From ef79a9a8f3090a48ae694b72a9585fdcd6ba44f8 Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Fri, 23 May 2008 09:03:47 +0000 Subject: add Avila/Cambria latch LED support, thanks Chris SVN-Revision: 11247 --- .../patches-2.6.25/304-gateworks_led_latch.patch | 449 +++++++++++++++++++++ 1 file changed, 449 insertions(+) create mode 100644 target/linux/ixp4xx/patches-2.6.25/304-gateworks_led_latch.patch (limited to 'target/linux/ixp4xx/patches-2.6.25') diff --git a/target/linux/ixp4xx/patches-2.6.25/304-gateworks_led_latch.patch b/target/linux/ixp4xx/patches-2.6.25/304-gateworks_led_latch.patch new file mode 100644 index 0000000000..485ea8e70c --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.25/304-gateworks_led_latch.patch @@ -0,0 +1,449 @@ +diff -ruN trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/drivers/leds/Kconfig linux-2.6.24.5/drivers/leds/Kconfig +--- trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/drivers/leds/Kconfig 2008-04-29 11:29:49.000000000 -0700 ++++ linux-2.6.24.5/drivers/leds/Kconfig 2008-04-29 17:18:47.000000000 -0700 +@@ -120,6 +120,12 @@ + outputs. To be useful the particular board must have LEDs + and they must be connected to the GPIO lines. + ++config LEDS_LATCH ++ tristate "LED Support for Memory Latched LEDs" ++ depends on LEDS_CLASS ++ help ++ -- To Do -- ++ + config LEDS_CM_X270 + tristate "LED Support for the CM-X270 LEDs" + depends on LEDS_CLASS && MACH_ARMCORE +diff -ruN trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/drivers/leds/leds-latch.c linux-2.6.24.5/drivers/leds/leds-latch.c +--- trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/drivers/leds/leds-latch.c 1969-12-31 16:00:00.000000000 -0800 ++++ linux-2.6.24.5/drivers/leds/leds-latch.c 2008-04-30 14:03:21.000000000 -0700 +@@ -0,0 +1,141 @@ ++/* ++ * LEDs driver for Memory Latched Devices ++ * ++ * Copyright (C) 2008 Gateworks Corp. ++ * Chris Lang ++ * ++ * 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 ++#include ++#include ++#include ++#include ++#include ++#include ++ ++static unsigned int mem_keep = 0xFF; ++static spinlock_t mem_lock; ++static unsigned char *iobase; ++ ++struct latch_led_data { ++ struct led_classdev cdev; ++ struct work_struct work; ++ u8 new_level; ++ u8 bit; ++}; ++ ++static void latch_led_set(struct led_classdev *led_cdev, ++ enum led_brightness value) ++{ ++ struct latch_led_data *led_dat = ++ container_of(led_cdev, struct latch_led_data, cdev); ++ ++ spin_lock(mem_lock); ++ ++ if (value == LED_OFF) ++ mem_keep |= (0x1 << led_dat->bit); ++ else ++ mem_keep &= ~(0x1 << led_dat->bit); ++ ++ writeb(mem_keep, iobase); ++ ++ spin_unlock(mem_lock); ++} ++ ++static int latch_led_probe(struct platform_device *pdev) ++{ ++ struct latch_led_platform_data *pdata = pdev->dev.platform_data; ++ struct latch_led *cur_led; ++ struct latch_led_data *leds_data, *led_dat; ++ int i, ret = 0; ++ ++ if (!pdata) ++ return -EBUSY; ++ ++ leds_data = kzalloc(sizeof(struct latch_led_data) * pdata->num_leds, ++ GFP_KERNEL); ++ if (!leds_data) ++ return -ENOMEM; ++ ++ iobase = ioremap_nocache(pdata->mem, 0x1000); ++ writeb(0xFF, iobase); ++ ++ for (i = 0; i < pdata->num_leds; i++) { ++ cur_led = &pdata->leds[i]; ++ led_dat = &leds_data[i]; ++ ++ led_dat->cdev.name = cur_led->name; ++ led_dat->cdev.default_trigger = cur_led->default_trigger; ++ led_dat->cdev.brightness_set = latch_led_set; ++ led_dat->cdev.brightness = LED_OFF; ++ led_dat->bit = cur_led->bit; ++ ++ ret = led_classdev_register(&pdev->dev, &led_dat->cdev); ++ if (ret < 0) { ++ goto err; ++ } ++ } ++ ++ platform_set_drvdata(pdev, leds_data); ++ ++ return 0; ++ ++err: ++ if (i > 0) { ++ for (i = i - 1; i >= 0; i--) { ++ led_classdev_unregister(&leds_data[i].cdev); ++ } ++ } ++ ++ kfree(leds_data); ++ ++ return ret; ++} ++ ++static int __devexit latch_led_remove(struct platform_device *pdev) ++{ ++ int i; ++ struct latch_led_platform_data *pdata = pdev->dev.platform_data; ++ struct latch_led_data *leds_data; ++ ++ leds_data = platform_get_drvdata(pdev); ++ ++ for (i = 0; i < pdata->num_leds; i++) { ++ led_classdev_unregister(&leds_data[i].cdev); ++ cancel_work_sync(&leds_data[i].work); ++ } ++ ++ kfree(leds_data); ++ ++ return 0; ++} ++ ++static struct platform_driver latch_led_driver = { ++ .probe = latch_led_probe, ++ .remove = __devexit_p(latch_led_remove), ++ .driver = { ++ .name = "leds-latch", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init latch_led_init(void) ++{ ++ return platform_driver_register(&latch_led_driver); ++} ++ ++static void __exit latch_led_exit(void) ++{ ++ platform_driver_unregister(&latch_led_driver); ++} ++ ++module_init(latch_led_init); ++module_exit(latch_led_exit); ++ ++MODULE_AUTHOR("Chris Lang "); ++MODULE_DESCRIPTION("Latch LED driver"); ++MODULE_LICENSE("GPL"); +diff -ruN trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/drivers/leds/Makefile linux-2.6.24.5/drivers/leds/Makefile +--- trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/drivers/leds/Makefile 2008-04-29 11:29:49.000000000 -0700 ++++ linux-2.6.24.5/drivers/leds/Makefile 2008-04-29 17:19:02.000000000 -0700 +@@ -21,6 +21,7 @@ + obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o + obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o + obj-$(CONFIG_LEDS_FSG) += leds-fsg.o ++obj-$(CONFIG_LEDS_LATCH) += leds-latch.o + + # LED Triggers + obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o +diff -ruN trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/arch/arm/mach-ixp4xx/avila-setup.c linux-2.6.24.5/arch/arm/mach-ixp4xx/avila-setup.c +--- trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/arch/arm/mach-ixp4xx/avila-setup.c 2008-04-29 11:29:50.000000000 -0700 ++++ linux-2.6.24.5/arch/arm/mach-ixp4xx/avila-setup.c 2008-04-30 15:43:40.000000000 -0700 +@@ -173,7 +173,7 @@ + .dev.platform_data = &avila_npec_data, + }; + +-static struct gpio_led avila_leds[] = { ++static struct gpio_led avila_gpio_leds[] = { + { + .name = "user", /* green led */ + .gpio = AVILA_GW23XX_LED_USER_GPIO, +@@ -181,17 +181,65 @@ + } + }; + +-static struct gpio_led_platform_data avila_leds_data = { ++static struct gpio_led_platform_data avila_gpio_leds_data = { + .num_leds = 1, +- .leds = avila_leds, ++ .leds = avila_gpio_leds, + }; + +-static struct platform_device avila_leds_device = { ++static struct platform_device avila_gpio_leds_device = { + .name = "leds-gpio", + .id = -1, +- .dev.platform_data = &avila_leds_data, ++ .dev.platform_data = &avila_gpio_leds_data, + }; + ++static struct latch_led avila_latch_leds[] = { ++ { ++ .name = "led0", /* green led */ ++ .bit = 0, ++ }, ++ { ++ .name = "led1", /* green led */ ++ .bit = 1, ++ }, ++ { ++ .name = "led2", /* green led */ ++ .bit = 2, ++ }, ++ { ++ .name = "led3", /* green led */ ++ .bit = 3, ++ }, ++ { ++ .name = "led4", /* green led */ ++ .bit = 4, ++ }, ++ { ++ .name = "led5", /* green led */ ++ .bit = 5, ++ }, ++ { ++ .name = "led6", /* green led */ ++ .bit = 6, ++ }, ++ { ++ .name = "led7", /* green led */ ++ .bit = 7, ++ } ++}; ++ ++static struct latch_led_platform_data avila_latch_leds_data = { ++ .num_leds = 8, ++ .leds = avila_latch_leds, ++ .mem = 0x51000000, ++}; ++ ++static struct platform_device avila_latch_leds_device = { ++ .name = "leds-latch", ++ .id = -1, ++ .dev.platform_data = &avila_latch_leds_data, ++}; ++ ++ + static struct resource avila_gpio_resources[] = { + { + .name = "gpio", +@@ -221,7 +269,7 @@ + platform_device_register(&avila_npeb_device); + platform_device_register(&avila_npec_device); + +- platform_device_register(&avila_leds_device); ++ platform_device_register(&avila_gpio_leds_device); + } + + #ifdef CONFIG_SENSORS_EEPROM +@@ -230,7 +278,7 @@ + platform_device_register(&avila_npeb_device); + platform_device_register(&avila_npec_device); + +- platform_device_register(&avila_leds_device); ++ platform_device_register(&avila_gpio_leds_device); + } + + static void __init avila_gw2345_setup(void) +@@ -242,7 +290,7 @@ + avila_npec_data.phy = 5; /* port 5 of the KS8995 switch */ + platform_device_register(&avila_npec_device); + +- platform_device_register(&avila_leds_device); ++ platform_device_register(&avila_gpio_leds_device); + } + + static void __init avila_gw2347_setup(void) +@@ -250,8 +298,8 @@ + avila_npeb_data.quirks |= IXP4XX_ETH_QUIRK_GW23X7; + platform_device_register(&avila_npeb_device); + +- avila_leds[0].gpio = AVILA_GW23X7_LED_USER_GPIO; +- platform_device_register(&avila_leds_device); ++ avila_gpio_leds[0].gpio = AVILA_GW23X7_LED_USER_GPIO; ++ platform_device_register(&avila_gpio_leds_device); + } + + static void __init avila_gw2348_setup(void) +@@ -259,13 +307,13 @@ + platform_device_register(&avila_npeb_device); + platform_device_register(&avila_npec_device); + +- platform_device_register(&avila_leds_device); ++ platform_device_register(&avila_gpio_leds_device); + } + + static void __init avila_gw2353_setup(void) + { + platform_device_register(&avila_npeb_device); +- platform_device_register(&avila_leds_device); ++ platform_device_register(&avila_gpio_leds_device); + } + + static void __init avila_gw2355_setup(void) +@@ -277,7 +325,17 @@ + avila_npec_data.phy = 16; + platform_device_register(&avila_npec_device); + +- platform_device_register(&avila_leds_device); ++ platform_device_register(&avila_gpio_leds_device); ++ ++ *IXP4XX_EXP_CS4 |= 0xbfff3c03; ++ avila_latch_leds[0].name = "RXD"; ++ avila_latch_leds[1].name = "TXD"; ++ avila_latch_leds[2].name = "POL"; ++ avila_latch_leds[3].name = "LNK"; ++ avila_latch_leds[4].name = "ERR"; ++ avila_latch_leds_data.num_leds = 5; ++ avila_latch_leds_data.mem = 0x54000000; ++ platform_device_register(&avila_latch_leds_device); + } + + static void __init avila_gw2357_setup(void) +@@ -285,8 +343,11 @@ + avila_npeb_data.quirks |= IXP4XX_ETH_QUIRK_GW23X7; + platform_device_register(&avila_npeb_device); + +- avila_leds[0].gpio = AVILA_GW23X7_LED_USER_GPIO; +- platform_device_register(&avila_leds_device); ++ avila_gpio_leds[0].gpio = AVILA_GW23X7_LED_USER_GPIO; ++ platform_device_register(&avila_gpio_leds_device); ++ ++ *IXP4XX_EXP_CS1 |= 0xbfff3c03; ++ platform_device_register(&avila_latch_leds_device); + } + + static struct avila_board_info avila_boards[] __initdata = { +diff -ruN trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/arch/arm/mach-ixp4xx/cambria-setup.c linux-2.6.24.5/arch/arm/mach-ixp4xx/cambria-setup.c +--- trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/arch/arm/mach-ixp4xx/cambria-setup.c 2008-04-29 11:29:49.000000000 -0700 ++++ linux-2.6.24.5/arch/arm/mach-ixp4xx/cambria-setup.c 2008-04-30 14:43:57.000000000 -0700 +@@ -25,6 +25,8 @@ + # include + # include + #endif ++ ++#include + + #include + #include +@@ -149,19 +151,52 @@ + } + }; + +-#ifdef CONFIG_LEDS_IXP4XX +-static struct platform_device cambria_leds_pld = { +- .name = "IXP4XX-PLD-LED", +- .id = -1, +- .num_resources = 0, +-}; +- +-static struct platform_device cambria_leds_mem = { +- .name = "IXP4XX-MEM-LED", +- .id = -1, +- .num_resources = 0, ++static struct latch_led cambria_leds[] = { ++ { ++ .name = "ledA", /* green led */ ++ .bit = 0, ++ }, ++ { ++ .name = "ledB", /* green led */ ++ .bit = 1, ++ }, ++ { ++ .name = "ledC", /* green led */ ++ .bit = 2, ++ }, ++ { ++ .name = "ledD", /* green led */ ++ .bit = 3, ++ }, ++ { ++ .name = "ledE", /* green led */ ++ .bit = 4, ++ }, ++ { ++ .name = "ledF", /* green led */ ++ .bit = 5, ++ }, ++ { ++ .name = "ledG", /* green led */ ++ .bit = 6, ++ }, ++ { ++ .name = "ledH", /* green led */ ++ .bit = 7, ++ } ++}; ++ ++static struct latch_led_platform_data cambria_leds_data = { ++ .num_leds = 8, ++ .leds = cambria_leds, ++ .mem = 0x53F40000, ++}; ++ ++static struct platform_device cambria_leds_device = { ++ .name = "leds-latch", ++ .id = -1, ++ .dev.platform_data = &cambria_leds_data, + }; +-#endif + + static struct platform_device *cambria_devices[] __initdata = { + &cambria_i2c_gpio, +@@ -234,6 +269,9 @@ + cambria_pata_data.cs1_cfg = IXP4XX_EXP_CS3; + + platform_device_register(&cambria_pata); ++ ++ *IXP4XX_EXP_CS3 |= 0xbfff3c03; ++ platform_device_register(&cambria_leds_device); + } + + #ifdef CONFIG_MACH_CAMBRIA +--- trunk/build_dir/linux-ixp4xx_generic/linux-2.6.24.5/include/linux/leds.h 2008-04-18 18:53:39.000000000 -0700 ++++ linux-2.6.24.5/include/linux/leds.h 2008-04-29 17:48:56.000000000 -0700 +@@ -123,5 +123,18 @@ + struct gpio_led *leds; + }; + ++/* For the leds-latch driver */ ++struct latch_led { ++ const char *name; ++ char *default_trigger; ++ unsigned bit; ++}; ++ ++struct latch_led_platform_data { ++ int num_leds; ++ u32 mem; ++ struct latch_led *leds; ++}; ++ + + #endif /* __LINUX_LEDS_H_INCLUDED */ -- cgit v1.2.3