-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi all, after playing little bit I found correct combination that gives ability to read whole 12MB - binary is here [1]. Couple things that people have to know (probably should be contributed to docs): 1. enable SERVICE_MODE (by shorting using jumper) - this unlocks flash descriptor 2. if you want to read in Linux (Debian in my case) pass iomem=relaxed during boot - otherwise accessing /dev/mem give operation not permitted
This mainboard is little bit weird since bios region is spread across 2 SPI chips. Layout: 00000000:00000fff fd 00600000:00bfffff bios 00005000:005fffff me 00001000:00004fff gbe It looks like there is no way to proceed without second Pomona clip for SOIC16. Luckily SPI debug console compiled in without problems after rebasing Paul's patches. I will continue reporting my experience on gerrit [2] - when it will get back since it has problems now. [1] https://cloud.3mdeb.com/index.php/s/DJxMQ6YFeee4J3Q [2] https://review.coreboot.org/c/coreboot/+/25095 Best Regards, - -- Piotr Król Embedded Systems Consultant https://3mdeb.com | @3mdeb_com -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE4DCbLYWmfoRjKeNLsu5x6WeqnkwFAlwpLO4ACgkQsu5x6Weq nkwEtg//bA4fXkogfJBHVxb/7dq6jnNyrkB4Qve0xd3MAvP4RddZhUrJGuvVdr6l tqVEDD7hPWwneXKQVxaDSXdT0E1C3qPeLZ2rAys7S5azQf67TiWgtCkRnRL8Iumc AIvY/nSiTAFyvnJi3RAM+2b76QRGimM6e5LVUbapn1DlHzpw22U8eGz3QbsL8SWr eyM3DZUS0IgRUpp+U0nqyMFEW8lNy+259p8Qff4sta9l/PCp1/8QrsQsvNr6YW5d /Dd5jelmRoc5106s59gm/uTO2pOkdEqQ79d+zfkgLQOZF783DPLN1zIfr4mMBlnk 5LCMAygx2KW3vYqkphPDaZFIhEu9oVyKlb+oaaVYC/VMOMNuAkf0MC6COSBKeBjS N/u9oZD+aKutBmbO6CTHcocVDZk4KuC28Rmn47i2SwxIJeN2giZtCF74/4Pdg+1h oVctQG0p9uFnVCTYWt3oWwQuCJBUtHQVZxOHnwqmYg2xoLE6MuQOkVpbZKVMqNE6 0f1QlD/VHmqk7tJ59e41RNAMdEBeP9VAwvu8oK/X9oKIRTUrll3SLdpb38125G3d cE7JhwvttBgHcrZ5I1ynRWy9REbfDITIqmXE7+JyEChD9GvdqoG8/gPF7QEM1aTs jlFLoe3rU6HTpNHU45ashOTak790I3Wrj2XH5W8ZGdx5bH2w0zE= =/jCq -----END PGP SIGNATURE----- _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
