[coreboot] post_code to text file

Haleigh Novak haleigh at edt.com
Thu Dec 15 02:35:56 CET 2016

Hello All,

I was wondering if it would be possible to add a few lines in the post_code method so it also writes all the codes to a text file and then keep that text file around so it could be read once the system is running - for debugging purposes because a post_code reader is currently unavailable to me. I know that the BIOS handles the post codes and my chosen BIOS is coreboot and I have added just a couple lines to the post code method right after mainboard_post() is called in order to print the codes to a file in / as well. But I don't have any idea how to pass a small text file along from coreboot up to yocto jethro during boot - is this even possible?

Any comments, thoughts, ideas, guidance  would be greatly appriciated. Thank you.

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