diff options
Diffstat (limited to 'target/linux/x86/patches-3.3/002-geos_platform.patch')
| -rw-r--r-- | target/linux/x86/patches-3.3/002-geos_platform.patch | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/target/linux/x86/patches-3.3/002-geos_platform.patch b/target/linux/x86/patches-3.3/002-geos_platform.patch new file mode 100644 index 000000000..50d8bb289 --- /dev/null +++ b/target/linux/x86/patches-3.3/002-geos_platform.patch @@ -0,0 +1,178 @@ +From 31bc84d45320dad2392384381ad4d818ab21087a Mon Sep 17 00:00:00 2001 +From: "Philip A. Prindeville" <philipp@redfish-solutions.com> +Date: Wed, 18 Jan 2012 11:15:33 -0700 +Subject: [PATCH 1/1] geos: Platform driver for Geos and Geos2 single-board + computers. + +Trivial platform driver for Traverse Technologies Geos and Geos2 +single-board computers. Uses SMBIOS to identify platform. +Based on progressive revisions of the leds-net5501 driver that +was rewritten by Ed Wildgoose as a platform driver. + +Supports GPIO-based LEDs (3) and 1 polled button which is +typically used for a soft reset. + +Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com> +Reviewed-by: Ed Wildgoose <ed@wildgooses.com> +Acked-by: Andres Salomon <dilinger@queued.net> +Cc: Richard Purdie <rpurdie@rpsys.net> +Cc: Andrew Morton <akpm@linux-foundation.org> +--- + arch/x86/Kconfig | 7 ++ + arch/x86/platform/geode/Makefile | 1 + + arch/x86/platform/geode/geos.c | 128 ++++++++++++++++++++++++++++++++++++++ + 3 files changed, 136 insertions(+), 0 deletions(-) + create mode 100644 arch/x86/platform/geode/geos.c + +--- a/arch/x86/Kconfig ++++ b/arch/x86/Kconfig +@@ -2133,6 +2133,13 @@ config ALIX + + Note: You have to set alix.force=1 for boards with Award BIOS. + ++config GEOS ++ bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)" ++ select GPIOLIB ++ depends on DMI ++ ---help--- ++ This option enables system support for the Traverse Technologies GEOS. ++ + endif # X86_32 + + config AMD_NB +--- a/arch/x86/platform/geode/Makefile ++++ b/arch/x86/platform/geode/Makefile +@@ -1 +1,2 @@ + obj-$(CONFIG_ALIX) += alix.o ++obj-$(CONFIG_GEOS) += geos.o +--- /dev/null ++++ b/arch/x86/platform/geode/geos.c +@@ -0,0 +1,128 @@ ++/* ++ * System Specific setup for Traverse Technologies GEOS. ++ * At the moment this means setup of GPIO control of LEDs. ++ * ++ * Copyright (C) 2008 Constantin Baranov <const@mimas.ru> ++ * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com> ++ * and Philip Prindeville <philipp@redfish-solutions.com> ++ * ++ * TODO: There are large similarities with leds-net5501.c ++ * by Alessandro Zummo <a.zummo@towertech.it> ++ * In the future leds-net5501.c should be migrated over to platform ++ * ++ * 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/io.h> ++#include <linux/string.h> ++#include <linux/module.h> ++#include <linux/leds.h> ++#include <linux/platform_device.h> ++#include <linux/gpio.h> ++#include <linux/input.h> ++#include <linux/gpio_keys.h> ++#include <linux/dmi.h> ++ ++#include <asm/geode.h> ++ ++static struct gpio_keys_button geos_gpio_buttons[] = { ++ { ++ .code = KEY_RESTART, ++ .gpio = 3, ++ .active_low = 1, ++ .desc = "Reset button", ++ .type = EV_KEY, ++ .wakeup = 0, ++ .debounce_interval = 100, ++ .can_disable = 0, ++ } ++}; ++static struct gpio_keys_platform_data geos_buttons_data = { ++ .buttons = geos_gpio_buttons, ++ .nbuttons = ARRAY_SIZE(geos_gpio_buttons), ++ .poll_interval = 20, ++}; ++ ++static struct platform_device geos_buttons_dev = { ++ .name = "gpio-keys-polled", ++ .id = 1, ++ .dev = { ++ .platform_data = &geos_buttons_data, ++ } ++}; ++ ++static struct gpio_led geos_leds[] = { ++ { ++ .name = "geos:1", ++ .gpio = 6, ++ .default_trigger = "default-on", ++ .active_low = 1, ++ }, ++ { ++ .name = "geos:2", ++ .gpio = 25, ++ .default_trigger = "default-off", ++ .active_low = 1, ++ }, ++ { ++ .name = "geos:3", ++ .gpio = 27, ++ .default_trigger = "default-off", ++ .active_low = 1, ++ }, ++}; ++ ++static struct gpio_led_platform_data geos_leds_data = { ++ .num_leds = ARRAY_SIZE(geos_leds), ++ .leds = geos_leds, ++}; ++ ++static struct platform_device geos_leds_dev = { ++ .name = "leds-gpio", ++ .id = -1, ++ .dev.platform_data = &geos_leds_data, ++}; ++ ++static struct __initdata platform_device *geos_devs[] = { ++ &geos_buttons_dev, ++ &geos_leds_dev, ++}; ++ ++static void __init register_geos(void) ++{ ++ /* Setup LED control through leds-gpio driver */ ++ platform_add_devices(geos_devs, ARRAY_SIZE(geos_devs)); ++} ++ ++static int __init geos_init(void) ++{ ++ const char *vendor, *product; ++ ++ if (!is_geode()) ++ return 0; ++ ++ vendor = dmi_get_system_info(DMI_SYS_VENDOR); ++ if (!vendor || strcmp(vendor, "Traverse Technologies")) ++ return 0; ++ ++ product = dmi_get_system_info(DMI_PRODUCT_NAME); ++ if (!product || strcmp(product, "Geos")) ++ return 0; ++ ++ printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n", ++ KBUILD_MODNAME, vendor, product); ++ ++ register_geos(); ++ ++ return 0; ++} ++ ++module_init(geos_init); ++ ++MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>"); ++MODULE_DESCRIPTION("Traverse Technologies Geos System Setup"); ++MODULE_LICENSE("GPL"); |