In message 45348BF2.000055.03554@bj163app78.163.com you wrote:
I've been thinking this question for long time.There's only one supported board of x86 arch. But it's different with PC. There's no flash on PC's board, so where should u-boot be stored? I think it may
Most boards do have flashon board. They use it to store the BIOS.
be hdd, correct? And PC have rom-bios. I'm trying to make u-boot work
Usually that's not ROM, but flash.
for PC and find it so difficult.Is there anybody has done this work? Can the source for sc520 board be used on PC with some fix?
If you accept that "some fix" is a big, non-trivial project which requires an intimate knowledge of your mainboard and it's chipset (including access to related developer's documentation which is not easy to find), then the answer is yes.
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Best regards,
Wolfgang Denk