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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 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.
*/
#include <arch/acpi.h>
#include <bootmode.h>
#include <types.h>
#include <console/console.h>
#include <ec/quanta/it8518/ec.h>
#include <device/device.h>
#include <device/pci.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/common/pmbase.h>
#include <elog.h>
#include "ec.h"
#ifdef __SMM__
#include <cpu/x86/smm.h>
#endif
#ifndef __SMM__
void stout_ec_init(void)
{
printk(BIOS_DEBUG,"%s: EC FW version %x%x\n", __func__,
ec_read(EC_FW_VER), ec_read(EC_FW_VER + 1));
/*
* Important: get_recovery_mode_switch() must be called in EC init.
*/
get_recovery_mode_switch();
/* Unmute */
ec_kbc_write_cmd(EC_KBD_CMD_UNMUTE);
/*
* Set USB Power off in S3 (enabled in S3 path if requested in gnvs)
* Bit0 of 0x0D/Bit0 of 0x26
* 0/0 All USB port off
* 1/0 USB on, all USB port didn't support wake up
* 0/1 USB on, yellow port support wake up charge, but may not support
* charge smart phone.
* 1/1 USB on, yellow port in AUTO mode and didn't support wake up system.
*/
ec_write(EC_PERIPH_CNTL_3, ec_read(EC_PERIPH_CNTL_3) & 0xE);
ec_write(EC_USB_S3_EN, ec_read(EC_USB_S3_EN) & 0xE);
// TODO: Power Limit Setting
}
#else // SMM
void stout_ec_finalize_smm(void)
{
u8 ec_reg, critical_shutdown = 0;
/*
* Check EC for error conditions.
*/
/* Fan Error : Peripheral Status 3 (0x35) bit 4 */
ec_reg = ec_read(EC_PERIPH_STAT_3);
if (ec_reg & 0x8) {
printk(BIOS_ERR, " EC Fan Error\n");
critical_shutdown = 1;
}
/* Thermal Device Error : Peripheral Status 3 (0x35) bit 8 */
if (ec_reg & 0x80) {
printk(BIOS_ERR, " EC Thermal Device Error\n");
critical_shutdown = 1;
}
/* Critical Battery Error */
ec_reg = ec_read(EC_MBAT_STATUS);
if ((ec_reg & 0xCF) == 0xC0) {
printk(BIOS_ERR, " EC Critical Battery Error\n");
critical_shutdown = 1;
}
if ((ec_reg & 0x8F) == 0x8F) {
printk(BIOS_ERR, " EC Read Battery Error\n");
}
if (critical_shutdown) {
printk(BIOS_ERR, "EC critical_shutdown");
/* Go to S5 */
write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
}
}
#endif //__SMM__
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