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/*
* 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 <rules.h>
#include <soc/lpc.h>
#include <variant/ec.h>
static void ramstage_ec_init(void)
{
printk(BIOS_ERR, "mainboard: EC init\n");
if (acpi_is_wakeup_s3()) {
google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
MAINBOARD_EC_S3_WAKE_EVENTS);
/* Disable SMI and wake events */
google_chromeec_set_smi_mask(0);
/* Clear pending events */
while (google_chromeec_get_event() != 0)
;
/* Restore SCI event mask */
google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
} else {
google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
MAINBOARD_EC_S5_WAKE_EVENTS);
}
/* Clear wake event mask */
google_chromeec_set_wake_mask(0);
}
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(IOE_EC_62_66 | IOE_KBC_60_64 | 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 (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)) {
if (ENV_RAMSTAGE)
ramstage_ec_init();
else if (ENV_BOOTBLOCK)
bootblock_ec_init();
} else if (ENV_BOOTBLOCK)
lpc_enable_fixed_io_ranges(IOE_EC_62_66 | IOE_KBC_60_64 |
IOE_LGE_200);
if (IS_ENABLED(CONFIG_GLK_INTEL_EC)) {
printk(BIOS_ERR, "S3 Hack Enable ACPI mode: outb(0xaa,0x66)\n");
outb(0xaa, 0x66);
}
}
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