diff options
Diffstat (limited to 'src/mainboard/intel/emeraldlake2/ec.c')
| -rw-r--r-- | src/mainboard/intel/emeraldlake2/ec.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/mainboard/intel/emeraldlake2/ec.c b/src/mainboard/intel/emeraldlake2/ec.c new file mode 100644 index 0000000000..ac37b0b0b5 --- /dev/null +++ b/src/mainboard/intel/emeraldlake2/ec.c @@ -0,0 +1,47 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 The Chromium OS Authors. All rights reserved. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/acpi.h> +#include <vendorcode/google/chromeos/chromeos.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_slp_type == 3) + 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); +} |