## SPDX-License-Identifier: GPL-2.0-only config MAINBOARD_HAS_CHROMEOS def_bool n menu "ChromeOS" depends on MAINBOARD_HAS_CHROMEOS config CHROMEOS bool "Build for ChromeOS" default n select ELOG if BOOT_DEVICE_SUPPORTS_WRITES select COLLECT_TIMESTAMPS select VBOOT select VPD select VBOOT_SLOTS_RW_AB help Enable ChromeOS specific features like the GPIO sub table in the coreboot table. NOTE: Enabling this option on an unsupported board will most likely break your build. if CHROMEOS config CR50_IMMEDIATELY_COMMIT_FW_SECDATA bool default y if TPM_CR50 config CHROMEOS_RAMOOPS bool "Reserve space for Chrome OS ramoops" default y config CHROMEOS_RAMOOPS_DYNAMIC bool "Allocate RAM oops buffer in cbmem" default n depends on CHROMEOS_RAMOOPS && HAVE_ACPI_TABLES config CHROMEOS_RAMOOPS_NON_ACPI bool "Allocate RAM oops buffer in cbmem passed through cb tables to payload" default y if !HAVE_ACPI_TABLES depends on CHROMEOS_RAMOOPS && !HAVE_ACPI_TABLES config CHROMEOS_RAMOOPS_RAM_START hex "Physical address of preserved RAM" default 0x00f00000 depends on CHROMEOS_RAMOOPS && !CHROMEOS_RAMOOPS_DYNAMIC config CHROMEOS_RAMOOPS_RAM_SIZE hex "Size of preserved RAM" default 0x00100000 depends on CHROMEOS_RAMOOPS config NO_TPM_RESUME bool default n help On some boards the TPM stays powered up in S3. On those boards, booting Windows will break if the TPM resume command is sent during an S3 resume. config HAVE_REGULATORY_DOMAIN bool "Add regulatory domain methods" default n help This option is needed to add ACPI regulatory domain methods config CHROMEOS_DISABLE_PLATFORM_HIERARCHY_ON_RESUME bool default y depends on TPM2 && RESUME_PATH_SAME_AS_BOOT help Disable the platform heirarchy on resume path if the firmware is involved in resume. The hierarchy is disabled prior to jumping to the OS. Note that this option is sepcific to TPM2 boards. This option is auto selected if CHROMEOS because it matches with vboot_reference model which disables the platform hierarchy in the boot loader. However, those operations need to be symmetric on normal boot as well as resume and coreboot is only involved in the resume piece w.r.t. the platform hierarchy. config CHROMEOS_USE_EC_WATCHDOG_FLAG bool default n help Use the AP watchdog flag stored in EC. config CHROMEOS_DSM_CALIB bool default n help On some boards, there are calibrated parameters for Dynamic Speaker Management(DSM) stored in VPD. Enable this config to read and parse these VPD values and write them to ACPI DSD table in device driver. These parameters will be applied by kernel driver through device property at boot. config CHROMEOS_CSE_BOARD_RESET_OVERRIDE bool default n depends on SOC_INTEL_CSE_LITE_SKU help On some boards that run old firmware version in cr50, Embedded Controller (EC) needs to trigger the cold reset of Application Processor (AP) when CSE jumps from RO to RW so that cr50 resets the TPM state. This is required on boards where the cr50 firmware does not understand the new cr50 strap config (applicable only to boards using strap config 0xe). Enabling this config will help to override the default global reset. endif # CHROMEOS endmenu