Hi Gergely,
>Понедельник, 4 декабря 2017, 13:45 +01:00 от Gergely Kiss ><[email protected]>: > >Hi, > >I'm working on porting Coreboot to the ASUS AM1I-A motherboard and I'm a bit >stuck. > >I could successfully build Coreboot but after flashing the ROM, my board looks >to be bricked... > >Once powering on the board, the CPU fan spins up but then nothing happens, I >can't see any output on the serial console (the connection was tested prior to >flashing by running a getty on the COM port and it was working fine). > >The board is not fried as I can load back the vendor firmware and it boots up >absolutely fine. > >I'd like to find out why Coreboot would not start but don't know what tool >would be the most suitable for debugging. > >The chipset and the CPU is already supported by Coreboot but the SuperIO chip >is not. It looks to me the serial interfaces of ITE chips work the same for >all models so I believe using the common code for ITE SIO chips should work >but I'm unsure (no datasheet available). >Shall I use a PCIe serial interface card or rather try EHCI debugging? I'm >afraid in case the boot process halts at some early stage (like before >romstage) then I won't see any useful output using any of those. > >Using a POST card would be a better approach I think but my board has a single >PCIe 4x slot which seems to be unsupported by POST cards I could find on the >web (except one from a Chinese vendor but it costs about $1k which is way too >expensive) The 20-pin TPM connector on this board[1] looks really close to the legacy LPC one[2], so maybe try a POST card with LPC support? [1]: http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM1/AM1I-A/E8963_AM1I-A.pdf [2]: https://www.usbid.com/datasheets/usbid/2000/2000-q1/lpc_mod_spec72.pdf > >Here's my WIP code for reference: > >https://github.com/kissg1988/coreboot/tree/master/src/mainboard/asus/am1i-a > >Any idea how to proceed? > >Thanks, >Gergely > >-- >coreboot mailing list: [email protected] >https://mail.coreboot.org/mailman/listinfo/coreboot WBR, Igor mailto:[email protected] -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
