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rk29: L2 Data RAM latency set to 4 cycles, Tag RAM latency set to 3 cycles, suggested...
author
黄涛
<huangtao@rock-chips.com>
Mon, 11 Jul 2011 12:26:15 +0000
(20:26 +0800)
committer
黄涛
<huangtao@rock-chips.com>
Mon, 11 Jul 2011 12:28:10 +0000
(20:28 +0800)
arch/arm/mm/proc-v7.S
patch
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diff --git
a/arch/arm/mm/proc-v7.S
b/arch/arm/mm/proc-v7.S
index f5e368dc0912dab82cc778552018813b7d075466..9b26be949ef2512a58b70ef4bddb776eff2eab6e 100644
(file)
--- a/
arch/arm/mm/proc-v7.S
+++ b/
arch/arm/mm/proc-v7.S
@@
-271,8
+271,8
@@
__v7_setup:
bic r5, r5, #1 << 29 @ L2 data RAM read multiplexer select: 0 = two cycles
bic r5, r5, #7 << 6
bic r5, r5, #15
- orr r5, r5, #
3 << 6 @ Tag RAM latency: b011 = 4
cycles
- orr r5, r5, #
4 @ Data RAM latency: b0100 = 5
cycles
+ orr r5, r5, #
2 << 6 @ Tag RAM latency: b010 = 3
cycles
+ orr r5, r5, #
3 @ Data RAM latency: b0011 = 4
cycles
mcr p15, 1, r5, c9, c0, 2
#endif