Messages in this thread | | | Date | Wed, 10 Apr 2024 12:23:56 +0200 | From | Miquel Raynal <> | Subject | Re: [PATCH v3 1/2] dt-bindings: mtd: amlogic,meson-nand: support fields for boot ROM code |
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Hi Arseniy,
avkrasnov@salutedevices.com wrote on Tue, 9 Apr 2024 21:10:24 +0300:
> 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 <avkrasnov@salutedevices.com> > --- > .../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..b86a1953056b 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 > > + 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.
Shall we have a length rather than the last page?
> + > + 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 > > 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"] > > > required:
Thanks, Miquèl
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