Question: about Physical Address mapping

["Dennis.Yxun" <dennis.yxun@gmail.com>]

HI ALL:
   I have a problem, that our MIPS hardware put registers location from 0x7000,0000 -0x7040,0000.
So, I need to init TLB to access those registers.
   My question is: can I map those range to Kseg2 (mapped,uncached)? I found "add_wired_entry" sit in

kernel code, seems I should use this function. 

   I found code in arch/mips/jazz/irq.c, and the comment tells me
/* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
   add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);

does that mean after add_wired_entry, virtual address 0xe400,0000 map to physical address 0x600005C0?
why the address is 0x6000,05C0, not 0x6000,0000

Thanks

Dennis