diff options
Diffstat (limited to 'src/mainboard/google/veyron_emile/chromeos.c')
-rw-r--r-- | src/mainboard/google/veyron_emile/chromeos.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/mainboard/google/veyron_emile/chromeos.c b/src/mainboard/google/veyron_emile/chromeos.c new file mode 100644 index 0000000000..2222c0e70b --- /dev/null +++ b/src/mainboard/google/veyron_emile/chromeos.c @@ -0,0 +1,92 @@ +/* + * 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. + */ + +#include <boot/coreboot_tables.h> +#include <console/console.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_RECOVERY GPIO(0, B, 1) + +void setup_chromeos_gpios(void) +{ + gpio_input(GPIO_WP); + 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_LOW; + gpios->gpios[count].value = gpio_get(GPIO_RECOVERY); + strncpy((char *)gpios->gpios[count].name, "recovery", + 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++; + + /* 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) +{ + return !gpio_get(GPIO_RECOVERY); +} + +int get_write_protect_state(void) +{ + return !gpio_get(GPIO_WP); +} |