|author||Karthikeyan Ramasubramanian <firstname.lastname@example.org>||Wed Dec 05 22:48:08 2018 -0700|
|committer||Patrick Georgi <email@example.com>||Fri Dec 07 11:38:30 2018 +0000|
soc/intel/apollolake: Print ME version on exit of BS_DEV_INIT stage Recently there has been a change to print ME version. But the stage at which the version is printed causes the HECI device to remain in D0 state. This in turn prevents the SoC from entering S0ix state. This change moves printing ME version a little earlier so that the HECI device is put into D0i3 state by FSP and the SoC can enter S0ix state successfully. BRANCH=octopus BUG=b:120571529 TEST=Ensure that the ME version gets printed in BIOS logs. Ensure that the device boots to ChromeOS. Ensure that the device enters S0ix successfully(using suspend_stress_test -c 25). Change-Id: I85bc45003a040c8347f929457792d78a9a077c6c Signed-off-by: Karthikeyan Ramasubramanian <firstname.lastname@example.org> Reviewed-on: https://review.coreboot.org/c/30074 Tested-by: build bot (Jenkins) <email@example.com> Reviewed-by: Furquan Shaikh <firstname.lastname@example.org>
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.
After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot.
See https://www.coreboot.org/Payloads for a list of supported payloads.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAINKconfig option if you're feeling lucky (no support in this case).
Please consult https://www.coreboot.org/Build_HOWTO for details.
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 https://www.coreboot.org/QEMU for details.
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This makes the resulting coreboot images licensed under the GPL, version 2.