mtd: gpmi: add a new DT property to use the datasheet's minimum required ECC

[karo-tx-linux.git] / Documentation / devicetree / bindings / mtd / gpmi-nand.txt

diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
index 551b2a179d016df4bd9bb8e611f38633d57d6640..458d5963468826647d2469c23f542bde3ffe047c 100644 (file)
--- a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
@@ -17,6 +17,14 @@ Required properties:
 Optional properties:
   - nand-on-flash-bbt: boolean to enable on flash bbt option if not
                        present false
+  - fsl,use-minimum-ecc: Protect this NAND flash with the minimum ECC
+                       strength required. The required ECC strength is
+                       automatically discoverable for some flash
+                       (e.g., according to the ONFI standard).
+                       However, note that if this strength is not
+                       discoverable or this property is not enabled,
+                       the software may chooses an implementation-defined
+                       ECC scheme.
 
 The device tree may optionally contain sub-nodes describing partitions of the
 address space. See partition.txt for more detail.