From 9a462204d13bd8acd735f8111dc7f9412e812b33 Mon Sep 17 00:00:00 2001
From: hauke <hauke@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sat, 24 Nov 2012 20:07:25 +0000
Subject: 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
---
 .../554-ssb-register-watchdog-driver.patch         | 122 +++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 target/linux/brcm47xx/patches-3.6/554-ssb-register-watchdog-driver.patch

(limited to 'target/linux/brcm47xx/patches-3.6/554-ssb-register-watchdog-driver.patch')

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 000000000..c814c54ac
--- /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. */
-- 
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