Hi Simon, >>> I might be able to create an image that prints out post_code() calls. > > I added a debug UART image here: > https://drive.google.com/folderview?id=0B7WYZbZ9zd-3flBfMEk3WHRSclJDWHFxOWlQTlBEUHg3aGM0aUZhLTdMYWVGbm9HNXNYTlU&usp=sharing >
The results are identical as that of previous image. I still get no output on serial. Tried flashing the image with both falshrom(Linux) and Dediprog software(Windows). I even began to doubt my serial connection on Linux so switched to Teraterm on Windows but still no output on serial. > Are you able to progress by using qemu in the meantime? Yes. My first approach was to extract the acpi tables from fw_cfg. That is failing for u-boot but works for coreboot. I have discussed this issue with Bin. Now I am trying to write ACPI tables(i.e. builtin ACPI) for qemu-x86. This is case that should be generic and would be hit for minnowmax also. >>> Will wait to hear from John. Just had a word with John.....he seems to get identical results as me for both the images that you shared. Would like to quote him - "so my suspicion is that Simon is building the firmware with a slightly older FSP specifically an FSP that doesn't support the newer stepping on the CPU. I just flashed the debug one on an A0 (ancient board obviously) and I get some output. I get nothing on my newer A2 w/ a D0 stepped CPU . All that needs to happen is to use a newer FSP. The board you have I'm pretty sure is an A2 board with a D0 stepping cpu. It's possible that Simon got his board long enough ago that he's got an A1 or A2 with a B3 stepping cpu I.E. that explains why it works for him, and not you. I'm 99% sure that's the issue. try with FSP 3 gold." I am now trying to build the u-boot.rom from FSP 3 gold and would let you know about the results ASAP. Regards, Saket Sinha _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot