Hi Keith,
On Fri, Feb 28, 2020 at 7:18 AM Keith Hui buurin@gmail.com wrote:
A week ago I wrote here about my problems trying to port coreboot to my board. Unfortunately I am still no closer to booting.
In the meantime I flashed my new chip with my OEM firmware backup. It boots; then I flashed my patched IFD (for chip ID and flash unlock) and it still boots. So it's not chip compatibility or corrupted descriptor.
The only sign of life I got is the bootblock banner left in the SPI console. My PCI POST card is showing nothing, but knowing that it sits on a PCIe-PCI bridge (ASM1063 that P8Z77M-PRO does not have) and not knowing if it needs software init to work, I am now trying to pull POST codes off the LPC bus over the TPM header, using an Arduino Due. Do I have to add some early init to have port 80 accesses sent to LPC bus for this to work?
You have to tell coreboot where to route LPC post codes to. It defaults to "None", but you can choose PCI or LPC. I have never tried to print post codes with coreboot, though. I would try using the serial port though, as it is more practical for debugging than post codes.
Thanks for your help Keith _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
Best regards,
Angel Pons