commit | 944d00b28ccd10985ee93a27139d4810fbe7955e | [log] [tgz] |
---|---|---|
author | Zheng Bao <zheng.bao@amd.com> | Mon Aug 17 11:11:48 2020 +0800 |
committer | Felix Held <felix-coreboot@felixheld.de> | Tue Oct 20 12:29:32 2020 +0000 |
tree | 9f160205aef59e178af33018c8fda46e757b6070 | |
parent | 77f340a707a868d56d8348cd9ab03308f4902bd9 [diff] |
soc/amd/picasso: Use readelf to find bootblock size and location The Picasso build describes the DRAM region where the PSP places our bootblock. Rather than relying on Kconfig values, make the build more robust by using the actual size and target base address from the boot block's ELF file. Sample output of "readelf -l bootblock.elf" is: ------------------ Elf file type is EXEC (Executable file) Entry point 0x203fff0 There is 1 program header, starting at offset 52 Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align LOAD 0x001000 0x02030000 0x02030000 0x10000 0x10000 RWE 0x1000 Section to Segment mapping: Segment Sections... 00 .text .data .bss .reset ------------------ We can extract the information from here. BUG=b:154957411 TEST=Build & boot on mandolin Change-Id: I5a26047726f897c57325387cb304fddbc73f6504 Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46092 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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.