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/*
* This file is part of the coreboot project.
*
*
* 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.
*/
#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;
}
}
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