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Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch')
-rw-r--r--target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch386
1 files changed, 0 insertions, 386 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
deleted file mode 100644
index 2b3e6c1b4e..0000000000
--- a/target/linux/brcm63xx/patches-2.6.33/020-watchdog.patch
+++ /dev/null
@@ -1,386 +0,0 @@
---- 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_BCM63XX_WDT) += bcm63xx_wdt.o
-
- # PARISC Architecture
-
---- a/drivers/watchdog/Kconfig
-+++ b/drivers/watchdog/Kconfig
-@@ -840,6 +840,16 @@ config TXX9_WDT
- help
- Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
-
-+config BCM63XX_WDT
-+ tristate "Broadcom BCM63xx hardware watchdog"
-+ depends on BCM63XX
-+ help
-+ Watchdog driver for the built in watchdog hardware in Broadcom
-+ BCM63xx SoC.
-+
-+ To compile thi driver as a loadable module, choose M here.
-+ The module will be called bcm63xx_wdt.
-+
- # PARISC Architecture
-
- # POWERPC Architecture
---- /dev/null
-+++ b/drivers/watchdog/bcm63xx_wdt.c
-@@ -0,0 +1,354 @@
-+/*
-+ * Broadcom BCM63xx SoC watchdog driver
-+ *
-+ * Copyright (C) 2007, Miguel Gaio <miguel.gaio@efixo.com>
-+ * Copyright (C) 2008, Florian Fainelli <florian@openwrt.org>
-+ *
-+ * 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/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
-+
-+#define WDT_HZ 50000000 /* Fclk */
-+#define WDT_DEFAULT_TIME 30 /* seconds */
-+#define WDT_MAX_TIME 256 /* seconds */
-+
-+static struct {
-+ void __iomem *regs;
-+ struct timer_list timer;
-+ int default_ticks;
-+ unsigned long inuse;
-+ atomic_t ticks;
-+} bcm63xx_wdt_device;
-+
-+static int expect_close;
-+
-+static int wdt_time = WDT_DEFAULT_TIME;
-+static int nowayout = WATCHDOG_NOWAYOUT;
-+module_param(nowayout, int, 0);
-+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
-+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-+
-+/* HW functions */
-+static void bcm63xx_wdt_hw_start(void)
-+{
-+ bcm_writel(0xfffffffe, bcm63xx_wdt_device.regs + WDT_DEFVAL_REG);
-+ bcm_writel(WDT_START_1, bcm63xx_wdt_device.regs + WDT_CTL_REG);
-+ bcm_writel(WDT_START_2, bcm63xx_wdt_device.regs + WDT_CTL_REG);
-+}
-+
-+static void bcm63xx_wdt_hw_stop(void)
-+{
-+ bcm_writel(WDT_STOP_1, bcm63xx_wdt_device.regs + WDT_CTL_REG);
-+ 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)) {
-+ bcm63xx_wdt_hw_start();
-+ mod_timer(&bcm63xx_wdt_device.timer, jiffies + HZ);
-+ } else
-+ printk(KERN_CRIT PFX ": watchdog will restart system\n");
-+}
-+
-+static void bcm63xx_wdt_pet(void)
-+{
-+ atomic_set(&bcm63xx_wdt_device.ticks, wdt_time);
-+}
-+
-+static void bcm63xx_wdt_start(void)
-+{
-+ bcm63xx_wdt_pet();
-+ bcm63xx_timer_tick(0);
-+}
-+
-+static void bcm63xx_wdt_pause(void)
-+{
-+ del_timer_sync(&bcm63xx_wdt_device.timer);
-+ bcm63xx_wdt_hw_stop();
-+}
-+
-+static int bcm63xx_wdt_settimeout(int new_time)
-+{
-+ if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
-+ return -EINVAL;
-+
-+ wdt_time = new_time;
-+
-+ return 0;
-+}
-+
-+static int bcm63xx_wdt_open(struct inode *inode, struct file *file)
-+{
-+ if (test_and_set_bit(0, &bcm63xx_wdt_device.inuse))
-+ return -EBUSY;
-+
-+ bcm63xx_wdt_start();
-+ return nonseekable_open(inode, file);
-+}
-+
-+static int bcm63xx_wdt_release(struct inode *inode, struct file *file)
-+{
-+ if (expect_close == 42)
-+ bcm63xx_wdt_pause();
-+ else {
-+ printk(KERN_CRIT PFX
-+ ": Unexpected close, not stopping watchdog!\n");
-+ bcm63xx_wdt_start();
-+ }
-+ clear_bit(0, &bcm63xx_wdt_device.inuse);
-+ expect_close = 0;
-+ return 0;
-+}
-+
-+static ssize_t bcm63xx_wdt_write(struct file *file, const char *data,
-+ size_t len, loff_t *ppos)
-+{
-+ if (len) {
-+ if (!nowayout) {
-+ size_t i;
-+
-+ /* In case it was set long ago */
-+ expect_close = 0;
-+
-+ for (i = 0; i != len; i++) {
-+ char c;
-+ if (get_user(c, data + i))
-+ return -EFAULT;
-+ if (c == 'V')
-+ expect_close = 42;
-+ }
-+ }
-+ bcm63xx_wdt_pet();
-+ }
-+ return len;
-+}
-+
-+static struct watchdog_info bcm63xx_wdt_info = {
-+ .identity = PFX,
-+ .options = WDIOF_SETTIMEOUT |
-+ WDIOF_KEEPALIVEPING |
-+ WDIOF_MAGICCLOSE,
-+};
-+
-+
-+static long bcm63xx_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, &bcm63xx_wdt_info,
-+ sizeof(bcm63xx_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) {
-+ bcm63xx_wdt_pause();
-+ retval = 0;
-+ }
-+ if (new_value & WDIOS_ENABLECARD) {
-+ bcm63xx_wdt_start();
-+ retval = 0;
-+ }
-+
-+ return retval;
-+
-+ case WDIOC_KEEPALIVE:
-+ bcm63xx_wdt_pet();
-+ return 0;
-+
-+ case WDIOC_SETTIMEOUT:
-+ if (get_user(new_value, p))
-+ return -EFAULT;
-+
-+ if (bcm63xx_wdt_settimeout(new_value))
-+ return -EINVAL;
-+
-+ bcm63xx_wdt_pet();
-+
-+ case WDIOC_GETTIMEOUT:
-+ return put_user(wdt_time, p);
-+
-+ default:
-+ return -ENOTTY;
-+
-+ }
-+}
-+
-+static int bcm63xx_wdt_notify_sys(struct notifier_block *this,
-+ unsigned long code, void *unused)
-+{
-+ if (code == SYS_DOWN || code == SYS_HALT)
-+ bcm63xx_wdt_pause();
-+ return NOTIFY_DONE;
-+}
-+
-+static const struct file_operations bcm63xx_wdt_fops = {
-+ .owner = THIS_MODULE,
-+ .llseek = no_llseek,
-+ .write = bcm63xx_wdt_write,
-+ .unlocked_ioctl = bcm63xx_wdt_ioctl,
-+ .open = bcm63xx_wdt_open,
-+ .release = bcm63xx_wdt_release,
-+};
-+
-+static struct miscdevice bcm63xx_wdt_miscdev = {
-+ .minor = WATCHDOG_MINOR,
-+ .name = "watchdog",
-+ .fops = &bcm63xx_wdt_fops,
-+};
-+
-+static struct notifier_block bcm63xx_wdt_notifier = {
-+ .notifier_call = bcm63xx_wdt_notify_sys,
-+};
-+
-+
-+static int bcm63xx_wdt_probe(struct platform_device *pdev)
-+{
-+ int ret;
-+ struct resource *r;
-+
-+ setup_timer(&bcm63xx_wdt_device.timer, bcm63xx_timer_tick, 0L);
-+
-+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ if (!r) {
-+ printk(KERN_ERR PFX
-+ "failed to retrieve resources\n");
-+ return -ENODEV;
-+ }
-+
-+ bcm63xx_wdt_device.regs = ioremap_nocache(r->start, r->end - r->start);
-+ if (!bcm63xx_wdt_device.regs) {
-+ printk(KERN_ERR PFX
-+ "failed to remap I/O resources\n");
-+ 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
-+ ": wdt_time value must be 1 <= wdt_time <= 256, using %d\n",
-+ wdt_time);
-+ }
-+
-+ ret = register_reboot_notifier(&bcm63xx_wdt_notifier);
-+ if (ret) {
-+ printk(KERN_ERR PFX
-+ "failed to register reboot_notifier\n");
-+ goto unregister_timer;
-+ }
-+
-+ ret = misc_register(&bcm63xx_wdt_miscdev);
-+ if (ret < 0) {
-+ printk(KERN_ERR PFX
-+ "failed to register watchdog device\n");
-+ goto unregister_reboot_notifier;
-+ }
-+
-+ printk(KERN_INFO PFX " started, timer margin: %d sec\n", WDT_DEFAULT_TIME);
-+
-+ return 0;
-+
-+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;
-+}
-+
-+static int bcm63xx_wdt_remove(struct platform_device *pdev)
-+{
-+ if (!nowayout)
-+ bcm63xx_wdt_pause();
-+
-+ misc_deregister(&bcm63xx_wdt_miscdev);
-+
-+ iounmap(bcm63xx_wdt_device.regs);
-+
-+ unregister_reboot_notifier(&bcm63xx_wdt_notifier);
-+ bcm63xx_timer_unregister(TIMER_WDT_ID);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver bcm63xx_wdt = {
-+ .probe = bcm63xx_wdt_probe,
-+ .remove = bcm63xx_wdt_remove,
-+ .driver = {
-+ .name = "bcm63xx-wdt",
-+ }
-+};
-+
-+static int __init bcm63xx_wdt_init(void)
-+{
-+ return platform_driver_register(&bcm63xx_wdt);
-+}
-+
-+static void __exit bcm63xx_wdt_exit(void)
-+{
-+ platform_driver_unregister(&bcm63xx_wdt);
-+}
-+
-+module_init(bcm63xx_wdt_init);
-+module_exit(bcm63xx_wdt_exit);
-+
-+MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
-+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
-+MODULE_DESCRIPTION("Driver for the Broadcom BCM63xx SoC watchdog");
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-+MODULE_ALIAS("platform:bcm63xx-wdt");
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-25 07:46:04 +0000