--- a/arch/x86/platform/geode/alix.c 2011-08-13 15:51:30.892956346 -0600 +++ b/arch/x86/platform/geode/alix.c 2011-08-13 16:14:58.082329961 -0600 @@ -6,6 +6,7 @@ * * Copyright (C) 2008 Constantin Baranov * Copyright (C) 2011 Ed Wildgoose + * and Philip Prindeville * * TODO: There are large similarities with leds-net5501.c * by Alessandro Zummo @@ -24,14 +25,48 @@ #include #include #include +#include +#include #include +#define BIOS_SIGNATURE_TINYBIOS 0x000f0000 +#define BIOS_SIGNATURE_COREBOOT 0x00000050 +#define BIOS_REGION_SIZE 0x00010000 + +static int model = 0; + static int force = 0; module_param(force, bool, 0444); /* FIXME: Award bios is not automatically detected as Alix platform */ MODULE_PARM_DESC(force, "Force detection as ALIX.2/ALIX.3 platform"); +static struct gpio_keys_button alix_gpio_buttons[] = { + { + .code = KEY_RESTART, + .gpio = 24, + .active_low = 1, + .desc = "Reset button", + .type = EV_KEY, + .wakeup = 0, + .debounce_interval = 100, + .can_disable = 0, + } +}; +static struct gpio_keys_platform_data alix_buttons_data = { + .buttons = alix_gpio_buttons, + .nbuttons = ARRAY_SIZE(alix_gpio_buttons), + .poll_interval = 20, +}; + +static struct platform_device alix_buttons_dev = { + .name = "gpio-keys-polled", + .id = 1, + .dev = { + .platform_data = &alix_buttons_data, + } +}; + static struct gpio_led alix_leds[] = { { .name = "alix:1", @@ -64,17 +98,22 @@ .dev.platform_data = &alix_leds_data, }; +static struct __initdata platform_device *alix_devs[] = { + &alix_buttons_dev, + &alix_leds_dev, +}; + static void __init register_alix(void) { /* Setup LED control through leds-gpio driver */ - platform_device_register(&alix_leds_dev); + platform_add_devices(alix_devs, ARRAY_SIZE(alix_devs)); } static int __init alix_present(unsigned long bios_phys, const char *alix_sig, size_t alix_sig_len) { - const size_t bios_len = 0x00010000; + const size_t bios_len = BIOS_REGION_SIZE; const char *bios_virt; const char *scan_end; const char *p; @@ -109,7 +148,9 @@ *a = '\0'; tail = p + alix_sig_len; - if ((tail[0] == '2' || tail[0] == '3')) { + if ((tail[0] == '2' || tail[0] == '3' || tail[0] == '6')) { + model = tail[0] - '0'; + printk(KERN_INFO "%s: system is recognized as \"%s\"\n", KBUILD_MODNAME, name); @@ -128,8 +169,8 @@ if (!is_geode()) return 0; - if (alix_present(0xf0000, tinybios_sig, sizeof(tinybios_sig) - 1) || - alix_present(0x500, coreboot_sig, sizeof(coreboot_sig) - 1)) + if (alix_present(BIOS_SIGNATURE_TINYBIOS, tinybios_sig, sizeof(tinybios_sig) - 1) || + alix_present(BIOS_SIGNATURE_COREBOOT, coreboot_sig, sizeof(coreboot_sig) - 1)) register_alix(); return 0;