2013/10/29 Idwer Vollering <[email protected]>: > 2013/10/29 Haywood-Evans Matthew <[email protected]>: >> Hi, >> >> I am presently looking at trying to get Coreboot up and running on an >> ASUS F2A85-M system. I am however running into some issues. >> >> Using a bus pirate and flashrom I first backed up the original bios, >> then erased the chip and restored the bios to ensure I had the basic >> read/write capability working and this all worked correctly. > > My board came with AMI (U)EFI v5018. > > I was able to erase, and write to, every part of the flash chip with > that particular version while leaving the chip in its socket. > v6404 wasn't that permissive anymore. > >> >> Then I proceeded to build a standard coreboot image using seabios as a >> payload (using an external VGA card), leaving all the settings as >> default apart from selecting the motherboard, upon writing this to the >> flash and rebooting the machine I had no output from the VGA adapter and >> nothing from the serial port. > > SeaBIOS should run the optionrom that is present on/for the offboard GPU. > >> >> Next I removed the external VGA and followed the instructions at >> http://www.coreboot.org/ASUS_F2A85-M taking a local copy of the VGA >> bios and embedding that into the coreboot image, rebuilt and re-flashed >> to get the same result as previous. > > The APU's PCI ID ofcourse varies, these lines are there (in dmesg and > lspci -nn) when booting linux: > > [ 0.047202] smpboot: CPU0: AMD A8-5500 APU with Radeon(tm) HD > Graphics (fam: 15, model: 10, stepping: 01) > > 00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. > [AMD/ATI] Trinity [Radeon HD 7560D] [1002:9904] > >> >> After some investigation I created a serial ice image and loaded that, >> this worked giving me a serial ice prompt on the COM port. Using this, >> and the QEMU provided, I proceeded to try and run the bios files created >> in the last two stages, in the serial ice I see a lot of reads (takes >> about 20 mins) before it exits with Bad memory pointer and core dumps. >> >> I have been building the coreboot images on a different machine to the >> target (Core i7) but have rebuilt them with the crossgcc in case issues >> with the development PC where causing the issue, however I got the same >> results. >> >> I am now at a loss of where to go next to get this working and would >> appreciate any insight. >> >> The target system I am working on is >> F2A85-M >> 4GB Corsair Ram > > What's the full name of that memory module? More important: what's its > working voltage? > One can confirm from coreboot's menu: mainboard -> DDR3 memory voltage > >> AMD A10 6800K FM2 CPU > > Assuming that the PCI ID of the abovementioned APU is 1002:990c, *and > the sha1sum of the with dd from memory extracted VGA optionrom (while > the AMI software is booted) is > e8fd60fd8746ab7f1a997897807d3fdbd119bf7e*, I can provide a working > image: http://ra.openbios.org/~idwer/f2a85-m/coreboot_1002_990c.rom
I almost forgot to mention that this is built for 1,5V memory. > > See http://pci-ids.ucw.cz/read/PC/1002/990c > >> >> Thanks >> Matt > > HTH, > > Idwer -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
