Hi Keith, PCI-to-PCI bridge need to be configured before you can use PCI POST card.
Default post code are send out to port 80h. Depending on the chipset (and your needs) you need to enable the port80 to the right channel PCI/LPC. Best regards, Frans Hendriks Eltan B.V. -----Original Message----- From: Angel Pons [mailto:th3fan...@gmail.com] Sent: vrijdag 28 februari 2020 10:30 To: Keith Hui <buu...@gmail.com> Cc: coreboot <coreboot@coreboot.org> Subject: [coreboot] Re: Still need assistance porting to ASUS P8Z77-M Hi Keith, On Fri, Feb 28, 2020 at 7:18 AM Keith Hui <buu...@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-le...@coreboot.org Best regards, Angel Pons _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
