need help, cs5536 init process

[Songmao Tian]

I have encounted one problem when I use cs5536,
I can't access the I/O space just after configuring the CS5536 Diverse
Device Module's LBAR MSR registers. and I just followlled the
linuxbios's configuration:
CS5536_MSR_WRITE(0x5140000B, 0x4000, 0xf001);
CS5536_MSR_WRITE(0x5140000C, 0x4100, 0xf001);
CS5536_MSR_WRITE(0x5140000D, 0x4200, 0xf001);
CS5536_MSR_WRITE(0x5140000E, 0x4A00, 0xf001);
CS5536_MSR_WRITE(0x5140000F, 0x4B00, 0xf001);
after that, I take an I/O access inw(), and without data back(all zero).

NOTE : I just use the CS5536 as the sourthbridge with a non-geode amd
cpu. by the way, I'm very eager to know the I/O space configuration
flow.... 3x