+++ /dev/null
-Index: linux-2.6.30.8/drivers/watchdog/Makefile
-===================================================================
---- linux-2.6.30.8.orig/drivers/watchdog/Makefile 2009-09-24 17:28:02.000000000 +0200
-+++ linux-2.6.30.8/drivers/watchdog/Makefile 2009-10-19 21:31:32.000000000 +0200
-@@ -105,6 +105,7 @@
- obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
- obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
- obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
-+obj-$(CONFIG_IFXMIPS_WDT) += ifxmips_wdt.o
-
- # PARISC Architecture
-
-Index: linux-2.6.30.8/drivers/watchdog/Kconfig
-===================================================================
---- linux-2.6.30.8.orig/drivers/watchdog/Kconfig 2009-09-24 17:28:02.000000000 +0200
-+++ linux-2.6.30.8/drivers/watchdog/Kconfig 2009-10-19 21:31:32.000000000 +0200
-@@ -764,6 +764,12 @@
- help
- Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
-
-+config IFXMIPS_WDT
-+ bool "IFXMips watchdog"
-+ depends on IFXMIPS
-+ help
-+ Hardware driver for the IFXMIPS Watchdog Timer.
-+
- # PARISC Architecture
-
- # POWERPC Architecture
-Index: linux-2.6.30.8/drivers/watchdog/ifxmips_wdt.c
-===================================================================
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-2.6.30.8/drivers/watchdog/ifxmips_wdt.c 2009-10-19 21:40:17.000000000 +0200
-@@ -0,0 +1,195 @@
-+/*
-+ * 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 wdt driver
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/fs.h>
-+#include <linux/miscdevice.h>
-+#include <linux/miscdevice.h>
-+#include <linux/watchdog.h>
-+#include <linux/platform_device.h>
-+#include <linux/uaccess.h>
-+
-+#include <ifxmips.h>
-+#include <ifxmips_cgu.h>
-+
-+#define IFXMIPS_WDT_PW1 0x00BE0000
-+#define IFXMIPS_WDT_PW2 0x00DC0000
-+
-+#ifndef CONFIG_WATCHDOG_NOWAYOUT
-+static int wdt_ok_to_close;
-+#endif
-+
-+static int wdt_timeout = 30;
-+
-+int ifxmips_wdt_enable(unsigned int timeout)
-+{
-+ u32 fpi;
-+ fpi = cgu_get_io_region_clock();
-+ ifxmips_w32(IFXMIPS_WDT_PW1, IFXMIPS_BIU_WDT_CR);
-+ ifxmips_w32(IFXMIPS_WDT_PW2 |
-+ (0x3 << 26) | /* PWL */
-+ (0x3 << 24) | /* CLKDIV */
-+ (0x1 << 31) | /* enable */
-+ ((timeout * (fpi / 0x40000)) + 0x1000), /* reload */
-+ IFXMIPS_BIU_WDT_CR);
-+ return 0;
-+}
-+
-+void ifxmips_wdt_disable(void)
-+{
-+#ifndef CONFIG_WATCHDOG_NOWAYOUT
-+ wdt_ok_to_close = 0;
-+#endif
-+ ifxmips_w32(IFXMIPS_WDT_PW1, IFXMIPS_BIU_WDT_CR);
-+ ifxmips_w32(IFXMIPS_WDT_PW2, IFXMIPS_BIU_WDT_CR);
-+}
-+
-+static ssize_t ifxmips_wdt_write(struct file *file, const char __user *data,
-+ size_t len, loff_t *ppos)
-+{
-+ size_t i;
-+
-+ if (!len)
-+ return 0;
-+
-+#ifndef CONFIG_WATCHDOG_NOWAYOUT
-+ for (i = 0; i != len; i++) {
-+ char c;
-+ if (get_user(c, data + i))
-+ return -EFAULT;
-+ if (c == 'V')
-+ wdt_ok_to_close = 1;
-+ }
-+#endif
-+ ifxmips_wdt_enable(wdt_timeout);
-+ return len;
-+}
-+
-+static struct watchdog_info ident = {
-+ .options = WDIOF_MAGICCLOSE,
-+ .identity = "ifxmips Watchdog",
-+};
-+
-+static int ifxmips_wdt_ioctl(struct inode *inode, struct file *file,
-+ unsigned int cmd, unsigned long arg)
-+{
-+ int ret = -ENOTTY;
-+
-+ switch (cmd) {
-+ case WDIOC_GETSUPPORT:
-+ ret = copy_to_user((struct watchdog_info __user *)arg, &ident,
-+ sizeof(ident)) ? -EFAULT : 0;
-+ break;
-+
-+ case WDIOC_GETTIMEOUT:
-+ ret = put_user(wdt_timeout, (int __user *)arg);
-+ break;
-+
-+ case WDIOC_SETTIMEOUT:
-+ ret = get_user(wdt_timeout, (int __user *)arg);
-+ break;
-+
-+ case WDIOC_KEEPALIVE:
-+ ifxmips_wdt_enable(wdt_timeout);
-+ ret = 0;
-+ break;
-+ }
-+ return ret;
-+}
-+
-+static int ifxmips_wdt_open(struct inode *inode, struct file *file)
-+{
-+ ifxmips_wdt_enable(wdt_timeout);
-+ return nonseekable_open(inode, file);
-+}
-+
-+static int ifxmips_wdt_release(struct inode *inode, struct file *file)
-+{
-+#ifndef CONFIG_WATCHDOG_NOWAYOUT
-+ if (wdt_ok_to_close)
-+ ifxmips_wdt_disable();
-+ else
-+#endif
-+ printk(KERN_ERR "ifxmips_wdt: watchdog closed without warning,"
-+ " rebooting system\n");
-+ return 0;
-+}
-+
-+static const struct file_operations ifxmips_wdt_fops = {
-+ .owner = THIS_MODULE,
-+ .write = ifxmips_wdt_write,
-+ .ioctl = ifxmips_wdt_ioctl,
-+ .open = ifxmips_wdt_open,
-+ .release = ifxmips_wdt_release,
-+};
-+
-+static struct miscdevice ifxmips_wdt_miscdev = {
-+ .minor = WATCHDOG_MINOR,
-+ .name = "watchdog",
-+ .fops = &ifxmips_wdt_fops,
-+};
-+
-+static int ifxmips_wdt_probe(struct platform_device *dev)
-+{
-+ int err;
-+ err = misc_register(&ifxmips_wdt_miscdev);
-+ if (err)
-+ printk(KERN_INFO "ifxmips_wdt: error creating device\n");
-+ else
-+ printk(KERN_INFO "ifxmips_wdt: loaded\n");
-+ return err;
-+}
-+
-+static int ifxmips_wdt_remove(struct platform_device *dev)
-+{
-+ ifxmips_wdt_disable();
-+ misc_deregister(&ifxmips_wdt_miscdev);
-+ return 0;
-+}
-+
-+
-+static struct platform_driver ifxmips_wdt_driver = {
-+ .probe = ifxmips_wdt_probe,
-+ .remove = ifxmips_wdt_remove,
-+ .driver = {
-+ .name = "ifxmips_wdt",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+
-+static int __init init_ifxmips_wdt(void)
-+{
-+ int ret = platform_driver_register(&ifxmips_wdt_driver);
-+ if (ret)
-+ printk(KERN_INFO "ifxmips_wdt: error registering platfom driver!");
-+ return ret;
-+}
-+
-+static void __exit exit_ifxmips_wdt(void)
-+{
-+ platform_driver_unregister(&ifxmips_wdt_driver);
-+}
-+
-+module_init(init_ifxmips_wdt);
-+module_exit(exit_ifxmips_wdt);
-+
-+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
-+MODULE_DESCRIPTION("ifxmips Watchdog");
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
projects / openwrt / openwrt.git / blobdiff