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charset="utf-8" Boot ROM code on Meson requires that some pages on NAND must be written in special mode: "short" ECC mode where each block is 384 bytes and scrambling mode is on. Such pages located with the specified interval within specified offset. Both interval and offset are located in the device tree and used by driver if 'nand-is-boot-medium' is set for NAND chip. Signed-off-by: Arseniy Krasnov --- .../bindings/mtd/amlogic,meson-nand.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml = b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml index 57b6957c8415..80ba5003ca70 100644 --- a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml +++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml @@ -64,11 +64,25 @@ patternProperties: items: maximum: 0 =20 + amlogic,boot-page-last: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The NFC driver needs this information to select ECC + algorithms supported by the boot ROM. + + amlogic,boot-page-step: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The NFC driver needs this information to select ECC + algorithms supported by the boot ROM (in pages). + unevaluatedProperties: false =20 dependencies: nand-ecc-strength: [nand-ecc-step-size] nand-ecc-step-size: [nand-ecc-strength] + amlogic,boot-page-last: [nand-is-boot-medium, amlogic,boot-page-step] + amlogic,boot-page-step: [nand-is-boot-medium, amlogic,boot-page-last] =20 =20 required: --=20 2.35.0