dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C
The display engine on Allwinner A64 wants to claim the SRAM C section. Add a SRAM controller compatible for A64, and a SRAM section compatible for its SRAM C. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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@ -9,7 +9,9 @@ Controller Node
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Required properties:
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- compatible : "allwinner,sun4i-a10-sram-controller"
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- compatible : should be:
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- "allwinner,sun4i-a10-sram-controller"
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- "allwinner,sun50i-a64-sram-controller"
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- reg : sram controller register offset + length
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SRAM nodes
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@ -22,10 +24,13 @@ Each SRAM will have SRAM sections that are going to be handled by the
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SRAM controller as subnodes. These sections are represented following
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once again the representation described in the mmio-sram binding.
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The valid sections compatible are:
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The valid sections compatible for A10 are:
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- allwinner,sun4i-a10-sram-a3-a4
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- allwinner,sun4i-a10-sram-d
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The valid sections compatible for A64 are:
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- allwinner,sun50i-a64-sram-c
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Devices using SRAM sections
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---------------------------
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