au1000 now runs .22, mtx-1 watchdog is mainline and i2c patch is planned for rewriting

SVN-Revision: 7900

4 files changed, 1 insertions, 765 deletions

diff --git a/target/linux/au1000-2.6/Makefile b/target/linux/au1000-2.6/Makefile
index 0b04a4f..1c1674c 100644
--- a/target/linux/au1000-2.6/Makefile
+++ b/target/linux/au1000-2.6/Makefile
@@ -11,7 +11,7 @@ BOARD:=au1000
 BOARDNAME:=AMD Alchemy AU1x00
 FEATURES:=jffs2 usb pci
 
-LINUX_VERSION:=2.6.21.5
+LINUX_VERSION:=2.6.22
 
 define Target/Description
 	Build firmware for AMD Alchemy 1500 boards
diff --git a/target/linux/au1000-2.6/files/drivers/char/watchdog/mtx-1_watchdog.c b/target/linux/au1000-2.6/files/drivers/char/watchdog/mtx-1_watchdog.c
deleted file mode 100644
index ccd631e..0000000
--- a/target/linux/au1000-2.6/files/drivers/char/watchdog/mtx-1_watchdog.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- *      Driver for the MTX-1 Watchdog.
- *
- *      (c) Copyright 2005 4G Systems <info@4g-systems.biz>, All Rights Reserved.
- *                              http://www.4g-systems.biz
- *
- * 	(C) Copyright 2007 OpenWrt.org, 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.
- *
- *      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
- *
- *      Release 0.02.
- *	Author: Florian Fainelli florian@openwrt.org
- *		use the Linux watchdog API
- *
- *      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/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/timer.h>
-#include <linux/completion.h>
-#include <linux/jiffies.h>
-#include <linux/watchdog.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include <asm/mach-au1x00/au1000.h>
-
-#define MTX1_WDT_INTERVAL	(5 * HZ)
-
-static int ticks = 100 * HZ;
-
-static struct {
-	struct completion stop;
-	volatile int running;
-	struct timer_list timer;
-	volatile int queue;
-	int default_ticks;
-	unsigned long inuse;
-} mtx1_wdt_device;
-
-static void mtx1_wdt_trigger(unsigned long unused)
-{
-	u32 tmp;
-
-	if (mtx1_wdt_device.running)
-		ticks--;
-	/*
-	 * toggle GPIO2_15
-	 */
-	tmp = au_readl(GPIO2_DIR);
-	tmp = (tmp & ~(1<<15)) | ((~tmp) & (1<<15));
-	au_writel (tmp, GPIO2_DIR);
-
-	if (mtx1_wdt_device.queue && ticks)
-		mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL);
-	else {
-		complete(&mtx1_wdt_device.stop);
-	}
-}
-
-static void mtx1_wdt_reset(void)
-{
-	ticks = mtx1_wdt_device.default_ticks;
-}
-
-
-static void mtx1_wdt_start(void)
-{
-	if (!mtx1_wdt_device.queue) {
-		mtx1_wdt_device.queue = 1;
-		au_writel (au_readl(GPIO2_DIR) | (u32)(1<<15), GPIO2_DIR);
-		mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL);
-	}
-	mtx1_wdt_device.running++;
-}
-
-static int mtx1_wdt_stop(void)
-{
-	if (mtx1_wdt_device.queue) {
-		mtx1_wdt_device.queue = 0;
-		au_writel (au_readl(GPIO2_DIR) & ~((u32)(1<<15)), GPIO2_DIR);
-	}
-
-	ticks = mtx1_wdt_device.default_ticks;
-
-	return 0;
-}
-
-/* Filesystem functions */
-
-static char restart_after_close;
-
-static int mtx1_wdt_open(struct inode *inode, struct file *file)
-{
-	if (test_and_set_bit(0, &mtx1_wdt_device.inuse))
-		return -EBUSY;
-
-	return nonseekable_open(inode, file);
-}
-
-
-static int mtx1_wdt_release(struct inode *inode, struct file *file)
-{
-	clear_bit(0, &mtx1_wdt_device.inuse);
-	return 0;
-}
-
-static int mtx1_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
-        void __user *argp = (void __user *)arg;
-        unsigned int value;
-        static struct watchdog_info ident =
-        {
-                .options = WDIOF_CARDRESET,
-                .identity = "MTX-1 WDT",
-        };
-
-        switch(cmd) {
-                case WDIOC_KEEPALIVE:
-                        mtx1_wdt_reset();
-                        break;
-                case WDIOC_GETSTATUS:
-                        if ( copy_to_user(argp, &value, sizeof(int)) )
-                                return -EFAULT;
-                        break;
-                case WDIOC_GETSUPPORT:
-                        if ( copy_to_user(argp, &ident, sizeof(ident)) )
-                                return -EFAULT;
-                        break;
-                case WDIOC_SETOPTIONS:
-                        if ( copy_from_user(&value, argp, sizeof(int)) )
-                                return -EFAULT;
-                        switch(value) {
-                                case WDIOS_ENABLECARD:
-                                        mtx1_wdt_start();
-                                        break;
-                                case WDIOS_DISABLECARD:
-                                        return mtx1_wdt_stop();
-                                default:
-                                        return -EINVAL;
-                        }
-                        break;
-                default:
-                        return -ENOTTY;
-        }
-        return 0;
-}
-
-
-static ssize_t mtx1_wdt_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
-{
-	if (!count)
-		return -EIO;
-
-	mtx1_wdt_reset();
-
-	if (count > 0) {
-               char buffer[10];
-               int n = (count>9)?9:count;
-
-               if (copy_from_user (&buffer, buf, n))
-                       return -EFAULT;
-               buffer[n]=0;
-
-               if (count >= 4 && strncmp("auto", buffer, 4)==0)
-                       restart_after_close = 1;
-
-               else if (count >= 6 && strncmp("manual", buffer, 6)==0)
-                       restart_after_close = 0;
-
-               return n;
-	}
-	return count;
-}
-
-#if 0
-static ssize_t mtx1_wdt_read (struct file *file, char *buf, size_t count, loff_t *ppos)
-{
-       char * state = restart_after_close ? "auto\n" : "manual\n";
-       int n = strlen(state)+1;
-
-       if (file->f_pos >= n)
-               return 0;
-
-       if (count < n)
-               return -EINVAL;
-
-       if(copy_to_user(buf, state, n))
-               return -EFAULT;
-
-       file->f_pos += n;
-
-       return n;
-}
-#endif
-
-static struct file_operations mtx1_wdt_fops = {
-	.owner 		= THIS_MODULE,
-	.llseek		= no_llseek,
-	.ioctl		= mtx1_wdt_ioctl,
-	.open 		= mtx1_wdt_open,
-	.write 		= mtx1_wdt_write,
-	//.read 		= mtx1_wdt_read,
-	.release 	= mtx1_wdt_release
-};
-
-
-static struct miscdevice mtx1_wdt_misc = {
-	.minor 	= WATCHDOG_MINOR,
-	.name 	= "watchdog",
-	.fops 	= &mtx1_wdt_fops
-};
-
-
-static int __init mtx1_wdt_init(void)
-{
-	int ret;
-
-	if ((ret = misc_register(&mtx1_wdt_misc)) < 0) {
-		printk(KERN_ERR " mtx-1_wdt : failed to register\n");
-		return ret;
-	}
-
-	init_completion(&mtx1_wdt_device.stop);
-	mtx1_wdt_device.queue = 0;
-
-	clear_bit(0, &mtx1_wdt_device.inuse);
-	
-	setup_timer(&mtx1_wdt_device.timer, mtx1_wdt_trigger, 0L);
-
-	mtx1_wdt_device.default_ticks = ticks;
-
-	mtx1_wdt_start();
-	
-	printk(KERN_INFO "MTX-1 Watchdog driver\n");
-	
-	return 0;
-}
-
-static void __exit mtx1_wdt_exit(void)
-{
-	if (mtx1_wdt_device.queue) {
-		mtx1_wdt_device.queue = 0;
-		wait_for_completion(&mtx1_wdt_device.stop);
-	}
-        misc_deregister(&mtx1_wdt_misc);
-}
-
-module_init(mtx1_wdt_init);
-module_exit(mtx1_wdt_exit);
-
-MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
-MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
-MODULE_LICENSE("GPL");
diff --git a/target/linux/au1000-2.6/patches/004-mtx1_watchdog.patch b/target/linux/au1000-2.6/patches/004-mtx1_watchdog.patch
deleted file mode 100644
index 276659a..0000000
--- a/target/linux/au1000-2.6/patches/004-mtx1_watchdog.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-diff -urN linux-2.6.21.1/drivers/char/watchdog/Kconfig linux-2.6.21.1.new/drivers/char/watchdog/Kconfig
---- linux-2.6.21.1/drivers/char/watchdog/Kconfig	2007-04-27 23:49:26.000000000 +0200
-+++ linux-2.6.21.1.new/drivers/char/watchdog/Kconfig	2007-05-24 20:05:52.000000000 +0200
-@@ -586,6 +586,14 @@
- 	  To compile this driver as a module, choose M here: the
- 	  module will be called rm9k_wdt.
- 
-+config MTX1_WATCHDOG
-+	tristate "MTX-1 Hardware Watchdog"
-+	depends on WATCHDOG && MIPS_MTX1
-+	help
-+	  Hardware driver for the AccessCube MTX-1 watchdog. This is a
-+	  watchdog timer that will reboot the machine after a 100 seconds
-+	  timer expired.
-+
- # S390 Architecture
- 
- config ZVM_WATCHDOG
-diff -urN linux-2.6.21.1/drivers/char/watchdog/Makefile linux-2.6.21.1.new/drivers/char/watchdog/Makefile
---- linux-2.6.21.1/drivers/char/watchdog/Makefile	2007-04-27 23:49:26.000000000 +0200
-+++ linux-2.6.21.1.new/drivers/char/watchdog/Makefile	2007-05-24 20:05:41.000000000 +0200
-@@ -74,6 +74,7 @@
- # MIPS Architecture
- obj-$(CONFIG_INDYDOG) += indydog.o
- obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o
-+obj-$(CONFIG_MTX1_WATCHDOG) += mtx-1_watchdog.o
- 
- # S390 Architecture
- 
diff --git a/target/linux/au1000-2.6/patches/010-au100_gpio_i2c.patch b/target/linux/au1000-2.6/patches/010-au100_gpio_i2c.patch
deleted file mode 100644
index 8cb869e..0000000
--- a/target/linux/au1000-2.6/patches/010-au100_gpio_i2c.patch
+++ /dev/null
@@ -1,455 +0,0 @@
-diff -urN linux-2.6.19/drivers/i2c/busses/Kconfig linux-2.6.19.new/drivers/i2c/busses/Kconfig
---- linux-2.6.19/drivers/i2c/busses/Kconfig	2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.new/drivers/i2c/busses/Kconfig	2006-12-28 17:04:34.000000000 +0100
-@@ -84,6 +84,17 @@
- 	  This driver can also be built as a module.  If so, the module
- 	  will be called i2c-au1550.
- 
-+config I2C_AU1X00GPIO
-+	tristate "Au1x00 i2c using GPIO pins"
-+	depends on I2C
-+	select I2C_ALGOBIT
-+	help
-+	  If you say yest to this option, support will be included for the
-+	  Au1x00 GPIO interface.
-+
-+	  This driver can also be built as a module. If so, the module
-+	  will be called i2c-au1x00gpio.
-+
- config I2C_ELEKTOR
- 	tristate "Elektor ISA card"
- 	depends on I2C && ISA && BROKEN_ON_SMP
-diff -urN linux-2.6.19/drivers/i2c/busses/Makefile linux-2.6.19.new/drivers/i2c/busses/Makefile
---- linux-2.6.19/drivers/i2c/busses/Makefile	2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.new/drivers/i2c/busses/Makefile	2006-12-28 03:07:37.000000000 +0100
-@@ -9,6 +9,7 @@
- obj-$(CONFIG_I2C_AMD756_S4882)	+= i2c-amd756-s4882.o
- obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o
- obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
-+obj-$(CONFIG_I2C_AU1X00GPIO)	+= i2c-au1x00gpio.o
- obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
- obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
- obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
-diff -urN linux-2.6.19/drivers/i2c/busses/i2c-au1x00gpio.c linux-2.6.19.new/drivers/i2c/busses/i2c-au1x00gpio.c
---- linux-2.6.19/drivers/i2c/busses/i2c-au1x00gpio.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.19.new/drivers/i2c/busses/i2c-au1x00gpio.c	2006-12-28 17:02:10.000000000 +0100
-@@ -0,0 +1,406 @@
-+/* ------------------------------------------------------------------------- */
-+/* i2c-au1x00gpio.c i2c-hw access for Au1x00 GPIO pins.                      */
-+/* ------------------------------------------------------------------------- */
-+/*   Copyright (C) 1995-2000 Michael Stickel
-+
-+    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., 675 Mass Ave, Cambridge, MA 02139, USA.		     */
-+/* ------------------------------------------------------------------------- */ 
-+
-+/* With some changes from Ky�stialkki <kmalkki@cc.hut.fi> and even
-+   Frodo Looijaard <frodol@dds.nl>
-+   Simon G. Vogl
-+*/
-+
-+/* $Id: i2c-au1x00gpio.c,v 1.1.1.2 2004/01/22 15:35:47 br1 Exp $ */
-+
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/stddef.h>
-+#include <linux/ioport.h>
-+#include <asm/uaccess.h>
-+#include <asm/io.h>
-+#include <asm-mips/mach-au1x00/au1000.h>
-+#include <asm-mips/mach-au1x00/au1000_gpio.h>
-+
-+#include <linux/slab.h>
-+#include <linux/mm.h>
-+
-+#include <linux/i2c.h>
-+#include <linux/i2c-algo-bit.h>
-+
-+struct i2c_au1x00gpio
-+{
-+	struct i2c_au1x00gpio *next;
-+
-+	short  scl_gpio;
-+	short  sda_gpio;
-+
-+	unsigned long scl_mask;
-+	unsigned long sda_mask;
-+
-+	struct i2c_adapter adapter;
-+	struct i2c_algo_bit_data bit_au1x00gpio_data;
-+};
-+
-+static struct i2c_au1x00gpio *adapter_list;
-+
-+
-+
-+/* ----- global defines -----------------------------------------------	*/
-+#define DEB(x)		/* should be reasonable open, close &c. 	*/
-+#define DEB2(x) 	/* low level debugging - very slow 		*/
-+#define DEBE(x)	x	/* error messages 				*/
-+
-+/* ----- printer port defines ------------------------------------------*/
-+
-+/* ----- local functions ----------------------------------------------	*/
-+
-+
-+//-- Primary GPIO
-+static void bit_au1x00gpio_setscl(void *data, int state)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  if (state)
-+    au_writel(adapter->scl_mask, SYS_TRIOUTCLR); // Disable Driver: Switch off Transistor => 1
-+  else
-+    au_writel(adapter->scl_mask, SYS_OUTPUTCLR); // Clear Output and switch on Transistor => 0
-+}
-+
-+
-+static void bit_au1x00gpio_setsda(void *data, int state)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  if (state)
-+    au_writel(adapter->sda_mask, SYS_TRIOUTCLR);
-+  else
-+    au_writel(adapter->sda_mask, SYS_OUTPUTCLR);
-+}
-+
-+
-+static int bit_au1x00gpio_getscl(void *data)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  return (au_readl(SYS_PINSTATERD) & adapter->scl_mask) ? 1 : 0;
-+}
-+
-+
-+static int bit_au1x00gpio_getsda(void *data)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  return (au_readl(SYS_PINSTATERD) & adapter->sda_mask) ? 1 : 0;
-+}
-+
-+
-+
-+
-+/*--
-+ *-- Functions for accessing GPIO-2
-+ *--
-+ */
-+static void bit_au1x00gpio2_setscl(void *data, int state)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  if (state)
-+    {
-+      au_writel(au_readl(GPIO2_DIR) & ~adapter->scl_mask, GPIO2_DIR);
-+    }
-+  else
-+    {
-+      au_writel(au_readl(GPIO2_OUTPUT) & ~adapter->scl_mask, GPIO2_OUTPUT);
-+      au_writel(au_readl(GPIO2_DIR) | adapter->scl_mask, GPIO2_DIR);
-+    }
-+}
-+
-+static void bit_au1x00gpio2_setsda(void *data, int state)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  if (state)
-+    {
-+      au_writel(au_readl(GPIO2_DIR) & ~adapter->sda_mask, GPIO2_DIR);
-+    }
-+  else
-+    {
-+      au_writel(au_readl(GPIO2_OUTPUT) & ~adapter->sda_mask, GPIO2_OUTPUT);
-+      au_writel(au_readl(GPIO2_DIR) | adapter->sda_mask, GPIO2_DIR);
-+    }
-+}
-+
-+static int bit_au1x00gpio2_getscl(void *data)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  return (au_readl(GPIO2_PINSTATE) & adapter->scl_mask) ? 1 : 0;
-+}
-+
-+static int bit_au1x00gpio2_getsda(void *data)
-+{
-+  struct i2c_au1x00gpio * adapter = (struct i2c_au1x00gpio *)data;
-+  return (au_readl(GPIO2_PINSTATE) & adapter->sda_mask) ? 1 : 0;
-+}
-+
-+
-+
-+static int check_i2c_au1x00gpio_adapter(struct i2c_au1x00gpio *adapter)
-+{
-+  int state = 0;
-+
-+  adapter->bit_au1x00gpio_data.setsda (adapter, 1);
-+  adapter->bit_au1x00gpio_data.setscl (adapter, 1);
-+
-+  if (adapter->bit_au1x00gpio_data.getsda(adapter)==0)
-+    {
-+      printk ("i2c-au1x00gpio: sda line should read 1 but reads 0\n");
-+      state = -1;
-+    }
-+  if (adapter->bit_au1x00gpio_data.getscl(adapter)==0)
-+    {
-+      printk ("i2c-au1x00gpio: scl line should read 1 but reads 0\n");
-+      state = -1;
-+    }
-+
-+
-+  adapter->bit_au1x00gpio_data.setsda (adapter, 0);
-+  adapter->bit_au1x00gpio_data.setscl (adapter, 0);
-+
-+  if (adapter->bit_au1x00gpio_data.getsda(adapter)==1)
-+    {
-+      printk ("i2c-au1x00gpio: sda line should read 0 but reads 1\n");
-+      state = -1;
-+    }
-+  if (adapter->bit_au1x00gpio_data.getscl(adapter)==1)
-+    {
-+      printk ("i2c-au1x00gpio: scl line should read 0 but reads 1\n");
-+      state = -1;
-+    }
-+
-+  if (state==0)
-+    printk ("i2c-au1x00gpio: adapter with scl=GPIO%d,sda=GPIO%d is working\n",
-+	    adapter->scl_gpio, adapter->sda_gpio
-+	    );
-+  return state;
-+}
-+
-+
-+
-+#if 0
-+static int bit_au1x00gpio_reg(struct i2c_client *client)
-+{
-+	return 0;
-+}
-+
-+static int bit_au1x00gpio_unreg(struct i2c_client *client)
-+{
-+	return 0;
-+}
-+
-+static void bit_au1x00gpio_inc_use(struct i2c_adapter *adap)
-+{
-+	MOD_INC_USE_COUNT;
-+}
-+
-+static void bit_au1x00gpio_dec_use(struct i2c_adapter *adap)
-+{
-+	MOD_DEC_USE_COUNT;
-+}
-+#endif
-+ 
-+
-+
-+static struct i2c_algo_bit_data bit_au1x00gpio_data = {
-+	.data = NULL,
-+	.setsda = bit_au1x00gpio_setsda,
-+	.setscl = bit_au1x00gpio_setscl,
-+	.getsda = bit_au1x00gpio_getsda,
-+	.getscl = bit_au1x00gpio_getscl,
-+	.udelay = 80,
-+	.timeout = HZ,
-+}; 
-+
-+
-+static struct i2c_adapter bit_au1x00gpio_ops = {
-+        .owner          = THIS_MODULE,
-+        .name           = "Au1x00 GPIO I2C adapter",
-+        .id             = I2C_HW_B_AU1x00GPIO,
-+};
-+
-+
-+
-+/*
-+ * scl_gpio:
-+ *   0..31 for primary GPIO's
-+ *   200..215 for secondary GPIO's
-+ *
-+ * sda_gpio:
-+ *   0..31 for primary GPIO's
-+ *   200..215 for secondary GPIO's
-+ *
-+ * You can even mix primary and secondary GPIO's.
-+ * E.g.:  i2c_au1x00gpio_create(4,206);
-+ */
-+
-+static int i2c_au1x00gpio_create (int scl_gpio, int sda_gpio)
-+{
-+  if ((scl_gpio < 32 || (scl_gpio >= 200 && scl_gpio <= 215)) &&
-+      (scl_gpio < 32 || (scl_gpio >= 200 && scl_gpio <= 215)))
-+    {
-+	struct i2c_au1x00gpio *adapter = kmalloc(sizeof(struct i2c_au1x00gpio),
-+					  GFP_KERNEL);
-+	if (!adapter) {
-+		printk(KERN_ERR "i2c-au1x00-gpio: Unable to malloc.\n");
-+		return -1;
-+	}
-+
-+	printk(KERN_DEBUG "i2c-au1x00-gpio.o: attaching to SCL=GPIO%d, SDA=GPIO%d\n",
-+	       scl_gpio, sda_gpio);
-+
-+	memset (adapter, 0, sizeof(struct i2c_au1x00gpio));
-+
-+	adapter->adapter = bit_au1x00gpio_ops;
-+
-+	adapter->adapter.algo_data = &adapter->bit_au1x00gpio_data;
-+	adapter->bit_au1x00gpio_data = bit_au1x00gpio_data;
-+	adapter->bit_au1x00gpio_data.data = adapter;
-+
-+	adapter->bit_au1x00gpio_data.data = adapter;
-+
-+	adapter->scl_gpio = scl_gpio;
-+	adapter->sda_gpio = sda_gpio;
-+
-+        if (sda_gpio < 32)
-+          {
-+	    adapter->bit_au1x00gpio_data.setsda = bit_au1x00gpio_setsda;
-+	    adapter->bit_au1x00gpio_data.getsda = bit_au1x00gpio_getsda;
-+            adapter->sda_mask = 1<<sda_gpio;
-+          }
-+        else if (sda_gpio >= 200 && sda_gpio <= 215)
-+          {
-+	    adapter->bit_au1x00gpio_data.setsda = bit_au1x00gpio2_setsda;
-+	    adapter->bit_au1x00gpio_data.getsda = bit_au1x00gpio2_getsda;
-+            adapter->sda_mask = 1<<(sda_gpio-200);
-+          }
-+
-+
-+        if (scl_gpio < 32)
-+          {
-+	    adapter->bit_au1x00gpio_data.setscl = bit_au1x00gpio_setscl;
-+	    adapter->bit_au1x00gpio_data.getscl = bit_au1x00gpio_getscl;
-+            adapter->scl_mask = 1<<scl_gpio;
-+          }
-+        else if (scl_gpio >= 200 && scl_gpio <= 215)
-+          {
-+ 	    adapter->bit_au1x00gpio_data.setscl = bit_au1x00gpio2_setscl;
-+	    adapter->bit_au1x00gpio_data.getscl = bit_au1x00gpio2_getscl;
-+            adapter->scl_mask = 1<<(scl_gpio-200);
-+          }
-+
-+	au_writel(0L, SYS_PININPUTEN);
-+	if (check_i2c_au1x00gpio_adapter(adapter)==0)
-+	  {
-+	    adapter->bit_au1x00gpio_data.setsda (adapter, 1);
-+	    adapter->bit_au1x00gpio_data.setscl (adapter, 1);
-+
-+	    if (i2c_bit_add_bus(&adapter->adapter) < 0)
-+	      {
-+		printk(KERN_ERR "i2c-au1x00-gpio: Unable to register with I2C.\n");
-+		kfree(adapter);
-+		return -1;		/* No good */
-+	      }
-+	    
-+	    adapter->next = adapter_list;
-+	    adapter_list = adapter;
-+	    return 0;
-+	  }
-+    }
-+  else
-+    printk(KERN_ERR "i2c-au1x00-gpio: Invalid argument scl_gpio=%d, sda_gpio=%d.\n", scl_gpio, sda_gpio);
-+  return -1;
-+}
-+
-+
-+
-+static void i2c_au1x00gpio_delete (int scl_gpio, int sda_gpio)
-+{
-+	struct i2c_au1x00gpio *adapter, *prev = NULL;
-+
-+	for (adapter = adapter_list; adapter; adapter = adapter->next)
-+	{
-+		if (adapter->scl_gpio == scl_gpio &&
-+		    adapter->sda_gpio == sda_gpio)
-+		{
-+			i2c_del_adapter(&adapter->adapter);
-+			if (prev)
-+				prev->next = adapter->next;
-+			else
-+				adapter_list = adapter->next;
-+			kfree(adapter);
-+			return;
-+		}
-+		prev = adapter;
-+	}
-+}
-+
-+
-+
-+
-+
-+#ifndef CONFIG_I2C_AU1X00GPIO_SCL
-+#define CONFIG_I2C_AU1X00GPIO_SCL (210)
-+#endif
-+
-+#ifndef CONFIG_I2C_AU1X00GPIO_SDA
-+#define CONFIG_I2C_AU1X00GPIO_SDA (9)
-+#endif
-+
-+static int au1x00gpiopin_scl = CONFIG_I2C_AU1X00GPIO_SCL;
-+static int au1x00gpiopin_sda = CONFIG_I2C_AU1X00GPIO_SDA;
-+
-+
-+
-+static int __init i2c_bit_au1x00gpio_init(void)
-+{
-+  printk(KERN_INFO "i2c-au1x00gpio.o: i2c Au1x00 GPIO adapter module version\n");
-+
-+  if (i2c_au1x00gpio_create (au1x00gpiopin_scl, au1x00gpiopin_sda) == 0)
-+    {
-+      printk(KERN_INFO "i2c-au1x00gpio.o: registered I2C-Bus for GPIO%d,GPIO%d\n",
-+            au1x00gpiopin_scl, au1x00gpiopin_sda
-+            );
-+      return 0;
-+    }
-+  printk(KERN_INFO "i2c-au1x00gpio.o: failed to register I2C-Bus for GPIO%d,GPIO%d\n",
-+            au1x00gpiopin_scl, au1x00gpiopin_sda
-+        );
-+  return -1;
-+}
-+
-+
-+static void __exit i2c_bit_au1x00gpio_exit(void)
-+{
-+  i2c_au1x00gpio_delete (au1x00gpiopin_scl, au1x00gpiopin_sda);
-+}
-+
-+module_param(au1x00gpiopin_scl, int, 0644);
-+MODULE_PARM_DESC(au1x00gpiopin_scl, "GPIO pin number used for SCL pin.");
-+
-+module_param(au1x00gpiopin_sda, int, 0644);
-+MODULE_PARM_DESC(au1x00gpiopin_sda, "GPIO pin number used for SDA pin.");
-+
-+MODULE_AUTHOR("Michael Stickel <michael@cubic.org>");
-+MODULE_DESCRIPTION("I2C-Bus adapter routines for Au1x00 GPIO adapter.");
-+MODULE_LICENSE("GPL");
-+
-+module_init(i2c_bit_au1x00gpio_init);
-+module_exit(i2c_bit_au1x00gpio_exit);
-diff -urN linux-2.6.19/include/linux/i2c-id.h linux-2.6.19.new/include/linux/i2c-id.h
---- linux-2.6.19/include/linux/i2c-id.h	2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.new/include/linux/i2c-id.h	2006-12-28 03:12:15.000000000 +0100
-@@ -231,6 +231,9 @@
- /* --- Au1550 PSC adapters adapters					*/
- #define I2C_HW_AU1550_PSC	0x1b0000
- 
-+/* --- Au1x00 i2c GPIO adapter						*/
-+#define I2C_HW_B_AU1x00GPIO 0x1b
-+
- /* --- SMBus only adapters						*/
- #define I2C_HW_SMBUS_PIIX4	0x040000
- #define I2C_HW_SMBUS_ALI15X3	0x040001