Before memcpying,you need to shadow on 0xc0000-0xcffff ,please refer to your northbridge datasheet,and set a register on host-pci bridge(device 0) correctly !
From: Trellix78@aol.com To: linuxbios@clustermatic.org Subject: epia m vga + memcpy failed Date: Mon, 06 Sep 2004 18:30:27 -0400
I was trying to figure why VGA wasn't being properly set on my epia m when I found that the code in mainboard.c was looking for device id 0x3123 while my epia m has device id 0x3122 for the CLE266. After changing the id, memcpy is failing to copy the bios code. Anyone know why that could be? Here's a piece of the log: . . . setting ethernet Assigning IRQ 11 to 0:12.0 Readback = 11 setting vga Assigning IRQ 11 to 1:0.0 Readback = 11 setting pci slot setting vt8235 slot Assigning IRQ 5 to 0:11.1 Readback = 5 Assigning IRQ 12 to 0:11.5 Readback = 12 INSTALL REAL-MODE IDT DO THE VGA BIOS found VGA: vid=1106, did=3122 Setting up VGA, VGABIOS_START: 0xfffe0000 First 16 bytes of VGA_ROM: 0x55 0xaa 0x7d 0xe9 0x26 0x7f 0x5e 0x1b 0xfa
0xf9 0xf4 0x82 0x0 0x0 0x0 0x0
Failed to copy VGA BIOS to 0xc0000 First 16 bytes of 0xc0000: 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
0xff 0xff 0xff 0xff 0xff 0xff 0xff
setting VGA up anyway bus/devfn = 0x100 biosint: # 0x6, eax 0x100 ebx 0x100 ecx 0x100 edx 0x12 biosint: ebp 0x11a2c esp 0xff6 edi 0xda8c esi 0x12350 biosint: ip 0x3 cs 0xc000 flags 0x46 biosint: Oops, exception 6 Stack contents: 0x0003 0xc000 0x0046 0x4d75 0x0000 biosint: Bailing out Checking IRQ routing tables... . . . _______________________________________________ Linuxbios mailing list Linuxbios@clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios
_________________________________________________________________ 与联机的朋友进行交流，请使用 MSN Messenger: http://messenger.msn.com/cn