[v2,14/15] ARM: dts: qcom: msm8916: Add include for SMP without PSCI on ARM32

Commit Message

Stephan Gerhold Oct. 4, 2021, 8:49 p.m. UTC

Add a special device tree include for MSM8916 on ARM32 that sets up
SMP and cpuidle without PSCI. This is meant for devices with signed
firmware that does not support PSCI and only allows booting ARM32 kernels.

Signed-off-by: Stephan Gerhold <[e-mail]>
---
Changes in v2: Clarify commit message very slightly
---
 arch/arm/boot/dts/qcom-msm8916-smp.dtsi | 62 +++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 arch/arm/boot/dts/qcom-msm8916-smp.dtsi

Patch

diff --git a/arch/arm/boot/dts/qcom-msm8916-smp.dtsi b/arch/arm/boot/dts/qcom-msm8916-smp.dtsi
new file mode 100644
index 000000000000..36328dbe4212
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-msm8916-smp.dtsi
@@ -0,0 +1,62 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+
+/ {
+	cpus {
+		cpu@0 {
+			enable-method = "qcom,msm8916-smp";
+		};
+		cpu@1 {
+			enable-method = "qcom,msm8916-smp";
+		};
+		cpu@2 {
+			enable-method = "qcom,msm8916-smp";
+		};
+		cpu@3 {
+			enable-method = "qcom,msm8916-smp";
+		};
+
+		idle-states {
+			/delete-property/ entry-method;
+		};
+	};
+
+	psci {
+		status = "disabled";
+	};
+};
+
+&CPU_SLEEP_0 {
+	compatible = "qcom,idle-state-spc";
+};
+
+&cpu0_acc {
+	status = "okay";
+};
+
+&cpu0_saw {
+	status = "okay";
+};
+
+&cpu1_acc {
+	status = "okay";
+};
+
+&cpu1_saw {
+	status = "okay";
+};
+
+&cpu2_acc {
+	status = "okay";
+};
+
+&cpu2_saw {
+	status = "okay";
+};
+
+&cpu3_acc {
+	status = "okay";
+};
+
+&cpu3_saw {
+	status = "okay";
+};