* Vincente Tsou vincentetsou@nexcom.com.tw [060511 11:30]:
My target board is an AMD Opteron (chipset: K8 / 8111 / 8131) mainboard, it is similar to Tyan s2880 / s2881 / s2882.
So I base on Tyan s2880 to change some config file to compile a linuxbios.rom, but it doesn't work.
Following is what do I changed in s2880: 3. generated irq_tables.c by getpir.c and replaced the original one.
getpir doesnt work for opteron boards. you should change an existing one
compile and burn it in rom.
After I boot up the target board, it always alert emergency beep.
Some onboard watchdog? this one should probably be disabled until it is set up correctly.
Then, I unmark some debug message in 'src/northbridge/amd/amdk8/raminit.c' to see where is it hang. The last step is hang on setup_default_resource_map() in 'src/mainboard/tyan/ s2880/cache_as_ram_auto.c',
You need to change the board target to use your own resourcemap.c file. The southbridge is probably not connected to Link0 of CPU0.
i.e. - PCI_ADDR(0, 0x18, 1, 0xBC), 0x00000048, 0x00ffff00, + PCI_ADDR(0, 0x18, 1, 0xBC), 0x00000048, 0x00ffff10, // Link 1 CPU 0
- PCI_ADDR(0, 0x18, 1, 0xC4), 0xFE000FC8, 0x01fff000, + PCI_ADDR(0, 0x18, 1, 0xC4), 0xFE000FC8, 0x01fff010, // CPU0 LDT1
I can see it from serial console ( as attachment again. )
See mainboard/agami/aruma/resourcemap.c for an example
Stefan