On Fri, Jan 23, 2009 at 04:00:24PM +0800, Yunchuan Qin wrote: > I noticed that there is two version for seabios on 20081108. The > bios.bin.elf-20081108-viavga works fine for me but the source code I > download from git tree cannot.
I sent an email separately with the steps to build a working version from git. (See below for a resend.) > The log says: > > Scan for option roms Found option rom with bad checksum: loc=000c0000 > len=64000 sum=000000ff That is very strange. How did you extract your VGA bios? -Kevin On Fri, Jan 23, 2009 at 11:16:02PM +0800, Yunchuan Qin wrote: > Hi, Kevin I have tested the precompiled file > bios.bin.elf-20081108-VIAVGA. It works well on my EPIA-ML board. > And now, I want to compile it by myself. But my compiled version cannot > display any word on the screen. > Does there some difference configuration > between bios.bin.elf-20081108-viavga and bios.bin.elf-20081108? Yes. In order to use SeaBIOS with via vga, you need to edit src/config.h and turn on: CONFIG_COREBOOT CONFIG_DEBUG_SERIAL and turn off: CONFIG_OPTIONROMS_DEPLOYED Finally, you need to set: #define OPTIONROM_BDF_1 0x0100 #define OPTIONROM_MEM_1 0xfffc0000 The actual memory address depends on your rom size. (The above assumes you have the latest version from git.) -Kevin -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
