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Michael Niewöhner e83d30bb5a mb: remove duplicated Make code for spd.bin generation 
Drop duplicated code for spd.bin generation that is provided globally
in lib/Makefile.inc.

For all affected boards it has been verified that the output binary
functionally matches the original one. The changed execution order of
Make instructions influenced the cbfs file order. Hence, the rom images
can't be compared directly.

Thus, the output files of the two timeless abuild runs have been compared.
Further, it was verified that the final files in cbfs stay identical, by
comparing the extracted cbfs of each board.

The boards (possibly) needing modification could be found with something
like this (with false positives, though):

find src/mainboard -name Makefile.inc | \
  xargs egrep 'SPD_BIN|SPD_DEPS' | cut -d: -f1 | sort -u

Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: Icd3ac0fd6c901228554115c6350d88bb49874587
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
 		2020-09-06 14:57:06 +00:00
3rdparty 3rdparty/fsp: Update submodule pointer to current master 2020-09-03 21:13:36 +00:00
Documentation Documentation: Discuss how we use language 2020-08-31 20:23:22 +00:00
LICENSES drivers: Use SPDX identifiers 2020-05-25 22:19:21 +00:00
configs configs: Build test experimental x86_64 code 2020-08-19 10:54:45 +00:00
payloads libpayload/xhci: Fix Slot State field width definition 2020-09-04 19:13:31 +00:00
src mb: remove duplicated Make code for spd.bin generation 2020-09-06 14:57:06 +00:00
tests tests: Improve test_skip_atoi() in /lib/string-test test case 2020-07-12 19:38:39 +00:00
util crossgcc: Ensure that GMP is built for a generic CPU on x86 2020-09-03 18:47:09 +00:00
.checkpatch.conf
…
.clang-format
…
.editorconfig
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.gitignore util: update .gitignore to ignore spd_tools binaries 2020-09-02 07:17:55 +00:00
.gitmodules Add qc_blobs repository 2020-06-30 08:57:03 +00:00
.gitreview
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AUTHORS AUTHORS, util/: Drop individual copyright notices 2020-05-09 21:21:32 +00:00
COPYING
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MAINTAINERS MAINTAINERS: Update soc/mediatek maintainership 2020-08-26 07:35:21 +00:00
Makefile build system: Rely on xcompile for HOSTCC and HOSTCXX 2020-07-08 08:53:46 +00:00
Makefile.inc Makefile.inc: Print warning type ignored by IASL 2020-08-31 06:44:31 +00:00
README.md
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gnat.adc treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
toolchain.inc Remove MAYBE_STATIC_BSS and ENV_STAGE_HAS_BSS_SECTION 2020-05-26 15:04:08 +00:00

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:

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_TOOLCHAIN Kconfig 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 menuconfig and make 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:

https://www.coreboot.org

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.