[PXA320] How to find I/O registers, base address of ASIX ethernet chip?

[Dennis Semakin]

>  > No, I cannot access 0x1000_0000 from U-Boot. The system hangs, when I access to this address
>  This sounds like a missing clock.  Ah, and Daniel already asked that,
>  too: "Did you switch on the clock for the static bus?"
>  

If you asked about Clock Configuration Register (MEMCLKCGF), then
Its value is 0x30003. 

In U-Boot:
$ md.l 0x4a000068
4a000068: 00030003 00000000 00000000 00000000    ................
4a000078: 00000000 00000000 00020000 00020000    ................

How else can I switch on the clock for the static bus?

Thanks
Best regards
Dennis Semakin