From 95f3df6bcb89d370c57b7165f55c5a409d011c8e Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 7 Apr 2006 13:17:15 +0100 Subject: [ARM] Fix SA110/SA1100 cache flushing We had two implementations for flushing the cache, which meant StrongARM caches weren't being correctly flushed. Fix this by always using the v4wb_flush_kern_cache_all method, rather than duplicating it. Signed-off-by: Russell King --- arch/arm/mm/proc-sa110.S | 25 ++++--------------------- 1 file changed, 4 insertions(+), 21 deletions(-) (limited to 'arch/arm/mm/proc-sa110.S') diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S index c916a6cae40..a2dd5ae1077 100644 --- a/arch/arm/mm/proc-sa110.S +++ b/arch/arm/mm/proc-sa110.S @@ -26,22 +26,7 @@ * the cache line size of the I and D cache */ #define DCACHELINESIZE 32 -#define FLUSH_OFFSET 32768 - .macro flush_110_dcache rd, ra, re - ldr \rd, =flush_base - ldr \ra, [\rd] - eor \ra, \ra, #FLUSH_OFFSET - str \ra, [\rd] - add \re, \ra, #16384 @ only necessary for 16k -1001: ldr \rd, [\ra], #DCACHELINESIZE - teq \re, \ra - bne 1001b - .endm - - .data -flush_base: - .long FLUSH_BASE .text /* @@ -145,13 +130,11 @@ ENTRY(cpu_sa110_dcache_clean_area) */ .align 5 ENTRY(cpu_sa110_switch_mm) - flush_110_dcache r3, ip, r1 - mov r1, #0 - mcr p15, 0, r1, c7, c5, 0 @ invalidate I cache - mcr p15, 0, r1, c7, c10, 4 @ drain WB + str lr, [sp, #-4]! + bl v4wb_flush_kern_cache_all @ clears IP mcr p15, 0, r0, c2, c0, 0 @ load page table pointer - mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs - mov pc, lr + mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs + ldr pc, [sp], #4 /* * cpu_sa110_set_pte(ptep, pte) -- cgit v1.2.3