(1) ECS P6stmt board use SDRAM synchronous mode. I've got P6STMT motherboard based on sis630et. It's strange that the 0x8e is equal 0 which I have read from linux running on the board, that means the board uses SDRAM synchronous mode. (2) The board halt after setting 0x8c~8f value same as bios setting. I set 0x8c~8f (in dll.inc) values to which I have read under linux. But ipl can't copy linuxbios from Doc to RAM. I have tested doc_mil.inc. When the second "call doc_reset" that is the second time to use RAM stack(%ss=$0x400, %sp=$0x0), the board halt. (3) winfast 6300 Max board use SDRAM asynchronous mode. I have read 0x8c~8f values of winfast 6300. The value of 0x8e is 0x3. So winfast6300 use SDRAM asynchronous mode. IPL can boot linuxbios and linux successfully. (4)under p6stmt Even I set register 0x50~0x5A (except 0x52 and 0x57) value to what I have read from its bios. IPL can't copy linuxbios to RAM either.
Who has met the same experience? I need help.
zhu
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zhu shi song