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| author | Raphaël HUCK <rhk@cksum.org> | 2010-04-27 15:45:03 +0000 |
|---|---|---|
| committer | Raphaël HUCK <rhk@cksum.org> | 2010-04-27 15:45:03 +0000 |
| commit | 2c0aef5df799db53a01287c162c9436fd8018d97 (patch) | |
| tree | aea01117a5a9c53df9a492136b46c14de5489c5e /target/linux/brcm63xx/patches-2.6.32 | |
| parent | 8f318ad8168fe50b8ef6a39d99ee0fb615053c04 (diff) | |
| download | upstream-2c0aef5df799db53a01287c162c9436fd8018d97.tar.gz upstream-2c0aef5df799db53a01287c162c9436fd8018d97.tar.bz2 upstream-2c0aef5df799db53a01287c162c9436fd8018d97.zip | |
[brcm63xx] extend bcm63xx_wdt driver for debugging purposes, thx Miguel
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21199 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.32')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.32/020-watchdog.patch | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.32/020-watchdog.patch b/target/linux/brcm63xx/patches-2.6.32/020-watchdog.patch index 0d0a21aeb7..511bce7112 100644 --- a/target/linux/brcm63xx/patches-2.6.32/020-watchdog.patch +++ b/target/linux/brcm63xx/patches-2.6.32/020-watchdog.patch @@ -29,7 +29,7 @@ # POWERPC Architecture --- /dev/null +++ b/drivers/watchdog/bcm63xx_wdt.c -@@ -0,0 +1,334 @@ +@@ -0,0 +1,354 @@ +/* + * Broadcom BCM63xx SoC watchdog driver + * @@ -56,12 +56,15 @@ +#include <linux/watchdog.h> +#include <linux/timer.h> +#include <linux/jiffies.h> ++#include <linux/interrupt.h> ++#include <linux/ptrace.h> +#include <linux/resource.h> +#include <linux/platform_device.h> + +#include <bcm63xx_cpu.h> +#include <bcm63xx_io.h> +#include <bcm63xx_regs.h> ++#include <bcm63xx_timer.h> + +#define PFX KBUILD_MODNAME + @@ -78,7 +81,6 @@ +} bcm63xx_wdt_device; + +static int expect_close; -+static int timeout; + +static int wdt_time = WDT_DEFAULT_TIME; +static int nowayout = WATCHDOG_NOWAYOUT; @@ -100,6 +102,13 @@ + bcm_writel(WDT_STOP_2, bcm63xx_wdt_device.regs + WDT_CTL_REG); +} + ++static void bcm63xx_wdt_isr(void *data) ++{ ++ struct pt_regs *regs = get_irq_regs(); ++ ++ die(PFX " fire", regs); ++} ++ +static void bcm63xx_timer_tick(unsigned long unused) +{ + if (!atomic_dec_and_test(&bcm63xx_wdt_device.ticks)) { @@ -292,6 +301,13 @@ + return -ENXIO; + } + ++ ret = bcm63xx_timer_register(TIMER_WDT_ID, bcm63xx_wdt_isr, NULL); ++ if (ret < 0) { ++ printk(KERN_ERR PFX ++ "failed to register wdt timer isr\n"); ++ goto unmap; ++ } ++ + if (bcm63xx_wdt_settimeout(wdt_time)) { + bcm63xx_wdt_settimeout(WDT_DEFAULT_TIME); + printk(KERN_INFO PFX @@ -303,22 +319,25 @@ + if (ret) { + printk(KERN_ERR PFX + "failed to register reboot_notifier\n"); -+ return ret; ++ goto unregister_timer; + } + + ret = misc_register(&bcm63xx_wdt_miscdev); + if (ret < 0) { + printk(KERN_ERR PFX + "failed to register watchdog device\n"); -+ goto unmap; ++ goto unregister_reboot_notifier; + } + + printk(KERN_INFO PFX " started, timer margin: %d sec\n", WDT_DEFAULT_TIME); + + return 0; + -+unmap: ++unregister_reboot_notifier: + unregister_reboot_notifier(&bcm63xx_wdt_notifier); ++unregister_timer: ++ bcm63xx_timer_unregister(TIMER_WDT_ID); ++unmap: + iounmap(bcm63xx_wdt_device.regs); + return ret; +} @@ -333,6 +352,7 @@ + iounmap(bcm63xx_wdt_device.regs); + + unregister_reboot_notifier(&bcm63xx_wdt_notifier); ++ bcm63xx_timer_unregister(TIMER_WDT_ID); + + return 0; +} |