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Martin Roth f09b4b6bee soc/amd/common: Refactor and consolidate code for spi base
Previously, the spi base address code was using a number of different
functions in a way that didn't work for use on the PSP.

This patch consolidates all of that to a single saved value that gets
the LPC SPI base address by default on X86, and allows the PSP to set
it to a different value.

BUG=b:159811539
TEST=Build with following patch to set the SPI speed in psp_verstage.

Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I50d9de269bcb88fbf510056a6216e22a050cae6b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43307
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-07-26 21:04:25 +00:00
3rdparty 3rdparty/libgfxinit: Update submodule pointer 2020-07-20 12:09:47 +00:00
configs configs/config.stm: Correct config file name 2020-07-21 22:08:04 +00:00
Documentation Doc/tutorial/part1.md: Show how to list toolchain targets 2020-07-22 04:56:25 +00:00
LICENSES drivers: Use SPDX identifiers 2020-05-25 22:19:21 +00:00
payloads payloads/libpayload/drivers/usb/usb.c: Remove whitespace before tab 2020-07-25 01:25:25 +00:00
src soc/amd/common: Refactor and consolidate code for spi base 2020-07-26 21:04:25 +00:00
tests tests: Improve test_skip_atoi() in /lib/string-test test case 2020-07-12 19:38:39 +00:00
util */mb/google/volteer/**/gpio.h: Fix up license header 2020-07-26 20:55:19 +00:00
.checkpatch.conf
.clang-format lint/clang-format: set to 96 chars per line 2019-06-13 20:14:00 +00:00
.editorconfig Add .editorconfig file 2019-09-10 12:52:18 +00:00
.gitignore cbfstool: Build vboot library 2020-03-23 08:34:23 +00:00
.gitmodules Add qc_blobs repository 2020-06-30 08:57:03 +00:00
.gitreview
AUTHORS AUTHORS, util/: Drop individual copyright notices 2020-05-09 21:21:32 +00:00
COPYING
gnat.adc treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
MAINTAINERS MAINTAINERS: Add Jeremy Soller for ec/system76 and mb/system76 2020-07-23 09:30:48 +00:00
Makefile build system: Rely on xcompile for HOSTCC and HOSTCXX 2020-07-08 08:53:46 +00:00
Makefile.inc assert.h: Do not use __FILE__ nor __LINE__ on timeless builds 2020-07-24 23:23:54 +00:00
README.md README.md: Remove link to deprecated wiki 2019-11-16 20:39:55 +00:00
toolchain.inc Remove MAYBE_STATIC_BSS and ENV_STAGE_HAS_BSS_SECTION 2020-05-26 15:04:08 +00:00

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

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.