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authorRaphaël Huck <rhk@cksum.org>2010-04-27 15:45:03 +0000
committerRaphaël Huck <rhk@cksum.org>2010-04-27 15:45:03 +0000
commit1a07f812391a5f3f8a6e619f59256239c129f7a3 (patch)
treef5eb1c7a96052a4de2f7cbc4b10ac85149ef2b17 /target/linux/brcm63xx
parentec5a469c740ce9ce6b1719e32d82b7368c90540c (diff)
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extend bcm63xx_wdt driver for debugging purposes, thx Miguel
SVN-Revision: 21199
Diffstat (limited to 'target/linux/brcm63xx')
-rw-r--r--target/linux/brcm63xx/patches-2.6.32/020-watchdog.patch30
-rw-r--r--target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch30
2 files changed, 50 insertions, 10 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 0d0a21a..511bce7 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;
+}
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 b4204d8..2b3e6c1 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;
+}