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.