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authorLinus Walleij <linus.walleij@linaro.org>2016-01-04 02:18:28 +0100
committerOlof Johansson <olof@lixom.net>2016-01-07 06:30:13 +0100
commita461a3ecfc7eec8bd9c12475198fbd0b27377ded (patch)
tree2108cb4cdb98dfbf8875510d8f014f82ef21866a
parent694341cf2027504b6f63aaf4405b3af9ff41c63e (diff)
downloadleg-kernel-a461a3ecfc7eec8bd9c12475198fbd0b27377ded.tar.gz
ARM: nomadik: set latencies to 8 cycles
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>
-rw-r--r--arch/arm/boot/dts/ste-nomadik-stn8815.dtsi6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index 314f59c12162..d0c743853318 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -25,9 +25,9 @@
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 {