diff options
Diffstat (limited to 'arch/arm/mm/proc-sa1100.S')
| -rw-r--r-- | arch/arm/mm/proc-sa1100.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S index 777ad99c143955..0a2107ad4c32f8 100644 --- a/arch/arm/mm/proc-sa1100.S +++ b/arch/arm/mm/proc-sa1100.S @@ -2,6 +2,7 @@ * linux/arch/arm/mm/proc-sa1100.S * * Copyright (C) 1997-2002 Russell King + * hacked for non-paged-MM by Hyok S. Choi, 2003. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -77,7 +78,9 @@ ENTRY(cpu_sa1100_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB +#ifdef CONFIG_MMU mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs +#endif mrc p15, 0, ip, c1, c0, 0 @ ctrl register bic ip, ip, #0x000f @ ............wcam bic ip, ip, #0x1100 @ ...i...s........ @@ -142,12 +145,16 @@ ENTRY(cpu_sa1100_dcache_clean_area) */ .align 5 ENTRY(cpu_sa1100_switch_mm) +#ifdef CONFIG_MMU str lr, [sp, #-4]! bl v4wb_flush_kern_cache_all @ clears IP mcr p15, 0, ip, c9, c0, 0 @ invalidate RB mcr p15, 0, r0, c2, c0, 0 @ load page table pointer mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs ldr pc, [sp], #4 +#else + mov pc, lr +#endif /* * cpu_sa1100_set_pte(ptep, pte) @@ -156,6 +163,7 @@ ENTRY(cpu_sa1100_switch_mm) */ .align 5 ENTRY(cpu_sa1100_set_pte) +#ifdef CONFIG_MMU str r1, [r0], #-2048 @ linux version eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY @@ -177,6 +185,7 @@ ENTRY(cpu_sa1100_set_pte) mov r0, r0 mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c10, 4 @ drain WB +#endif mov pc, lr __INIT @@ -186,7 +195,9 @@ __sa1100_setup: mov r0, #0 mcr p15, 0, r0, c7, c7 @ invalidate I,D caches on v4 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer on v4 +#ifdef CONFIG_MMU mcr p15, 0, r0, c8, c7 @ invalidate I,D TLBs on v4 +#endif mrc p15, 0, r0, c1, c0 @ get control register v4 ldr r5, sa1100_cr1_clear bic r0, r0, r5 |