Thanks Andrey, that was what I mean. I tried as your suggestion: flashed an 8 MB Intel-provided image, read back from SPI chip right after flashing, got a 16 MB file (since SPI chip is 16 MB size). The first 8 MB of 2 files are exactly the same. So, flashing should work fine.
I also went through coreboot mailing list and saw this thread: https://www.coreboot.org/pipermail/coreboot/2017-February/083413.html The guy here got the same problem with me: >* Currently:* >* DS6B1 : Green ON* >* DS6B2 : Green ON* >* DS2C1 : OFF* > *DS3B1 : RED ON* > > >* No Output on serial console or HDMI. * And you commented: Red light is never a good sign. Do you have a way to know if PLTRST# has > been de-asserted? Another thing is that when you stitch with FIT you need to turn off boot > guard completely. I suspect you have it on and that makes CSE to check > signatures. Please check that in Platform protection -> Bootguard > configuration it is set to "bootguard profile 0 - legacy". Then try > restitching fit image and rebuilding coreboot again. - Andrey In my case: - PLTRST# has not been de-asserted. I plugged a PostCode display module in the CRB and RST LED is always Green ON. - Bootguard configuration is already set to "bootguard profile 0 - legacy". Could you please give me further advice? Thanks a lot.
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