| Message ID | 1453933451-6716-1-git-send-email-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi index d0c743853318..50c256f0fd98 100644 --- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi +++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi @@ -25,9 +25,10 @@ cache-sets = <512>; cache-line-size = <32>; /* At full speed latency must be >=2 */ - arm,tag-latency = <8>; - arm,data-latency = <8 8>; - arm,dirty-latency = <8>; + arm,tag-latency = <2>; + arm,data-latency = <2 2>; + arm,dirty-latency = <2>; + arm,write-allocate-override; }; mtu0: mtu@101e2000 {
There were earlier problems with the L210 cache on the Nomadik. It turns out that to run the cache at full speed, you need to set the "write allocate override" bit in the auxilary control register. Now that this bit can be set from the device tree, we can set down the latencies to 2 again. Cc: stable@vger.kernel.org Fixes: a461a3ecfc7e ("ARM: nomadik: set latencies to 8 cycles") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html