Hi all,
I have a question regarding MMU. I've built SPARC based small embedded system. at this system addresses *0x00000000-0x00008000* (32KB) belong to ROM and *0x80000000 - 0x80001000* to HW devices. the problem is that when a code from first ROM page accesses a HW device register there is an infinite loop. - cpu_sparc_handle_mmu_fault is called to bring page 0 - cpu_sparc_handle_mmu_fault is called to bring 0x80000000 and flushes 0x00000000 - cpu_sparc_handle_mmu_fault is called to bring 0x00000000 and flushes 0x80000000 ... this can be fixed if I set CPU_TLB_BITS to be 20 bits. is there a better solution? Michael