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ARM: tegra: Enable PL310 dynamic clock gating
author
Todd Poynor
<toddpoynor@google.com>
Wed, 16 Feb 2011 20:25:36 +0000
(12:25 -0800)
committer
Todd Poynor
<toddpoynor@google.com>
Wed, 16 Feb 2011 21:30:34 +0000
(13:30 -0800)
The cache controller will stop its clock when idle after several
clock cycles.
Change-Id: Ifc9997d4e7fd4f1e3c6129bac2fd42f8995a069e
Signed-off-by: Todd Poynor <toddpoynor@google.com>
arch/arm/mach-tegra/common.c
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diff --git
a/arch/arm/mach-tegra/common.c
b/arch/arm/mach-tegra/common.c
index 5283a17f3d2b7112402d52bbf52d1b37929af2a6..b1275e7207f8f0cbc4ff02d30966d71067c6d3cf 100644
(file)
--- a/
arch/arm/mach-tegra/common.c
+++ b/
arch/arm/mach-tegra/common.c
@@
-89,6
+89,7
@@
void __init tegra_init_cache(void)
writel(0x331, p + L2X0_TAG_LATENCY_CTRL);
writel(0x441, p + L2X0_DATA_LATENCY_CTRL);
writel(7, p + L2X0_PREFETCH_OFFSET);
+ writel(2, p + L2X0_PWR_CTRL);
l2x0_init(p, 0x7C480001, 0x8200c3fe);
#endif