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ARM: nomadik: set latencies to 8 cycles

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The Nomadik has sporadic crashes because of these latencies, setting
them to max makes the platform work nicely, so use this values for
now.

These latencies were set to 2 since the Nomadik platform was merged,
but I suspect they never took effect until the right size and
associativity for the cache was specified in the device tree and
that is why the crash comes now.

Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Linus Walleij 2016-01-04 02:18:28 +01:00 committed by Olof Johansson
parent 694341cf20
commit a461a3ecfc
1 changed files with 3 additions and 3 deletions
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6
arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
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@ -25,9 +25,9 @@ L2: l2-cache {
cache-sets = <512>;
cache-line-size = <32>;
/* At full speed latency must be >=2 */
arm,tag-latency = <2>;
arm,data-latency = <2 2>;
arm,dirty-latency = <2>;
arm,tag-latency = <8>;
arm,data-latency = <8 8>;
arm,dirty-latency = <8>;
};
mtu0: mtu@101e2000 {