linux: add ts72xx support to 2.6.22.6 and 2.6.22+2.6.23-rc5 (see version policy for the renaming reason), closes #2918

15 files changed, 1318 insertions, 0 deletions

diff --git a/packages/linux/linux-2.6.22.6/.mtn2git_empty b/packages/linux/linux-2.6.22.6/.mtn2git_empty
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/.mtn2git_empty
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/.mtn2git_empty b/packages/linux/linux-2.6.22.6/ts72xx/.mtn2git_empty
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/.mtn2git_empty
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-gpio-interrupt-debounce.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-gpio-interrupt-debounce.diff
new file mode 100644
index 0000000000..27146c30f1
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-gpio-interrupt-debounce.diff
@@ -0,0 +1,87 @@
+
+Implement GPIO interrupt debouncing on ep93xx.
+
+Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
+
+Index: linux-2.6.22/arch/arm/mach-ep93xx/core.c
+===================================================================
+--- linux-2.6.22.orig/arch/arm/mach-ep93xx/core.c
++++ linux-2.6.22/arch/arm/mach-ep93xx/core.c
+@@ -154,6 +154,7 @@ struct sys_timer ep93xx_timer = {
+  *************************************************************************/
+ static unsigned char gpio_int_unmasked[3];
+ static unsigned char gpio_int_enabled[3];
++static unsigned char gpio_int_debounce[3];
+ static unsigned char gpio_int_type1[3];
+ static unsigned char gpio_int_type2[3];
+ 
+@@ -161,16 +162,19 @@ static void update_gpio_int_params(int a
+ {
+ 	if (abf == 0) {
+ 		__raw_writeb(0, EP93XX_GPIO_A_INT_ENABLE);
++		__raw_writeb(gpio_int_debounce[0], EP93XX_GPIO_A_INT_DEBOUNCE);
+ 		__raw_writeb(gpio_int_type2[0], EP93XX_GPIO_A_INT_TYPE2);
+ 		__raw_writeb(gpio_int_type1[0], EP93XX_GPIO_A_INT_TYPE1);
+ 		__raw_writeb(gpio_int_unmasked[0] & gpio_int_enabled[0], EP93XX_GPIO_A_INT_ENABLE);
+ 	} else if (abf == 1) {
+ 		__raw_writeb(0, EP93XX_GPIO_B_INT_ENABLE);
++		__raw_writeb(gpio_int_debounce[1], EP93XX_GPIO_B_INT_DEBOUNCE);
+ 		__raw_writeb(gpio_int_type2[1], EP93XX_GPIO_B_INT_TYPE2);
+ 		__raw_writeb(gpio_int_type1[1], EP93XX_GPIO_B_INT_TYPE1);
+ 		__raw_writeb(gpio_int_unmasked[1] & gpio_int_enabled[1], EP93XX_GPIO_B_INT_ENABLE);
+ 	} else if (abf == 2) {
+ 		__raw_writeb(0, EP93XX_GPIO_F_INT_ENABLE);
++		__raw_writeb(gpio_int_debounce[2], EP93XX_GPIO_F_INT_DEBOUNCE);
+ 		__raw_writeb(gpio_int_type2[2], EP93XX_GPIO_F_INT_TYPE2);
+ 		__raw_writeb(gpio_int_type1[2], EP93XX_GPIO_F_INT_TYPE1);
+ 		__raw_writeb(gpio_int_unmasked[2] & gpio_int_enabled[2], EP93XX_GPIO_F_INT_ENABLE);
+@@ -361,6 +365,13 @@ static int ep93xx_gpio_irq_type(unsigned
+ 	} else {
+ 		gpio_int_enabled[port] &= ~(1 << line);
+ 	}
++
++	if (type & IRQ_TYPE_DEBOUNCE) {
++		gpio_int_debounce[port] |= 1 << line;
++	} else {
++		gpio_int_debounce[port] &= ~(1 << line);
++	}
++
+ 	update_gpio_int_params(port);
+ 
+ 	return 0;
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/ep93xx-regs.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/ep93xx-regs.h
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/ep93xx-regs.h
+@@ -78,16 +78,19 @@
+ #define EP93XX_GPIO_F_INT_ACK		EP93XX_GPIO_REG(0x54)
+ #define EP93XX_GPIO_F_INT_ENABLE	EP93XX_GPIO_REG(0x58)
+ #define EP93XX_GPIO_F_INT_STATUS	EP93XX_GPIO_REG(0x5c)
++#define EP93XX_GPIO_F_INT_DEBOUNCE	EP93XX_GPIO_REG(0x64)
+ #define EP93XX_GPIO_A_INT_TYPE1		EP93XX_GPIO_REG(0x90)
+ #define EP93XX_GPIO_A_INT_TYPE2		EP93XX_GPIO_REG(0x94)
+ #define EP93XX_GPIO_A_INT_ACK		EP93XX_GPIO_REG(0x98)
+ #define EP93XX_GPIO_A_INT_ENABLE	EP93XX_GPIO_REG(0x9c)
+ #define EP93XX_GPIO_A_INT_STATUS	EP93XX_GPIO_REG(0xa0)
++#define EP93XX_GPIO_A_INT_DEBOUNCE	EP93XX_GPIO_REG(0xa8)
+ #define EP93XX_GPIO_B_INT_TYPE1		EP93XX_GPIO_REG(0xac)
+ #define EP93XX_GPIO_B_INT_TYPE2		EP93XX_GPIO_REG(0xb0)
+ #define EP93XX_GPIO_B_INT_ACK		EP93XX_GPIO_REG(0xb4)
+ #define EP93XX_GPIO_B_INT_ENABLE	EP93XX_GPIO_REG(0xb8)
+ #define EP93XX_GPIO_B_INT_STATUS	EP93XX_GPIO_REG(0xbc)
++#define EP93XX_GPIO_B_INT_DEBOUNCE	EP93XX_GPIO_REG(0xc4)
+ 
+ #define EP93XX_AAC_BASE			(EP93XX_APB_VIRT_BASE + 0x00080000)
+ 
+Index: linux-2.6.22/include/linux/irq.h
+===================================================================
+--- linux-2.6.22.orig/include/linux/irq.h
++++ linux-2.6.22/include/linux/irq.h
+@@ -44,6 +44,7 @@ typedef	void fastcall (*irq_flow_handler
+ #define IRQ_TYPE_LEVEL_LOW	0x00000008	/* Level low type */
+ #define IRQ_TYPE_SENSE_MASK	0x0000000f	/* Mask of the above */
+ #define IRQ_TYPE_PROBE		0x00000010	/* Probing in progress */
++#define IRQ_TYPE_DEBOUNCE	0x00000020	/* Enable HW debounce */
+ 
+ /* Internal flags */
+ #define IRQ_INPROGRESS		0x00000100	/* IRQ handler active - do not enter! */
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-i2c-bus.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-i2c-bus.diff
new file mode 100644
index 0000000000..d3c66940de
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-i2c-bus.diff
@@ -0,0 +1,220 @@
+
+I2C bus driver using ep93xx GPIOs.
+
+Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
+
+Index: linux-2.6.22/drivers/i2c/busses/Kconfig
+===================================================================
+--- linux-2.6.22.orig/drivers/i2c/busses/Kconfig	2007-08-30 00:42:45.000000000 +0200
++++ linux-2.6.22/drivers/i2c/busses/Kconfig	2007-08-30 00:42:52.000000000 +0200
+@@ -635,4 +635,16 @@
+ 	  This driver can also be built as a module.  If so, the module
+ 	  will be called i2c-pnx.
+ 
++config I2C_EP93XX
++	tristate "Cirrus Logic EP93XX GPIO-based I2C interface"
++	depends on I2C && ARCH_EP93XX
++	select I2C_ALGOBIT
++	help
++	  Say Y here if you have an Cirrus Logic EP93XX based
++	  system and are using GPIO lines for an I2C bus.
++
++	  This support is also available as a module. If so, the module
++	  will be called i2c-ep93xx.
++
++
+ endmenu
+Index: linux-2.6.22/drivers/i2c/busses/Makefile
+===================================================================
+--- linux-2.6.22.orig/drivers/i2c/busses/Makefile	2007-08-30 00:42:45.000000000 +0200
++++ linux-2.6.22/drivers/i2c/busses/Makefile	2007-08-30 00:42:52.000000000 +0200
+@@ -52,6 +52,7 @@
+ obj-$(CONFIG_I2C_VOODOO3)	+= i2c-voodoo3.o
+ obj-$(CONFIG_SCx200_ACB)	+= scx200_acb.o
+ obj-$(CONFIG_SCx200_I2C)	+= scx200_i2c.o
++obj-$(CONFIG_I2C_EP93XX)	+= i2c-ep93xx.o
+ 
+ ifeq ($(CONFIG_I2C_DEBUG_BUS),y)
+ EXTRA_CFLAGS += -DDEBUG
+Index: linux-2.6.22/drivers/i2c/busses/i2c-ep93xx.c
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/i2c/busses/i2c-ep93xx.c	2007-08-30 00:42:52.000000000 +0200
+@@ -0,0 +1,159 @@
++/*
++ * EP93XX I2C bus driver.
++ * Copyright (C) 2007 Lennert Buytenhek <buytenh@wantstofly.org>
++ *
++ * An I2C bus driver for the Cirrus Logic EP93xx SoC.
++ *
++ * Based on an earlier version by Alessandro Zummo.
++ */
++
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/i2c.h>
++#include <linux/i2c-algo-bit.h>
++#include <asm/hardware.h>
++#include <asm/arch/gpio.h>
++
++struct ep93xx_i2c_priv {
++	struct ep93xx_i2c_data		*data;
++	struct i2c_adapter		adapter;
++	struct i2c_algo_bit_data	algo_data;
++	int				sda;
++	int				scl;
++};
++
++
++static void ep93xx_bit_setsda(void *cookie, int val)
++{
++	struct ep93xx_i2c_priv *priv = cookie;
++
++	if (val) {
++		gpio_line_config(priv->data->sda_pin, GPIO_IN);
++		if (priv->scl && !priv->sda && priv->data->stop != NULL)
++			priv->data->stop(priv->data->cookie);
++		priv->sda = 1;
++	} else {
++		if (priv->scl && priv->sda && priv->data->start != NULL)
++			priv->data->start(priv->data->cookie);
++		gpio_line_config(priv->data->sda_pin, GPIO_OUT);
++		gpio_line_set(priv->data->sda_pin, 0);
++		priv->sda = 0;
++	}
++}
++
++static void ep93xx_bit_setscl(void *cookie, int val)
++{
++	struct ep93xx_i2c_priv *priv = cookie;
++
++	if (val) {
++		gpio_line_config(priv->data->scl_pin, GPIO_IN);
++		priv->scl = 1;
++	} else {
++		gpio_line_config(priv->data->scl_pin, GPIO_OUT);
++		gpio_line_set(priv->data->scl_pin, 0);
++		priv->scl = 0;
++	}
++}
++
++static int ep93xx_bit_getsda(void *cookie)
++{
++	struct ep93xx_i2c_priv *priv = cookie;
++
++	if (priv->sda == 0)
++		BUG();
++
++	return gpio_line_get(priv->data->sda_pin);
++}
++
++static int ep93xx_bit_getscl(void *cookie)
++{
++	struct ep93xx_i2c_priv *priv = cookie;
++
++	if (priv->scl == 0)
++		BUG();
++
++	return gpio_line_get(priv->data->scl_pin);
++}
++
++
++static int ep93xx_i2c_probe(struct platform_device *pdev)
++{
++	struct ep93xx_i2c_priv *priv;
++	int err;
++
++	priv = kzalloc(sizeof(struct ep93xx_i2c_priv), GFP_KERNEL);
++	if (priv == NULL)
++		return -ENOMEM;
++
++	priv->data = pdev->dev.platform_data;
++
++	strlcpy(priv->adapter.name, pdev->dev.driver->name, I2C_NAME_SIZE);
++	priv->adapter.algo_data = &priv->algo_data;
++	priv->adapter.class = I2C_CLASS_ALL;
++	priv->adapter.dev.parent = &pdev->dev;
++
++	priv->algo_data.data = priv;
++	priv->algo_data.setsda = ep93xx_bit_setsda;
++	priv->algo_data.setscl = ep93xx_bit_setscl;
++	priv->algo_data.getsda = ep93xx_bit_getsda;
++	priv->algo_data.getscl = ep93xx_bit_getscl;
++	priv->algo_data.udelay = 10;
++	priv->algo_data.timeout = 100;
++
++	priv->sda = 1;
++	gpio_line_config(priv->data->sda_pin, GPIO_IN);
++
++	priv->scl = 1;
++	gpio_line_config(priv->data->scl_pin, GPIO_IN);
++
++	err = i2c_bit_add_bus(&priv->adapter);
++	if (err) {
++		printk(KERN_ERR "ERROR: Could not install %s\n",
++			pdev->dev.bus_id);
++		kfree(priv);
++		return err;
++	}
++
++	platform_set_drvdata(pdev, priv);
++
++	return 0;
++}
++
++static int ep93xx_i2c_remove(struct platform_device *pdev)
++{
++	struct ep93xx_i2c_priv *priv;
++
++	priv = platform_get_drvdata(pdev);
++	i2c_del_adapter(&priv->adapter);
++	platform_set_drvdata(pdev, NULL);
++	kfree(priv);
++
++	return 0;
++}
++
++static struct platform_driver ep93xx_i2c_driver = {
++	.probe		= ep93xx_i2c_probe,
++	.remove		= ep93xx_i2c_remove,
++	.driver		= {
++		.name	= "ep93xx-i2c",
++		.owner	= THIS_MODULE,
++	},
++};
++
++static int __init ep93xx_i2c_init(void)
++{
++	return platform_driver_register(&ep93xx_i2c_driver);
++}
++
++static void __exit ep93xx_i2c_exit(void)
++{
++	platform_driver_unregister(&ep93xx_i2c_driver);
++}
++
++module_init(ep93xx_i2c_init);
++module_exit(ep93xx_i2c_exit);
++
++MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
++MODULE_DESCRIPTION("GPIO-based I2C adapter for EP93XX systems");
++MODULE_LICENSE("GPL");
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/platform.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/platform.h	2007-08-30 00:42:45.000000000 +0200
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/platform.h	2007-08-30 00:42:52.000000000 +0200
+@@ -16,5 +16,13 @@
+ 	unsigned char	phy_id;
+ };
+ 
++struct ep93xx_i2c_data {
++	int		sda_pin;
++	int		scl_pin;
++	void		*cookie;
++	void		(*start)(void *);
++	void		(*stop)(void *);
++};
++
+ 
+ #endif
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-i2c.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-i2c.diff
new file mode 100644
index 0000000000..b68fb14e2e
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-i2c.diff
@@ -0,0 +1,110 @@
+
+Instantiate the ep93xx gpio i2c bus driver in the generic ep93xx
+code.
+
+Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
+
+Index: linux-2.6.22/arch/arm/mach-ep93xx/core.c
+===================================================================
+--- linux-2.6.22.orig/arch/arm/mach-ep93xx/core.c	2007-08-30 00:42:49.000000000 +0200
++++ linux-2.6.22/arch/arm/mach-ep93xx/core.c	2007-08-30 00:43:00.000000000 +0200
+@@ -509,6 +509,52 @@
+ };
+ 
+ 
++static DEFINE_MUTEX(eeclk_eedat_mutex);
++static int i2c_transaction_in_progress;
++
++static void ep93xx_i2c_start_condition(void *cookie)
++{
++	if (!i2c_transaction_in_progress) {
++		mutex_lock(&eeclk_eedat_mutex);
++		i2c_transaction_in_progress = 1;
++	}
++}
++
++static void ep93xx_i2c_stop_condition(void *cookie)
++{
++	if (i2c_transaction_in_progress) {
++		mutex_unlock(&eeclk_eedat_mutex);
++		i2c_transaction_in_progress = 0;
++	} else {
++		printk(KERN_WARNING "ep93xx: i2c stop without start??\n");
++	}
++}
++
++static struct ep93xx_i2c_data ep93xx_i2c_gpio_data = {
++	.sda_pin		= EP93XX_GPIO_LINE_EEDAT,
++	.scl_pin		= EP93XX_GPIO_LINE_EECLK,
++	.start			= ep93xx_i2c_start_condition,
++	.stop			= ep93xx_i2c_stop_condition,
++};
++
++static struct platform_device ep93xx_i2c_device = {
++	.name			= "ep93xx-i2c",
++	.id			= 0,
++	.dev.platform_data	= &ep93xx_i2c_gpio_data,
++	.num_resources		= 0,
++};
++
++void eeclk_eedat_claim(void)
++{
++	mutex_lock(&eeclk_eedat_mutex);
++}
++
++void eeclk_eedat_release(void)
++{
++	mutex_unlock(&eeclk_eedat_mutex);
++}
++
++
+ void __init ep93xx_init_devices(void)
+ {
+ 	unsigned int v;
+@@ -521,10 +567,20 @@
+ 	__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
+ 	__raw_writel(v, EP93XX_SYSCON_DEVICE_CONFIG);
+ 
++	/*
++	 * When EECLK/EEDAT are in open drain mode (EEDRIVE=0b11),
++	 * writing a 1 to their Data Register bits causes subsequent
++	 * reads from the Data Direction Register to return 'input',
++	 * which confuses gpio_line_config().  So, we use CMOS drive
++	 * mode instead.
++	 */
++	__raw_writel(0, EP93XX_GPIO_EEDRIVE);
++
+ 	amba_device_register(&uart1_device, &iomem_resource);
+ 	amba_device_register(&uart2_device, &iomem_resource);
+ 	amba_device_register(&uart3_device, &iomem_resource);
+ 
+ 	platform_device_register(&ep93xx_rtc_device);
+ 	platform_device_register(&ep93xx_ohci_device);
++	platform_device_register(&ep93xx_i2c_device);
+ }
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/ep93xx-regs.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/ep93xx-regs.h	2007-08-30 00:42:49.000000000 +0200
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/ep93xx-regs.h	2007-08-30 00:43:00.000000000 +0200
+@@ -91,6 +91,7 @@
+ #define EP93XX_GPIO_B_INT_ENABLE	EP93XX_GPIO_REG(0xb8)
+ #define EP93XX_GPIO_B_INT_STATUS	EP93XX_GPIO_REG(0xbc)
+ #define EP93XX_GPIO_B_INT_DEBOUNCE	EP93XX_GPIO_REG(0xc4)
++#define EP93XX_GPIO_EEDRIVE		EP93XX_GPIO_REG(0xc8)
+ 
+ #define EP93XX_AAC_BASE			(EP93XX_APB_VIRT_BASE + 0x00080000)
+ 
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/platform.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/platform.h	2007-08-30 00:42:52.000000000 +0200
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/platform.h	2007-08-30 00:43:00.000000000 +0200
+@@ -10,6 +10,9 @@
+ void ep93xx_init_devices(void);
+ extern struct sys_timer ep93xx_timer;
+ 
++void eeclk_eedat_claim(void);
++void eeclk_eedat_release(void);
++
+ struct ep93xx_eth_data
+ {
+ 	unsigned char	dev_addr[6];
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-leds.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-leds.diff
new file mode 100644
index 0000000000..0d11311d10
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-leds.diff
@@ -0,0 +1,181 @@
+
+EP93xx leds driver
+
+Signed-off-by: Petr Stetiar <ynezz@true.cz>
+
+Index: linux-2.6.22/arch/arm/mach-ep93xx/core.c
+===================================================================
+--- linux-2.6.22.orig/arch/arm/mach-ep93xx/core.c
++++ linux-2.6.22/arch/arm/mach-ep93xx/core.c
+@@ -555,6 +555,12 @@ void eeclk_eedat_release(void)
+ }
+ 
+ 
++static struct platform_device ep93xx_led_device = {
++	.name			= "ep93xx-led",
++	.id			= -1,
++};
++
++
+ void __init ep93xx_init_devices(void)
+ {
+ 	unsigned int v;
+@@ -583,4 +589,5 @@ void __init ep93xx_init_devices(void)
+ 	platform_device_register(&ep93xx_rtc_device);
+ 	platform_device_register(&ep93xx_ohci_device);
+ 	platform_device_register(&ep93xx_i2c_device);
++	platform_device_register(&ep93xx_led_device);
+ }
+Index: linux-2.6.22/drivers/leds/Kconfig
+===================================================================
+--- linux-2.6.22.orig/drivers/leds/Kconfig
++++ linux-2.6.22/drivers/leds/Kconfig
+@@ -95,6 +95,12 @@ config LEDS_COBALT
+ 	help
+ 	  This option enables support for the front LED on Cobalt Server
+ 
++config LEDS_EP93XX
++	tristate "LED Support for Cirrus Logic EP93xx"
++	depends on LEDS_CLASS && ARCH_EP93XX
++	help
++	  This option enables support for the Cirrus Logic EP93xx based boards.
++
+ comment "LED Triggers"
+ 
+ config LEDS_TRIGGERS
+Index: linux-2.6.22/drivers/leds/Makefile
+===================================================================
+--- linux-2.6.22.orig/drivers/leds/Makefile
++++ linux-2.6.22/drivers/leds/Makefile
+@@ -16,6 +16,7 @@ obj-$(CONFIG_LEDS_NET48XX)		+= leds-net4
+ obj-$(CONFIG_LEDS_WRAP)			+= leds-wrap.o
+ obj-$(CONFIG_LEDS_H1940)		+= leds-h1940.o
+ obj-$(CONFIG_LEDS_COBALT)		+= leds-cobalt.o
++obj-$(CONFIG_LEDS_EP93XX)		+= leds-ep93xx.o
+ 
+ # LED Triggers
+ obj-$(CONFIG_LEDS_TRIGGER_TIMER)	+= ledtrig-timer.o
+Index: linux-2.6.22/drivers/leds/leds-ep93xx.c
+===================================================================
+--- /dev/null
++++ linux-2.6.22/drivers/leds/leds-ep93xx.c
+@@ -0,0 +1,119 @@
++/*
++ * LEDs driver for Cirrus Logic EP93xx
++ *
++ * Author: Petr Stetiar <ynezz@true.cz>
++ *
++ * Based on leds-corgi.c by Richard Purdie
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
++#include <linux/leds.h>
++#include <asm/mach-types.h>
++#include <asm/arch/hardware.h>
++#include <asm/arch/gpio.h>
++
++static void ep93xx_green_led_set(struct led_classdev *led_cdev, enum led_brightness value)
++{
++	if (value)
++		gpio_line_set(EP93XX_GPIO_LINE_GRLED, EP93XX_GPIO_HIGH);
++	else
++		gpio_line_set(EP93XX_GPIO_LINE_GRLED, EP93XX_GPIO_LOW);
++}
++
++static void ep93xx_red_led_set(struct led_classdev *led_cdev, enum led_brightness value)
++{
++	if (value)
++		gpio_line_set(EP93XX_GPIO_LINE_RDLED, EP93XX_GPIO_HIGH);
++	else
++		gpio_line_set(EP93XX_GPIO_LINE_RDLED, EP93XX_GPIO_LOW);
++}
++
++
++static struct led_classdev ep93xx_green_led = {
++	.name			= "ep93xx:green",
++	.default_trigger	= "none",
++	.brightness_set		= ep93xx_green_led_set,
++};
++
++static struct led_classdev ep93xx_red_led = {
++	.name			= "ep93xx:red",
++	.default_trigger	= "heartbeat",
++	.brightness_set		= ep93xx_red_led_set,
++};
++
++#ifdef CONFIG_PM
++static int ep93xx_led_suspend(struct platform_device *dev, pm_message_t state)
++{
++	led_classdev_suspend(&ep93xx_green_led);
++	led_classdev_suspend(&ep93xx_red_led);
++	return 0;
++}
++
++static int ep93xx_led_resume(struct platform_device *dev)
++{
++	led_classdev_resume(&ep93xx_red_led);
++	led_classdev_resume(&ep93xx_green_led);
++	return 0;
++}
++#endif
++
++static int ep93xx_led_probe(struct platform_device *pdev)
++{
++	int ret;
++
++	gpio_line_config(EP93XX_GPIO_LINE_GRLED, GPIO_OUT);
++	gpio_line_config(EP93XX_GPIO_LINE_RDLED, GPIO_OUT);
++
++	ret = led_classdev_register(&pdev->dev, &ep93xx_green_led);
++	if (ret < 0)
++		return ret;
++
++	ret = led_classdev_register(&pdev->dev, &ep93xx_red_led);
++	if (ret < 0)
++		led_classdev_unregister(&ep93xx_green_led);
++
++	return ret;
++}
++
++static int ep93xx_led_remove(struct platform_device *pdev)
++{
++	led_classdev_unregister(&ep93xx_green_led);
++	led_classdev_unregister(&ep93xx_red_led);
++	return 0;
++}
++
++static struct platform_driver ep93xx_led_driver = {
++	.probe		= ep93xx_led_probe,
++	.remove		= ep93xx_led_remove,
++#ifdef CONFIG_PM
++	.suspend	= ep93xx_led_suspend,
++	.resume		= ep93xx_led_resume,
++#endif
++	.driver		= {
++		.name		= "ep93xx-led",
++	},
++};
++
++static int __init ep93xx_led_init(void)
++{
++	return platform_driver_register(&ep93xx_led_driver);
++}
++
++static void __exit ep93xx_led_exit(void)
++{
++ 	platform_driver_unregister(&ep93xx_led_driver);
++}
++
++module_init(ep93xx_led_init);
++module_exit(ep93xx_led_exit);
++
++MODULE_AUTHOR("Petr Stetiar <ynezz@true.cz>");
++MODULE_DESCRIPTION("Cirrus Logic EP93xx LED driver");
++MODULE_LICENSE("GPL");
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-maverick-uniqid.patch b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-maverick-uniqid.patch
new file mode 100644
index 0000000000..fb6c8cfe18
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-maverick-uniqid.patch
@@ -0,0 +1,38 @@
+
+Adds support for SoC's unique ID (Maverick Key) in /proc/cpuinfo
+
+Signed-off-by: Petr Stetiar <ynezz@true.cz>
+
+Index: linux-2.6.22/arch/arm/kernel/setup.c
+===================================================================
+--- linux-2.6.22.orig/arch/arm/kernel/setup.c	2007-09-02 23:08:51.000000000 +0200
++++ linux-2.6.22/arch/arm/kernel/setup.c	2007-09-02 23:10:24.000000000 +0200
+@@ -959,8 +959,15 @@
+ 
+ 	seq_printf(m, "Hardware\t: %s\n", machine_name);
+ 	seq_printf(m, "Revision\t: %04x\n", system_rev);
++
++#if defined(CONFIG_ARCH_EP93XX)
++#include <asm/arch/ep93xx-regs.h>
++	seq_printf(m, "Serial\t\t: %016x\n",
++		   *((unsigned int *)EP93XX_SECURITY_UNIQID));
++#else
+ 	seq_printf(m, "Serial\t\t: %08x%08x\n",
+ 		   system_serial_high, system_serial_low);
++#endif
+ 
+ 	return 0;
+ }
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/ep93xx-regs.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/ep93xx-regs.h	2007-09-02 23:06:45.000000000 +0200
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/ep93xx-regs.h	2007-09-02 23:08:34.000000000 +0200
+@@ -70,6 +70,8 @@
+ #define EP93XX_I2S_BASE			(EP93XX_APB_VIRT_BASE + 0x00020000)
+ 
+ #define EP93XX_SECURITY_BASE		(EP93XX_APB_VIRT_BASE + 0x00030000)
++#define EP93XX_SECURITY_REG(x)		(EP93XX_SECURITY_BASE + (x))
++#define EP93XX_SECURITY_UNIQID		EP93XX_SECURITY_REG(0x2440)
+ 
+ #define EP93XX_GPIO_BASE		(EP93XX_APB_VIRT_BASE + 0x00040000)
+ #define EP93XX_GPIO_REG(x)		(EP93XX_GPIO_BASE + (x))
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-serial-clocks.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-serial-clocks.diff
new file mode 100644
index 0000000000..9eb2d9de98
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-serial-clocks.diff
@@ -0,0 +1,42 @@
+
+Hackishly enable all UART clocks before uncompressing the kernel,
+so that using ttyAM1 or ttyAM2 as console can work.
+
+Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
+
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/uncompress.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/uncompress.h
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/uncompress.h
+@@ -78,6 +78,23 @@ static void ethernet_reset(void)
+ 
+ 
+ /*
++ * We don't have clock management for the UARTs (amba-pl010)
++ * yet, so hackily enable all UART clocks here for now.
++ */
++#define PHYS_SYSCON_DEVICE_CONFIG	0x80930080
++#define PHYS_SYSCON_SWLOCK		0x809300c0
++
++static void enable_all_uart_clocks(void)
++{
++	unsigned int v;
++
++	v = __raw_readl(PHYS_SYSCON_DEVICE_CONFIG);
++	__raw_writel(0xaa, PHYS_SYSCON_SWLOCK);
++	__raw_writel(v | 0x01140000, PHYS_SYSCON_DEVICE_CONFIG);
++}
++
++
++/*
+  * Some bootloaders don't turn on the UARTBAUD bit, which means that
+  * the UARTs will be running off a divided 7.3728 MHz clock instead of
+  * the 14.7456 MHz peripheral clock when linux boots.
+@@ -126,6 +143,7 @@ static void fix_uart_base(void)
+ static void arch_decomp_setup(void)
+ {
+ 	ethernet_reset();
++	enable_all_uart_clocks();
+ 	fix_uart_base();
+ }
+ 
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-serial-uartbaud.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-serial-uartbaud.diff
new file mode 100644
index 0000000000..7183ab626e
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-serial-uartbaud.diff
@@ -0,0 +1,66 @@
+
+Force UARTBAUD on before uncompressing.
+
+Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
+
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/uncompress.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/uncompress.h
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/uncompress.h
+@@ -77,9 +77,56 @@ static void ethernet_reset(void)
+ }
+ 
+ 
++/*
++ * Some bootloaders don't turn on the UARTBAUD bit, which means that
++ * the UARTs will be running off a divided 7.3728 MHz clock instead of
++ * the 14.7456 MHz peripheral clock when linux boots.
++ *
++ * We detect that condition here and fix it by turning on UARTBAUD, and
++ * then reprogramming the divisors on all enabled UARTs to twice what
++ * they were before we turned UARTBAUD on, to preserve the programmed
++ * baud rate.
++ */
++#define PHYS_SYSCON_CLOCK_CONTROL	0x80930004
++#define SYSCON_CLOCK_UARTBAUD		0x20000000
++#define PHYS_UART1_BASE			0x808c0000
++#define PHYS_UART2_BASE			0x808d0000
++#define PHYS_UART3_BASE			0x808e0000
++
++static void uart_divisor_times_two(unsigned int base)
++{
++	u16 divisor;
++
++	divisor = __raw_readb(base + 0x0c) << 8;
++	divisor |= __raw_readb(base + 0x10);
++	if (divisor) {
++		divisor = (2 * (divisor + 1)) - 1;
++		__raw_writeb(divisor >> 8, base + 0x0c);
++		__raw_writeb(divisor & 0xff, base + 0x10);
++		__raw_writeb(__raw_readb(base + 0x08), base + 0x08);
++	}
++}
++
++static void fix_uart_base(void)
++{
++	unsigned int v;
++
++	v = __raw_readl(PHYS_SYSCON_CLOCK_CONTROL);
++	if ((v & SYSCON_CLOCK_UARTBAUD) == 0) {
++		v |= SYSCON_CLOCK_UARTBAUD;
++		__raw_writel(v, PHYS_SYSCON_CLOCK_CONTROL);
++
++		uart_divisor_times_two(PHYS_UART1_BASE);
++		uart_divisor_times_two(PHYS_UART2_BASE);
++		uart_divisor_times_two(PHYS_UART3_BASE);
++	}
++}
++
++
+ static void arch_decomp_setup(void)
+ {
+ 	ethernet_reset();
++	fix_uart_base();
+ }
+ 
+ #define arch_decomp_wdog()
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-timer-accuracy.diff b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-timer-accuracy.diff
new file mode 100644
index 0000000000..8254153b69
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ep93xx-timer-accuracy.diff
@@ -0,0 +1,59 @@
+
+The ep93xx has a weird timer tick base (983.04 kHz.)  This experimental
+patch tries to increase time of day accuracy by keeping the number of
+ticks until the next jiffy in a fractional value representation.
+
+Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
+
+Index: linux-2.6.22/arch/arm/mach-ep93xx/core.c
+===================================================================
+--- linux-2.6.22.orig/arch/arm/mach-ep93xx/core.c
++++ linux-2.6.22/arch/arm/mach-ep93xx/core.c
+@@ -94,19 +94,32 @@ void __init ep93xx_map_io(void)
+  * track of lost jiffies.
+  */
+ static unsigned int last_jiffy_time;
++static unsigned int next_jiffy_time;
++static unsigned int accumulator;
+ 
+-#define TIMER4_TICKS_PER_JIFFY		((CLOCK_TICK_RATE + (HZ/2)) / HZ)
++#define TIMER4_TICKS_PER_JIFFY		(983040 / HZ)
++#define TIMER4_TICKS_MOD_JIFFY		(983040 % HZ)
++
++static int after_eq(unsigned long a, unsigned long b)
++{
++	return ((signed long)(a - b)) >= 0;
++}
+ 
+ static int ep93xx_timer_interrupt(int irq, void *dev_id)
+ {
+ 	write_seqlock(&xtime_lock);
+ 
+ 	__raw_writel(1, EP93XX_TIMER1_CLEAR);
+-	while ((signed long)
+-		(__raw_readl(EP93XX_TIMER4_VALUE_LOW) - last_jiffy_time)
+-						>= TIMER4_TICKS_PER_JIFFY) {
+-		last_jiffy_time += TIMER4_TICKS_PER_JIFFY;
++	while (after_eq(__raw_readl(EP93XX_TIMER4_VALUE_LOW), next_jiffy_time)) {
+ 		timer_tick();
++
++		last_jiffy_time = next_jiffy_time;
++		next_jiffy_time += TIMER4_TICKS_PER_JIFFY;
++		accumulator += TIMER4_TICKS_MOD_JIFFY;
++		if (accumulator >= HZ) {
++			next_jiffy_time++;
++			accumulator -= HZ;
++		}
+ 	}
+ 
+ 	write_sequnlock(&xtime_lock);
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/timex.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/timex.h
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/timex.h
+@@ -2,4 +2,4 @@
+  * linux/include/asm-arm/arch-ep93xx/timex.h
+  */
+ 
+-#define CLOCK_TICK_RATE		983040
++#define CLOCK_TICK_RATE		(1000 * HZ)
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/series b/packages/linux/linux-2.6.22.6/ts72xx/series
new file mode 100644
index 0000000000..e5455efd3c
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/series
@@ -0,0 +1,12 @@
+ep93xx-gpio-interrupt-debounce.diff
+ep93xx-i2c-bus.diff
+ep93xx-i2c.diff
+ep93xx-leds.diff
+ep93xx-serial-uartbaud.diff
+ep93xx-serial-clocks.diff
+ep93xx-timer-accuracy.diff
+ep93xx-maverick-uniqid.patch
+ts72xx-machine-id-fix.patch
+ts72xx-nfbit-fix.patch
+ts72xx-watchdog.patch 
+ts72xx-use-cpld-reset.patch
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-machine-id-fix.patch b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-machine-id-fix.patch
new file mode 100644
index 0000000000..64c38398db
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-machine-id-fix.patch
@@ -0,0 +1,17 @@
+
+Fix wrong machine ID passed from RedBoot
+
+Signed-off-by: Petr Stetiar <ynezz@true.cz>
+
+Index: linux-2.6.22/arch/arm/kernel/head.S
+===================================================================
+--- linux-2.6.22.orig/arch/arm/kernel/head.S	2007-08-30 00:42:45.000000000 +0200
++++ linux-2.6.22/arch/arm/kernel/head.S	2007-08-30 00:43:13.000000000 +0200
+@@ -82,6 +82,7 @@
+ 	bl	__lookup_processor_type		@ r5=procinfo r9=cpuid
+ 	movs	r10, r5				@ invalid processor (r5=0)?
+ 	beq	__error_p			@ yes, error 'p'
++	ldr	r1, =0x000002a1			@ mach-type = TS-7250
+ 	bl	__lookup_machine_type		@ r5=machinfo
+ 	movs	r8, r5				@ invalid machine (r5=0)?
+ 	beq	__error_a			@ yes, error 'a'
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-nfbit-fix.patch b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-nfbit-fix.patch
new file mode 100644
index 0000000000..eab73154a8
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-nfbit-fix.patch
@@ -0,0 +1,15 @@
+
+Force the nF bit on.  Usually this is set by the bootrom.  If it is not set,
+then the CPU core will run from HCLK instead of FCLK, and performance will
+suffer. If you see BogoMIPS of about 1/4 of your CPU clock, try turning this
+on; your performance should double.
+
+--- linux-2.6.21.4/arch/arm/mm/proc-arm920.S	2007-06-07 23:27:31.000000000 +0200
++++ linux-2.6.21.4-arm/arch/arm/mm/proc-arm920.S	2007-06-08 22:59:48.000000000 +0200
+@@ -395,6 +395,7 @@
+ 	mrc	p15, 0, r0, c1, c0		@ get control register v4
+ 	bic	r0, r0, r5
+ 	orr	r0, r0, r6
++	orr     r0, r0, #0x40000000
+ 	mov	pc, lr
+ 	.size	__arm920_setup, . - __arm920_setup
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-use-cpld-reset.patch b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-use-cpld-reset.patch
new file mode 100644
index 0000000000..9744a67653
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-use-cpld-reset.patch
@@ -0,0 +1,41 @@
+
+Use CPLD watchdog to reset the machine instead of buggy ep93xx one, which
+sometimes get stuck...
+
+Signed-off-by: Petr Stetiar <ynezz@true.cz>
+
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/system.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/system.h	2007-08-30 00:53:47.000000000 +0200
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/system.h	2007-08-30 00:54:28.000000000 +0200
+@@ -3,6 +3,7 @@
+  */
+ 
+ #include <asm/hardware.h>
++#include <asm/mach-types.h>
+ 
+ static inline void arch_idle(void)
+ {
+@@ -15,11 +16,17 @@
+ 
+ 	local_irq_disable();
+ 
+-	devicecfg = __raw_readl(EP93XX_SYSCON_DEVICE_CONFIG);
+-	__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
+-	__raw_writel(devicecfg | 0x80000000, EP93XX_SYSCON_DEVICE_CONFIG);
+-	__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
+-	__raw_writel(devicecfg & ~0x80000000, EP93XX_SYSCON_DEVICE_CONFIG);
++	if (machine_is_ts72xx()) {
++		__raw_writeb(0x5, TS72XX_WATCHDOG_FEED_PHYS_BASE);
++		__raw_writeb(0x1, TS72XX_WATCHDOG_CONTROL_PHYS_BASE);
++	} else {
++		devicecfg = __raw_readl(EP93XX_SYSCON_DEVICE_CONFIG);
++		__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
++		__raw_writel(devicecfg | 0x80000000, EP93XX_SYSCON_DEVICE_CONFIG);
++		__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
++		__raw_writel(devicecfg & ~0x80000000, EP93XX_SYSCON_DEVICE_CONFIG);
++	}
++
+ 
+ 	while (1)
+ 		;
diff --git a/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-watchdog.patch b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-watchdog.patch
new file mode 100644
index 0000000000..aa2cb834f9
--- /dev/null
+++ b/packages/linux/linux-2.6.22.6/ts72xx/ts72xx-watchdog.patch
@@ -0,0 +1,430 @@
+
+TS-72xx watchdog driver
+
+Signed-off-by: Matthieu Crapet <mcrapet@gmail.com>
+
+Index: linux-2.6.22/arch/arm/mach-ep93xx/ts72xx.c
+===================================================================
+--- linux-2.6.22.orig/arch/arm/mach-ep93xx/ts72xx.c	2007-08-30 01:33:00.000000000 +0200
++++ linux-2.6.22/arch/arm/mach-ep93xx/ts72xx.c	2007-08-30 01:33:10.000000000 +0200
+@@ -183,6 +183,26 @@
+ 	.resource	= ts72xx_eth_resource,
+ };
+ 
++static struct resource ts72xx_watchdog_resources[] = {
++	[0] = {
++		.start  = TS72XX_WATCHDOG_CONTROL_PHYS_BASE,
++		.end  = TS72XX_WATCHDOG_CONTROL_PHYS_BASE + 0x0fff,
++		.flags  = IORESOURCE_MEM,
++	},
++	[1] = {
++		.start  = TS72XX_WATCHDOG_FEED_PHYS_BASE,
++		.end  = TS72XX_WATCHDOG_FEED_PHYS_BASE + 0x0fff,
++		.flags  = IORESOURCE_MEM,
++	},
++};
++
++static struct platform_device ts72xx_watchdog_device = {
++	.name   = "ts72xx_wdt",
++	.id   = -1,
++	.num_resources  = ARRAY_SIZE(ts72xx_watchdog_resources),
++	.resource = ts72xx_watchdog_resources,
++};
++
+ static void __init ts72xx_init_machine(void)
+ {
+ 	ep93xx_init_devices();
+@@ -193,6 +213,7 @@
+ 	memcpy(ts72xx_eth_data.dev_addr,
+ 		(void *)(EP93XX_ETHERNET_BASE + 0x50), 6);
+ 	platform_device_register(&ts72xx_eth_device);
++	platform_device_register(&ts72xx_watchdog_device);
+ }
+ 
+ MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
+Index: linux-2.6.22/drivers/char/watchdog/Kconfig
+===================================================================
+--- linux-2.6.22.orig/drivers/char/watchdog/Kconfig	2007-08-30 01:33:00.000000000 +0200
++++ linux-2.6.22/drivers/char/watchdog/Kconfig	2007-08-30 01:33:10.000000000 +0200
+@@ -187,6 +187,18 @@
+ 
+ 	  Say N if you are unsure.
+ 
++config TS72XX_WATCHDOG
++	tristate "TS-72xx Watchdog"
++	depends on WATCHDOG && ARCH_EP93XX && MACH_TS72XX
++	help
++	  Say Y here if to include support for the CPLD watchdog
++	  included on Technologic Systems SBC.
++
++	  NOTE: timeout value is given in milliseconds, not in seconds.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called ts72xx_wdt.
++
+ # X86 (i386 + ia64 + x86_64) Architecture
+ 
+ config ACQUIRE_WDT
+Index: linux-2.6.22/drivers/char/watchdog/Makefile
+===================================================================
+--- linux-2.6.22.orig/drivers/char/watchdog/Makefile	2007-08-30 01:33:00.000000000 +0200
++++ linux-2.6.22/drivers/char/watchdog/Makefile	2007-08-30 01:33:10.000000000 +0200
+@@ -34,6 +34,7 @@
+ obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
+ obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o
+ obj-$(CONFIG_EP93XX_WATCHDOG) += ep93xx_wdt.o
++obj-$(CONFIG_TS72XX_WATCHDOG) += ts72xx_wdt.o
+ obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o
+ 
+ # X86 (i386 + ia64 + x86_64) Architecture
+Index: linux-2.6.22/drivers/char/watchdog/ts72xx_wdt.c
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/char/watchdog/ts72xx_wdt.c	2007-08-30 01:33:10.000000000 +0200
+@@ -0,0 +1,332 @@
++/*
++ *	TS-72xx Watchdog Driver for Technologic Systems boards.
++ *
++ *  Based on ep93xx_wdt.c by Lehtiniemi <rayl@mail.com> &
++ *      Alessandro Zummo <a.zummo@towertech.it>
++ *  and ib700wdt.c by Charles Howes <chowes@vsol.net>
++ *  and mpc83xx_wdt.c by Dave Updegraff <dave@cray.org> &
++ *      Kumar Gala <galak@kernel.crashing.org>
++ *
++ *	(c) Copyright 2006  Matthieu Crapet <mcrapet@gmail.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.
++ *
++ * This driver only deals with native timeout provided by CPLD :
++ * 1/4s, 1/2s, 1s, 2s, 4s and 8s. No external timer is used.
++ * Notice that we must ping before modifying the control register.
++ */
++
++#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/platform_device.h>
++#include <linux/init.h>
++#include <linux/watchdog.h>
++#include <asm/io.h>
++#include <asm/uaccess.h>
++#include <asm/system.h>
++#include <asm/mach-types.h>
++
++#define WATCHDOG_VERSION "0.2"
++#define PFX "ts72xx_wdt: "
++
++#define WATCHDOG_TIMEOUT 8000 /* 8 seconds */
++#define WDT_IN_USE      0
++#define WDT_OK_TO_CLOSE 1
++
++static unsigned long ts72xx_wdt_status;
++static unsigned char ts72xx_wdt_cpld_value = 0x7;
++static int nowayout = WATCHDOG_NOWAYOUT;
++static int timeout = WATCHDOG_TIMEOUT;
++
++static int ts72xx_wdt_times[12] = {
++	6000, 3000, 1500, 750, 275, 0,
++	8000, 4000, 2000, 1000, 500, 250
++};
++
++static void __iomem *control_register;
++static void __iomem *feed_register;
++
++
++/*
++ *	Kernel methods.
++ */
++
++static inline void ts72xx_wdt_ping(void)
++{
++	__raw_writew(0x05, feed_register);
++}
++
++static inline void ts72xx_wdt_enable(void)
++{
++	__raw_writew(0x05, feed_register);
++	__raw_writew(ts72xx_wdt_cpld_value, control_register);
++}
++
++static inline void ts72xx_wdt_disable(void)
++{
++	__raw_writew(0x05, feed_register);
++	__raw_writew(0, control_register);
++}
++
++static inline void ts72xx_parse_timeout(int value)
++{
++	unsigned char cpld_value = 0x7;
++	int i;
++
++	if ((value > 8000) || (value < 250)) {
++		timeout = WATCHDOG_TIMEOUT;
++		printk(KERN_INFO PFX "Timeout value out of range, set to %d\n", timeout);
++	} else {
++		for (i = 0; i < 6; i++) {
++			if (value >= ts72xx_wdt_times[i]) {
++				timeout = ts72xx_wdt_times[i+6];
++
++				if (value != timeout)
++					printk(KERN_INFO PFX "Timeout value rounded to %d\n", timeout);
++
++				if (i >= 3) /* cpld_value can't be 4 */
++					i++;
++
++				cpld_value = 7 - i;
++				break;
++			}
++		}
++	}
++
++	ts72xx_wdt_cpld_value = cpld_value;
++}
++
++static ssize_t ts72xx_wdt_write(struct file *file, const char __user *buf,
++				 size_t count, loff_t *ppos)
++{
++	/* Can't seek (pwrite) on this device */
++	if (*ppos != file->f_pos)
++		return -ESPIPE;
++
++	if (count) {
++		if (!nowayout) {
++			size_t i;
++
++			clear_bit(WDT_OK_TO_CLOSE, &ts72xx_wdt_status);
++
++			for (i = 0; i != count; i++) {
++				char c;
++
++				if (get_user(c, buf + i))
++					return -EFAULT;
++
++				if (c == 'V')
++					set_bit(WDT_OK_TO_CLOSE, &ts72xx_wdt_status);
++				else
++					clear_bit(WDT_OK_TO_CLOSE, &ts72xx_wdt_status);
++			}
++		}
++		ts72xx_wdt_ping();
++	}
++
++	return count;
++}
++
++static int ts72xx_wdt_ioctl(struct inode *inode, struct file *file,
++			     unsigned int cmd, unsigned long arg)
++{
++	int new_margin;
++	int ret = -ENOIOCTLCMD;
++
++	static struct watchdog_info ident = {
++		.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
++		.firmware_version = 1,
++		.identity = "TS-72xx Watchdog",
++	};
++
++	switch (cmd) {
++		case WDIOC_GETSUPPORT:
++			ret = copy_to_user((struct watchdog_info __user *)arg, &ident,
++			sizeof(ident)) ? -EFAULT : 0;
++			break;
++
++		case WDIOC_GETSTATUS:
++		case WDIOC_GETBOOTSTATUS:
++			ret = put_user(0, (int __user *)arg);
++			break;
++
++		case WDIOC_KEEPALIVE:
++			ts72xx_wdt_ping();
++			ret = 0;
++			break;
++
++		case WDIOC_SETTIMEOUT:
++			if (get_user(new_margin, (int __user *)arg))
++				return -EFAULT;
++
++			ts72xx_parse_timeout(new_margin);
++			ts72xx_wdt_enable();
++			/* Fall */
++
++		case WDIOC_GETTIMEOUT:
++			ret = put_user(timeout, (int __user *)arg);
++			break;
++	}
++
++	return ret;
++}
++
++static int ts72xx_wdt_open(struct inode *inode, struct file *file)
++{
++	if (test_and_set_bit(WDT_IN_USE, &ts72xx_wdt_status))
++		return -EBUSY;
++
++	if (nowayout) {
++		__module_get(THIS_MODULE);
++	}
++
++	ts72xx_wdt_enable();
++	ts72xx_wdt_ping();
++
++	return nonseekable_open(inode, file);
++}
++
++static int ts72xx_wdt_close(struct inode *inode, struct file *file)
++{
++	if (test_bit(WDT_OK_TO_CLOSE, &ts72xx_wdt_status))
++		ts72xx_wdt_disable();
++	else
++		printk(KERN_CRIT PFX "Device file closed unexpectedly. "
++		       "Will not stop the WDT!\n");
++
++	clear_bit(WDT_IN_USE, &ts72xx_wdt_status);
++
++	return 0;
++}
++
++/*
++ *	Kernel Interfaces
++ */
++
++static struct file_operations ts72xx_wdt_fops = {
++	.owner		= THIS_MODULE,
++	.llseek		= no_llseek,
++	.write		= ts72xx_wdt_write,
++	.ioctl		= ts72xx_wdt_ioctl,
++	.open		= ts72xx_wdt_open,
++	.release	= ts72xx_wdt_close,
++};
++
++static struct miscdevice ts72xx_wdt_miscdev = {
++	.minor = WATCHDOG_MINOR,
++	.name = "watchdog",
++	.fops = &ts72xx_wdt_fops,
++};
++
++static void ts72xx_wdt_shutdown(struct platform_device *dev)
++{
++	ts72xx_wdt_disable();
++}
++
++static int __devinit ts72xx_wdt_probe(struct platform_device *dev)
++{
++	struct resource *r;
++	int ret;
++
++	if (!machine_is_ts72xx())
++		return -ENODEV;
++
++	r = platform_get_resource(dev, IORESOURCE_MEM, 0);
++
++	if (!r) {
++		ret = -ENODEV;
++		goto err_out;
++	}
++
++	control_register = ioremap(r->start, r->end - r->start + 1);
++
++	if (control_register == NULL) {
++		ret = -ENOMEM;
++		goto err_out;
++	}
++
++	r = platform_get_resource(dev, IORESOURCE_MEM, 1);
++
++	if (!r) {
++		ret = -ENODEV;
++		goto err_unmap1;
++	}
++
++	feed_register = ioremap(r->start, r->end - r->start + 1);
++
++	if (feed_register == NULL) {
++		ret = -ENOMEM;
++		goto err_unmap1;
++	}
++
++	ret = misc_register(&ts72xx_wdt_miscdev);
++	if (ret) {
++		printk(KERN_ERR PFX "cannot register miscdev on minor=%d "
++		       "(err=%d), ep93xx_watchdog already loaded?!\n", WATCHDOG_MINOR, ret);
++		goto err_unmap2;
++	}
++
++	printk(KERN_INFO PFX "TS-72xx watchdog driver, v%s\n", WATCHDOG_VERSION);
++	ts72xx_parse_timeout(timeout);
++
++	return 0;
++
++err_unmap2:
++	iounmap(feed_register);
++err_unmap1:
++	iounmap(control_register);
++err_out:
++	return ret;
++}
++
++static int __devexit ts72xx_wdt_remove(struct platform_device *dev)
++{
++	misc_deregister(&ts72xx_wdt_miscdev);
++	iounmap(feed_register);
++	iounmap(control_register);
++
++	return 0;
++}
++
++static struct platform_driver ts72xx_wdt_driver = {
++	.probe		= ts72xx_wdt_probe,
++	.remove		= __devexit_p(ts72xx_wdt_remove),
++	.shutdown	= ts72xx_wdt_shutdown,
++	.driver	= {
++		.owner	= THIS_MODULE,
++		.name	= "ts72xx_wdt",
++	},
++};
++
++static int __init ts72xx_wdt_init(void)
++{
++	return platform_driver_register(&ts72xx_wdt_driver);
++}
++
++static void __exit ts72xx_wdt_exit(void)
++{
++	platform_driver_unregister(&ts72xx_wdt_driver);
++}
++
++module_init(ts72xx_wdt_init);
++module_exit(ts72xx_wdt_exit);
++
++#ifdef CONFIG_WATCHDOG_NOWAYOUT
++module_param(nowayout, int, 0);
++MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)");
++#endif
++
++module_param(timeout, int, 0);
++MODULE_PARM_DESC(timeout,"Watchdog timeout in milliseconds (250..8000, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")");
++
++MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>");
++MODULE_DESCRIPTION("TS-72xx watchdog driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+Index: linux-2.6.22/include/asm-arm/arch-ep93xx/ts72xx.h
+===================================================================
+--- linux-2.6.22.orig/include/asm-arm/arch-ep93xx/ts72xx.h	2007-08-30 01:33:25.000000000 +0200
++++ linux-2.6.22/include/asm-arm/arch-ep93xx/ts72xx.h	2007-08-30 01:34:14.000000000 +0200
+@@ -68,6 +68,9 @@
+ #define TS72XX_RTC_DATA_PHYS_BASE	0x11700000
+ #define TS72XX_RTC_DATA_SIZE		0x00001000
+ 
++#define TS72XX_WATCHDOG_CONTROL_PHYS_BASE	0x23800000
++#define TS72XX_WATCHDOG_FEED_PHYS_BASE		0x23c00000
++
+ #ifndef __ASSEMBLY__
+ #include <asm/io.h>
+