From: Biju Das <biju.das@xxxxxxxxxxxxxx>
This patch adds definitions for L2 cache for the Cortex-A53 CPU
cores (512 KiB in size, organized as 32 KiB x 16 ways), adds
Cortex-A53 CPU cores (setting a total of 6 cores, 2 x Cortex-A57
+ 4 x Cortex-A53), and finally enables the performance monitor
unit for the Cortex-A53 cores on the R8A774A1 SoC.
Based on work done for r8a7796 SoC.
Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
Reviewed-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/r8a774a1.dtsi | 66 ++++++++++++++++++++++++++++---
1 file changed, 61 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
index 856bd37..1d847cf 100644
--- a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
@@ -79,12 +79,59 @@
clocks =<&cpg CPG_CORE 0>;
};
+ a53_0: cpu@100 {
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x100>;
+ device_type = "cpu";
+ power-domains = <&sysc 5>;
+ next-level-cache = <&L2_CA53>;
+ enable-method = "psci";
+ clocks =<&cpg CPG_CORE 1>;
+ };
+
+ a53_1: cpu@101 {
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x101>;
+ device_type = "cpu";
+ power-domains = <&sysc 6>;
+ next-level-cache = <&L2_CA53>;
+ enable-method = "psci";
+ clocks =<&cpg CPG_CORE 1>;
+ };
+
+ a53_2: cpu@102 {
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x102>;
+ device_type = "cpu";
+ power-domains = <&sysc 7>;
+ next-level-cache = <&L2_CA53>;
+ enable-method = "psci";
+ clocks =<&cpg CPG_CORE 1>;
+ };
+
+ a53_3: cpu@103 {
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x103>;
+ device_type = "cpu";
+ power-domains = <&sysc 8>;
+ next-level-cache = <&L2_CA53>;
+ enable-method = "psci";
+ clocks =<&cpg CPG_CORE 1>;
+ };
+
L2_CA57: cache-controller-0 {
compatible = "cache";
power-domains = <&sysc 12>;
cache-unified;
cache-level = <2>;
};
+
+ L2_CA53: cache-controller-1 {
+ compatible = "cache";
+ power-domains = <&sysc 21>;
+ cache-unified;
+ cache-level = <2>;
+ };
};
extal_clk: extal {
@@ -108,6 +155,15 @@
clock-frequency = <0>;
};
+ pmu_a53 {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts-extended = <&gic GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&a53_0>, <&a53_1>, <&a53_2>, <&a53_3>;
+ };
+
pmu_a57 {
compatible = "arm,cortex-a57-pmu";
interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
@@ -852,7 +908,7 @@
<0x0 0xf1040000 0 0x20000>,
<0x0 0xf1060000 0 0x20000>;
interrupts = <GIC_PPI 9
- (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+ (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_HIGH)>;
clocks = <&cpg CPG_MOD 408>;
clock-names = "clk";
power-domains = <&sysc 32>;
@@ -912,10 +968,10 @@
timer {
compatible = "arm,armv8-timer";
- interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
- <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
- <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
- <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+ interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>,
+ <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>,
+ <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>,
+ <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>;
};
/* External USB clocks - can be overridden by the board */
--
2.7.4
