diff options
Diffstat (limited to 'packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx')
14 files changed, 1321 insertions, 0 deletions
diff --git a/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/.mtn2git_empty b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/.mtn2git_empty new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/.mtn2git_empty diff --git a/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-gpio-interrupt-debounce.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-gpio-interrupt-debounce.diff new file mode 100644 index 0000000000..dbd2856e87 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/arch/arm/mach-ep93xx/core.c +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/mach-ep93xx/core.c 2007-09-04 02:22:19.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/mach-ep93xx/core.c 2007-09-04 02:28:19.000000000 +0200 +@@ -154,6 +154,7 @@ + *************************************************************************/ + 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 @@ + { + 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 @@ + } 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-2.6.23-rc5/include/asm-arm/arch-ep93xx/ep93xx-regs.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/ep93xx-regs.h 2007-09-04 02:22:19.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/ep93xx-regs.h 2007-09-04 02:28:19.000000000 +0200 +@@ -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-2.6.23-rc5/include/linux/irq.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/linux/irq.h 2007-09-04 02:24:58.000000000 +0200 ++++ linux-2.6.23-rc5/include/linux/irq.h 2007-09-04 02:25:01.000000000 +0200 +@@ -44,6 +44,7 @@ + #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+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff new file mode 100644 index 0000000000..efdbf42a45 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/drivers/i2c/busses/Kconfig +=================================================================== +--- linux-2.6.23-rc5.orig/drivers/i2c/busses/Kconfig 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/drivers/i2c/busses/Kconfig 2007-09-04 02:26:20.000000000 +0200 +@@ -654,4 +654,16 @@ + This driver can also be built as module. If so, the module + will be called i2c-pmcmsp. + ++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-2.6.23-rc5/drivers/i2c/busses/Makefile +=================================================================== +--- linux-2.6.23-rc5.orig/drivers/i2c/busses/Makefile 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/drivers/i2c/busses/Makefile 2007-09-04 02:26:20.000000000 +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-2.6.23-rc5/drivers/i2c/busses/i2c-ep93xx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23-rc5/drivers/i2c/busses/i2c-ep93xx.c 2007-09-04 02:26:20.000000000 +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-2.6.23-rc5/include/asm-arm/arch-ep93xx/platform.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/platform.h 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/platform.h 2007-09-04 02:28:19.000000000 +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+2.6.23-rc5/ts72xx/ep93xx-i2c.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c.diff new file mode 100644 index 0000000000..bf4622b1db --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/arch/arm/mach-ep93xx/core.c +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/mach-ep93xx/core.c 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/mach-ep93xx/core.c 2007-09-04 02:28:12.000000000 +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-2.6.23-rc5/include/asm-arm/arch-ep93xx/ep93xx-regs.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/ep93xx-regs.h 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/ep93xx-regs.h 2007-09-04 02:28:10.000000000 +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-2.6.23-rc5/include/asm-arm/arch-ep93xx/platform.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/platform.h 2007-09-04 02:26:20.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/platform.h 2007-09-04 02:26:38.000000000 +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+2.6.23-rc5/ts72xx/ep93xx-leds.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-leds.diff new file mode 100644 index 0000000000..e158593f28 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-leds.diff @@ -0,0 +1,181 @@ + +EP93xx leds driver + +Signed-off-by: Petr Stetiar <ynezz@true.cz> + +Index: linux-2.6.23-rc5/arch/arm/mach-ep93xx/core.c +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/mach-ep93xx/core.c 2007-09-04 02:40:19.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/mach-ep93xx/core.c 2007-09-04 02:40:25.000000000 +0200 +@@ -568,6 +568,12 @@ + } + + ++static struct platform_device ep93xx_led_device = { ++ .name = "ep93xx-led", ++ .id = -1, ++}; ++ ++ + void __init ep93xx_init_devices(void) + { + unsigned int v; +@@ -596,4 +602,5 @@ + 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-2.6.23-rc5/drivers/leds/Kconfig +=================================================================== +--- linux-2.6.23-rc5.orig/drivers/leds/Kconfig 2007-09-04 02:40:19.000000000 +0200 ++++ linux-2.6.23-rc5/drivers/leds/Kconfig 2007-09-04 02:40:25.000000000 +0200 +@@ -101,6 +101,12 @@ + outputs. To be useful the particular board must have LEDs + and they must be connected to the GPIO lines. + ++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-2.6.23-rc5/drivers/leds/Makefile +=================================================================== +--- linux-2.6.23-rc5.orig/drivers/leds/Makefile 2007-09-04 02:40:19.000000000 +0200 ++++ linux-2.6.23-rc5/drivers/leds/Makefile 2007-09-04 02:40:25.000000000 +0200 +@@ -16,6 +16,7 @@ + obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o + obj-$(CONFIG_LEDS_H1940) += leds-h1940.o + obj-$(CONFIG_LEDS_COBALT) += leds-cobalt.o ++obj-$(CONFIG_LEDS_EP93XX) += leds-ep93xx.o + obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o + + # LED Triggers +Index: linux-2.6.23-rc5/drivers/leds/leds-ep93xx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23-rc5/drivers/leds/leds-ep93xx.c 2007-09-04 02:40:25.000000000 +0200 +@@ -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+2.6.23-rc5/ts72xx/ep93xx-maverick-uniqid.patch b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-maverick-uniqid.patch new file mode 100644 index 0000000000..0bc8190464 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/arch/arm/kernel/setup.c +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/kernel/setup.c 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/kernel/setup.c 2007-09-04 02:26:49.000000000 +0200 +@@ -964,8 +964,15 @@ + + 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-2.6.23-rc5/include/asm-arm/arch-ep93xx/ep93xx-regs.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/ep93xx-regs.h 2007-09-04 02:26:38.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/ep93xx-regs.h 2007-09-04 02:26:49.000000000 +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+2.6.23-rc5/ts72xx/ep93xx-serial-clocks.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-serial-clocks.diff new file mode 100644 index 0000000000..86b14894b6 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/include/asm-arm/arch-ep93xx/uncompress.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/uncompress.h 2007-09-04 02:26:42.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/uncompress.h 2007-09-04 02:26:47.000000000 +0200 +@@ -78,6 +78,23 @@ + + + /* ++ * 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 arch_decomp_setup(void) + { + ethernet_reset(); ++ enable_all_uart_clocks(); + fix_uart_base(); + } + diff --git a/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-serial-uartbaud.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-serial-uartbaud.diff new file mode 100644 index 0000000000..9cfaacd103 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-serial-uartbaud.diff @@ -0,0 +1,66 @@ + +Force UARTBAUD on before uncompressing. + +Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> + +Index: linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/uncompress.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/uncompress.h 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/uncompress.h 2007-09-04 02:28:14.000000000 +0200 +@@ -77,9 +77,56 @@ + } + + ++/* ++ * 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+2.6.23-rc5/ts72xx/ep93xx-timer-accuracy.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-timer-accuracy.diff new file mode 100644 index 0000000000..8a6de2e7da --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/arch/arm/mach-ep93xx/core.c +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/mach-ep93xx/core.c 2007-09-04 02:26:38.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/mach-ep93xx/core.c 2007-09-04 02:26:48.000000000 +0200 +@@ -94,19 +94,32 @@ + * 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-2.6.23-rc5/include/asm-arm/arch-ep93xx/timex.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/timex.h 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/timex.h 2007-09-04 02:26:48.000000000 +0200 +@@ -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+2.6.23-rc5/ts72xx/series b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/series new file mode 100644 index 0000000000..e5455efd3c --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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+2.6.23-rc5/ts72xx/ts72xx-machine-id-fix.patch b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-machine-id-fix.patch new file mode 100644 index 0000000000..47a07e64e1 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/arch/arm/kernel/head.S +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/kernel/head.S 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/kernel/head.S 2007-09-04 02:26:57.000000000 +0200 +@@ -86,6 +86,7 @@ + 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+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch new file mode 100644 index 0000000000..bed3de37e9 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch @@ -0,0 +1,18 @@ + +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. + +Index: linux-2.6.23-rc5/arch/arm/mm/proc-arm920.S +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/mm/proc-arm920.S 2007-09-04 02:25:36.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/mm/proc-arm920.S 2007-09-04 02:27:02.000000000 +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+2.6.23-rc5/ts72xx/ts72xx-use-cpld-reset.patch b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-use-cpld-reset.patch new file mode 100644 index 0000000000..681622a9ae --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/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-2.6.23-rc5/include/asm-arm/arch-ep93xx/system.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/system.h 2007-09-04 02:29:35.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/system.h 2007-09-04 02:31:52.000000000 +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+2.6.23-rc5/ts72xx/ts72xx-watchdog.patch b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-watchdog.patch new file mode 100644 index 0000000000..b406d1db77 --- /dev/null +++ b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-watchdog.patch @@ -0,0 +1,430 @@ + +TS-72xx watchdog driver + +Signed-off-by: Matthieu Crapet <mcrapet@gmail.com> + +Index: linux-2.6.23-rc5/arch/arm/mach-ep93xx/ts72xx.c +=================================================================== +--- linux-2.6.23-rc5.orig/arch/arm/mach-ep93xx/ts72xx.c 2007-09-04 02:25:35.000000000 +0200 ++++ linux-2.6.23-rc5/arch/arm/mach-ep93xx/ts72xx.c 2007-09-04 02:27:06.000000000 +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-2.6.23-rc5/drivers/char/watchdog/Kconfig +=================================================================== +--- linux-2.6.23-rc5.orig/drivers/char/watchdog/Kconfig 2007-09-04 02:25:35.000000000 +0200 ++++ linux-2.6.23-rc5/drivers/char/watchdog/Kconfig 2007-09-04 02:27:06.000000000 +0200 +@@ -247,6 +247,18 @@ + + # H8300 Architecture + ++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-2.6.23-rc5/drivers/char/watchdog/Makefile +=================================================================== +--- linux-2.6.23-rc5.orig/drivers/char/watchdog/Makefile 2007-09-04 02:25:35.000000000 +0200 ++++ linux-2.6.23-rc5/drivers/char/watchdog/Makefile 2007-09-04 02:27:06.000000000 +0200 +@@ -36,6 +36,7 @@ + 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-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o + obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o + obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o +Index: linux-2.6.23-rc5/drivers/char/watchdog/ts72xx_wdt.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23-rc5/drivers/char/watchdog/ts72xx_wdt.c 2007-09-04 02:27:06.000000000 +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-2.6.23-rc5/include/asm-arm/arch-ep93xx/ts72xx.h +=================================================================== +--- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/ts72xx.h 2007-09-04 02:25:35.000000000 +0200 ++++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/ts72xx.h 2007-09-04 02:27:06.000000000 +0200 +@@ -69,6 +69,9 @@ + #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> + |