[PATCH] arm64: dts: renesas: r8a78000: Enable application CPU cores via PSCI

Marek Vasut marek.vasut+renesas at mailbox.org
Mon Jun 1 04:38:51 PDT 2026


Add PSCI "enable-method" DT property to all application CPU cores.
This allows the OS to bring application CPU cores up and down.

Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Geert Uytterhoeven <geert+renesas at glider.be>
Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
Cc: Magnus Damm <magnus.damm at gmail.com>
Cc: Rob Herring <robh at kernel.org>
Cc: devicetree at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Cc: linux-renesas-soc at vger.kernel.org
---
NOTE: This depends mainline TFA 2.15 or newer (or SDK TFA version
      which includes b950bc09f5e9 ("plat: rcar_gen5: Fix multicore
      boot by ensuring fixed address for plat_secondary_reset"))
      and on SDK 4.32 or newer SCP firmware.
---
 arch/arm64/boot/dts/renesas/r8a78000.dtsi | 32 +++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a78000.dtsi b/arch/arm64/boot/dts/renesas/r8a78000.dtsi
index 7780fb4e8351d..fb71974ef3905 100644
--- a/arch/arm64/boot/dts/renesas/r8a78000.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a78000.dtsi
@@ -143,6 +143,7 @@ a720_0: cpu at 0 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x0>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_0>;
 		};
 
@@ -150,6 +151,7 @@ a720_1: cpu at 100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_1>;
 		};
 
@@ -157,6 +159,7 @@ a720_2: cpu at 200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_2>;
 		};
 
@@ -164,6 +167,7 @@ a720_3: cpu at 300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_3>;
 		};
 
@@ -171,6 +175,7 @@ a720_4: cpu at 10000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x10000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_4>;
 		};
 
@@ -178,6 +183,7 @@ a720_5: cpu at 10100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x10100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_5>;
 		};
 
@@ -185,6 +191,7 @@ a720_6: cpu at 10200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x10200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_6>;
 		};
 
@@ -192,6 +199,7 @@ a720_7: cpu at 10300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x10300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_7>;
 		};
 
@@ -199,6 +207,7 @@ a720_8: cpu at 20000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x20000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_8>;
 		};
 
@@ -206,6 +215,7 @@ a720_9: cpu at 20100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x20100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_9>;
 		};
 
@@ -213,6 +223,7 @@ a720_10: cpu at 20200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x20200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_10>;
 		};
 
@@ -220,6 +231,7 @@ a720_11: cpu at 20300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x20300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_11>;
 		};
 
@@ -227,6 +239,7 @@ a720_12: cpu at 30000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x30000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_12>;
 		};
 
@@ -234,6 +247,7 @@ a720_13: cpu at 30100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x30100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_13>;
 		};
 
@@ -241,6 +255,7 @@ a720_14: cpu at 30200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x30200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_14>;
 		};
 
@@ -248,6 +263,7 @@ a720_15: cpu at 30300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x30300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_15>;
 		};
 
@@ -255,6 +271,7 @@ a720_16: cpu at 40000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x40000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_16>;
 		};
 
@@ -262,6 +279,7 @@ a720_17: cpu at 40100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x40100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_17>;
 		};
 
@@ -269,6 +287,7 @@ a720_18: cpu at 40200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x40200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_18>;
 		};
 
@@ -276,6 +295,7 @@ a720_19: cpu at 40300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x40300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_19>;
 		};
 
@@ -283,6 +303,7 @@ a720_20: cpu at 50000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x50000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_20>;
 		};
 
@@ -290,6 +311,7 @@ a720_21: cpu at 50100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x50100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_21>;
 		};
 
@@ -297,6 +319,7 @@ a720_22: cpu at 50200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x50200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_22>;
 		};
 
@@ -304,6 +327,7 @@ a720_23: cpu at 50300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x50300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_23>;
 		};
 
@@ -311,6 +335,7 @@ a720_24: cpu at 60000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x60000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_24>;
 		};
 
@@ -318,6 +343,7 @@ a720_25: cpu at 60100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x60100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_25>;
 		};
 
@@ -325,6 +351,7 @@ a720_26: cpu at 60200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x60200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_26>;
 		};
 
@@ -332,6 +359,7 @@ a720_27: cpu at 60300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x60300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_27>;
 		};
 
@@ -339,6 +367,7 @@ a720_28: cpu at 70000 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x70000>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_28>;
 		};
 
@@ -346,6 +375,7 @@ a720_29: cpu at 70100 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x70100>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_29>;
 		};
 
@@ -353,6 +383,7 @@ a720_30: cpu at 70200 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x70200>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_30>;
 		};
 
@@ -360,6 +391,7 @@ a720_31: cpu at 70300 {
 			compatible = "arm,cortex-a720ae";
 			reg = <0x0 0x70300>;
 			device_type = "cpu";
+			enable-method = "psci";
 			next-level-cache = <&L2_CA720_31>;
 		};
 
-- 
2.53.0




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