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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 | 1a07f812391a5f3f8a6e619f59256239c129f7a3 (patch) | |
| tree | f5eb1c7a96052a4de2f7cbc4b10ac85149ef2b17 /target/linux/brcm63xx/patches-2.6.33 | |
| parent | ec5a469c740ce9ce6b1719e32d82b7368c90540c (diff) | |
| download | upstream-1a07f812391a5f3f8a6e619f59256239c129f7a3.tar.gz upstream-1a07f812391a5f3f8a6e619f59256239c129f7a3.tar.bz2 upstream-1a07f812391a5f3f8a6e619f59256239c129f7a3.zip | |
extend bcm63xx_wdt driver for debugging purposes, thx Miguel
SVN-Revision: 21199
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.33')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch b/target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch index b4204d8f10..2b3e6c1b4e 100644 --- a/target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch +++ b/target/linux/brcm63xx/patches-2.6.33/020-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; +} |