diff options
Diffstat (limited to 'target/linux/atheros/patches-2.6.33/130-watchdog.patch')
| -rw-r--r-- | target/linux/atheros/patches-2.6.33/130-watchdog.patch | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/target/linux/atheros/patches-2.6.33/130-watchdog.patch b/target/linux/atheros/patches-2.6.33/130-watchdog.patch deleted file mode 100644 index ed80e79..0000000 --- a/target/linux/atheros/patches-2.6.33/130-watchdog.patch +++ /dev/null @@ -1,228 +0,0 @@ ---- /dev/null -+++ b/drivers/watchdog/ar2315-wtd.c -@@ -0,0 +1,200 @@ -+/* -+ * 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. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -+ * -+ * Copyright (C) 2008 John Crispin <blogic@openwrt.org> -+ * Based on EP93xx and ifxmips wdt driver -+ */ -+ -+#include <linux/interrupt.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/types.h> -+#include <linux/miscdevice.h> -+#include <linux/watchdog.h> -+#include <linux/fs.h> -+#include <linux/ioport.h> -+#include <linux/notifier.h> -+#include <linux/reboot.h> -+#include <linux/init.h> -+#include <linux/platform_device.h> -+ -+#include <asm/io.h> -+#include <asm/uaccess.h> -+#include <asm/system.h> -+#include <asm/addrspace.h> -+#include <ar231x_platform.h> -+#include <ar2315_regs.h> -+#include <ar231x.h> -+ -+#define CLOCK_RATE 40000000 -+#define HEARTBEAT(x) (x < 1 || x > 90)?(20):(x) -+ -+static int wdt_timeout = 20; -+static int started = 0; -+static int in_use = 0; -+ -+static void -+ar2315_wdt_enable(void) -+{ -+ ar231x_write_reg(AR2315_WD, wdt_timeout * CLOCK_RATE); -+ ar231x_write_reg(AR2315_ISR, 0x80); -+} -+ -+static ssize_t -+ar2315_wdt_write(struct file *file, const char __user *data, size_t len, loff_t *ppos) -+{ -+ if(len) -+ ar2315_wdt_enable(); -+ return len; -+} -+ -+static int -+ar2315_wdt_open(struct inode *inode, struct file *file) -+{ -+ if(in_use) -+ return -EBUSY; -+ ar2315_wdt_enable(); -+ in_use = started = 1; -+ return nonseekable_open(inode, file); -+} -+ -+static int -+ar2315_wdt_release(struct inode *inode, struct file *file) -+{ -+ in_use = 0; -+ return 0; -+} -+ -+static irqreturn_t -+ar2315_wdt_interrupt(int irq, void *dev_id) -+{ -+ if(started) -+ { -+ printk(KERN_CRIT "watchdog expired, rebooting system\n"); -+ emergency_restart(); -+ } else { -+ ar231x_write_reg(AR2315_WDC, 0); -+ ar231x_write_reg(AR2315_WD, 0); -+ ar231x_write_reg(AR2315_ISR, 0x80); -+ } -+ return IRQ_HANDLED; -+} -+ -+static struct watchdog_info ident = { -+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, -+ .identity = "ar2315 Watchdog", -+}; -+ -+static int -+ar2315_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -+{ -+ int new_wdt_timeout; -+ int ret = -ENOIOCTLCMD; -+ -+ switch(cmd) -+ { -+ case WDIOC_GETSUPPORT: -+ ret = copy_to_user((struct watchdog_info __user *)arg, &ident, sizeof(ident)) ? -EFAULT : 0; -+ break; -+ -+ case WDIOC_KEEPALIVE: -+ ar2315_wdt_enable(); -+ ret = 0; -+ break; -+ -+ case WDIOC_SETTIMEOUT: -+ if((ret = get_user(new_wdt_timeout, (int __user *)arg))) -+ break; -+ wdt_timeout = HEARTBEAT(new_wdt_timeout); -+ ar2315_wdt_enable(); -+ break; -+ -+ case WDIOC_GETTIMEOUT: -+ ret = put_user(wdt_timeout, (int __user *)arg); -+ break; -+ } -+ return ret; -+} -+ -+static struct file_operations ar2315_wdt_fops = { -+ .owner = THIS_MODULE, -+ .llseek = no_llseek, -+ .write = ar2315_wdt_write, -+ .ioctl = ar2315_wdt_ioctl, -+ .open = ar2315_wdt_open, -+ .release = ar2315_wdt_release, -+}; -+ -+static struct miscdevice ar2315_wdt_miscdev = { -+ .minor = WATCHDOG_MINOR, -+ .name = "watchdog", -+ .fops = &ar2315_wdt_fops, -+}; -+ -+static int -+ar2315_wdt_probe(struct platform_device *dev) -+{ -+ int ret = 0; -+ -+ ar2315_wdt_enable(); -+ ret = request_irq(AR531X_MISC_IRQ_WATCHDOG, ar2315_wdt_interrupt, IRQF_DISABLED, "ar2315_wdt", NULL); -+ if(ret) -+ { -+ printk(KERN_ERR "ar2315wdt: failed to register inetrrupt\n"); -+ goto out; -+ } -+ -+ ret = misc_register(&ar2315_wdt_miscdev); -+ if(ret) -+ printk(KERN_ERR "ar2315wdt: failed to register miscdev\n"); -+ -+out: -+ return ret; -+} -+ -+static int -+ar2315_wdt_remove(struct platform_device *dev) -+{ -+ misc_deregister(&ar2315_wdt_miscdev); -+ free_irq(AR531X_MISC_IRQ_WATCHDOG, NULL); -+ return 0; -+} -+ -+static struct platform_driver ar2315_wdt_driver = { -+ .probe = ar2315_wdt_probe, -+ .remove = ar2315_wdt_remove, -+ .driver = { -+ .name = "ar2315_wdt", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init -+init_ar2315_wdt(void) -+{ -+ int ret = platform_driver_register(&ar2315_wdt_driver); -+ if(ret) -+ printk(KERN_INFO "ar2315_wdt: error registering platfom driver!"); -+ return ret; -+} -+ -+static void __exit -+exit_ar2315_wdt(void) -+{ -+ platform_driver_unregister(&ar2315_wdt_driver); -+} -+ -+module_init(init_ar2315_wdt); -+module_exit(exit_ar2315_wdt); ---- a/drivers/watchdog/Kconfig -+++ b/drivers/watchdog/Kconfig -@@ -840,6 +840,12 @@ config TXX9_WDT - help - Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. - -+config ATHEROS_WDT -+ tristate "Atheros wisoc Watchdog Timer" -+ depends on ATHEROS_AR231X -+ help -+ Hardware driver for the Atheros wisoc Watchdog Timer. -+ - # PARISC Architecture - - # POWERPC Architecture ---- a/drivers/watchdog/Makefile -+++ b/drivers/watchdog/Makefile -@@ -112,6 +112,7 @@ obj-$(CONFIG_PNX833X_WDT) += pnx833x_wdt - obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o - obj-$(CONFIG_AR7_WDT) += ar7_wdt.o - obj-$(CONFIG_TXX9_WDT) += txx9wdt.o -+obj-$(CONFIG_ATHEROS_WDT) += ar2315-wtd.o - - # PARISC Architecture - |