[lkml]   [2018]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH 1/2] dt-bindings: mtd: gpmi-nand: specify fsl,use-minimum-ecc behavior
The dt property fsl,use-minimum-ecc requires a NAND chip to
provide a ECC strength/step size, otherwise the driver fails
to probe. This is by design to avoid that the driver uses a
fallback and later changes ECC parameters due to additionion
of a NAND chip driver. Document the current behavior.

Signed-off-by: Stefan Agner <>
Documentation/devicetree/bindings/mtd/gpmi-nand.txt | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
index b289ef3c1b7e..eb2d9919d063 100644
--- a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
@@ -34,9 +34,8 @@ Optional properties:
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.
+ discoverable the driver will fail probing with
+ an error.
- fsl,no-blockmark-swap: Don't swap the bad block marker from the OOB
area with the byte in the data area but rely on the
flash based BBT for identifying bad blocks.
 \ /
  Last update: 2018-02-06 18:41    [W:0.051 / U:5.988 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site