Jasper Lake: Commit 21e61847 (ramtop caching) causes FSP-M to fail with EFI_UNSUPPORTED
Jonathon Hall <[email protected]>
| Newsgroups | gmane.linux.bios |
|---|---|
| Message-ID | <[email protected]> |
For Librem 11 (Intel N5100, Jasper Lake), I had to revert 21e61847 [1] in order for FspMemoryInit to succeed for second and later boots. If the MTRR is set in early_ramtop_enable_cache_range(), all JSL FSPs I tested fail FspMemoryInit with EFI_UNSUPPORTED. Since there is no public FSP release for JSL, I tested the FSP binaries from a number of Chromebooks - buggzy, cret, boten, storo. Before submitting a revert patch I wanted to discuss whether this should be conditionally enabled or reverted. @Sean, I saw you authored this change, does it work for you? Are there other FSP binaries available where this might work? CC Matt DeVillier, as this will probably affect 4.21 releases of the MrChromebox UEFI firmware for JSL devices. Thanks, Jonathon [1] https://review.coreboot.org/c/coreboot/+/74518 _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
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