diff options
author | Aaron Durbin <adurbin@chromium.org> | 2016-05-10 15:09:44 -0500 |
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committer | Aaron Durbin <adurbin@chromium.org> | 2016-05-13 22:38:53 +0200 |
commit | e065bb43d78be33060316a35685dad30ab70da0f (patch) | |
tree | d7266fa2a9029d5bee87c87d8a0b0de0c11daa86 /src/mainboard/google/reef/chromeos.c | |
parent | fc2e7413b33549814022e2734a68832e9d9be918 (diff) | |
download | coreboot-e065bb43d78be33060316a35685dad30ab70da0f.tar.xz |
mainboard/google: add reef reference board
This adds the initial scaffolding for the reef reference board.
One big thing missing is the GPIO configuration.
Change-Id: I8e2d275df296bb397bb33dbd0c66fc87c82ff10f
Signed-off-by: Aaron Durbni <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14798
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/reef/chromeos.c')
-rw-r--r-- | src/mainboard/google/reef/chromeos.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/chromeos.c b/src/mainboard/google/reef/chromeos.c new file mode 100644 index 0000000000..4de6a70ce9 --- /dev/null +++ b/src/mainboard/google/reef/chromeos.c @@ -0,0 +1,71 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Google Inc. + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <boot/coreboot_tables.h> +#include <ec/google/chromeec/ec.h> +#include <gpio.h> +#include <vendorcode/google/chromeos/chromeos.h> +#include <soc/gpio.h> +#include "ec.h" + +#define GPIO_PCH_WP GPIO_75 +#define GPIO_EC_IN_RW GPIO_41 + +void fill_lb_gpios(struct lb_gpios *gpios) +{ + struct lb_gpio chromeos_gpios[] = { + {-1, ACTIVE_HIGH, get_write_protect_state(), "write protect"}, + {-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"}, + {-1, ACTIVE_HIGH, get_developer_mode_switch(), "developer"}, + {-1, ACTIVE_HIGH, get_lid_switch(), "lid"}, + {-1, ACTIVE_HIGH, 0, "power"}, + {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"}, + {GPIO_EC_IN_RW, ACTIVE_HIGH, + gpio_get(GPIO_EC_IN_RW), "EC in RW"}, + }; + lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); +} + +int get_lid_switch(void) +{ + /* Read lid switch state from the EC. */ + return !!(google_chromeec_get_switches() & EC_SWITCH_LID_OPEN); +} + +int get_developer_mode_switch(void) +{ + /* No physical developer mode switch. It's virtual. */ + return 0; +} + +int get_recovery_mode_switch(void) +{ + /* Check if the EC has posted the keyboard recovery event. */ + return !!(google_chromeec_get_events_b() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); +} + +int clear_recovery_mode_switch(void) +{ + /* Clear keyboard recovery event. */ + return google_chromeec_clear_events_b( + EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); +} + +int get_write_protect_state(void) +{ + /* Read PCH_WP GPIO. */ + return gpio_get(GPIO_PCH_WP); +} |