import clean BK tree at cset 1.3670

1 files changed, 231 insertions, 0 deletions

diff --git a/packages/linux/linux-mtx-1-2.4.27/21-mtx-1-watchdog.diff b/packages/linux/linux-mtx-1-2.4.27/21-mtx-1-watchdog.diff
index e69de29bb2..b58f2cdd6b 100644
--- a/packages/linux/linux-mtx-1-2.4.27/21-mtx-1-watchdog.diff
+++ b/packages/linux/linux-mtx-1-2.4.27/21-mtx-1-watchdog.diff
@@ -0,0 +1,231 @@
+diff -Nurb linux/arch/mips/au1000/mtx-1/Makefile linux.wd/arch/mips/au1000/mtx-1/Makefile
+--- linux/arch/mips/au1000/mtx-1/Makefile	2004-11-24 12:11:54.000000000 +0100
++++ linux.wd/arch/mips/au1000/mtx-1/Makefile	2005-03-09 17:58:40.000000000 +0100
+@@ -15,6 +15,6 @@
+ 
+ O_TARGET := mtx-1.o
+ 
+-obj-y := init.o board_setup.o irqmap.o
++obj-y := init.o board_setup.o irqmap.o mtx-1_watchdog.o
+ 
+ include $(TOPDIR)/Rules.make
+diff -Nurb linux/arch/mips/au1000/mtx-1/mtx-1_watchdog.c linux.wd/arch/mips/au1000/mtx-1/mtx-1_watchdog.c
+--- linux/arch/mips/au1000/mtx-1/mtx-1_watchdog.c	1970-01-01 01:00:00.000000000 +0100
++++ linux.wd/arch/mips/au1000/mtx-1/mtx-1_watchdog.c	2005-03-09 18:28:06.000000000 +0100
+@@ -0,0 +1,216 @@
++/*
++ *      Driver for the MTX-1 Watchdog.
++ *
++ *      (c) Copyright 2005 4G Systems <info@4g-systems.biz>, All Rights Reserved.
++ *                              http://www.4g-systems.biz
++ *
++ *      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.
++ *
++ *      Neither Michael Stickel nor 4G Systems admit liability nor provide
++ *      warranty for any of this software. This material is provided
++ *      "AS-IS" and at no charge.
++ *
++ *      (c) Copyright 2005    4G Systems <info@4g-systems.biz>
++ *
++ *      Release 0.01.
++ *
++ *      Author: Michael Stickel  michael.stickel@4g-systems.biz
++ *
++ *
++ *      The Watchdog is configured to reset the MTX-1
++ *      if it is not triggered for 100 seconds.
++ *      It should not be triggered more often than 1.6 seconds.
++ *
++ *      A timer triggers the watchdog every 5 seconds, until
++ *      it is opened for the first time. After the first open
++ *      it MUST be triggered every 2..95 seconds.
++ */
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/miscdevice.h>
++#include <linux/watchdog.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++
++#include <asm/au1000.h>
++
++
++#ifndef FALSE
++# define FALSE (0)
++#endif
++
++#ifndef TRUE
++# define TRUE (!FALSE)
++#endif
++
++
++//---------[ Hardware Functions ]-----------------
++
++static void mtx1_trigger_wd (void)
++{
++	/*
++	 * toggle GPIO2_15
++	 */
++
++	u32 tmp = au_readl(GPIO2_DIR);
++	tmp = (tmp & ~(1<<15)) | ((~tmp) & (1<<15));
++	au_writel (tmp, GPIO2_DIR);
++}
++
++static void mtx1_enable_wd (void)
++{
++	au_writel (au_readl(GPIO2_DIR) | (u32)(1<<15), GPIO2_DIR);
++}
++
++static void mtx1_disable_wd (void)
++{
++	au_writel (au_readl(GPIO2_DIR) & ~((u32)(1<<15)), GPIO2_DIR);
++}
++
++
++//---------[ Timer Functions ]-----------------
++
++static struct timer_list   wd_trigger_timer;
++static char                timer_is_running = FALSE;
++
++static void wd_timer_callback (unsigned long data)
++{
++	if (timer_is_running)
++		mod_timer (&wd_trigger_timer, jiffies + 5 * HZ);
++	mtx1_trigger_wd ();
++}
++
++static void start_wd_timer (void)
++{
++	if (!timer_is_running) {
++		struct timer_list *t = &wd_trigger_timer;
++		
++		init_timer (t);
++		t->function = wd_timer_callback;
++		t->data     = (unsigned long)0L;
++		t->expires  = jiffies + 5 * HZ;   // 5 seconds.
++		add_timer (t);
++		timer_is_running = TRUE;
++	}
++}
++
++
++
++static void stop_wd_timer (void)
++{
++	if (timer_is_running) {
++		del_timer(&wd_trigger_timer);
++		timer_is_running = FALSE;
++	}
++}
++
++
++//---------[ File Functions ]-----------------
++
++static int mtx1wd_open (struct inode *inode, struct file *file)
++{
++	if (MINOR(inode->i_rdev)!=WATCHDOG_MINOR) return -ENODEV;
++	MOD_INC_USE_COUNT;
++
++	// stop the timer, if it is running. It will not be
++	// started again, until the module is loaded again.
++	stop_wd_timer();
++
++	// sleep for 2 seconds, to ensure, that the wd is
++	// not triggered more often than every 2 seconds.
++	schedule_timeout (2 * HZ);
++
++	return 0;
++}
++
++
++static int mtx1wd_release (struct inode *inode, struct file *file) {
++	if (MINOR(inode->i_rdev)==WATCHDOG_MINOR) {
++	}
++	MOD_DEC_USE_COUNT;
++	return 0;
++}
++
++
++static ssize_t mtx1wd_write (struct file *file, const char *buf, size_t count, loff_t *ppos) {
++	if (ppos!=&file->f_pos)
++		return -ESPIPE;
++
++	if (count) {
++		mtx1_trigger_wd ();
++		return 1;
++	}
++	return 0;
++}
++
++
++
++static struct file_operations mtx1wd_fops = {
++	.owner = THIS_MODULE,
++	.llseek = NULL,
++	.read = NULL,
++	.write = mtx1wd_write,
++	.readdir = NULL,
++	.poll = NULL,
++	.ioctl = NULL,
++	.mmap = NULL,
++	.open = mtx1wd_open,
++	.flush = NULL,
++	.release = mtx1wd_release
++};
++
++
++static struct miscdevice mtx1wd_miscdev = {
++	WATCHDOG_MINOR,
++	"watchdog",
++	&mtx1wd_fops
++};
++
++
++
++//---------[ Module Functions ]-----------------
++
++
++void cleanup_module (void)
++{
++	// stop the timer, if it is running.
++	stop_wd_timer();
++
++	misc_deregister(&mtx1wd_miscdev);
++
++	mtx1_disable_wd ();
++}
++
++
++int __init init_mtx1_watchdog (void)
++{
++	printk("MTX-1 watchdog driver\n");
++
++	mtx1_enable_wd ();
++
++	//-- trigger it for the first time.
++	//-- We do not exactly know how long it has not been triggered.
++	mtx1_trigger_wd ();
++
++	misc_register (&mtx1wd_miscdev);
++
++	// start a timer, that calls mtx1_trigger_wd every 5 seconds.
++	start_wd_timer();
++
++	return 0;
++}
++
++__initcall(init_mtx1_watchdog);
++
++MODULE_AUTHOR("Michael Stickel");
++MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
++MODULE_LICENSE("GPL");
++EXPORT_NO_SYMBOLS;