finally move buildroot-ng to trunk

2006-10-13 22:51:49 +02:00
parent d58a09110c b3ce218b51
commit 60c1f0f64d
907 changed files with 495477 additions and 0 deletions
--- a/target/linux/ar7-2.4/patches/000-ar7_support.patch
+++ b/target/linux/ar7-2.4/patches/000-ar7_support.patch
--- a/target/linux/ar7-2.4/patches/001-flash_map.patch
+++ b/target/linux/ar7-2.4/patches/001-flash_map.patch
@@ -0,0 +1,307 @@
+diff -urN linux.old/drivers/mtd/maps/ar7-flash.c linux.dev/drivers/mtd/maps/ar7-flash.c
+--- linux.old/drivers/mtd/maps/ar7-flash.c	1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/mtd/maps/ar7-flash.c	2005-07-22 04:35:26.624453992 +0200
+@@ -0,0 +1,267 @@
+/*
+ * $Id$
+ *
+ * Normal mappings of chips in physical memory
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/config.h>
+#include <linux/mtd/partitions.h>
+#include <linux/squashfs_fs.h>
+
+#define WINDOW_ADDR CONFIG_MTD_AR7_START
+#define WINDOW_SIZE CONFIG_MTD_AR7_LEN
+#define BUSWIDTH CONFIG_MTD_AR7_BUSWIDTH
+
+#include <asm/mips-boards/prom.h>
+extern char *prom_getenv(char *name);
+
+static int create_mtd_partitions(void);
+static void __exit ar7_mtd_cleanup(void);
+	
+#define MAX_NUM_PARTITIONS 5
+static struct mtd_partition ar7_partinfo[MAX_NUM_PARTITIONS];
+
+static struct mtd_info *ar7_mtd_info;
+
+__u8 ar7_read8(struct map_info *map, unsigned long ofs)
+{
+	return __raw_readb(map->map_priv_1 + ofs);
+}
+
+__u16 ar7_read16(struct map_info *map, unsigned long ofs)
+{
+	return __raw_readw(map->map_priv_1 + ofs);
+}
+
+__u32 ar7_read32(struct map_info *map, unsigned long ofs)
+{
+	return __raw_readl(map->map_priv_1 + ofs);
+}
+
+void ar7_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+{
+	memcpy_fromio(to, map->map_priv_1 + from, len);
+}
+
+void ar7_write8(struct map_info *map, __u8 d, unsigned long adr)
+{
+	__raw_writeb(d, map->map_priv_1 + adr);
+	mb();
+}
+
+void ar7_write16(struct map_info *map, __u16 d, unsigned long adr)
+{
+	__raw_writew(d, map->map_priv_1 + adr);
+	mb();
+}
+
+void ar7_write32(struct map_info *map, __u32 d, unsigned long adr)
+{
+	__raw_writel(d, map->map_priv_1 + adr);
+	mb();
+}
+
+void ar7_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+{
+	memcpy_toio(map->map_priv_1 + to, from, len);
+}
+
+struct map_info ar7_map = {
+	name: "Physically mapped flash",
+	size: WINDOW_SIZE,
+	buswidth: BUSWIDTH,
+	read8: ar7_read8,
+	read16: ar7_read16,
+	read32: ar7_read32,
+	copy_from: ar7_copy_from,
+	write8: ar7_write8,
+	write16: ar7_write16,
+	write32: ar7_write32,
+	copy_to: ar7_copy_to
+};
+
+int __init ar7_mtd_init(void)
+{
+	int partitions;
+	
+       	printk(KERN_NOTICE "ar7 flash device: 0x%lx at 0x%lx.\n", (unsigned long)WINDOW_SIZE, (unsigned long)WINDOW_ADDR);
+	ar7_map.map_priv_1 = (unsigned long)ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
+
+	if (!ar7_map.map_priv_1) {
+		printk("Failed to ioremap\n");
+		return -EIO;
+	}
+	
+	ar7_mtd_info = do_map_probe("cfi_probe", &ar7_map);
+	if (!ar7_mtd_info)
+	{
+		ar7_mtd_cleanup();
+		return -ENXIO;
+	}
+	
+	ar7_mtd_info->module = THIS_MODULE;
+
+	if (!(partitions = create_mtd_partitions()))
+		add_mtd_device(ar7_mtd_info);
+	else		
+		add_mtd_partitions(ar7_mtd_info, ar7_partinfo, partitions);
+
+	return 0;
+}
+
+static char *strdup(char *str)
+{
+	int n = strlen(str)+1;
+	char *s = kmalloc(n, GFP_KERNEL);
+	if (!s) return NULL;
+	return strcpy(s, str);
+}
+
+
+static int create_mtd_partitions(void)
+{
+	unsigned int offset;
+	unsigned int size;
+	unsigned int found = 0;
+	unsigned int p = 0;
+	unsigned char *flash_base;
+	unsigned char *flash_end;
+	char *env_ptr;
+	char *base_ptr;
+	char *end_ptr;
+	unsigned int adam2_size = 0x20000;
+	unsigned int config_offset = WINDOW_SIZE;
+	unsigned int rootfs_start = 0xe0000;
+
+	printk("Parsing ADAM2 partition map...\n");
+	
+	do {
+		char	env_name[20];
+
+		/* get base and end addresses of flash file system from environment */
+		sprintf(env_name, "mtd%1u", p);
+		printk("Looking for mtd device :%s:\n", env_name);
+
+		env_ptr = prom_getenv(env_name);
+		if(env_ptr == NULL) {
+			/* No more partitions to find */
+			break;
+		}
+
+		/* Extract the start and stop addresses of the partition */
+		base_ptr = strtok(env_ptr, ",");
+		end_ptr = strtok(NULL, ",");
+		if ((base_ptr == NULL) || (end_ptr == NULL)) {	
+			printk("ADAM2 partition error: Invalid %s start,end.\n", env_name);
+			break;
+		}
+
+		flash_base = (unsigned char*) simple_strtol(base_ptr, NULL, 0);
+		flash_end = (unsigned char*) simple_strtol(end_ptr, NULL, 0);
+		if((!flash_base) || (!flash_end)) {
+			printk("ADAM2 partition error: Invalid %s start,end.\n", env_name);
+			break;
+		}
+
+		offset = virt_to_bus(flash_base) - WINDOW_ADDR;
+		size = flash_end - flash_base;
+		printk("Found a %s image (0x%x), with size (0x%x).\n",env_name, offset, size);
+
+		
+		if (offset == 0) {
+			printk("Assuming adam2 size of 0x%x\n", size);
+			adam2_size = size; 			// boot loader
+		} else if (offset > 0x120000) {
+			if (config_offset > offset)
+				config_offset = offset;		// reserved at the end of the flash chip
+		} else if (offset > 0x30000) {
+			printk("Assuming default rootfs offset of 0x%x\n", offset);
+			rootfs_start = offset;			// probably root fs
+		}
+		
+		p++;
+	} while (p < MAX_NUM_PARTITIONS);
+	
+	p = 0;
+	
+	ar7_partinfo[p].name = strdup("adam2");
+	ar7_partinfo[p].offset = 0;
+	ar7_partinfo[p].size = adam2_size;
+	ar7_partinfo[p++].mask_flags = 0;
+
+	ar7_partinfo[p].name = strdup("linux");
+	ar7_partinfo[p].offset = adam2_size;
+	ar7_partinfo[p].size = config_offset - adam2_size;
+	ar7_partinfo[p++].mask_flags = 0;
+
+	if (ar7_read32(&ar7_map, adam2_size) == 0xfeedfa42) {
+		rootfs_start = ar7_read32(&ar7_map, adam2_size + 4) + adam2_size + 28;
+		printk("Setting new rootfs offset to %08x\n", rootfs_start);
+	}
+	
+	ar7_partinfo[p].name = strdup("rootfs");
+	ar7_partinfo[p].offset = rootfs_start;
+	ar7_partinfo[p].size = config_offset - rootfs_start;
+	
+	ar7_partinfo[p++].mask_flags = 0;
+
+	ar7_partinfo[p].name = strdup("config");
+	ar7_partinfo[p].offset = config_offset;
+	ar7_partinfo[p].size = WINDOW_SIZE - config_offset;
+	ar7_partinfo[p++].mask_flags = 0;
+
+	if (ar7_read32(&ar7_map, rootfs_start) == SQUASHFS_MAGIC) {
+		int newsize, newoffset;
+		struct squashfs_super_block sb;
+
+		ar7_copy_from(&ar7_map, &sb, rootfs_start, sizeof(sb));
+		printk("Squashfs detected (size = 0x%08x)\n", sb.bytes_used);
+		
+		newoffset = rootfs_start + sb.bytes_used;
+
+		if ((newoffset % ar7_mtd_info->erasesize) > 0)
+			newoffset += ar7_mtd_info->erasesize - (newoffset % ar7_mtd_info->erasesize);
+		
+		ar7_partinfo[p - 2].size = newoffset - rootfs_start;
+		
+		ar7_partinfo[p].name = strdup("OpenWrt");
+		ar7_partinfo[p].offset = newoffset;
+		ar7_partinfo[p].size = config_offset - newoffset;
+		ar7_partinfo[p++].mask_flags = 0;
+	} else {
+		printk("Unknown filesystem. Moving rootfs partition to next erase block");
+		if ((rootfs_start % ar7_mtd_info->erasesize) > 0) {
+			ar7_partinfo[p - 2].offset += ar7_mtd_info->erasesize - (rootfs_start % ar7_mtd_info->erasesize);
+			ar7_partinfo[p - 2].size -= ar7_mtd_info->erasesize - (rootfs_start % ar7_mtd_info->erasesize);
+		}
+	}
+
+	return p;
+}
+
+static void __exit ar7_mtd_cleanup(void)
+{
+	if (ar7_mtd_info) {
+		del_mtd_partitions(ar7_mtd_info);
+		del_mtd_device(ar7_mtd_info);
+		map_destroy(ar7_mtd_info);
+	}
+
+	if (ar7_map.map_priv_1) {
+		iounmap((void *)ar7_map.map_priv_1);
+		ar7_map.map_priv_1 = 0;
+	}
+}
+
+module_init(ar7_mtd_init);
+module_exit(ar7_mtd_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Felix Fietkau");
+MODULE_DESCRIPTION("AR7 CFI map driver");
+diff -urN linux.old/drivers/mtd/maps/Config.in linux.dev/drivers/mtd/maps/Config.in
+--- linux.old/drivers/mtd/maps/Config.in	2005-07-21 05:36:32.414242296 +0200
+++ linux.dev/drivers/mtd/maps/Config.in	2005-07-21 06:29:04.067118232 +0200
+@@ -48,6 +48,21 @@
+ fi
+ 
+ if [ "$CONFIG_MIPS" = "y" ]; then
+    if [ "$CONFIG_AR7" = "y" ]; then
+      dep_tristate '  Flash chip mapping on Texas Instruments AR7' CONFIG_MTD_AR7 $CONFIG_MTD_CFI $CONFIG_MTD_PARTITIONS
+      dep_bool     '    Use defaults for Texas Instruments AR7' CONFIG_MTD_AR7_DEFAULTS $CONFIG_MTD_AR7
+      if [ "$CONFIG_MTD_AR7" = "y" -o "$CONFIG_MTD_AR7" = "m" ]; then
+         if [ "$CONFIG_MTD_AR7_DEFAULTS" = "y" ]; then
+            define_hex CONFIG_MTD_AR7_START 0x10000000
+            define_hex CONFIG_MTD_AR7_LEN 0x400000
+            define_int CONFIG_MTD_AR7_BUSWIDTH 2
+         else
+            hex '      Physical start address of flash mapping' CONFIG_MTD_AR7_START 0x10000000
+            hex '      Physical length of flash mapping' CONFIG_MTD_AR7_LEN 0x400000
+            int '      Bus width in octets' CONFIG_MTD_AR7_BUSWIDTH 2
+         fi
+      fi
+   fi
+    dep_tristate '  Pb1000 MTD support' CONFIG_MTD_PB1000 $CONFIG_MIPS_PB1000
+    dep_tristate '  Pb1500 MTD support' CONFIG_MTD_PB1500 $CONFIG_MIPS_PB1500
+    dep_tristate '  Pb1100 MTD support' CONFIG_MTD_PB1100 $CONFIG_MIPS_PB1100
+diff -urN linux.old/drivers/mtd/maps/Makefile linux.dev/drivers/mtd/maps/Makefile
+--- linux.old/drivers/mtd/maps/Makefile	2005-07-21 05:36:32.414242296 +0200
+++ linux.dev/drivers/mtd/maps/Makefile	2005-07-21 06:56:33.265401984 +0200
+@@ -10,6 +10,7 @@
+ endif
+ 
+ # Chip mappings
+obj-$(CONFIG_MTD_AR7)		+= ar7-flash.o
+ obj-$(CONFIG_MTD_CDB89712)	+= cdb89712.o
+ obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o
+ obj-$(CONFIG_MTD_CFI_FLAGADM)	+= cfi_flagadm.o
--- a/target/linux/ar7-2.4/patches/002-led_driver.patch
+++ b/target/linux/ar7-2.4/patches/002-led_driver.patch
--- a/target/linux/ar7-2.4/patches/003-net_driver_cpmac.patch
+++ b/target/linux/ar7-2.4/patches/003-net_driver_cpmac.patch
--- a/target/linux/ar7-2.4/patches/004-atm_driver.patch
+++ b/target/linux/ar7-2.4/patches/004-atm_driver.patch
--- a/target/linux/ar7-2.4/patches/005-wdt_driver.patch
+++ b/target/linux/ar7-2.4/patches/005-wdt_driver.patch
@@ -0,0 +1,392 @@
+diff -ruN linux-2.4.30-patch006/drivers/char/ar7_wdt.c linux-2.4.30-patch007/drivers/char/ar7_wdt.c
+--- linux-2.4.30-patch006/drivers/char/ar7_wdt.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.30-patch007/drivers/char/ar7_wdt.c	2005-10-27 09:39:40.000000000 +0200
+@@ -0,0 +1,335 @@
+/* linux/drivers/char/ar7_wdt.c 
+
+   TI AR7 watch dog timer support
+
+   Copyright (c) 2005 Enrik Berkhan <Enrik.Berkhan@akk.org>
+
+   Som code taken from:
+   National Semiconductor SCx200 Watchdog support
+   Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
+
+   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.
+
+   The author(s) of this software shall not be held liable for damages
+   of any nature resulting due to the use of this software. This
+   software is provided AS-IS with no warranties. */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/ioport.h>
+
+#include <asm/uaccess.h>
+
+#include <asm/ar7/avalanche_misc.h>
+#include <asm/ar7/sangam.h>
+
+#define NAME "ar7_wdt"
+#define LONGNAME "TI AR7 Watchdog Timer"
+
+MODULE_AUTHOR("Enrik Berkhan <Enrik.Berkhan@akk.org>");
+MODULE_DESCRIPTION(LONGNAME);
+MODULE_LICENSE("GPL");
+
+#ifndef CONFIG_WATCHDOG_NOWAYOUT
+#define CONFIG_WATCHDOG_NOWAYOUT 0
+#endif
+
+static int margin = 60;
+MODULE_PARM(margin, "i");
+MODULE_PARM_DESC(margin, "Watchdog margin in seconds (1 - ~68)");
+
+static int nowayout = CONFIG_WATCHDOG_NOWAYOUT;
+MODULE_PARM(nowayout, "i");
+MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
+
+typedef struct {
+  uint32_t kick_lock;
+  uint32_t kick;
+  uint32_t change_lock;
+  uint32_t change ;
+  uint32_t disable_lock;
+  uint32_t disable;
+  uint32_t prescale_lock;
+  uint32_t prescale;
+} ar7_wdt_t;
+
+volatile ar7_wdt_t *ar7_wdt = (ar7_wdt_t *)AVALANCHE_WATCHDOG_TIMER_BASE;
+
+static struct semaphore open_semaphore;
+static unsigned expect_close;
+
+/* XXX correct? assumed to be sysfreq/2. get this dynamically ... */
+#define vbus_freq 62500000
+
+/* XXX currently fixed, allows max margin ~68.72 secs */
+#define prescale_value 0xFFFF
+
+static void ar7_wdt_kick(uint32_t value)
+{
+  ar7_wdt->kick_lock = 0x5555;
+  if ((ar7_wdt->kick_lock & 3) == 1) {
+    ar7_wdt->kick_lock = 0xAAAA;
+    if ((ar7_wdt->kick_lock & 3) == 3) {
+      ar7_wdt->kick = value;
+      return;
+    }
+  }
+  printk(KERN_ERR NAME "failed to unlock WDT kick reg\n");
+}
+
+static void ar7_wdt_prescale(uint32_t value)
+{
+  ar7_wdt->prescale_lock = 0x5A5A;
+  if ((ar7_wdt->prescale_lock & 3) == 1) {
+    ar7_wdt->prescale_lock = 0xA5A5;
+    if ((ar7_wdt->prescale_lock & 3) == 3) {
+      ar7_wdt->prescale = value;
+      return;
+    }
+  }
+  printk(KERN_ERR NAME "failed to unlock WDT prescale reg\n");
+}
+
+static void ar7_wdt_change(uint32_t value)
+{
+  ar7_wdt->change_lock = 0x6666;
+  if ((ar7_wdt->change_lock & 3) == 1) {
+    ar7_wdt->change_lock = 0xBBBB;
+    if ((ar7_wdt->change_lock & 3) == 3) {
+      ar7_wdt->change = value;
+      return;
+    }
+  }
+  printk(KERN_ERR NAME "failed to unlock WDT change reg\n");
+}
+
+static void ar7_wdt_disable(uint32_t value)
+{
+  ar7_wdt->disable_lock = 0x7777;
+  if ((ar7_wdt->disable_lock & 3) == 1) {
+    ar7_wdt->disable_lock = 0xCCCC;
+    if ((ar7_wdt->disable_lock & 3) == 2) {
+      ar7_wdt->disable_lock = 0xDDDD; 
+      if ((ar7_wdt->disable_lock & 3) == 3) {
+	ar7_wdt->disable = value;
+	return;
+      }
+    }
+  }
+  printk(KERN_ERR NAME "failed to unlock WDT disable reg\n");
+  return;
+}
+
+static void ar7_wdt_update_margin(int new_margin)
+{
+        uint32_t change;
+
+	change = new_margin * (vbus_freq / prescale_value);
+	if (change < 1) change = 1;
+	if (change > 0xFFFF) change = 0xFFFF;
+	ar7_wdt_change(change);
+	margin = change * prescale_value / vbus_freq;
+	printk(KERN_INFO NAME
+	       ": timer margin %d seconds (prescale %d, change %d, freq %d)\n",
+	       margin, prescale_value, change, vbus_freq);
+}
+
+static void ar7_wdt_enable_wdt(void)
+{
+	printk(KERN_DEBUG NAME ": enabling watchdog timer\n");
+	ar7_wdt_disable(1);
+	ar7_wdt_kick(1);
+}
+
+static void ar7_wdt_disable_wdt(void)
+{
+	printk(KERN_DEBUG NAME ": disabling watchdog timer\n");
+	ar7_wdt_disable(0);
+}
+
+static int ar7_wdt_open(struct inode *inode, struct file *file)
+{
+        /* only allow one at a time */
+        if (down_trylock(&open_semaphore))
+                return -EBUSY;
+	ar7_wdt_enable_wdt();
+	expect_close = 0;
+
+	return 0;
+}
+
+static int ar7_wdt_release(struct inode *inode, struct file *file)
+{
+	if (!expect_close) {
+		printk(KERN_WARNING NAME ": watchdog device closed unexpectedly, will not disable the watchdog timer\n");
+	} else if (!nowayout) {
+		ar7_wdt_disable_wdt();
+	}
+        up(&open_semaphore);
+
+	return 0;
+}
+
+static int ar7_wdt_notify_sys(struct notifier_block *this, 
+				      unsigned long code, void *unused)
+{
+        if (code == SYS_HALT || code == SYS_POWER_OFF)
+		if (!nowayout)
+			ar7_wdt_disable_wdt();
+
+        return NOTIFY_DONE;
+}
+
+static struct notifier_block ar7_wdt_notifier =
+{
+        .notifier_call = ar7_wdt_notify_sys
+};
+
+static ssize_t ar7_wdt_write(struct file *file, const char *data, 
+				     size_t len, loff_t *ppos)
+{
+	if (ppos != &file->f_pos)
+		return -ESPIPE;
+
+	/* check for a magic close character */
+	if (len) 
+	{
+		size_t i;
+
+		ar7_wdt_kick(1);
+
+		expect_close = 0;
+		for (i = 0; i < len; ++i) {
+			char c;
+			if (get_user(c, data+i))
+				return -EFAULT;
+			if (c == 'V')
+				expect_close = 1;
+		}
+
+	}
+	return len;
+}
+
+static int ar7_wdt_ioctl(struct inode *inode, struct file *file,
+	unsigned int cmd, unsigned long arg)
+{
+	static struct watchdog_info ident = {
+		.identity = LONGNAME,
+		.firmware_version = 1, 
+		.options = (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING),
+	};
+	int new_margin;
+	
+	switch (cmd) {
+	default:
+		return -ENOTTY;
+	case WDIOC_GETSUPPORT:
+		if(copy_to_user((struct watchdog_info *)arg, &ident, 
+				sizeof(ident)))
+			return -EFAULT;
+		return 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		if (put_user(0, (int *)arg))
+			return -EFAULT;
+		return 0;
+	case WDIOC_KEEPALIVE:
+		ar7_wdt_kick(1);
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, (int *)arg))
+			return -EFAULT;
+		if (new_margin < 1)
+			return -EINVAL;
+
+		ar7_wdt_update_margin(new_margin);
+		ar7_wdt_kick(1);
+
+	case WDIOC_GETTIMEOUT:
+		if (put_user(margin, (int *)arg))
+			return -EFAULT;
+		return 0;
+	}
+}
+
+static struct file_operations ar7_wdt_fops = {
+	.owner	 = THIS_MODULE,
+	.write   = ar7_wdt_write,
+	.ioctl   = ar7_wdt_ioctl,
+	.open    = ar7_wdt_open,
+	.release = ar7_wdt_release,
+};
+
+static struct miscdevice ar7_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name  = "watchdog",
+	.fops  = &ar7_wdt_fops,
+};
+
+static __initdata char *last_initiator[] = {
+  [HARDWARE_RESET] = "hardware reset",
+  [SOFTWARE_RESET0] = "SW0 software reset",
+  [SOFTWARE_RESET1] = "SW1 software reset",
+  [WATCHDOG_RESET] = "watchdog"
+};
+
+static int __init ar7_wdt_init(void)
+{
+	int r;
+
+	if (!request_mem_region(AVALANCHE_WATCHDOG_TIMER_BASE,
+				sizeof(ar7_wdt_t), LONGNAME)) {
+		printk(KERN_WARNING NAME ": watchdog I/O region busy\n");
+		return -EBUSY;
+	}
+
+	printk(KERN_INFO NAME ": last system reset initiated by %s\n",
+	       last_initiator[avalanche_get_sys_last_reset_status()]);
+
+
+	ar7_wdt_disable_wdt();
+	ar7_wdt_prescale(prescale_value);
+	ar7_wdt_update_margin(margin);
+
+	sema_init(&open_semaphore, 1);
+
+	r = misc_register(&ar7_wdt_miscdev);
+	if (r) {
+                printk(KERN_ERR NAME ": unable to register misc device\n");
+		release_mem_region(AVALANCHE_WATCHDOG_TIMER_BASE,
+				   sizeof(ar7_wdt_t));
+		return r;
+	}
+
+	r = register_reboot_notifier(&ar7_wdt_notifier);
+        if (r) {
+                printk(KERN_ERR NAME ": unable to register reboot notifier\n");
+		misc_deregister(&ar7_wdt_miscdev);
+		release_mem_region(AVALANCHE_WATCHDOG_TIMER_BASE,
+				   sizeof(ar7_wdt_t));
+                return r;
+        }
+
+	return 0;
+}
+
+static void __exit ar7_wdt_cleanup(void)
+{
+        unregister_reboot_notifier(&ar7_wdt_notifier);
+	misc_deregister(&ar7_wdt_miscdev);
+	release_mem_region(AVALANCHE_WATCHDOG_TIMER_BASE, sizeof(ar7_wdt_t));
+}
+
+module_init(ar7_wdt_init);
+module_exit(ar7_wdt_cleanup);
+diff -ruN linux-2.4.30-patch006/drivers/char/Config.in linux-2.4.30-patch007/drivers/char/Config.in
+--- linux-2.4.30-patch006/drivers/char/Config.in	2005-10-27 11:25:29.000000000 +0200
+++ linux-2.4.30-patch007/drivers/char/Config.in	2005-10-27 11:17:32.000000000 +0200
+@@ -251,6 +251,9 @@
+ bool 'Watchdog Timer Support'	CONFIG_WATCHDOG
+ if [ "$CONFIG_WATCHDOG" != "n" ]; then
+    bool '  Disable watchdog shutdown on close' CONFIG_WATCHDOG_NOWAYOUT
+   if [ "$CONFIG_AR7" = "y" ] ; then
+     tristate '  TI AR7 Watchdog Timer' CONFIG_AR7_WDT
+   else
+    tristate '  Acquire SBC Watchdog Timer' CONFIG_ACQUIRE_WDT
+    tristate '  Advantech SBC Watchdog Timer' CONFIG_ADVANTECH_WDT
+    tristate '  ALi M7101 PMU on ALi 1535D+ Watchdog Timer' CONFIG_ALIM1535_WDT
+@@ -271,7 +274,6 @@
+    tristate '  SBC-60XX Watchdog Timer' CONFIG_60XX_WDT
+    dep_tristate '  SC1200 Watchdog Timer (EXPERIMENTAL)' CONFIG_SC1200_WDT $CONFIG_EXPERIMENTAL
+    tristate '  NatSemi SCx200 Watchdog' CONFIG_SCx200_WDT
+-   tristate '  Software Watchdog' CONFIG_SOFT_WATCHDOG
+    tristate '  W83877F (EMACS) Watchdog Timer' CONFIG_W83877F_WDT
+    tristate '  WDT Watchdog timer' CONFIG_WDT
+    tristate '  WDT PCI Watchdog timer' CONFIG_WDTPCI
+@@ -282,6 +284,8 @@
+       fi
+    fi
+    tristate '  ZF MachZ Watchdog' CONFIG_MACHZ_WDT
+   fi
+   tristate '  Software Watchdog' CONFIG_SOFT_WATCHDOG
+    if [ "$CONFIG_SGI_IP22" = "y" ]; then
+       dep_tristate '  Indy/I2 Hardware Watchdog' CONFIG_INDYDOG $CONFIG_SGI_IP22
+    fi
+diff -ruN linux-2.4.30-patch006/drivers/char/Makefile linux-2.4.30-patch007/drivers/char/Makefile
+--- linux-2.4.30-patch006/drivers/char/Makefile	2005-10-27 11:19:38.000000000 +0200
+++ linux-2.4.30-patch007/drivers/char/Makefile	2005-10-27 09:39:40.000000000 +0200
+@@ -342,6 +342,7 @@
+ obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
+ obj-$(CONFIG_INDYDOG) += indydog.o
+ obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
+obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
+ 
+ subdir-$(CONFIG_MWAVE) += mwave
+ ifeq ($(CONFIG_MWAVE),y)
+diff -ruN linux-2.4.30-patch006/include/asm-mips/ar7/sangam.h linux-2.4.30-patch007/include/asm-mips/ar7/sangam.h
+--- linux-2.4.30-patch006/include/asm-mips/ar7/sangam.h	2005-10-27 11:25:51.000000000 +0200
+++ linux-2.4.30-patch007/include/asm-mips/ar7/sangam.h	2005-10-27 11:13:37.000000000 +0200
+@@ -152,7 +152,7 @@
+ #define AVALANCHE_EMIF_SDRAM_CFG      (AVALANCHE_EMIF_CONTROL_BASE + 0x8)
+ #define AVALANCHE_RST_CTRL_PRCR       (KSEG1ADDR(0x08611600))
+ #define AVALANCHE_RST_CTRL_SWRCR      (KSEG1ADDR(0x08611604))
+-#define AVALANCHE_RST_CTRL_RSR        (KSEG1ADDR(0x08611600))
+#define AVALANCHE_RST_CTRL_RSR        (KSEG1ADDR(0x08611608))
+ 
+ #define AVALANCHE_POWER_CTRL_PDCR     (KSEG1ADDR(0x08610A00))
+ #define AVALANCHE_WAKEUP_CTRL_WKCR    (KSEG1ADDR(0x08610A0C))
--- a/target/linux/ar7-2.4/patches/006-sched_use_tsc.patch
+++ b/target/linux/ar7-2.4/patches/006-sched_use_tsc.patch
@@ -0,0 +1,84 @@
+diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c
+--- linux.old/arch/mips/kernel/time.c	2005-11-14 11:06:38.661262000 +0100
+++ linux.dev/arch/mips/kernel/time.c	2005-11-15 20:02:50.059676750 +0100
+@@ -151,6 +151,27 @@
+ unsigned int (*mips_hpt_read)(void);
+ void (*mips_hpt_init)(unsigned int);
+ 
+extern __u32 get_htscl(void)
+{
+	return timerhi;
+}
+
+static __u64 tscll_last = 0;
+
+extern __u64 get_tscll(void)
+{
+	__u64 h = (__u64) timerhi;
+	__u32 c = read_c0_count();
+
+	h <<= 32;
+	h += c;
+
+	while (h < tscll_last)
+		h += (((__u64) 1) << 32);
+
+	tscll_last = h;
+	return h;	
+}
+ 
+ /*
+  * timeofday services, for syscalls.
+@@ -761,3 +782,5 @@
+ EXPORT_SYMBOL(to_tm);
+ EXPORT_SYMBOL(rtc_set_time);
+ EXPORT_SYMBOL(rtc_get_time);
+EXPORT_SYMBOL(get_htscl);
+EXPORT_SYMBOL(get_tscll);
+diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h
+--- linux.old/include/asm-mips/timex.h	2005-11-14 11:06:38.685263500 +0100
+++ linux.dev/include/asm-mips/timex.h	2005-11-14 11:02:21.069163500 +0100
+@@ -31,6 +31,19 @@
+ 	return read_c0_count();
+ }
+ 
+extern __u32 get_htscl(void);
+extern __u64 get_tscll(void);
+
+#define rdtsc(low, high) \
+		high = get_htscl(); \
+		low = read_c0_count();
+
+#define rdtscl(low) \
+		low = read_c0_count();
+
+#define rdtscll(val) \
+		val = get_tscll();
+
+ #define vxtime_lock()		do {} while (0)
+ #define vxtime_unlock()		do {} while (0)
+ 
+diff -urN linux.old/include/net/pkt_sched.h linux.dev/include/net/pkt_sched.h
+--- linux.old/include/net/pkt_sched.h	2005-11-14 11:06:38.709265000 +0100
+++ linux.dev/include/net/pkt_sched.h	2005-11-14 11:02:21.069163500 +0100
+@@ -5,7 +5,11 @@
+ #define PSCHED_JIFFIES 		2
+ #define PSCHED_CPU 		3
+ 
+#ifdef __mips__
+#define PSCHED_CLOCK_SOURCE	PSCHED_CPU
+#else
+ #define PSCHED_CLOCK_SOURCE	PSCHED_JIFFIES
+#endif
+ 
+ #include <linux/config.h>
+ #include <linux/types.h>
+@@ -271,7 +275,7 @@
+ #define PSCHED_US2JIFFIE(delay) (((delay)+psched_clock_per_hz-1)/psched_clock_per_hz)
+ #define PSCHED_JIFFIE2US(delay) ((delay)*psched_clock_per_hz)
+ 
+-#ifdef CONFIG_X86_TSC
+#if defined(CONFIG_X86_TSC) || defined(__mips__)
+ 
+ #define PSCHED_GET_TIME(stamp) \
+ ({ u64 __cur; \