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

Message ID 20200117214151.20767-15-miquel.raynal@bootlin.com
State Changes Requested
Delegated to: Miquel Raynal
Headers show
Series Prepare the introduction of generic ECC engines | expand

Commit Message

Miquel Raynal Jan. 17, 2020, 9:41 p.m. UTC 
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@bootlin.com>
---
 .../devicetree/bindings/mtd/nand-controller.yaml       | 10 ++++++++++
 1 file changed, 10 insertions(+)
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Patch

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.
+
       nand-ecc-algo:
         allOf:
           - $ref: /schemas/types.yaml#/definitions/string