summaryrefslogtreecommitdiff
path: root/src/mainboard/intel/emeraldlake2/ec.c
blob: c1d2046b45f808656e3cec9eafa2d476fe6e88ff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

#include <arch/acpi.h>
#include <types.h>
#include <console/console.h>
#include <ec/smsc/mec1308/ec.h>
#include "ec.h"

void lumpy_ec_init(void)
{
	printk(BIOS_DEBUG, "lumpy_ec_init\n");

	if (acpi_is_wakeup_s3())
		return;

	/*
	 * Enable EC control of fan speed.
	 *
	 * This will be changed to OS control in ACPI EC _REG
	 * method when the OS is ready to control the fan.
	 */
	ec_write(EC_FAN_SPEED, 0);

	send_ec_command_data(EC_BATTERY_MODE, EC_BATTERY_MODE_NORMAL);
	send_ec_command_data(EC_POWER_BUTTON_MODE, EC_POWER_BUTTON_MODE_OS);
	send_ec_command(EC_SMI_DISABLE);
	send_ec_command(EC_ACPI_ENABLE);
	send_ec_command(EC_BACKLIGHT_ON);
}