From: Rob Herring <robh@kernel.org>
To: Arseniy Krasnov <avkrasnov@salutedevices.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
oxffffaa@gmail.com, kernel@sberdevices.ru
Subject: Re: [PATCH v4 1/2] dt-bindings: mtd: amlogic,meson-nand: support fields for boot ROM code
Date: Mon, 15 Apr 2024 16:27:10 -0500 [thread overview]
Message-ID: <20240415212710.GA105671-robh@kernel.org> (raw)
In-Reply-To: <20240410185409.2635622-2-avkrasnov@salutedevices.com>
On Wed, Apr 10, 2024 at 09:54:08PM +0300, Arseniy Krasnov wrote:
> 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..838ae1847ef0 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-pages:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description:
> + The NFC driver needs this information to select ECC
> + algorithms supported by the boot ROM.
'the $driver drivers needs this information' is true for every property,
so it's redundant. You fail to say *what* the property represents or
defines.
> +
> + 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).
Same issue here.
> +
> unevaluatedProperties: false
>
> dependencies:
> nand-ecc-strength: [nand-ecc-step-size]
> nand-ecc-step-size: [nand-ecc-strength]
> + amlogic,boot-pages: [nand-is-boot-medium, "amlogic,boot-page-step"]
> + amlogic,boot-page-step: [nand-is-boot-medium, "amlogic,boot-pages"]
>
>
> required:
> --
> 2.35.0
>
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next prev parent reply other threads:[~2024-04-15 21:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-10 18:54 [PATCH v4 0/2] Meson: R/W support for pages used by boot ROM Arseniy Krasnov
2024-04-10 18:54 ` [PATCH v4 1/2] dt-bindings: mtd: amlogic,meson-nand: support fields for boot ROM code Arseniy Krasnov
2024-04-15 21:27 ` Rob Herring [this message]
2024-04-10 18:54 ` [PATCH v4 2/2] mtd: rawnand: meson: support R/W mode for boot ROM Arseniy Krasnov
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