[PATCH v5 03/12] dt-bindings: mtd: brcmnand: Add ecc strap property

William Zhang
2024-02-07T20:23:50Z

Add brcm,nand-ecc-use-strap to get ecc and spare area size settings from
board boot strap for broadband board designs because they do not specify
ecc setting in dts but rather using the strap setting.

Signed-off-by: William Zhang <william.zhang@broadcom.com>

---

Changes in v5:
- Update the description for this ecc strap property
- Add check to make sure brcm,nand-ecc-use-strap and
nand-ecc-strength/brcm,nand-oob-sector-size can not be used at the
same time

Changes in v4:
- Move ecc strap property to this separate patch and remove some
non-binding related text from the description

Changes in v3: None
Changes in v2: None

.../bindings/mtd/brcm,brcmnand.yaml | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
index 6a717bcedfd3..52a4c993b6f1 100644
--- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
+++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
@@ -146,6 +146,13 @@ patternProperties:
layout.
$ref: /schemas/types.yaml#/definitions/uint32

+ brcm,nand-ecc-use-strap:
+ description:
+ This property requires the host system to get the ECC strength
+ and step size from the SoC NAND boot strap setting. This is a
+ common hardware design on BCMBCA based boards.
+ $ref: /schemas/types.yaml#/definitions/flag
+
unevaluatedProperties: false

allOf:
@@ -195,6 +202,18 @@ allOf:
required:
- interrupt-names

+ - if:
+ patternProperties:
+ "^nand@[a-f0-9]$":
+ required:
+ - brcm,nand-ecc-use-strap
+ then:
+ patternProperties:
+ "^nand@[a-f0-9]$":
+ properties:
+ nand-ecc-strength: false
+ brcm,nand-oob-sector-size: false
+
unevaluatedProperties: false

required:
--
2.37.3