forked from Minki/linux
60f9e37ac6
This patch introduces documentation for alpine devicetree bindings. Signed-off-by: Barak Wasserstrom <barak@annapurnalabs.com> Signed-off-by: Tsahee Zidenberg <tsahee@annapurnalabs.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
53 lines
1.0 KiB
Plaintext
53 lines
1.0 KiB
Plaintext
========================================================
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Secondary CPU enable-method "al,alpine-smp" binding
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========================================================
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This document describes the "al,alpine-smp" method for
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enabling secondary CPUs. To apply to all CPUs, a single
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"al,alpine-smp" enable method should be defined in the
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"cpus" node.
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Enable method name: "al,alpine-smp"
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Compatible machines: "al,alpine"
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Compatible CPUs: "arm,cortex-a15"
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Related properties: (none)
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Note:
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This enable method requires valid nodes compatible with
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"al,alpine-cpu-resume" and "al,alpine-nb-service"[1].
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Example:
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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enable-method = "al,alpine-smp";
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cpu@0 {
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compatible = "arm,cortex-a15";
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device_type = "cpu";
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reg = <0>;
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};
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cpu@1 {
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compatible = "arm,cortex-a15";
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device_type = "cpu";
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reg = <1>;
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};
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cpu@2 {
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compatible = "arm,cortex-a15";
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device_type = "cpu";
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reg = <2>;
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};
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cpu@3 {
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compatible = "arm,cortex-a15";
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device_type = "cpu";
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reg = <3>;
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};
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};
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--
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[1] arm/al,alpine.txt
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