diff options
Diffstat (limited to 'src/mainboard/google/cyan/ec.c')
-rwxr-xr-x | src/mainboard/google/cyan/ec.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/mainboard/google/cyan/ec.c b/src/mainboard/google/cyan/ec.c new file mode 100755 index 0000000000..bba1b072bb --- /dev/null +++ b/src/mainboard/google/cyan/ec.c @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Google Inc. + * Copyright (C) 2015 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. + * + * 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. + */ + +#include <arch/acpi.h> +#include <console/console.h> +#include <ec/google/chromeec/ec.h> +#include "ec.h" +#include <vendorcode/google/chromeos/chromeos.h> +#include <types.h> + +void mainboard_ec_init(void) +{ + printk(BIOS_DEBUG, "mainboard_ec_init\n"); + post_code(0xf0); + +#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC) + /* Restore SCI event mask on resume. */ + if (acpi_slp_type == 3) { + 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) + ; + /* + * Set SCI mask.OS may not generate SMI event to set + * this on S3 resume. + */ + 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); +#endif + post_code(0xf1); +} |