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| author | Deepak Saxena <dsaxena@plexity.net> | 2006-05-30 14:36:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-05-30 20:33:20 -0700 |
| commit | e6ed89ac9f5da16fea5111651b6de0ff0a76a5c2 (patch) | |
| tree | 99f8afada42812b3ca5e1546584dc6e915b039f6 /arch/arm/mm/proc-xsc3.S | |
| parent | 9a8fca0499c611ab37b5c0d4481ca09d3f6e8101 (diff) | |
| download | blackbird-op-linux-e6ed89ac9f5da16fea5111651b6de0ff0a76a5c2.tar.gz blackbird-op-linux-e6ed89ac9f5da16fea5111651b6de0ff0a76a5c2.zip | |
[PATCH] ARM: explicitly disable BTB on ixp2350
We don't enable the BTB on the ixp2350 as that can cause weird
crashes (erratum #42.) However, some bootloaders enable the BTB,
which means that we have to disable the BTB explicitly.
Found thanks to Tom Rini.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/arm/mm/proc-xsc3.S')
| -rw-r--r-- | arch/arm/mm/proc-xsc3.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index 80873b36c3f7..8d32e21fe151 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -427,12 +427,13 @@ __xsc3_setup: #endif mcr p15, 0, r0, c1, c0, 1 @ set auxiliary control reg mrc p15, 0, r0, c1, c0, 0 @ get control register - bic r0, r0, #0x0200 @ .... ..R. .... .... bic r0, r0, #0x0002 @ .... .... .... ..A. orr r0, r0, #0x0005 @ .... .... .... .C.M #if BTB_ENABLE + bic r0, r0, #0x0200 @ .... ..R. .... .... orr r0, r0, #0x3900 @ ..VI Z..S .... .... #else + bic r0, r0, #0x0a00 @ .... Z.R. .... .... orr r0, r0, #0x3100 @ ..VI ...S .... .... #endif #if L2_CACHE_ENABLE |
