From 97c794a1e37b1ca128ef38f17c069186bfa5fb1b Mon Sep 17 00:00:00 2001 From: Philip Avinash Date: Fri, 18 Jan 2013 10:27:46 +0530 Subject: [PATCH] ARM: OMAP2+: gpmc: Add device tree documentation for elm handle In case ELM module available, omap2 NAND driver can opt for hardware correction method for bit flip errors in NAND flash with BCH. Hence the detection of ELM module is done through devicetree population of elm_id. This patch update device tree documentation for gpmc-nand for elm-id data population. Signed-off-by: Philip Avinash Signed-off-by: Tony Lindgren --- Documentation/devicetree/bindings/mtd/gpmc-nand.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt index 9f464f9..e7f8d7e 100644 --- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt +++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt @@ -29,6 +29,9 @@ Optional properties: "bch4" 4-bit BCH ecc code "bch8" 8-bit BCH ecc code + - elm_id: Specifies elm device node. This is required to support BCH + error correction using ELM module. + For inline partiton table parsing (optional): - #address-cells: should be set to 1 @@ -46,6 +49,7 @@ Example for an AM33xx board: #address-cells = <2>; #size-cells = <1>; ranges = <0 0 0x08000000 0x2000>; /* CS0: NAND */ + elm_id = <&elm>; nand@0,0 { reg = <0 0 0>; /* CS0, offset 0 */ -- 2.7.4