diff options
| author | Angel Pons <th3fanbus@gmail.com> | 2019-10-24 19:37:50 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2019-12-13 17:33:06 +0000 |
| commit | 5232eb1a108c945435b63723c3b53349faabc940 (patch) | |
| tree | 1d1734e1f132032ca5eba239e0fd20b5e538dc3a /Documentation/mainboard | |
| parent | 8b4528aae5ebe021d2cfbc3f1ee71360f01dd30c (diff) | |
Doc/mb/gigabyte/ga-h61m-s2pv: Correct IFD section
Change-Id: Ic94dd7381e9a107081011d083286d27005148557
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36301
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'Documentation/mainboard')
| -rw-r--r-- | Documentation/mainboard/gigabyte/ga-h61m-s2pv.md | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/Documentation/mainboard/gigabyte/ga-h61m-s2pv.md b/Documentation/mainboard/gigabyte/ga-h61m-s2pv.md index 06c0ff7e89..84b72ce24b 100644 --- a/Documentation/mainboard/gigabyte/ga-h61m-s2pv.md +++ b/Documentation/mainboard/gigabyte/ga-h61m-s2pv.md @@ -39,27 +39,23 @@ leave the backup chip untouched. The original IFD defines the BIOS region as the whole flash chip. While this is not an issue if flashing a complete image, it confuses flashrom and trashes the -flash chip's contents when using the --ifd option. However, this can be easily -fixed by reading the IFD with flashrom, editing the correct values into it with -ifdtool and then reflashing it. - -Create a layout.txt with the following contents: +flash chip's contents when using the `--ifd` option. A possible workaround is +to create a `layout.txt` file with a non-overlapping BIOS region: 00000000:00000fff fd 00180000:003fffff bios 00001000:0017ffff me -After that, simply run: +After that, use flashrom with the new layout file. For example, to create a +backup of the BIOS region and then flash a `coreboot.rom`, do: ```bash -sudo flashrom -p internal --ifd -i fd -r ifd.rom -ifdtool -n layout.txt ifd.rom -sudo flashrom -p internal --ifd -i fd -w ifd.rom.new +sudo flashrom -p internal -l layout.txt -i bios -r backup.rom +sudo flashrom -p internal -l layout.txt -i bios -w coreboot.rom ``` -After flashing, power cycle the computer to ensure the new IFD is being used. -If only a reboot is done, the old IFD layout is still seen by flashrom, even if -the IFD on the flash chip is correctly defining the new region layout. +Modifying the IFD so that the BIOS region does not overlap would work as well. +However, this makes DualBIOS unable to recover from a bad flash for some reason. ## Technology |