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authorEzequiel Garcia <ezequiel.garcia@free-electrons.com>2013-01-25 09:23:11 -0300
committerTony Lindgren <tony@atomide.com>2013-02-01 14:31:56 -0800
commit75d3625e0e86b2d8d77b4e9c6f685fd7ea0d5a96 (patch)
tree890a1375e84f94041b09ae06e5610958886433d1 /Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
parentfaf5d2ff82154b3e2d30c9bfdab2ea4e089b24d5 (diff)
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ARM: OMAP2+: gpmc: add DT bindings for OneNAND
This patch adds device tree bindings for OMAP OneNAND devices. Tested on an OMAP3 3430 IGEPv2 board. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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+Device tree bindings for GPMC connected OneNANDs
+
+GPMC connected OneNAND (found on OMAP boards) are represented as child nodes of
+the GPMC controller with a name of "onenand".
+
+All timing relevant properties as well as generic gpmc child properties are
+explained in a separate documents - please refer to
+Documentation/devicetree/bindings/bus/ti-gpmc.txt
+
+Required properties:
+
+ - reg: The CS line the peripheral is connected to
+
+Optional properties:
+
+ - dma-channel: DMA Channel index
+
+For inline partiton table parsing (optional):
+
+ - #address-cells: should be set to 1
+ - #size-cells: should be set to 1
+
+Example for an OMAP3430 board:
+
+ gpmc: gpmc@6e000000 {
+ compatible = "ti,omap3430-gpmc";
+ ti,hwmods = "gpmc";
+ reg = <0x6e000000 0x1000000>;
+ interrupts = <20>;
+ gpmc,num-cs = <8>;
+ gpmc,num-waitpins = <4>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ onenand@0 {
+ reg = <0 0 0>; /* CS0, offset 0 */
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* partitions go here */
+ };
+ };
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