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Aaron Durbin df76f8983f drivers/spi: be sure to call spi_init() before spi_flash_probe()
It's necessary to call spi_init() prior to calling spi_flash_probe()
such that the SPI drivers can do any work required prior to performing
SPI transactions.  It could be argued that the drivers should handle
such situations, however the SPI API implementations seem to assume the
callers ensured spi_init() was called before any SPI transactions.

This fixes systems that failed to boot introduced by [1]. Issue tracked
in https://ticket.coreboot.org/issues/67.

[1] I2aa75f88409309e3f9b9bd79b52d27c0061139c8
    https://review.coreboot.org/16200

BUG=chrome-os-partner:56151

Change-Id: I2d8d5ac685833521f1efe212b07a4b61ba0d9bc3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16297
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
2016-08-23 15:17:00 +02:00
3rdparty 3rdparty/blobs: Update to get AGESA binary for pcengines/apu2 2016-08-21 21:20:13 +02:00
Documentation Documentation: add start of documentation of the build system 2016-08-12 20:12:18 +02:00
payloads libpayload: head.S: Avoid clearing BSS (and heap) again 2016-08-13 02:46:19 +02:00
src drivers/spi: be sure to call spi_init() before spi_flash_probe() 2016-08-23 15:17:00 +02:00
util util/scripts: Support cygwin in ucode conversion tool 2016-08-22 04:19:24 +02:00
.checkpatch.conf checkpatch: Add BLOCK_COMMENT_STYLE to ignore list 2016-08-05 00:01:55 +02:00
.clang-format
.gitignore .gitignore: Ignore Python object files 2016-08-01 09:50:48 +02:00
.gitmodules git modules: rename git submodules to avoid hierarchies 2016-02-11 20:55:55 +01:00
.gitreview add .gitreview 2012-11-01 23:13:39 +01:00
COPYING
MAINTAINERS MAINTAINERS: Add myself as tpm support maintainer. 2016-07-07 17:04:29 +02:00
Makefile crossgcc: Add gnumake target so that make can be built directly 2016-08-13 23:31:19 +02:00
Makefile.inc build system: Print the content of all regions we add files to 2016-08-11 20:32:28 +02:00
README Remove extra newlines from the end of all coreboot files. 2016-07-31 18:19:33 +02:00
toolchain.inc toolchain.inc: Update 'required toolchain' error text 2016-08-04 21:48:27 +02:00

README

-------------------------------------------------------------------------------
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 http://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:

 * http://www.coreboot.org/Supported_Motherboards
 * http://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_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this
   case).
 * iasl (for targets with ACPI support)

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 http://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 http://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:

  http://www.coreboot.org

You can contact us directly on the coreboot mailing list:

  http://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.