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| author |   Abhishek Sahu <absahu@codeaurora.org> | 2018-06-20 12:57:30 +0530 |
|---|---|---|
| committer |   Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-18 09:24:05 +0200 |
| commit | c168ac273ce34b8fb181b230544c4eac80f55b9f (patch) | |
| tree | 169e3c5be3f5611a7868056b31098c8abdcce512 | |
| parent | mtd: rawnand: denali: use helper function for ecc setup (diff) | |
| download | linux-dev-c168ac273ce34b8fb181b230544c4eac80f55b9f.tar.xz linux-dev-c168ac273ce34b8fb181b230544c4eac80f55b9f.zip | |
dt-bindings: qcom_nandc: update for ECC strength and step size
1. If nand-ecc-strength specified in DT, then controller will use
this ECC strength otherwise ECC strength will be calculated
according to chip requirement and available OOB size.
2. QCOM NAND controller supports only one step size (512 bytes) but
nand-ecc-step-size is required property in DT. This DT property
can be removed and ecc step size can be assigned in driver with
512 bytes value.
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/qcom_nandc.txt | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/mtd/qcom_nandc.txt b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt index 73d336befa08..1123cc6d56ef 100644 --- a/Documentation/devicetree/bindings/mtd/qcom_nandc.txt +++ b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt @@ -45,11 +45,12 @@ Required properties: number (e.g., 0, 1, 2, etc.) - #address-cells: see partition.txt - #size-cells: see partition.txt -- nand-ecc-strength: see nand.txt -- nand-ecc-step-size: must be 512. see nand.txt for more details. Optional properties: - nand-bus-width: see nand.txt +- nand-ecc-strength: see nand.txt. If not specified, then ECC strength will + be used according to chip requirement and available + OOB size. Each nandcs device node may optionally contain a 'partitions' sub-node, which further contains sub-nodes describing the flash partition mapping. See @@ -77,7 +78,6 @@ nand-controller@1ac00000 { reg = <0>; nand-ecc-strength = <4>; - nand-ecc-step-size = <512>; nand-bus-width = <8>; partitions { @@ -117,7 +117,6 @@ nand-controller@79b0000 { nand@0 { reg = <0>; nand-ecc-strength = <4>; - nand-ecc-step-size = <512>; nand-bus-width = <8>; partitions { |