src/mainboard/google/octopus/variants/dood/variant.c

/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

#include <arch/acpi.h>
#include <boardid.h>
#include <sar.h>
#include <baseboard/variants.h>
#include <delay.h>
#include <gpio.h>
#include <ec/google/chromeec/ec.h>

enum {
	SKU_1_LTE  = 1, /* Wifi + LTE */
	SKU_2_WIFI = 2, /* Wifi */
	SKU_3_LTE_2CAM = 3, /* Wifi + LTE + dual camera */
	SKU_4_WIFI_2CAM = 4, /* Wifi + dual camera */
};

struct gpio_with_delay {
	gpio_t gpio;
	unsigned int delay_msecs;
};

static void power_off_lte_module(u8 slp_typ)
{
	const struct gpio_with_delay lte_power_off_gpios[] = {
		{
			GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
			30,
		},
		{
			GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
			100
		},
		{
			GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
			0
		}
	};

	for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) {
		gpio_output(lte_power_off_gpios[i].gpio, 0);
		mdelay(lte_power_off_gpios[i].delay_msecs);
	}
}


void variant_smi_sleep(u8 slp_typ)
{
	/* Currently use cases here all target to S5 therefore we do early return
	 * here for saving one transaction to the EC for getting SKU ID. */
	if (slp_typ != ACPI_S5)
		return;

	switch (google_chromeec_get_board_sku()) {
	case SKU_1_LTE:
	case SKU_3_LTE_2CAM:
		power_off_lte_module(slp_typ);
		return;
	default:
		return;
	}
}