int, 0);
+-MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="
++module_param(timeout, int, 0);
++MODULE_PARM_DESC(timeout, "Watchdog time in seconds. (default="
+ 				__MODULE_STRING(WDT_DEFAULT_TIME) ")");
+ 
+ #ifdef CONFIG_WATCHDOG_NOWAYOUT
+@@ -97,9 +97,9 @@ static int bcm47xx_wdt_soft_stop(struct
+ static int bcm47xx_wdt_soft_set_timeout(struct watchdog_device *wdd,
+ 					unsigned int new_time)
+ {
+-	if (new_time < 1 || new_time > WDT_MAX_TIME) {
++	if (new_time < 1 || new_time > WDT_SOFTTIMER_MAX) {
+ 		pr_warn("timeout value must be 1<=x<=%d, using %d\n",
+-			WDT_MAX_TIME, new_time);
++			WDT_SOFTTIMER_MAX, new_time);
+ 		return -EINVAL;
+ 	}
+ 
+@@ -163,7 +163,7 @@ static int __devinit bcm47xx_wdt_probe(s
+ 		goto err_notifier;
+ 
+ 	pr_info("BCM47xx Watchdog Timer enabled (%d seconds%s)\n",
+-		wdt_time, nowayout ? ", nowayout" : "");
++		timeout, nowayout ? ", nowayout" : "");
+ 	return 0;
+ 
+ err_notifier:
diff --git a/target/linux/brcm47xx/patches-3.6/544-watchdog-bcm47xx_wdt.c-add-hard-timer.patch b/target/linux/brcm47xx/patches-3.6/544-watchdog-bcm47xx_wdt.c-add-hard-timer.patch
new file mode 100644
index 0000000000..3e67ba2bb1
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/544-watchdog-bcm47xx_wdt.c-add-hard-timer.patch
@@ -0,0 +1,120 @@
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -31,6 +31,7 @@
+ 
+ #define WDT_DEFAULT_TIME	30	/* seconds */
+ #define WDT_SOFTTIMER_MAX	3600	/* seconds */
++#define WDT_SOFTTIMER_THRESHOLD	60	/* seconds */
+ 
+ static int timeout = WDT_DEFAULT_TIME;
+ static bool nowayout = WATCHDOG_NOWAYOUT;
+@@ -52,6 +53,53 @@ static inline struct bcm47xx_wdt *bcm47x
+ 	return container_of(wdd, struct bcm47xx_wdt, wdd);
+ }
+ 
++static int bcm47xx_wdt_hard_keepalive(struct watchdog_device *wdd)
++{
++	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
++
++	wdt->timer_set_ms(wdt, wdd->timeout * 1000);
++
++	return 0;
++}
++
++static int bcm47xx_wdt_hard_start(struct watchdog_device *wdd)
++{
++	return 0;
++}
++
++static int bcm47xx_wdt_hard_stop(struct watchdog_device *wdd)
++{
++	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
++
++	wdt->timer_set(wdt, 0);
++
++	return 0;
++}
++
++static int bcm47xx_wdt_hard_set_timeout(struct watchdog_device *wdd,
++					unsigned int new_time)
++{
++	struct bcm47xx_wdt *wdt = bcm47xx_wdt_get(wdd);
++	u32 max_timer = wdt->max_timer_ms;
++
++	if (new_time < 1 || new_time > max_timer / 1000) {
++		pr_warn("timeout value must be 1<=x<=%d, using %d\n",
++			max_timer / 1000, new_time);
++		return -EINVAL;
++	}
++
++	wdd->timeout = new_time;
++	return 0;
++}
++
++static struct watchdog_ops bcm47xx_wdt_hard_ops = {
++	.owner		= THIS_MODULE,
++	.start		= bcm47xx_wdt_hard_start,
++	.stop		= bcm47xx_wdt_hard_stop,
++	.ping		= bcm47xx_wdt_hard_keepalive,
++	.set_timeout	= bcm47xx_wdt_hard_set_timeout,
++};
++
+ static void bcm47xx_wdt_soft_timer_tick(unsigned long data)
+ {
+ 	struct bcm47xx_wdt *wdt = (struct bcm47xx_wdt *)data;
+@@ -136,15 +184,22 @@ static struct watchdog_ops bcm47xx_wdt_s
+ static int __devinit bcm47xx_wdt_probe(struct platform_device *pdev)
+ {
+ 	int ret;
++	bool soft;
+ 	struct bcm47xx_wdt *wdt = dev_get_platdata(&pdev->dev);
+ 
+ 	if (!wdt)
+ 		return -ENXIO;
+ 
+-	setup_timer(&wdt->soft_timer, bcm47xx_wdt_soft_timer_tick,
+-		    (long unsigned int)wdt);
++	soft = wdt->max_timer_ms < WDT_SOFTTIMER_THRESHOLD * 1000;
++
++	if (soft) {
++		wdt->wdd.ops = &bcm47xx_wdt_soft_ops;
++		setup_timer(&wdt->soft_timer, bcm47xx_wdt_soft_timer_tick,
++			    (long unsigned int)wdt);
++	} else {
++		wdt->wdd.ops = &bcm47xx_wdt_hard_ops;
++	}
+ 
+-	wdt->wdd.ops = &bcm47xx_wdt_soft_ops;
+ 	wdt->wdd.info = &bcm47xx_wdt_info;
+ 	wdt->wdd.timeout = WDT_DEFAULT_TIME;
+ 	ret = wdt->wdd.ops->set_timeout(&wdt->wdd, timeout);
+@@ -162,14 +217,16 @@ static int __devinit bcm47xx_wdt_probe(s
+ 	if (ret)
+ 		goto err_notifier;
+ 
+-	pr_info("BCM47xx Watchdog Timer enabled (%d seconds%s)\n",
+-		timeout, nowayout ? ", nowayout" : "");
++	dev_info(&pdev->dev, "BCM47xx Watchdog Timer enabled (%d seconds%s%s)\n",
++		timeout, nowayout ? ", nowayout" : "",
++		soft ? ", Software Timer" : "");
+ 	return 0;
+ 
+ err_notifier:
+ 	unregister_reboot_notifier(&wdt->notifier);
+ err_timer:
+-	del_timer_sync(&wdt->soft_timer);
++	if (soft)
++		del_timer_sync(&wdt->soft_timer);
+ 
+ 	return ret;
+ }
+--- a/include/linux/bcm47xx_wdt.h
++++ b/include/linux/bcm47xx_wdt.h
+@@ -10,6 +10,7 @@
+ 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;
+ 
diff --git a/target/linux/brcm47xx/patches-3.6/545-bcma-add-bcma_chipco_alp_clock.patch b/target/linux/brcm47xx/patches-3.6/545-bcma-add-bcma_chipco_alp_clock.patch
new file mode 100644
index 0000000000..f6f0012a7a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/545-bcma-add-bcma_chipco_alp_clock.patch
@@ -0,0 +1,35 @@
+--- a/drivers/bcma/driver_chipcommon.c
++++ b/drivers/bcma/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.
+  */
+@@ -22,6 +23,14 @@ static inline u32 bcma_cc_write32_masked
+ 	return value;
+ }
+ 
++static u32 bcma_chipco_alp_clock(struct bcma_drv_cc *cc)
++{
++	if (cc->capabilities & BCMA_CC_CAP_PMU)
++		return bcma_pmu_alp_clock(cc);
++
++	return 20000000;
++}
++
+ void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
+ {
+ 	if (cc->early_setup_done)
+@@ -180,8 +189,7 @@ void bcma_chipco_serial_init(struct bcma
+ 	struct bcma_serial_port *ports = cc->serial_ports;
+ 
+ 	if (ccrev >= 11 && ccrev != 15) {
+-		/* Fixed ALP clock */
+-		baud_base = bcma_pmu_alp_clock(cc);
++		baud_base = bcma_chipco_alp_clock(cc);
+ 		if (ccrev >= 21) {
+ 			/* Turn off UART clock before switching clocksource. */
+ 			bcma_cc_write32(cc, BCMA_CC_CORECTL,
diff --git a/target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch b/target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch
new file mode 100644
index 0000000000..651415eb9b
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch
@@ -0,0 +1,57 @@
+--- a/drivers/bcma/driver_chipcommon.c
++++ b/drivers/bcma/driver_chipcommon.c
+@@ -31,6 +31,28 @@ static u32 bcma_chipco_alp_clock(struct
+ 	return 20000000;
+ }
+ 
++static u32 bcma_chipco_watchdog_get_max_timer(struct bcma_drv_cc *cc)
++{
++	struct bcma_bus *bus = cc->core->bus;
++	u32 nb;
++
++	if (cc->capabilities & BCMA_CC_CAP_PMU) {
++		if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
++			nb = 32;
++		else if (cc->core->id.rev < 26)
++			nb = 16;
++		else
++			nb = (cc->core->id.rev >= 37) ? 32 : 24;
++	} else {
++		nb = 28;
++	}
++	if (nb == 32)
++		return 0xffffffff;
++	else
++		return (1 << nb) - 1;
++}
++
++
+ void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
+ {
+ 	if (cc->early_setup_done)
+@@ -87,8 +109,23 @@ void bcma_core_chipcommon_init(struct bc
+ /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+ void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
+ {
+-	/* instant NMI */
+-	bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
++	u32 maxt;
++	enum bcma_clkmode clkmode;
++
++	maxt = bcma_chipco_watchdog_get_max_timer(cc);
++	if (cc->capabilities & BCMA_CC_CAP_PMU) {
++		if (ticks == 1)
++			ticks = 2;
++		else if (ticks > maxt)
++			ticks = maxt;
++		bcma_cc_write32(cc, BCMA_CC_PMU_WATCHDOG, ticks);
++	} else {
++		clkmode = ticks ? BCMA_CLKMODE_FAST : BCMA_CLKMODE_DYNAMIC;
++		bcma_core_set_clockmode(cc->core, clkmode);
++		if (ticks > maxt)
++			ticks = maxt;
++		bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
++	}
+ }
+ 
+ void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value)
diff --git a/target/linux/brcm47xx/patches-3.6/547-bcma-add-methods-for-watchdog-driver.patch b/target/linux/brcm47xx/patches-3.6/547-bcma-add-methods-for-watchdog-driver.patch
new file mode 100644
index 0000000000..1be2476d39
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/547-bcma-add-methods-for-watchdog-driver.patch
@@ -0,0 +1,93 @@
+--- a/drivers/bcma/driver_chipcommon.c
++++ b/drivers/bcma/driver_chipcommon.c
+@@ -10,6 +10,7 @@
+  */
+ 
+ #include "bcma_private.h"
++#include <linux/bcm47xx_wdt.h>
+ #include <linux/export.h>
+ #include <linux/bcma/bcma.h>
+ 
+@@ -52,6 +53,39 @@ static u32 bcma_chipco_watchdog_get_max_
+ 		return (1 << nb) - 1;
+ }
+ 
++static u32 bcma_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
++					      u32 ticks)
++{
++	struct bcma_drv_cc *cc = bcm47xx_wdt_get_drvdata(wdt);
++
++	return bcma_chipco_watchdog_timer_set(cc, ticks);
++}
++
++static u32 bcma_chipco_watchdog_timer_set_ms_wdt(struct bcm47xx_wdt *wdt,
++						 u32 ms)
++{
++	struct bcma_drv_cc *cc = bcm47xx_wdt_get_drvdata(wdt);
++	u32 ticks;
++
++	ticks = bcma_chipco_watchdog_timer_set(cc, cc->ticks_per_ms * ms);
++	return ticks / cc->ticks_per_ms;
++}
++
++static int bcma_chipco_watchdog_ticks_per_ms(struct bcma_drv_cc *cc)
++{
++	struct bcma_bus *bus = cc->core->bus;
++
++	if (cc->capabilities & BCMA_CC_CAP_PMU) {
++		if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
++			/* 4706 CC and PMU watchdogs are clocked at 1/4 of ALP clock */
++			return bcma_chipco_alp_clock(cc) / 4000;
++		else
++			/* based on 32KHz ILP clock */
++			return 32;
++	} else {
++		return bcma_chipco_alp_clock(cc) / 1000;
++	}
++}
+ 
+ void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
+ {
+@@ -102,12 +136,13 @@ void bcma_core_chipcommon_init(struct bc
+ 	}
+ 
+ 	spin_lock_init(&cc->gpio_lock);
++	cc->ticks_per_ms = bcma_chipco_watchdog_ticks_per_ms(cc);
+ 
+ 	cc->setup_done = true;
+ }
+ 
+ /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+-void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
++u32 bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
+ {
+ 	u32 maxt;
+ 	enum bcma_clkmode clkmode;
+@@ -126,6 +161,7 @@ void bcma_chipco_watchdog_timer_set(stru
+ 			ticks = maxt;
+ 		bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
+ 	}
++	return ticks;
+ }
+ 
+ void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value)
+--- a/include/linux/bcma/bcma_driver_chipcommon.h
++++ b/include/linux/bcma/bcma_driver_chipcommon.h
+@@ -554,6 +554,7 @@ struct bcma_drv_cc {
+ 
+ 	/* Lock for GPIO register access. */
+ 	spinlock_t gpio_lock;
++	u32 ticks_per_ms;
+ };
+ 
+ /* Register access */
+@@ -577,8 +578,7 @@ extern void bcma_chipco_resume(struct bc
+ 
+ void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable);
+ 
+-extern void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc,
+-					  u32 ticks);
++extern u32 bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks);
+ 
+ void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value);
+ 
diff --git a/target/linux/brcm47xx/patches-3.6/548-bcma-register-watchdog-driver.patch b/target/linux/brcm47xx/patches-3.6/548-bcma-register-watchdog-driver.patch
new file mode 100644
index 0000000000..457df36d8d
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/548-bcma-register-watchdog-driver.patch
@@ -0,0 +1,92 @@
+--- a/drivers/bcma/bcma_private.h
++++ b/drivers/bcma/bcma_private.h
+@@ -85,6 +85,8 @@ extern void __exit bcma_host_pci_exit(vo
+ /* driver_pci.c */
+ u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
+ 
++extern int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc);
++
+ #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+ bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc);
+ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
+--- a/drivers/bcma/driver_chipcommon.c
++++ b/drivers/bcma/driver_chipcommon.c
+@@ -12,6 +12,7 @@
+ #include "bcma_private.h"
+ #include <linux/bcm47xx_wdt.h>
+ #include <linux/export.h>
++#include <linux/platform_device.h>
+ #include <linux/bcma/bcma.h>
+ 
+ static inline u32 bcma_cc_write32_masked(struct bcma_drv_cc *cc, u16 offset,
+@@ -87,6 +88,27 @@ static int bcma_chipco_watchdog_ticks_pe
+ 	}
+ }
+ 
++int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc)
++{
++	struct bcm47xx_wdt wdt = {};
++	struct platform_device *pdev;
++
++	wdt.driver_data = cc;
++	wdt.timer_set = bcma_chipco_watchdog_timer_set_wdt;
++	wdt.timer_set_ms = bcma_chipco_watchdog_timer_set_ms_wdt;
++	wdt.max_timer_ms = bcma_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
++
++	pdev = platform_device_register_data(NULL, "bcm47xx-wdt",
++					     cc->core->bus->num, &wdt,
++					     sizeof(wdt));
++	if (IS_ERR(pdev))
++		return PTR_ERR(pdev);
++
++	cc->watchdog = pdev;
++
++	return 0;
++}
++
+ void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
+ {
+ 	if (cc->early_setup_done)
+--- a/drivers/bcma/main.c
++++ b/drivers/bcma/main.c
+@@ -173,6 +173,12 @@ static int bcma_register_cores(struct bc
+ 	}
+ #endif
+ 
++	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
++		err = bcma_chipco_watchdog_register(&bus->drv_cc);
++		if (err)
++			bcma_err(bus, "Error registering watchdog driver\n");
++	}
++
+ 	return 0;
+ }
+ 
+@@ -185,6 +191,8 @@ static void bcma_unregister_cores(struct
+ 		if (core->dev_registered)
+ 			device_unregister(&core->dev);
+ 	}
++	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
++		platform_device_unregister(bus->drv_cc.watchdog);
+ }
+ 
+ int __devinit bcma_bus_register(struct bcma_bus *bus)
+--- a/include/linux/bcma/bcma_driver_chipcommon.h
++++ b/include/linux/bcma/bcma_driver_chipcommon.h
+@@ -4,6 +4,8 @@
+ #include <linux/mtd/bcm47xx_sflash.h>
+ #include <linux/mtd/bcm47xx_nand.h>
+ 
++#include <linux/platform_device.h>
++
+ /** ChipCommon core registers. **/
+ #define BCMA_CC_ID			0x0000
+ #define  BCMA_CC_ID_ID			0x0000FFFF
+@@ -555,6 +557,7 @@ struct bcma_drv_cc {
+ 	/* Lock for GPIO register access. */
+ 	spinlock_t gpio_lock;
+ 	u32 ticks_per_ms;
++	struct platform_device *watchdog;
+ };
+ 
+ /* Register access */
diff --git a/target/linux/brcm47xx/patches-3.6/549-ssb-get-alp-clock-from-devices-with-PMU.patch b/target/linux/brcm47xx/patches-3.6/549-ssb-get-alp-clock-from-devices-with-PMU.patch
new file mode 100644
index 0000000000..f5912984d7
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/549-ssb-get-alp-clock-from-devices-with-PMU.patch
@@ -0,0 +1,76 @@
+--- a/drivers/ssb/driver_chipcommon.c
++++ b/drivers/ssb/driver_chipcommon.c
+@@ -280,6 +280,14 @@ 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;
++}
++
+ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
+ {
+ 	if (!cc->dev)
+@@ -474,11 +482,7 @@ int ssb_chipco_serial_init(struct ssb_ch
+ 				       | 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
+@@ -618,6 +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;
+--- a/drivers/ssb/ssb_private.h
++++ b/drivers/ssb/ssb_private.h
+@@ -210,6 +210,7 @@ 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);
+ 
+ #ifdef CONFIG_SSB_SFLASH
+ /* driver_chipcommon_sflash.c */
diff --git a/target/linux/brcm47xx/patches-3.6/550-ssb-set-the-pmu-watchdog-if-available.patch b/target/linux/brcm47xx/patches-3.6/550-ssb-set-the-pmu-watchdog-if-available.patch
new file mode 100644
index 0000000000..f7cc07bcd7
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/550-ssb-set-the-pmu-watchdog-if-available.patch
@@ -0,0 +1,54 @@
+--- a/drivers/ssb/driver_chipcommon.c
++++ b/drivers/ssb/driver_chipcommon.c
+@@ -288,6 +288,24 @@ static u32 ssb_chipco_alp_clock(struct s
+ 	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;
++}
++
+ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
+ {
+ 	if (!cc->dev)
+@@ -405,8 +423,24 @@ 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)
+ {
+-	/* 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);
++	}
+ }
+ 
+ void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value)
diff --git a/target/linux/brcm47xx/patches-3.6/551-ssb-add-methods-for-watchdog-driver.patch b/target/linux/brcm47xx/patches-3.6/551-ssb-add-methods-for-watchdog-driver.patch
new file mode 100644
index 0000000000..46911d1306
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/551-ssb-add-methods-for-watchdog-driver.patch
@@ -0,0 +1,131 @@
+--- 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"
+ 
+@@ -306,6 +308,43 @@ static u32 ssb_chipco_watchdog_get_max_t
+ 		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)
+@@ -323,6 +362,11 @@ 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)
+@@ -421,7 +465,7 @@ 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)
+ {
+ 	u32 maxt;
+ 	enum ssb_clkmode clkmode;
+@@ -441,6 +485,7 @@ void ssb_chipco_watchdog_timer_set(struc
+ 		/* instant NMI */
+ 		chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
+ 	}
++	return ticks;
+ }
+ 
+ void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value)
+--- 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: "
+@@ -226,4 +227,8 @@ static inline int ssb_sflash_init(struct
+ 
+ extern struct platform_device ssb_pflash_dev;
+ 
++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);
++
+ #endif /* LINUX_SSB_PRIVATE_H_ */
+--- a/include/linux/ssb/ssb_driver_chipcommon.h
++++ b/include/linux/ssb/ssb_driver_chipcommon.h
+@@ -607,6 +607,8 @@ struct ssb_chipcommon {
+ #ifdef CONFIG_SSB_SFLASH
+ 	struct bcm47xx_sflash sflash;
+ #endif
++	u32 ticks_per_ms;
++	u32 max_timer_ms;
+ };
+ 
+ static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
+@@ -646,8 +648,7 @@ 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);
+ 
diff --git a/target/linux/brcm47xx/patches-3.6/552-ssb-extif-add-check-for-max-value-in-watchdog.patch b/target/linux/brcm47xx/patches-3.6/552-ssb-extif-add-check-for-max-value-in-watchdog.patch
new file mode 100644
index 0000000000..c6756dd11a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/552-ssb-extif-add-check-for-max-value-in-watchdog.patch
@@ -0,0 +1,25 @@
+--- a/drivers/ssb/driver_extif.c
++++ b/drivers/ssb/driver_extif.c
+@@ -112,9 +112,10 @@ 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)
++void 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);
+ }
+ 
+--- a/include/linux/ssb/ssb_driver_extif.h
++++ b/include/linux/ssb/ssb_driver_extif.h
+@@ -152,6 +152,7 @@
+ /* watchdog */
+ #define SSB_EXTIF_WATCHDOG_CLK		48000000	/* Hz */
+ 
++#define SSB_EXTIF_WATCHDOG_MAX_TIMER	((1 << 28) - 1)
+ 
+ 
+ #ifdef CONFIG_SSB_DRIVER_EXTIF
diff --git a/target/linux/brcm47xx/patches-3.6/553-ssb-extif-add-methods-for-watchdog-driver.patch b/target/linux/brcm47xx/patches-3.6/553-ssb-extif-add-methods-for-watchdog-driver.patch
new file mode 100644
index 0000000000..555cf64dbd
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/553-ssb-extif-add-methods-for-watchdog-driver.patch
@@ -0,0 +1,89 @@
+--- a/drivers/ssb/driver_extif.c
++++ b/drivers/ssb/driver_extif.c
+@@ -112,11 +112,30 @@ 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;
+ }
+ 
+ u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask)
+--- a/drivers/ssb/ssb_private.h
++++ b/drivers/ssb/ssb_private.h
+@@ -231,4 +231,19 @@ extern u32 ssb_chipco_watchdog_timer_set
+ 					     u32 ticks);
+ extern u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
+ 
++#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
+ #endif /* LINUX_SSB_PRIVATE_H_ */
+--- a/include/linux/ssb/ssb_driver_extif.h
++++ b/include/linux/ssb/ssb_driver_extif.h
+@@ -153,6 +153,8 @@
+ #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
+@@ -172,8 +174,7 @@ 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);
+@@ -206,9 +207,9 @@ void ssb_extif_get_clockcontrol(struct s
+ }
+ 
+ static inline
+-void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
+-				  u32 ticks)
++u32 ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks)
+ {
++	return 0;
+ }
+ 
+ #endif /* CONFIG_SSB_DRIVER_EXTIF */
diff --git a/target/linux/brcm47xx/patches-3.6/554-ssb-register-watchdog-driver.patch b/target/linux/brcm47xx/patches-3.6/554-ssb-register-watchdog-driver.patch
new file mode 100644
index 0000000000..c814c54ac4
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/554-ssb-register-watchdog-driver.patch
@@ -0,0 +1,122 @@
+--- 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>
+@@ -434,6 +435,11 @@ 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)
+@@ -579,6 +585,8 @@ 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);
+--- a/drivers/ssb/ssb_private.h
++++ b/drivers/ssb/ssb_private.h
+@@ -246,4 +246,14 @@ static inline u32 ssb_extif_watchdog_tim
+ 	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 */
++
+ #endif /* LINUX_SSB_PRIVATE_H_ */
+--- a/include/linux/ssb/ssb.h
++++ b/include/linux/ssb/ssb.h
+@@ -8,6 +8,7 @@
+ #include <linux/pci.h>
+ #include <linux/mod_devicetable.h>
+ #include <linux/dma-mapping.h>
++#include <linux/platform_device.h>
+ 
+ #include <linux/ssb/ssb_regs.h>
+ 
+@@ -432,6 +433,7 @@ struct ssb_bus {
+ #ifdef CONFIG_SSB_EMBEDDED
+ 	/* Lock for GPIO register access. */
+ 	spinlock_t gpio_lock;
++	struct platform_device *watchdog;
+ #endif /* EMBEDDED */
+ 
+ 	/* Internal-only stuff follows. Do not touch. */
diff --git a/target/linux/brcm47xx/patches-3.6/900-bcm47xx_wdt-noprescale.patch b/target/linux/brcm47xx/patches-3.6/900-bcm47xx_wdt-noprescale.patch
deleted file mode 100644
index bf0a192684..0000000000
--- a/target/linux/brcm47xx/patches-3.6/900-bcm47xx_wdt-noprescale.patch
+++ /dev/null
@@ -1,103 +0,0 @@
---- a/drivers/watchdog/bcm47xx_wdt.c
-+++ b/drivers/watchdog/bcm47xx_wdt.c
-@@ -33,6 +33,7 @@
- 
- #define WDT_DEFAULT_TIME	30	/* seconds */
- #define WDT_MAX_TIME		255	/* seconds */
-+#define WDT_SHIFT		15	/* 32.768 KHz on cores with slow WDT clock */
- 
- static int wdt_time = WDT_DEFAULT_TIME;
- static bool nowayout = WATCHDOG_NOWAYOUT;
-@@ -52,20 +53,20 @@ static unsigned long bcm47xx_wdt_busy;
- static char expect_release;
- static struct timer_list wdt_timer;
- static atomic_t ticks;
-+static int needs_sw_scale;
- 
--static inline void bcm47xx_wdt_hw_start(void)
-+static inline void bcm47xx_wdt_hw_start(u32 ticks)
- {
--	/* this is 2,5s on 100Mhz clock  and 2s on 133 Mhz */
- 	switch (bcm47xx_bus_type) {
- #ifdef CONFIG_BCM47XX_SSB
- 	case BCM47XX_BUS_TYPE_SSB:
--		ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0xfffffff);
-+		ssb_watchdog_timer_set(&bcm47xx_bus.ssb, ticks);
- 		break;
- #endif
- #ifdef CONFIG_BCM47XX_BCMA
- 	case BCM47XX_BUS_TYPE_BCMA:
- 		bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc,
--					       0xfffffff);
-+					       ticks);
- 		break;
- #endif
- 	}
-@@ -90,33 +91,34 @@ static inline int bcm47xx_wdt_hw_stop(vo
- static void bcm47xx_timer_tick(unsigned long unused)
- {
- 	if (!atomic_dec_and_test(&ticks)) {
--		bcm47xx_wdt_hw_start();
-+		/* This is 2,5s on 100Mhz clock and 2s on 133 Mhz */
-+		bcm47xx_wdt_hw_start(0xfffffff);
- 		mod_timer(&wdt_timer, jiffies + HZ);
- 	} else {
- 		pr_crit("Watchdog will fire soon!!!\n");
- 	}
- }
- 
--static inline void bcm47xx_wdt_pet(void)
-+static void bcm47xx_wdt_pet(void)
- {
--	atomic_set(&ticks, wdt_time);
-+	if(needs_sw_scale)
-+		atomic_set(&ticks, wdt_time);
-+	else
-+		bcm47xx_wdt_hw_start(wdt_time << WDT_SHIFT);
- }
- 
- static void bcm47xx_wdt_start(void)
- {
- 	bcm47xx_wdt_pet();
--	bcm47xx_timer_tick(0);
--}
--
--static void bcm47xx_wdt_pause(void)
--{
--	del_timer_sync(&wdt_timer);
--	bcm47xx_wdt_hw_stop();
-+	if(needs_sw_scale)
-+		bcm47xx_timer_tick(0);
- }
- 
- static void bcm47xx_wdt_stop(void)
- {
--	bcm47xx_wdt_pause();
-+	if(needs_sw_scale)
-+		del_timer_sync(&wdt_timer);
-+	bcm47xx_wdt_hw_stop();
- }
- 
- static int bcm47xx_wdt_settimeout(int new_time)
-@@ -267,7 +269,20 @@ static int __init bcm47xx_wdt_init(void)
- 	if (bcm47xx_wdt_hw_stop() < 0)
- 		return -ENODEV;
- 
--	setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+	/* FIXME Other cores */
-+#ifdef BCM47XX_BUS_TYPE_BCMA
-+	if(bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA &&
-+	   bcm47xx_bus.ssb.chip_id == 0x5354) {
-+		/* Slow WDT clock, no pre-scaling */
-+		needs_sw_scale = 0;
-+	} else {
-+#endif
-+		/* Fast WDT clock, needs software pre-scaling */
-+		needs_sw_scale = 1;
-+		setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+#ifdef BCM47XX_BUS_TYPE_BCMA
-+	}
-+#endif
- 
- 	if (bcm47xx_wdt_settimeout(wdt_time)) {
- 		bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);