Document the CPU enable method used by Marvell Berlin SoCs.
Signed-off-by: Antoine Ténart <[email protected]>
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1 file changed, 41 insertions(+)
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Documentation/devicetree/bindings/arm/cpu-enable-method/marvell,berlin-smp
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a/Documentation/devicetree/bindings/arm/cpu-enable-method/marvell,berlin-smp
b/Documentation/devicetree/bindings/arm/cpu-enable-method/marvell,berlin-smp
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+========================================================
+Secondary CPU enable-method "marvell,berlin-smp" binding
+========================================================
+
+This document describes the "marvell,berlin-smp" method for enabling secondary
+CPUs. To apply to all CPUs, a single "marvell,berlin-smp" enable method should
+be defined in the "cpus" node.
+
+Enable method name: "marvell,berlin-smp"
+Compatible machines: "marvell,berlin2" and "marvell,berlin2q"
+Compatible CPUs: "marvell,pj4b" and "arm,cortex-a9"
+Related properties: (none)
+
+Note:
+This enable method needs valid nodes compatible with "arm,cortex-a9-scu" and
+"marvell,berlin-cpu-ctrl"[1].
+
+Example:
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "marvell,berlin-smp";
+
+ cpu@0 {
+ compatible = "marvell,pj4b";
+ device_type = "cpu";
+ next-level-cache = <&l2>;
+ reg = <0>;
+ };
+
+ cpu@1 {
+ compatible = "marvell,pj4b";
+ device_type = "cpu";
+ next-level-cache = <&l2>;
+ reg = <1>;
+ };
+ };
+
+--
+[1] arm/marvell,berlin.txt
--
1.9.1
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