linux-kernel - [PATCH v1] arm64: dts: actions: Fix smp Bringing up secondary CPUs

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Message-Id: <20200705191944.404933-1-matheus@castello.eng.br>
Date:   Sun,  5 Jul 2020 16:19:44 -0300
From:   Matheus Castello <matheus@...tello.eng.br>
To:     afaerber@...e.de, manivannan.sadhasivam@...aro.org
Cc:     robh+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-actions@...ts.infradead.org,
        Matheus Castello <matheus@...tello.eng.br>
Subject: [PATCH v1] arm64: dts: actions: Fix smp Bringing up secondary CPUs

Change the enable-method to fix the failed to boot errors:

[    0.040330] smp: Bringing up secondary CPUs ...
[    0.040683] psci: failed to boot CPU1 (-22)
[    0.040691] CPU1: failed to boot: -22
[    0.041062] psci: failed to boot CPU2 (-22)
[    0.041071] CPU2: failed to boot: -22
[    0.041408] psci: failed to boot CPU3 (-22)
[    0.041417] CPU3: failed to boot: -22
[    0.041443] smp: Brought up 1 node, 1 CPU
[    0.041451] SMP: Total of 1 processors activated.

Tested on Caninos Labrador v3 based on Actions Semi S700.

Signed-off-by: Matheus Castello <matheus@...tello.eng.br>
---
 arch/arm64/boot/dts/actions/s700.dtsi | 33 +++++++++++++++++++--------
 1 file changed, 23 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/actions/s700.dtsi b/arch/arm64/boot/dts/actions/s700.dtsi
index 2006ad5424fa..b28dbbcad27b 100644
--- a/arch/arm64/boot/dts/actions/s700.dtsi
+++ b/arch/arm64/boot/dts/actions/s700.dtsi
@@ -14,37 +14,50 @@ / {
 	#size-cells = <2>;

 	cpus {
-		#address-cells = <2>;
+		#address-cells = <1>;
 		#size-cells = <0>;
-
+
 		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
-			reg = <0x0 0x0>;
-			enable-method = "psci";
+			reg = <0x0>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0x1f000020>;
+			next-level-cache = <&L2>;
 		};

 		cpu1: cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
-			reg = <0x0 0x1>;
-			enable-method = "psci";
+			reg = <0x1>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0x1f000020>;
+			next-level-cache = <&L2>;
 		};

 		cpu2: cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
-			reg = <0x0 0x2>;
-			enable-method = "psci";
+			reg = <0x2>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0x1f000020>;
+			next-level-cache = <&L2>;
 		};

 		cpu3: cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
-			reg = <0x0 0x3>;
-			enable-method = "psci";
+			reg = <0x3>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0x1f000020>;
+			next-level-cache = <&L2>;
 		};
 	};
+
+	L2: l2-cache {
+		compatible = "cache";
+		cache-level = <2>;
+	};

 	reserved-memory {
 		#address-cells = <2>;
--
2.27.0