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>

diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index 314f59c121620868fae063a8c9fc13d323b5400b..d0c74385331803383d5296d7157516aa63c63758 100644 (file)
--- 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 {