Device tree bindings for GPMC connected OneNANDs
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GPMC connected OneNAND (found on OMAP boards) are represented as child nodes of
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the GPMC controller with a name of "onenand".
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All timing relevant properties as well as generic gpmc child properties are
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explained in a separate documents - please refer to
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Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
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Required properties:
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- compatible: "ti,omap2-onenand"
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- reg: The CS line the peripheral is connected to
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- gpmc,device-width: Width of the ONENAND device connected to the GPMC
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in bytes. Must be 1 or 2.
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Optional properties:
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- int-gpios: GPIO specifier for the INT pin.
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For inline partition table parsing (optional):
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- #address-cells: should be set to 1
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- #size-cells: should be set to 1
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Example for an OMAP3430 board:
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gpmc: gpmc@6e000000 {
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compatible = "ti,omap3430-gpmc";
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ti,hwmods = "gpmc";
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reg = <0x6e000000 0x1000000>;
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interrupts = <20>;
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gpmc,num-cs = <8>;
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gpmc,num-waitpins = <4>;
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#address-cells = <2>;
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#size-cells = <1>;
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onenand@0 {
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compatible = "ti,omap2-onenand";
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reg = <0 0 0>; /* CS0, offset 0 */
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gpmc,device-width = <2>;
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#address-cells = <1>;
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#size-cells = <1>;
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/* partitions go here */
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};
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};
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