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Documentation: bindings: add the marvell,berlin-smp CPU enable method

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Document the CPU enable method used by Marvell Berlin SoCs.

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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Antoine Ténart 2014-06-04 18:03:44 +02:00 committed by Sebastian Hesselbarth
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commit a2418f4f04
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Documentation/devicetree/bindings/arm/cpu-enable-method/marvell,berlin-smp Normal file
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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