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-rw-r--r--target/linux/coldfire/patches/075-mcfv4e_watchdog.patch265
1 files changed, 0 insertions, 265 deletions
diff --git a/target/linux/coldfire/patches/075-mcfv4e_watchdog.patch b/target/linux/coldfire/patches/075-mcfv4e_watchdog.patch
deleted file mode 100644
index 5b865bdd32..0000000000
--- a/target/linux/coldfire/patches/075-mcfv4e_watchdog.patch
+++ /dev/null
@@ -1,265 +0,0 @@
-From 3c6c80a04d6ca99c4f9fbb5e4f279bd644b2df48 Mon Sep 17 00:00:00 2001
-From: Kurt Mahan <kmahan@freescale.com>
-Date: Tue, 8 Jul 2008 14:10:46 -0600
-Subject: [PATCH] Add Coldfire Watchdog support.
-
-LTIBName: mcfv4e-watchdog
-Signed-off-by: Kurt Mahan <kmahan@freescale.com>
----
- drivers/watchdog/Kconfig | 9 ++
- drivers/watchdog/Makefile | 1 +
- drivers/watchdog/mcf_wdt.c | 220 ++++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 230 insertions(+), 0 deletions(-)
- create mode 100644 drivers/watchdog/mcf_wdt.c
-
---- a/drivers/watchdog/Kconfig
-+++ b/drivers/watchdog/Kconfig
-@@ -672,6 +672,15 @@ config TXX9_WDT
-
- # PARISC Architecture
-
-+# ColdFire Architecture
-+
-+config COLDFIRE_WATCHDOG
-+ tristate "ColdFire watchdog support"
-+ depends on WATCHDOG
-+ help
-+ To compile this driver as a module, choose M here: the
-+ module will be called softdog.
-+
- # POWERPC Architecture
-
- config MPC5200_WDT
---- a/drivers/watchdog/Makefile
-+++ b/drivers/watchdog/Makefile
-@@ -86,6 +86,7 @@ obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc
- # M32R Architecture
-
- # M68K Architecture
-+obj-$(CONFIG_COLDFIRE_WATCHDOG) += mcf_wdt.o
-
- # M68KNOMMU Architecture
-
---- /dev/null
-+++ b/drivers/watchdog/mcf_wdt.c
-@@ -0,0 +1,220 @@
-+/*
-+ * drivers/watchdog/mcf_wdt.c
-+ *
-+ * Watchdog driver for ColdFire processors
-+ *
-+ * Adapted from the IXP4xx watchdog driver.
-+ * The original version carries these notices:
-+ *
-+ * Author: Deepak Saxena <dsaxena@plexity.net>
-+ *
-+ * Copyright 2004 (c) MontaVista, Software, Inc.
-+ * Based on sa1100 driver, Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
-+ *
-+ * This file is licensed under the terms of the GNU General Public
-+ * License version 2. This program is licensed "as is" without any
-+ * warranty of any kind, whether express or implied.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/moduleparam.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/fs.h>
-+#include <linux/miscdevice.h>
-+#include <linux/watchdog.h>
-+#include <linux/init.h>
-+#include <linux/bitops.h>
-+
-+#include <asm-m68k/uaccess.h>
-+#include <asm-m68k/coldfire.h>
-+#include <asm-m68k/m5485gpt.h>
-+
-+static int nowayout;
-+static unsigned int heartbeat = 30; /* (secs) Default is 0.5 minute */
-+static unsigned long wdt_status;
-+
-+#define WDT_IN_USE 0
-+#define WDT_OK_TO_CLOSE 1
-+
-+static unsigned long wdt_tick_rate;
-+
-+static void
-+wdt_enable(void)
-+{
-+ MCF_GPT_GMS0 = 0;
-+ MCF_GPT_GCIR0 = MCF_GPT_GCIR_PRE(heartbeat*wdt_tick_rate) |
-+ MCF_GPT_GCIR_CNT(0xffff);
-+ MCF_GPT_GMS0 = MCF_GPT_GMS_OCPW(0xA5) | MCF_GPT_GMS_WDEN |
-+ MCF_GPT_GMS_CE | MCF_GPT_GMS_TMS_GPIO;
-+}
-+
-+static void
-+wdt_disable(void)
-+{
-+ MCF_GPT_GMS0 = 0;
-+}
-+
-+static void
-+wdt_keepalive(void)
-+{
-+ MCF_GPT_GMS0 = MCF_GPT_GMS_OCPW(0xA5) | MCF_GPT_GMS0;
-+}
-+
-+static int
-+mcf_wdt_open(struct inode *inode, struct file *file)
-+{
-+ if (test_and_set_bit(WDT_IN_USE, &wdt_status))
-+ return -EBUSY;
-+
-+ clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-+
-+ wdt_enable();
-+
-+ return nonseekable_open(inode, file);
-+}
-+
-+static ssize_t
-+mcf_wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos)
-+{
-+ if (len) {
-+ if (!nowayout) {
-+ size_t i;
-+
-+ clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-+
-+ for (i = 0; i != len; i++) {
-+ char c;
-+
-+ if (get_user(c, data + i))
-+ return -EFAULT;
-+ if (c == 'V')
-+ set_bit(WDT_OK_TO_CLOSE, &wdt_status);
-+ }
-+ }
-+ wdt_keepalive();
-+ }
-+
-+ return len;
-+}
-+
-+
-+static struct watchdog_info ident = {
-+ .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
-+ WDIOF_KEEPALIVEPING,
-+ .identity = "Coldfire Watchdog",
-+};
-+
-+static int
-+mcf_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-+ unsigned long arg)
-+{
-+ int ret = -ENOIOCTLCMD;
-+ int time;
-+
-+ switch (cmd) {
-+ case WDIOC_GETSUPPORT:
-+ ret = copy_to_user((struct watchdog_info *)arg, &ident,
-+ sizeof(ident)) ? -EFAULT : 0;
-+ break;
-+
-+ case WDIOC_GETSTATUS:
-+ ret = put_user(0, (int *)arg);
-+ break;
-+
-+ case WDIOC_GETBOOTSTATUS:
-+ ret = put_user(0, (int *)arg);
-+ break;
-+
-+ case WDIOC_SETTIMEOUT:
-+ ret = get_user(time, (int *)arg);
-+ if (ret)
-+ break;
-+
-+ if (time <= 0 || time > 30) {
-+ ret = -EINVAL;
-+ break;
-+ }
-+
-+ heartbeat = time;
-+ wdt_enable();
-+ /* Fall through */
-+
-+ case WDIOC_GETTIMEOUT:
-+ ret = put_user(heartbeat, (int *)arg);
-+ break;
-+
-+ case WDIOC_KEEPALIVE:
-+ wdt_keepalive();
-+ ret = 0;
-+ break;
-+ }
-+
-+ return ret;
-+}
-+
-+static int
-+mcf_wdt_release(struct inode *inode, struct file *file)
-+{
-+ if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) {
-+ wdt_disable();
-+ } else {
-+ printk(KERN_CRIT "WATCHDOG: Device closed unexpectdly - "
-+ "timer will not stop\n");
-+ }
-+
-+ clear_bit(WDT_IN_USE, &wdt_status);
-+ clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-+
-+ return 0;
-+}
-+
-+
-+static struct file_operations mcf_wdt_fops = {
-+ .owner = THIS_MODULE,
-+ .llseek = no_llseek,
-+ .write = mcf_wdt_write,
-+ .ioctl = mcf_wdt_ioctl,
-+ .open = mcf_wdt_open,
-+ .release = mcf_wdt_release,
-+};
-+
-+static struct miscdevice mcf_wdt_miscdev = {
-+ .minor = WATCHDOG_MINOR,
-+ .name = "watchdog",
-+ .fops = &mcf_wdt_fops,
-+};
-+
-+static int __init mcf_wdt_init(void)
-+{
-+ wdt_tick_rate = MCF_BUSCLK/0xffff;
-+#ifdef CONFIG_WATCHDOG_NOWAYOUT
-+ nowayout = 1;
-+#else
-+ nowayout = 0;
-+#endif
-+ printk("ColdFire watchdog driver is loaded.\n");
-+
-+ return misc_register(&mcf_wdt_miscdev);
-+}
-+
-+static void __exit mcf_wdt_exit(void)
-+{
-+ misc_deregister(&mcf_wdt_miscdev);
-+}
-+
-+module_init(mcf_wdt_init);
-+module_exit(mcf_wdt_exit);
-+
-+MODULE_AUTHOR("Deepak Saxena");
-+MODULE_DESCRIPTION("ColdFire Watchdog");
-+
-+module_param(heartbeat, int, 0);
-+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)");
-+
-+module_param(nowayout, int, 0);
-+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
-+
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-+
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