9a57095bd2
This patch adds a new mainboard Google/Elm as a derivative of Google/Oak, using the same code sharing technique for derivative boards that was pioneered with Google/Veyron*. For now, there are no firmware-relevant fundamental differences between the two boards. In addition, introduce a board-specific Kconfig for the "board ID adjustment" to represent the fact that the Elm board ID space mirrors the Oak board ID space with an offset of 6, meaning Elm rev0 is equivalent to Oak rev6, and future board changes will be made on both boards to maintain this stride (at least virtually... not all of those revisions will necessarily get built). This should make it much easier to keep the code that handles revision differences somewhat clean. (That's the theory, anyway... whether it will work out remains to be seen.) BRANCH=None BUG=None TEST=Booted Elm image with hardcoded board ID 0 on Oak rev6. Change-Id: If540aea862b746cf4986a74482ae1764c104fb73 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 53cd85c94945ab0bf14cb88a98e66723fc4483de Original-Change-Id: Ib05fc81dc4f4308d99e34fce74c6db8b323785da Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/332276 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14691 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2015 MediaTek Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <boardid.h>
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#include <boot/coreboot_tables.h>
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#include <console/console.h>
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#include <ec/google/chromeec/ec.h>
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#include <ec/google/chromeec/ec_commands.h>
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#include <gpio.h>
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#include <string.h>
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#include <vendorcode/google/chromeos/chromeos.h>
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#include "gpio.h"
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void setup_chromeos_gpios(void)
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{
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gpio_input(WRITE_PROTECT);
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gpio_input_pullup(EC_IN_RW);
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gpio_input_pullup(EC_IRQ);
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gpio_input_pullup(LID);
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gpio_input_pullup(POWER_BUTTON);
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if (board_id() + CONFIG_BOARD_ID_ADJUSTMENT < 5)
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gpio_output(EC_SUSPEND_L, 1);
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}
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void fill_lb_gpios(struct lb_gpios *gpios)
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{
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struct lb_gpio chromeos_gpios[] = {
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{WRITE_PROTECT, ACTIVE_LOW,
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gpio_get(WRITE_PROTECT), "write protect"},
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{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
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{LID, ACTIVE_HIGH, -1, "lid"},
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{POWER_BUTTON, ACTIVE_HIGH, -1, "power"},
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{-1, ACTIVE_HIGH, get_developer_mode_switch(), "developer"},
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{EC_IN_RW, ACTIVE_HIGH, -1, "EC in RW"},
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{EC_IRQ, ACTIVE_LOW, -1, "EC interrupt"},
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};
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lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
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}
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int get_developer_mode_switch(void)
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{
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return 0;
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}
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int get_recovery_mode_switch(void)
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{
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uint32_t ec_events;
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ec_events = google_chromeec_get_events_b();
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return !!(ec_events &
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EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
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}
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int get_write_protect_state(void)
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{
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return !gpio_get(WRITE_PROTECT);
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}
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