diff options
author | Will Deacon <will.deacon@arm.com> | 2010-09-27 17:55:15 +0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-27 17:57:36 +0400 |
commit | 2de59fea8b3095d1df4c729fda041625930aab4f (patch) | |
tree | b7d5e28e4da11607c74a7ed99c3bd2f93473a8fd /arch/arm/mach-u300/include/mach/gpio.h | |
parent | 2de5c00ac06c8983ab33ad51a8341584f1cf42c3 (diff) | |
download | linux-2de59fea8b3095d1df4c729fda041625930aab4f.tar.xz |
ARM: 6411/1: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile
The PL310 on the ct-ca9x4 tile for the Versatile Express does not need
to add additional latency when accessing its cache RAMs. Unfortunately,
the boot monitor sets this up for an 8-cycle delay on reads and writes,
resulting in greatly reduced memory performance when the L2 cache is
enabled.
This patch sets the L2 RAM latencies to the correct value of 1 cycle
on the ct-ca9x4 tile before enabling the L2 cache.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-u300/include/mach/gpio.h')
0 files changed, 0 insertions, 0 deletions