mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-30 21:44:27 -04:00
d6afe712ab
Based on a patch from Philip Prindeville. While at it, also refresh the patches. SVN-Revision: 30025
179 lines
4.7 KiB
Diff
179 lines
4.7 KiB
Diff
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");
|