ARM: dts: r8a7790: Add L2 cache-controller nodes

Add device nodes for the L2 caches, and link the CPU nodes to them.

The L2 cache for the Cortex-A15 CPU cores is 2 MiB large (organized as
128 KiB x 16 ways).

The L2 cache for the Cortex-A7 CPU cores is 512 KiB large (organized as
64 KiB x 8 ways).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 24b773a..ba4c253 100644 (file)
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -52,6 +52,7 @@
                        voltage-tolerance = <1>; /* 1% */
                        clocks = <&cpg_clocks R8A7790_CLK_Z>;
                        clock-latency = <300000>; /* 300 us */
+                       next-level-cache = <&L2_CA15>;
 
                        /* kHz - uV - OPPs unknown yet */
                        operating-points = <1400000 1000000>,
@@ -67,6 +68,7 @@
                        compatible = "arm,cortex-a15";
                        reg = <1>;
                        clock-frequency = <1300000000>;
+                       next-level-cache = <&L2_CA15>;
                };
 
                cpu2: cpu@2 {
@@ -74,6 +76,7 @@
                        compatible = "arm,cortex-a15";
                        reg = <2>;
                        clock-frequency = <1300000000>;
+                       next-level-cache = <&L2_CA15>;
                };
 
                cpu3: cpu@3 {
@@ -81,6 +84,7 @@
                        compatible = "arm,cortex-a15";
                        reg = <3>;
                        clock-frequency = <1300000000>;
+                       next-level-cache = <&L2_CA15>;
                };
 
                cpu4: cpu@4 {
@@ -88,6 +92,7 @@
                        compatible = "arm,cortex-a7";
                        reg = <0x100>;
                        clock-frequency = <780000000>;
+                       next-level-cache = <&L2_CA7>;
                };
 
                cpu5: cpu@5 {
@@ -95,6 +100,7 @@
                        compatible = "arm,cortex-a7";
                        reg = <0x101>;
                        clock-frequency = <780000000>;
+                       next-level-cache = <&L2_CA7>;
                };
 
                cpu6: cpu@6 {
@@ -102,6 +108,7 @@
                        compatible = "arm,cortex-a7";
                        reg = <0x102>;
                        clock-frequency = <780000000>;
+                       next-level-cache = <&L2_CA7>;
                };
 
                cpu7: cpu@7 {
@@ -109,6 +116,7 @@
                        compatible = "arm,cortex-a7";
                        reg = <0x103>;
                        clock-frequency = <780000000>;
+                       next-level-cache = <&L2_CA7>;
                };
        };
 
@@ -131,6 +139,18 @@
                };
        };
 
+       L2_CA15: cache-controller@0 {
+               compatible = "cache";
+               cache-unified;
+               cache-level = <2>;
+       };
+
+       L2_CA7: cache-controller@1 {
+               compatible = "cache";
+               cache-unified;
+               cache-level = <2>;
+       };
+
        gic: interrupt-controller@f1001000 {
                compatible = "arm,gic-400";
                #interrupt-cells = <3>;