ARM: dts: qcom: msm8916: Add include for SMP without PSCI on ARM32

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 <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004204955.21077-14-stephan@gerhold.net

1 files changed, 62 insertions, 0 deletions

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";
+};