About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Documentation / devicetree / bindings / mtd / gpmi-nand.txt




Custom Search

Based on kernel version 3.16. Page generated on 2014-08-06 21:37 EST.

1	* Freescale General-Purpose Media Interface (GPMI)
2	
3	The GPMI nand controller provides an interface to control the
4	NAND flash chips. We support only one NAND chip now.
5	
6	Required properties:
7	  - compatible : should be "fsl,<chip>-gpmi-nand"
8	  - reg : should contain registers location and length for gpmi and bch.
9	  - reg-names: Should contain the reg names "gpmi-nand" and "bch"
10	  - interrupts : BCH interrupt number.
11	  - interrupt-names : Should be "bch".
12	  - dmas: DMA specifier, consisting of a phandle to DMA controller node
13	    and GPMI DMA channel ID.
14	    Refer to dma.txt and fsl-mxs-dma.txt for details.
15	  - dma-names: Must be "rx-tx".
16	
17	Optional properties:
18	  - nand-on-flash-bbt: boolean to enable on flash bbt option if not
19	                       present false
20	  - fsl,use-minimum-ecc: Protect this NAND flash with the minimum ECC
21	                       strength required. The required ECC strength is
22	                       automatically discoverable for some flash
23	                       (e.g., according to the ONFI standard).
24	                       However, note that if this strength is not
25	                       discoverable or this property is not enabled,
26	                       the software may chooses an implementation-defined
27	                       ECC scheme.
28	
29	The device tree may optionally contain sub-nodes describing partitions of the
30	address space. See partition.txt for more detail.
31	
32	Examples:
33	
34	gpmi-nand@8000c000 {
35		compatible = "fsl,imx28-gpmi-nand";
36		#address-cells = <1>;
37		#size-cells = <1>;
38		reg = <0x8000c000 2000>, <0x8000a000 2000>;
39		reg-names = "gpmi-nand", "bch";
40		interrupts = <41>;
41		interrupt-names = "bch";
42		dmas = <&dma_apbh 4>;
43		dma-names = "rx-tx";
44	
45		partition@0 {
46		...
47		};
48	};
Hide Line Numbers
About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.