[PATCH v4 14/21] dt-bindings: mtd: Add the nand-ecc-placement property

Miquel Raynal miquel.raynal at bootlin.com
Fri Jan 17 13:41:44 PST 2020

Placement is where the ECC bytes are expected.
No value means the controller can do whatever it desires (default is
to put ECC bytes at the end of the OOB area). Alternative placement is
"interleaved" (also sometimes referred as "syndrome") where data and
OOB are mixed.

Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
 .../devicetree/bindings/mtd/nand-controller.yaml       | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/nand-controller.yaml b/Documentation/devicetree/bindings/mtd/nand-controller.yaml
index d529f8587ba6..35512f2c66fa 100644
--- a/Documentation/devicetree/bindings/mtd/nand-controller.yaml
+++ b/Documentation/devicetree/bindings/mtd/nand-controller.yaml
@@ -56,6 +56,16 @@ patternProperties:
           (Linux will handle the calculations). soft_bch is deprecated
           and should be replaced by soft and nand-ecc-algo.
+      nand-ecc-placement:
+        allOf:
+          - $ref: /schemas/types.yaml#/definitions/string
+          - enum: [ free, interleaved ]
+        description:
+          Location for the ECC bytes. Free is the default and means the
+	  controller in charge is free to put them where it wants.
+	  Default state is to put ECC bytes at the end of the OOB area.
+	  Otherwise, ECC bytes may be interleaved with data.
           - $ref: /schemas/types.yaml#/definitions/string

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