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authorRoger Quadros <rogerq@ti.com>2014-08-25 16:15:33 -0700
committerTony Lindgren <tony@atomide.com>2014-08-25 16:15:33 -0700
commita3e83f05fbbf6c4994c658521a750bbd68bdf7a6 (patch)
treed2166d47b481f14434dbb8d9f9ab4c1b464ea616 /Documentation
parent7d5929c1f34304ca5a970cfde8044053e56aa8c9 (diff)
downloadlinux-a3e83f05fbbf6c4994c658521a750bbd68bdf7a6.tar.bz2
ARM: OMAP2+: GPMC: Support Software ECC scheme via DT
For v3.14 and prior, 1-bit Hamming code ECC via software was the default choice for some boards e.g. 3430sdp. Commit ac65caf514ec in v3.15 changed the behaviour to use 1-bit Hamming code via Hardware using a different ECC layout i.e. (ROM code layout) than what is used by software ECC. This ECC layout change causes NAND filesystems created in v3.14 and prior to be unusable in v3.15 and later. So don't mark "sw" scheme as deperecated and support it. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/mtd/gpmc-nand.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 65f4f7c43136..ee654e95d8ad 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -22,7 +22,7 @@ Optional properties:
width of 8 is assumed.
- ti,nand-ecc-opt: A string setting the ECC layout to use. One of:
- "sw" <deprecated> use "ham1" instead
+ "sw" 1-bit Hamming ecc code via software
"hw" <deprecated> use "ham1" instead
"hw-romcode" <deprecated> use "ham1" instead
"ham1" 1-bit Hamming ecc code