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Lin Huang 13acd35d6f rockchip/rk3399: sdram: Reset system if switch to index1 fails
Near the end of DDR initialization, the system switches to the index1
configuration. Sometimes this failed and a status bit that coreboot was
waiting for was never set, hanging the system.

Instead, give the system 100ms to reach the new configuration or reboot
it, which generally fixes the issue. Also reset when training the index1
configuration fails.

BUG=chrome-os-partner:57988
BRANCH=None
TEST=The error condition now leads to a reboot of coreboot which
recovers the system, instead of hanging.

Change-Id: Icb4270369102ff7a4ce91b0677e04b4eb10f1204
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: ca250d0628ea3b6b39d5131246eaba68637c5140
Original-Change-Id: Id6e8936d90e54b733ac327f8476d744b45639232
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/399681
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/17106
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2016-11-02 17:31:03 +01:00
3rdparty Set up 3rdparty/libgfxinit 2016-10-29 01:35:03 +02:00
Documentation Documentation: Add documentation for GPIO toggling in ACPI AML 2016-10-29 00:13:06 +02:00
payloads Do not select SEABIOS_VGA_COREBOOT by default when building for QEMU 2016-10-27 18:52:30 +02:00
src rockchip/rk3399: sdram: Reset system if switch to index1 fails 2016-11-02 17:31:03 +01:00
util superiotool: Add undocumented registers of ITE IT8783E/F 2016-10-31 20:29:56 +01:00
.checkpatch.conf Update .checkpatch.conf 2016-09-02 18:22:04 +02:00
.clang-format
.gitignore .gitignore: Add coreinfo build residue, defconfig 2016-09-02 18:20:51 +02:00
.gitmodules Set up 3rdparty/libgfxinit 2016-10-29 01:35:03 +02:00
.gitreview
COPYING
MAINTAINERS MAINTAINERS: Add Jonathan Neuschäfer as RISC-V co-maintainer 2016-10-15 00:35:04 +02:00
Makefile Makefile: Allow inclusion of source files from 3rdparty/ 2016-10-29 01:34:06 +02:00
Makefile.inc Set up 3rdparty/libgfxinit 2016-10-29 01:35:03 +02:00
README Remove extra newlines from the end of all coreboot files. 2016-07-31 18:19:33 +02:00
gnat.adc gnat.adc: Do not generate assertion code for Refined_Post 2016-10-29 01:33:31 +02:00
toolchain.inc Add minimal GNAT run time system (RTS) 2016-09-19 11:14:49 +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.