On 23.05.2017 18:49, Gailu Singh wrote: > Hi Experts, > > If we use CBFS_SIZE to be same as ROM_SIZE on our apollolake board grub > fails to load grub.cfg located in CBFS. Based on experiments we found that > grub.cfg is loaded correctly if we keep minimum difference of 64KB between > CBFS_SIZE and ROM_SIZE if we reduce it to less that 64KB problem happens. > > Can someone please explain the behavior and if it is expected behavior or a > bug?
Setting both the same seems very wrong to me for Apollo Lake. ROM_SIZE is supposed to be the full size of the flash chip. That chip is shared by SoC configuration, blobs and the BIOS/coreboot. coreboot will reside in the "BIOS" region of the chip, CBFS_SIZE should be at most the size of that region. Hope that helps, Nico -- coreboot mailing list: coreboot@coreboot.org https://mail.coreboot.org/mailman/listinfo/coreboot
