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author | Hauke Mehrtens <hauke@openwrt.org> | 2009-09-26 11:51:26 +0000 |
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committer | Hauke Mehrtens <hauke@openwrt.org> | 2009-09-26 11:51:26 +0000 |
commit | e6843bba59cdd65546c4f36472198201b86d8e9d (patch) | |
tree | 2146cd452659efb15c7429f491f6f01c694af9ca /target/linux/brcm47xx/patches-2.6.31/815-watchdog.patch | |
parent | 9f266abb8cb79ab7d019688629d1ed035b1aa747 (diff) | |
download | master-187ad058-e6843bba59cdd65546c4f36472198201b86d8e9d.tar.gz master-187ad058-e6843bba59cdd65546c4f36472198201b86d8e9d.tar.bz2 master-187ad058-e6843bba59cdd65546c4f36472198201b86d8e9d.zip |
[brcm47xx] Remove patches already included in mainline kernel.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17735 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.31/815-watchdog.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-2.6.31/815-watchdog.patch | 326 |
1 files changed, 0 insertions, 326 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.31/815-watchdog.patch b/target/linux/brcm47xx/patches-2.6.31/815-watchdog.patch deleted file mode 100644 index 3d2b2a8df6..0000000000 --- a/target/linux/brcm47xx/patches-2.6.31/815-watchdog.patch +++ /dev/null @@ -1,326 +0,0 @@ -This add watchdog driver for broadcom 47xx device. -It uses the ssb subsytem to access embeded watchdog device. - -Because the watchdog timeout is very short (about 2s), a soft timer is used -to increase the watchdog period. - -Note : A patch for exporting the ssb_watchdog_timer_set will -be submitted on next linux-mips merge. Without this patch it can't -be build as a module. - -Signed-off-by: Aleksandar Radovanovic <biblbroks@sezampro.rs> -Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr> ---- a/drivers/watchdog/Kconfig -+++ b/drivers/watchdog/Kconfig -@@ -764,6 +764,12 @@ config TXX9_WDT - help - Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. - -+config BCM47XX_WDT -+ tristate "Broadcom BCM47xx Watchdog Timer" -+ depends on BCM47XX -+ help -+ Hardware driver for the Broadcom BCM47xx Watchog Timer. -+ - # PARISC Architecture - - # POWERPC Architecture ---- a/drivers/watchdog/Makefile -+++ b/drivers/watchdog/Makefile -@@ -105,6 +105,7 @@ obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o - obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o - obj-$(CONFIG_AR7_WDT) += ar7_wdt.o - obj-$(CONFIG_TXX9_WDT) += txx9wdt.o -+obj-$(CONFIG_BCM47XX_WDT) += bcm47xx_wdt.o - - # PARISC Architecture - ---- /dev/null -+++ b/drivers/watchdog/bcm47xx_wdt.c -@@ -0,0 +1,286 @@ -+/* -+ * Watchdog driver for Broadcom BCM47XX -+ * -+ * Copyright (C) 2008 Aleksandar Radovanovic <biblbroks@sezampro.rs> -+ * Copyright (C) 2009 Matthieu CASTET <castet.matthieu@free.fr> -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ */ -+ -+#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> -+#include <linux/ssb/ssb_embedded.h> -+#include <asm/mach-bcm47xx/bcm47xx.h> -+ -+#define DRV_NAME "bcm47xx_wdt" -+ -+#define WDT_DEFAULT_TIME 30 /* seconds */ -+#define WDT_MAX_TIME 256 /* seconds */ -+ -+static int wdt_time = WDT_DEFAULT_TIME; -+static int nowayout = WATCHDOG_NOWAYOUT; -+ -+module_param(wdt_time, int, 0); -+MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default=" -+ __MODULE_STRING(WDT_DEFAULT_TIME) ")"); -+ -+#ifdef CONFIG_WATCHDOG_NOWAYOUT -+module_param(nowayout, int, 0); -+MODULE_PARM_DESC(nowayout, -+ "Watchdog cannot be stopped once started (default=" -+ __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; -+ -+static inline void bcm47xx_wdt_hw_start(void) -+{ -+ /* this is 2,5s on 100Mhz clock and 2s on 133 Mhz */ -+ ssb_watchdog_timer_set(&ssb_bcm47xx, 0xfffffff); -+} -+ -+static inline int bcm47xx_wdt_hw_stop(void) -+{ -+ return ssb_watchdog_timer_set(&ssb_bcm47xx, 0); -+} -+ -+static void bcm47xx_timer_tick(unsigned long unused) -+{ -+ if (!atomic_dec_and_test(&ticks)) { -+ bcm47xx_wdt_hw_start(); -+ mod_timer(&wdt_timer, jiffies + HZ); -+ } else { -+ printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n"); -+ } -+} -+ -+static inline void bcm47xx_wdt_pet(void) -+{ -+ atomic_set(&ticks, wdt_time); -+} -+ -+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(); -+} -+ -+static void bcm47xx_wdt_stop(void) -+{ -+ bcm47xx_wdt_pause(); -+} -+ -+static int bcm47xx_wdt_settimeout(int new_time) -+{ -+ if ((new_time <= 0) || (new_time > WDT_MAX_TIME)) -+ return -EINVAL; -+ -+ wdt_time = new_time; -+ 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 { -+ printk(KERN_CRIT DRV_NAME -+ ": 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 struct watchdog_info bcm47xx_wdt_info = { -+ .identity = DRV_NAME, -+ .options = WDIOF_SETTIMEOUT | -+ WDIOF_KEEPALIVEPING | -+ 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) -+{ -+ if (code == SYS_DOWN || code == SYS_HALT) -+ bcm47xx_wdt_stop(); -+ return NOTIFY_DONE; -+} -+ -+static const struct file_operations bcm47xx_wdt_fops = { -+ .owner = THIS_MODULE, -+ .llseek = no_llseek, -+ .unlocked_ioctl = bcm47xx_wdt_ioctl, -+ .open = bcm47xx_wdt_open, -+ .release = bcm47xx_wdt_release, -+ .write = bcm47xx_wdt_write, -+}; -+ -+static struct miscdevice bcm47xx_wdt_miscdev = { -+ .minor = WATCHDOG_MINOR, -+ .name = "watchdog", -+ .fops = &bcm47xx_wdt_fops, -+}; -+ -+static struct notifier_block bcm47xx_wdt_notifier = { -+ .notifier_call = bcm47xx_wdt_notify_sys, -+}; -+ -+static int __init bcm47xx_wdt_init(void) -+{ -+ int ret; -+ -+ if (bcm47xx_wdt_hw_stop() < 0) -+ return -ENODEV; -+ -+ setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L); -+ -+ if (bcm47xx_wdt_settimeout(wdt_time)) { -+ bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME); -+ printk(KERN_INFO DRV_NAME -+ ": wdt_time value must be 1 <= wdt_time <= 256, using %d\n", -+ wdt_time); -+ } -+ -+ ret = register_reboot_notifier(&bcm47xx_wdt_notifier); -+ if (ret) -+ return ret; -+ -+ ret = misc_register(&bcm47xx_wdt_miscdev); -+ if (ret) { -+ unregister_reboot_notifier(&bcm47xx_wdt_notifier); -+ return ret; -+ } -+ -+ printk(KERN_INFO "BCM47xx Watchdog Timer enabled (%d seconds%s)\n", -+ wdt_time, nowayout ? ", nowayout" : ""); -+ return 0; -+} -+ -+static void __exit bcm47xx_wdt_exit(void) -+{ -+ if (!nowayout) -+ bcm47xx_wdt_stop(); -+ -+ misc_deregister(&bcm47xx_wdt_miscdev); -+ -+ unregister_reboot_notifier(&bcm47xx_wdt_notifier); -+} -+ -+module_init(bcm47xx_wdt_init); -+module_exit(bcm47xx_wdt_exit); -+ -+MODULE_AUTHOR("Aleksandar Radovanovic"); -+MODULE_DESCRIPTION("Watchdog driver for Broadcom BCM47xx"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); |