chromeos.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bootmode.h>
#include <boot/coreboot_tables.h>
#include <device/device.h>
#include <southbridge/intel/lynxpoint/pch.h>
#include <southbridge/intel/common/gpio.h>
#include <types.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include "onboard.h"
 
void fill_lb_gpios(struct lb_gpios *gpios)
{
        struct lb_gpio chromeos_gpios[] = {
                /* Recovery: GPIO69 - SV_DETECT - J8E3 (silkscreen: J8E2) */
                {GPIO_REC_MODE, ACTIVE_HIGH, get_recovery_mode_switch(), "presence"},
 
                /* Hard code the lid switch GPIO to open. */
                {-1, ACTIVE_HIGH, 1, "lid"},
 
                /* Power Button */
                {-1, ACTIVE_HIGH, 0, "power"},
 
                /* Did we load the VGA option ROM? */
                {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
        };
        lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
 
int get_recovery_mode_switch(void)
{
        /*
         * Recovery: GPIO69, Connected to J8E3, however the silkscreen says
         * J8E2. The jump is active high.
         */
        return get_gpio(GPIO_REC_MODE);
}
 
int get_write_protect_state(void)
{
        /* Write protect is active low, so invert it here */
        return !get_gpio(GPIO_SPI_WP);
}
 
static const struct cros_gpio cros_gpios[] = {
        CROS_GPIO_REC_AH(GPIO_REC_MODE, CROS_GPIO_DEVICE_NAME),
        CROS_GPIO_WP_AL(GPIO_SPI_WP, CROS_GPIO_DEVICE_NAME),
};
 
DECLARE_CROS_GPIOS(cros_gpios);