I am trying to boot BayleyBay CRB Rev 3 using coreboot and have no success so far. I have serial port (DB9) connected and using 115200 Baud Rate. No message comes on serial at all. Here is the procedure I followed.
1. Pulled latest coreboot from git. 2. Pulled following from BAY_TRAIL_FSP_KIT. The reason for doing it is that BAYTRAIL_FSP.fd is not in git and .config refers to it. Also .config refers to ../intel/cpu/baytrail/microcode a) created intel directory parallel to coreboot and copied BAYTRAIL_FSP_GOLD_002_10-JANUARY-2014.fd in to intel/fsp/baytrail/BAYTRAIL_FSP.fd b) Copied *.h from Microcode folder in the kit to intel/cpu/baytrail/microcode. 3. Configured the coreboot for mainboard as intel bayleybay. My .config is attached. 4. Build Coreboot. Below is the prints from cbfstool. cmos_layout.bin 0x0 cmos_layout 1132 fallback/romstage 0x4c0 stage 27813 fallback/ramstage 0x71c0 stage 67431 fallback/payload 0x17980 payload 268859 config 0x59400 raw 4363 (empty) 0x5a540 null 744088 cpu_microcode_blob.bin 0x110000 microcode 104448 (empty) 0x129840 null 157528 mrc.cache 0x14ffc0 (unknown) 65536 (empty) 0x160000 null 393112 fsp.bin 0x1bffc0 (unknown) 229376 (empty) 0x1f8000 null 31640 5. Flashed the coreboot.rom in upper 2MB (0X0600000-0x07FFFFF) 6. Reboot the board 7. Nothing comes on Serial Console (DB9). Also tried to connect Micro usb cable which detects two serial ports but no output to any of them as well. 8. Before flashing coreboot.rom, 4 digit display was displaying something on two digits and rest two were zero. Now all 4 digits stays at zeros.
Looking for help to get at least serial working so that I can get some logs to debug it. I do not have copy of original BIOS that was there in Flash and forgot to make a copy using programmer though I ensured that I only touch upper 2MB. I am stuck and have no logs to debug it.
Thanks in advance.