blob: 44b7824224c8a42fe81b67e6b6d655b518301e74 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright 2017 Intel Corp.
*
* 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 <arch/io.h>
#include <console/console.h>
#include <ec/ec.h>
#include <ec/google/chromeec/ec.h>
#include <intelblocks/lpc_lib.h>
#include <variant/ec.h>
static void ramstage_ec_init(void)
{
const struct google_chromeec_event_info info = {
.log_events = MAINBOARD_EC_LOG_EVENTS,
.sci_events = MAINBOARD_EC_SCI_EVENTS,
.s3_wake_events = MAINBOARD_EC_S3_WAKE_EVENTS,
.s5_wake_events = MAINBOARD_EC_S5_WAKE_EVENTS,
.s0ix_wake_events = MAINBOARD_EC_S0IX_WAKE_EVENTS,
};
printk(BIOS_ERR, "mainboard: EC init\n");
google_chromeec_events_init(&info, acpi_is_wakeup_s3());
}
static void bootblock_ec_init(void)
{
uint16_t ec_ioport_base;
size_t ec_ioport_size;
/*
* Set up LPC decoding for the ChromeEC I/O port ranges:
* - Ports 62/66, 60/64, and 200->208
* - ChromeEC specific communication I/O ports.
*/
lpc_enable_fixed_io_ranges(LPC_IOE_EC_62_66 | LPC_IOE_KBC_60_64
| LPC_IOE_LGE_200);
google_chromeec_ioport_range(&ec_ioport_base, &ec_ioport_size);
lpc_open_pmio_window(ec_ioport_base, ec_ioport_size);
}
void mainboard_ec_init(void)
{
if (CONFIG(EC_GOOGLE_CHROMEEC)) {
if (ENV_RAMSTAGE)
ramstage_ec_init();
else if (ENV_BOOTBLOCK)
bootblock_ec_init();
} else if (ENV_BOOTBLOCK) {
/*
* Set up LPC decoding for the ChromeEC I/O port ranges:
* - Ports 62/66, 60/64, and 200->208
* - ChromeEC specific communication I/O ports.
*/
lpc_enable_fixed_io_ranges(LPC_IOE_EC_62_66 | LPC_IOE_KBC_60_64
| LPC_IOE_LGE_200);
}
if (CONFIG(GLK_INTEL_EC)) {
printk(BIOS_ERR, "S3 Hack Enable ACPI mode: outb(0xaa,0x66)\n");
outb(0xaa, 0x66);
printk(BIOS_INFO, "Hack to turn on the CPU fan\n");
outb(0x81, 0x66);
outb(0x44, 0x62);
outb(0x32, 0x62);
/* Need delay here, hence second outb */
outb(0x32, 0x62);
outb(0x1a, 0x66);
}
}