012ef7735d
The code is based on autoport and that for T430s Tested: - CPU i5-3337U - Slotted DIMM 2GiB - Soldered RAM 4GiB from samsung (There may be more models here) - Camera - pci-e and usb2 on M.2 slot with A key for wlan - sata and usb2 (no superspeed components) on M.2 slot with B key for wwan - On board SDHCI connected to pci-e - USB3 ports - libgfxinit-based graphic init - NVRAM options for North and South bridges - Sound - Thinkpad EC - S3 - TPM1 on LPC - EHCI debug on SSP2 (USB3 port on the left) - Linux 4.9.110-3 within Debian GNU/Linux stable, loaded from Linux payload (Heads), Seabios may also work. Not tested: - Fingerprint reader on USB2 (not present on mine) - Keyboard backlight (not present on mine) - "sticky_fn" flag in nvram Not implemented yet: - Fn locking in nvram (may not be identical to "sticky_fn") - C-based native graphic init (since T431s has eDP instead of LVDS) - Detecting the model of Soldered RAM at runtime, and loading the corresponding SPD datum (3 observed) from CBFS (the mechanism may be similar to that on x1_carbon_gen1 and s230u, but I do not know how to find gpio ports for that, and SPD data stored in vendor firmware.) Change-Id: Ic8062cacf5e8232405bb5757e1b1d063541f354a Signed-off-by: Bill XIE <persmule@gmail.com> Reviewed-on: https://review.coreboot.org/c/30021 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> |
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|---|---|---|
| 3rdparty | ||
| Documentation | ||
| configs | ||
| payloads | ||
| src | ||
| util | ||
| .checkpatch.conf | ||
| .clang-format | ||
| .gitignore | ||
| .gitmodules | ||
| .gitreview | ||
| 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.