| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2016 Google Inc. |
| * |
| * 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 <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 (ENV_RAMSTAGE) |
| ramstage_ec_init(); |
| else if (ENV_BOOTBLOCK) |
| bootblock_ec_init(); |
| } |