| Message ID | 1449512659-16688-5-git-send-email-geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Simon Horman |
| Headers | show |
diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi index 33205ecb2a596979..59f8a4fcda1dee95 100644 --- a/arch/arm/boot/dts/r8a7793.dtsi +++ b/arch/arm/boot/dts/r8a7793.dtsi @@ -42,9 +42,18 @@ < 937500 1000000>, < 750000 1000000>, < 375000 1000000>; + next-level-cache = <&L2_CA15>; }; }; + L2_CA15: cache-controller@0 { + compatible = "cache"; + arm,data-latency = <4 4 0>; + arm,tag-latency = <3 3 3>; + cache-unified; + cache-level = <2>; + }; + gic: interrupt-controller@f1001000 { compatible = "arm,gic-400"; #interrupt-cells = <3>;
Add a device node for the L2 cache, and link the CPU node to it. The L2 cache for the Cortex-A15 CPU cores is 1 MiB large (organized as 64 KiB x 16 ways), and requires the following settings: - Tag RAM latency: 3 cycles, - Data RAM latency: 4 cycles, - Data RAM setup: 0 cycles. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- What are the DT bindings for a Cortex-A15 L2 cache controller? v2: - Drop (incorrect) optional cache-{size,sets,{block,line}-size} properties, as this information is auto-detected, - Integrate linking CPU to L2 cache into this patch, - Extracted from series "[PATCH/RFC 00/15] ARM: shmobile: R-Car: Add SYSC PM Domain DT Support". --- arch/arm/boot/dts/r8a7793.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)