diff options
| -rw-r--r-- | src/ec/lenovo/h8/Kconfig | 8 | ||||
| -rw-r--r-- | src/ec/lenovo/h8/Makefile.inc | 6 | ||||
| -rw-r--r-- | src/ec/lenovo/h8/vboot.c | 55 |
3 files changed, 69 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/Kconfig b/src/ec/lenovo/h8/Kconfig index b109831105..d874975428 100644 --- a/src/ec/lenovo/h8/Kconfig +++ b/src/ec/lenovo/h8/Kconfig @@ -32,6 +32,14 @@ config H8_HAS_BAT_TRESHOLDS_IMPL bool default n +config H8_FN_KEY_AS_VBOOT_RECOVERY_SW + bool "Enable Fn-Key as VBOOT recovery switch" + depends on VBOOT + default n + help + If VBOOT is enabled, press Fn-Key at power on to force a recovery mode + boot instead of regular FW_MAIN_x boot. + endif config H8_DOCK_EARLY_INIT diff --git a/src/ec/lenovo/h8/Makefile.inc b/src/ec/lenovo/h8/Makefile.inc index bccdd91b7d..51c11be625 100644 --- a/src/ec/lenovo/h8/Makefile.inc +++ b/src/ec/lenovo/h8/Makefile.inc @@ -7,6 +7,12 @@ bootblock-y += sense.c postcar-y += sense.c smm-y += sense.c +ramstage-$(CONFIG_VBOOT) += vboot.c +verstage-$(CONFIG_VBOOT) += vboot.c +romstage-$(CONFIG_VBOOT) += vboot.c +bootblock-$(CONFIG_VBOOT) += vboot.c +postcar-$(CONFIG_VBOOT) += vboot.c + ifneq ($(filter y,$(CONFIG_H8_BEEP_ON_DEATH) $(CONFIG_H8_FLASH_LEDS_ON_DEATH)),) romstage-y += panic.c ramstage-y += panic.c diff --git a/src/ec/lenovo/h8/vboot.c b/src/ec/lenovo/h8/vboot.c new file mode 100644 index 0000000000..3b9f74a117 --- /dev/null +++ b/src/ec/lenovo/h8/vboot.c @@ -0,0 +1,55 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Patrick Rudolph <siro@das-labor.org> + * + * 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 <ec/acpi/ec.h> +#include <bootmode.h> +#include <timer.h> +#include <delay.h> + +#include "h8.h" + +/** + * HACK: Use Fn-Key as recovery mode switch. + * Wait for sense register ready and read Fn-Key state. + */ +int get_recovery_mode_switch(void) +{ + struct stopwatch sw; + + if (!CONFIG(H8_FN_KEY_AS_VBOOT_RECOVERY_SW)) + return 0; + + /* Tests showed that it takes: + * - 700msec on Lenovo T500 from AC power on + * - less than 150msec on Lenovo T520 from AC power on + */ + stopwatch_init_msecs_expire(&sw, 1000); + while (!stopwatch_expired(&sw) && !h8_get_sense_ready()) + mdelay(1); + + if (!h8_get_sense_ready()) + return 0; + + return h8_get_fn_key(); +} + +/** + * Only used if CONFIG_CHROMEOS is set. + * Always zero as the #WP pin of the flash is tied high. + */ +int get_write_protect_state(void) +{ + return 0; +} |