Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / mtd / gpmc-onenand.txt
1 Device tree bindings for GPMC connected OneNANDs
2
3 GPMC connected OneNAND (found on OMAP boards) are represented as child nodes of
4 the GPMC controller with a name of "onenand".
5
6 All timing relevant properties as well as generic gpmc child properties are
7 explained in a separate documents - please refer to
8 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
9
10 Required properties:
11
12  - reg:                 The CS line the peripheral is connected to
13  - gpmc,device-width    Width of the ONENAND device connected to the GPMC
14                         in bytes. Must be 1 or 2.
15
16 Optional properties:
17
18  - dma-channel:         DMA Channel index
19
20 For inline partition table parsing (optional):
21
22  - #address-cells: should be set to 1
23  - #size-cells: should be set to 1
24
25 Example for an OMAP3430 board:
26
27         gpmc: gpmc@6e000000 {
28                 compatible = "ti,omap3430-gpmc";
29                 ti,hwmods = "gpmc";
30                 reg = <0x6e000000 0x1000000>;
31                 interrupts = <20>;
32                 gpmc,num-cs = <8>;
33                 gpmc,num-waitpins = <4>;
34                 #address-cells = <2>;
35                 #size-cells = <1>;
36
37                 onenand@0 {
38                         reg = <0 0 0>; /* CS0, offset 0 */
39                         gpmc,device-width = <2>;
40
41                         #address-cells = <1>;
42                         #size-cells = <1>;
43
44                         /* partitions go here */
45                 };
46         };