b763b37411
The SPI flash component requirement for Kukui family is 8M so we should
update FMAP for that:
- Add more comments for alignment and size recommendation.
- Enlarge RO to 4M, and RW_SECTION_{A,B} both ~1.5M.
- BOOTBLOCK: 32K->128K, aligned with other ARM boards.
- Preserve RW_DDR_TRAINING for new calibration.
- Reorder the sections for better alignment.
- RW_MISC to contain RW sections that should be merged when creating AU image.
BUG=b:134624821
TEST=Built Kukui image and boots. dump_fmap -h image-kukui.bin:
# name start end size
RW_LEGACY 00700000 00800000 00100000
RW_SHARED 006f7000 00700000 00009000
RW_UNUSED 006f8000 00700000 00008000
SHARED_DATA 006f7000 006f8000 00001000
RW_SECTION_B 00580000 006f7000 00177000
RW_FWID_B 006f6f00 006f7000 00000100
FW_MAIN_B 00582000 006f6f00 00174f00
VBLOCK_B 00580000 00582000 00002000
RW_MISC 00577000 00580000 00009000
RW_ELOG 0057f000 00580000 00001000
RW_DDR_TRAINING 0057d000 0057f000 00002000
RW_NVRAM 0057b000 0057d000 00002000
RW_VPD 00577000 0057b000 00004000
RW_SECTION_A 00400000 00577000 00177000
RW_FWID_A 00576f00 00577000 00000100
FW_MAIN_A 00402000 00576f00 00174f00
VBLOCK_A 00400000 00402000 00002000
WP_RO 00000000 00400000 00400000
RO_VPD 003f8000 00400000 00008000
RO_SECTION 00000000 003f8000 003f8000
RO_FRID 003f7f00 003f8000 00000100
GBB 003f5000 003f7f00 00002f00
COREBOOT 00021000 003f5000 003d4000
FMAP 00020000 00021000 00001000
BOOTBLOCK 00000000 00020000 00020000
Change-Id: Id342d57dc95c6197d05b8a265742a2866c35ae09
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
|
||
|---|---|---|
| 3rdparty | ||
| Documentation | ||
| configs | ||
| payloads | ||
| src | ||
| util | ||
| .checkpatch.conf | ||
| .clang-format | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmodules | ||
| .gitreview | ||
| AUTHORS | ||
| COPYING | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc | ||
| README.md | ||
| gnat.adc | ||
| toolchain.inc | ||
README.md
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 https://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:
- https://www.coreboot.org/Supported_Motherboards
- https://www.coreboot.org/Supported_Chipsets_and_Devices
Build Requirements
- make
- gcc / g++
Because Linux distribution compilers tend to use lots of patches. coreboot
does lots of "unusual" things in its build system, some of which break due
to those patches, sometimes by gcc aborting, sometimes - and that's worse -
by generating broken object code.
Two options: use our toolchain (eg. make crosstools-i386) or enable the
ANY_TOOLCHAINKconfig option if you're feeling lucky (no support in this case). - iasl (for targets with ACPI support)
- pkg-config
- libssl-dev (openssl)
Optional:
- doxygen (for generating/viewing documentation)
- gdb (for better debugging facilities on some targets)
- ncurses (for
make menuconfigandmake nconfig) - flex and bison (for regenerating parsers)
Building coreboot
Please consult https://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 https://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:
You can contact us directly on the coreboot mailing list:
https://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.