No description
6a16f697d8
When warm booting, SD card reader on Tegra 124 needs to be reset by setting power GPIO to zero. Since we don't really access SD card in Coreboot, set it to zero and let payloads enable power when they need to access SD cards. CQ-DEPEND=CL:196783 BRANCH=nyan BUG=chrome-os-partner:27053 TEST=emerge-nyan coreboot depthcharge chromeos-bootimage # With related changes in depthcharge, boots SD card successfully. Original-Change-Id: I2d368eb9480c978e9e343648b58a729028c94622 Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/196774 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Tested-by: Andrew Bresticker <abrestic@chromium.org> (cherry picked from commit 62bb7d04dff1a87474a8557f144b24e6b7d006ae) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I3429535d0d032f9db89d8e70a525a6281102537a Reviewed-on: http://review.coreboot.org/7865 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> |
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3rdparty@9f68e20e5e | ||
documentation | ||
payloads | ||
src | ||
util | ||
.gitignore | ||
.gitmodules | ||
.gitreview | ||
COPYING | ||
Makefile | ||
Makefile.inc | ||
README | ||
toolchain.inc |
------------------------------------------------------------------------------- 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 ------------------ * gcc / g++ * make Optional: * doxygen (for generating/viewing documentation) * iasl (for targets with ACPI support) * gdb (for better debugging facilities on some targets) * ncurses (for 'make menuconfig') * 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.