I followed instruction from http://www.coreboot.org/AMD_SimNow . All compilation was done with no error. But SimNow not accept my coreboot.rom.
The error message is
BIOS ROM file is the wrong size for this BSD. Please either point the memdevice to the correct BIOS ROM file, or configure the memdevice to be the correct size.
I suposed this error was caused by header mismatch. Generic ROM file has '0xaa 0xbb 0xcc 0xdd' signature at address 0x00000000. But coreboot.rom does not.
On real machine which has coreboot.rom flashed, stopped BIOS loading after first access.
How do I get a correct coreboot.rom?
On Mon, Aug 10, 2009 at 7:56 PM, 유택연 jaagar@gmail.com wrote:
I followed instruction from http://www.coreboot.org/AMD_SimNow . All compilation was done with no error. But SimNow not accept my coreboot.rom.
The error message is
BIOS ROM file is the wrong size for this BSD.
The default BIOS size for SimNOW isn't the same as the default size for Coreboot.
Please either point the memdevice to the correct BIOS ROM file, or configure the memdevice to be the correct size.
You can recompile Coreboot to be the same size as the original BIOS, or you can change the parameters of the memdevice.
In the same window where you set the name of the file for the BIOS, set the size and the address to 0x100000000-size.
For example, for a 512KB Coreboot image, you'll set the size to 0x80000 and the address to 0xfff80000.
I suposed this error was caused by header mismatch. Generic ROM file has '0xaa 0xbb 0xcc 0xdd' signature at address 0x00000000. But coreboot.rom does not.
There is no header check for the ROM. It just starts executing the code it finds at 0xfffffff0.
On real machine which has coreboot.rom flashed, stopped BIOS loading after first access.
Which real machine? Which ROM?
How do I get a correct coreboot.rom?
Make sure the size of the image is correct, and that the board matches the board you're using.
Good luck, Myles
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Myles Watson -
유택연