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In order to display a "update in progress" screen on devices with a slow EC or PD chip it may be necessary to also load the VGA Option ROM when doing EC software sync. This adds config options for VBOOT_EC_SLOW_UPDATE which simply sets a flag in the input parameters that is already handled by vboot. It also adds a config option for VBOOT_OPROM_MATTERS which is a bit more tricky in that it sets a flag in input parameters, but also needs to keep track of the option rom being loaded and pass that flag into VbInit as well. Since VbInit will clear the NV bit for option rom loaded the check that is done in vboot_wants_oprom() needs to first compare against the vboot handoff copy of the input flags. BUG=chrome-os-partner:32379 BRANCH=samus TEST=manual testing: 1) in normal mode, with EC/PD in RW, ensure that they are rebooted to RO and the VGA Option ROM is loaded and the wait screen is displayed, and then the system is rebooted at the end and the VGA Option ROM is not loaded. 2) same as #1 with EC/PD in RO already, same result 3) same as #1 with system in developer mode, same result except there is no reboot at the end of software sync 4) same as #1 with system in developer mode and EC/PD in RO, ensure that there is no extra reboot at the beginning or end of software sync. Original-Change-Id: Ic2b34bf9e7c6cc5498413fa1b8dff6e6207c9d0a Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/223831 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> (cherry picked from commit 7d7aa89238efb5081885f9386c8e872fc96f573f) Change-Id: Ib7fb24e6e80e1f7e836bc62246ab9b3e056fd73d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8887 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
------------------------------------------------------------------------------- coreboot README ------------------------------------------------------------------------------- coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload. With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required. coreboot was formerly known as LinuxBIOS. Payloads -------- After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot. See http://www.coreboot.org/Payloads for a list of supported payloads. Supported Hardware ------------------ coreboot supports a wide range of chipsets, devices, and mainboards. For details please consult: * http://www.coreboot.org/Supported_Motherboards * http://www.coreboot.org/Supported_Chipsets_and_Devices Build Requirements ------------------ * gcc / g++ * make Optional: * doxygen (for generating/viewing documentation) * iasl (for targets with ACPI support) * gdb (for better debugging facilities on some targets) * ncurses (for 'make menuconfig') * flex and bison (for regenerating parsers) Building coreboot ----------------- Please consult http://www.coreboot.org/Build_HOWTO for details. Testing coreboot Without Modifying Your Hardware ------------------------------------------------ If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU. Please see http://www.coreboot.org/QEMU for details. Website and Mailing List ------------------------ Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website: http://www.coreboot.org You can contact us directly on the coreboot mailing list: http://www.coreboot.org/Mailinglist Copyright and License --------------------- The copyright on coreboot is owned by quite a large number of individual developers and companies. Please check the individual source files for details. coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details. This makes the resulting coreboot images licensed under the GPL, version 2.