From: Duy Nguyen <duy.nguyen.rh@xxxxxxxxxxx>
Complete the description of the Cortex-A76 CPU cores and L3 cache
controllers on the Renesas R-Car V4M (R8A779H0) SoC, including CPU
topology and PSCI support for enabling CPU cores.
Signed-off-by: Duy Nguyen <duy.nguyen.rh@xxxxxxxxxxx>
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Changes compared to the BSP:
- Rename L3_CA76_0 label to L3_CA76,
- Move psci node to preserve sort order (alphabetical),
- Drop GIC_CPU_MASK_SIMPLE changes, as GICv3 PPI interrupt specifiers
have no such masks.
---
arch/arm64/boot/dts/renesas/r8a779h0.dtsi | 50 +++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index f47695158d991288..88c5dcbc38d59dab 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -18,12 +18,57 @@ cpus {
#address-cells = <1>;
#size-cells = <0>;
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&a76_0>;
+ };
+ core1 {
+ cpu = <&a76_1>;
+ };
+ core2 {
+ cpu = <&a76_2>;
+ };
+ core3 {
+ cpu = <&a76_3>;
+ };
+ };
+ };
+
a76_0: cpu@0 {
compatible = "arm,cortex-a76";
reg = <0>;
device_type = "cpu";
power-domains = <&sysc R8A779H0_PD_A1E0D0C0>;
next-level-cache = <&L3_CA76>;
+ enable-method = "psci";
+ };
+
+ a76_1: cpu@100 {
+ compatible = "arm,cortex-a76";
+ reg = <0x100>;
+ device_type = "cpu";
+ power-domains = <&sysc R8A779H0_PD_A1E0D0C1>;
+ next-level-cache = <&L3_CA76>;
+ enable-method = "psci";
+ };
+
+ a76_2: cpu@200 {
+ compatible = "arm,cortex-a76";
+ reg = <0x200>;
+ device_type = "cpu";
+ power-domains = <&sysc R8A779H0_PD_A1E0D0C2>;
+ next-level-cache = <&L3_CA76>;
+ enable-method = "psci";
+ };
+
+ a76_3: cpu@300 {
+ compatible = "arm,cortex-a76";
+ reg = <0x300>;
+ device_type = "cpu";
+ power-domains = <&sysc R8A779H0_PD_A1E0D0C3>;
+ next-level-cache = <&L3_CA76>;
+ enable-method = "psci";
};
L3_CA76: cache-controller {
@@ -53,6 +98,11 @@ pmu-a76 {
interrupts-extended = <&gic GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
};
+ psci {
+ compatible = "arm,psci-1.0", "arm,psci-0.2";
+ method = "smc";
+ };
+
/* External SCIF clock - to be overridden by boards that provide it */
scif_clk: scif-clk {
compatible = "fixed-clock";
--
2.34.1
