diff options
author | David Hendricks <dhendrix@chromium.org> | 2014-12-19 15:34:08 -0800 |
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committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-04-15 16:42:18 +0200 |
commit | 16e32ed2f317c410382ed3c4a37380d4e82cf9bb (patch) | |
tree | a7f9f78db47d180457f520f91f831f179b4341a8 /src/mainboard/google/veyron_brain/chromeos.c | |
parent | 7f00962e70c57b0fc6faf50b8fbf26f95b96e6d2 (diff) |
Brain: Initial mainboard import
This adds a directory with files copied over from Jerry, in addition to
build system related changes (configs/* and Kconfig stuff) necessary
to emerge-veyron_brain coreboot.
The next patch will account for differences between Jerry and Brain.
BUG=none
BRANCH=none
TEST=emerge-veyron_brain coreboot works
Change-Id: Ib0da9caf80f46991b96bcb5756f807237f0902e1
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 9509d6277dae25a78062c1301054a39f704b33fe
Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Change-Id: I972f2623d9b0a43e3ea5312b3c4cd34ab44edc36
Original-Reviewed-on: https://chromium-review.googlesource.com/236989
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/9637
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Diffstat (limited to 'src/mainboard/google/veyron_brain/chromeos.c')
-rw-r--r-- | src/mainboard/google/veyron_brain/chromeos.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/mainboard/google/veyron_brain/chromeos.c b/src/mainboard/google/veyron_brain/chromeos.c new file mode 100644 index 0000000000..069b28b91a --- /dev/null +++ b/src/mainboard/google/veyron_brain/chromeos.c @@ -0,0 +1,131 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Rockchip 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <boot/coreboot_tables.h> +#include <console/console.h> +#include <ec/google/chromeec/ec.h> +#include <ec/google/chromeec/ec_commands.h> +#include <gpio.h> +#include <string.h> +#include <vendorcode/google/chromeos/chromeos.h> + +#include "board.h" + +#define GPIO_WP GPIO(7, A, 6) +#define GPIO_LID GPIO(0, A, 6) +#define GPIO_POWER GPIO(0, A, 5) +#define GPIO_RECOVERY GPIO(0, B, 1) +#define GPIO_ECINRW GPIO(0, A, 7) + +void setup_chromeos_gpios(void) +{ + gpio_input(GPIO_WP); + gpio_input_pullup(GPIO_LID); + gpio_input(GPIO_POWER); + gpio_input_pullup(GPIO_RECOVERY); +} + +void fill_lb_gpios(struct lb_gpios *gpios) +{ + int count = 0; + + /* Write Protect: active low */ + gpios->gpios[count].port = GPIO_WP.raw; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = gpio_get(GPIO_WP); + strncpy((char *)gpios->gpios[count].name, "write protect", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Recovery: active low */ + gpios->gpios[count].port = GPIO_RECOVERY.raw; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = get_recovery_mode_switch(); + strncpy((char *)gpios->gpios[count].name, "recovery", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Lid: active high */ + gpios->gpios[count].port = GPIO_LID.raw; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = -1; + strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH); + count++; + + /* Power:GPIO active high */ + gpios->gpios[count].port = GPIO_POWER.raw; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = -1; + strncpy((char *)gpios->gpios[count].name, "power", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Developer: GPIO active high */ + gpios->gpios[count].port = -1; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = get_developer_mode_switch(); + strncpy((char *)gpios->gpios[count].name, "developer", + GPIO_MAX_NAME_LENGTH); + count++; + + /* EC in RW: GPIO active high */ + gpios->gpios[count].port = GPIO_ECINRW.raw; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = -1; + strncpy((char *)gpios->gpios[count].name, "EC in RW", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Reset: GPIO active high (output) */ + gpios->gpios[count].port = GPIO_RESET.raw; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = -1; + strncpy((char *)gpios->gpios[count].name, "reset", + GPIO_MAX_NAME_LENGTH); + count++; + + gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio)); + gpios->count = count; + + printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size); +} + +int get_developer_mode_switch(void) +{ + return 0; +} + +int get_recovery_mode_switch(void) +{ + uint32_t ec_events; + + /* The GPIO is active low. */ + if (!gpio_get(GPIO_RECOVERY)) + return 1; + + ec_events = google_chromeec_get_events_b(); + return !!(ec_events & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); +} + +int get_write_protect_state(void) +{ + return !gpio_get(GPIO_WP); +} + |