commit | 467eb569c05e67c7e723466fa7c8e46a2046c07a | [log] [tgz] |
---|---|---|
author | Felix Held <felix-coreboot@felixheld.de> | Wed Jul 28 14:08:07 2021 +0200 |
committer | Felix Held <felix-coreboot@felixheld.de> | Thu Sep 09 14:20:55 2021 +0000 |
tree | 252f42944ae0dab6925ca8cf3549827ca0c560c0 | |
parent | 7bbde76014a571cbe2344615f19b1e9bc905b84a [diff] |
soc/amd/common/block/acpimmio: add remote GPIO bank ACPIMMIO region Currently coreboot for the AMD SOCs only supports accessing the up to 4 main GPIO banks of up to 64 GPIOs each. Some AMD SoCs including Cezanne have another GPIO bank in the ACPIMMIO region that can contain up to 48 GPIOs beginning with GPIO 256 which is called the remote GPIO bank. The first 48 DWORDs of that ACPIMMIO bank are the 32 bit wide GPIO registers and beginning at offset 0xc0 it has the corresponding 8 bit wide GPIO MUX registers. BUG=b:194524995 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ice4e3358de17ac2601621814978cdb70e6f2c926 Reviewed-on: https://review.coreboot.org/c/coreboot/+/56676 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
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.
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.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN
Kconfig option if you're feeling lucky (no support in this case).Optional:
make menuconfig
and make nconfig
)Please consult https://www.coreboot.org/Build_HOWTO for details.
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.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
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.