diff options
| author | Bill XIE <persmule@hardenedlinux.org> | 2022-07-07 16:18:57 +0800 |
|---|---|---|
| committer | Martin L Roth <gaumless@tutanota.com> | 2022-07-30 18:39:31 +0000 |
| commit | 4e43abf9c120b5a9ae4d920a71df1c7993e6a617 (patch) | |
| tree | 338f77db7b370fd10f57103e467f19892c5d7802 /Documentation | |
| parent | a955efc190475bc1746c872395729a285c95d95e (diff) | |
mb/hp/z220_series: Improve the port for z220_sff_workstation
- Move configs for PCIe ports not present on z220_sff_workstation
from the devicetree.cb of base board to the overridetree.cb of
z220_cmt_workstation.
- Add a note for ME/AMT Flash Override jumper, for it is hard to
flash from OEM firmware either internally or externally without
closing this jumper.
- Add a side note for similar HP Compaq Elite 8300 SFF.
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: I35d8b97f52a83910a61c12b1f7367ee7a19a9ad7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65703
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/mainboard/hp/z220_sff.md | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/mainboard/hp/z220_sff.md b/Documentation/mainboard/hp/z220_sff.md index 0dfa653937..11676208ac 100644 --- a/Documentation/mainboard/hp/z220_sff.md +++ b/Documentation/mainboard/hp/z220_sff.md @@ -44,8 +44,17 @@ The SPI flash can be accessed using [flashrom]. External programming with an SPI adapter and [flashrom] does work, but it powers the whole southbridge complex. You need to supply enough current through the programming adapter. -If you want to use a SOIC pomona test clip, you have to cut the 2nd DRAM DIMM holder, -as otherwise there's not enough space near the flash. +If you want to use a SOIC pomona test clip, you have to cut the 2nd DRAM DIMM holder, as +otherwise there's not enough space near the flash. + +In both case, if ME has not been completely disabled, ME/AMT Flash Override jumper had better +be temporary closed for flashing to disable the locking of regions, and prevent ME to run and +interfere. + +## Side note +The mainboard of [HP Compaq Elite 8300 SFF] is very similar to the one of Z220 SFF, except +that Compaq Elite 8300 uses Q77 instead of C216 for its PCH, and their boot firmwares are +even interchangeable, so should do coreboot images built for them. ## Technology @@ -66,5 +75,6 @@ as otherwise there's not enough space near the flash. ``` [HP Z220 SFF Workstation]: https://support.hp.com/za-en/document/c03386950 +[HP Compaq Elite 8300 SFF]: https://support.hp.com/us-en/document/c03345460 [HP]: https://www.hp.com/ [flashrom]: https://flashrom.org/Flashrom |