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dt-bindings: arm: amlogic: Add SoC information bindings
Add bindings for the SoC information register of the Amlogic SoCs. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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@ -61,3 +61,32 @@ Board compatible values (alphabetically, grouped by SoC):
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- "amlogic,q201" (Meson gxm s912)
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- "kingnovel,r-box-pro" (Meson gxm S912)
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- "nexbox,a1" (Meson gxm s912)
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Amlogic Meson Firmware registers Interface
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------------------------------------------
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The Meson SoCs have a register bank with status and data shared with the
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secure firmware.
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Required properties:
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- compatible: For Meson GX SoCs, must be "amlogic,meson-gx-ao-secure", "syscon"
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Properties should indentify components of this register interface :
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Meson GX SoC Information
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------------------------
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A firmware register encodes the SoC type, package and revision information on
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the Meson GX SoCs.
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If present, the following property should be added :
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Optional properties:
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- amlogic,has-chip-id: If present, the interface gives the current SoC version.
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Example
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-------
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ao-secure@140 {
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compatible = "amlogic,meson-gx-ao-secure", "syscon";
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reg = <0x0 0x140 0x0 0x140>;
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amlogic,has-chip-id;
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};
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