From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Mason Yang <masonccyang@mxic.com.tw>
Cc: richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org,
mark.rutland@arm.com, devicetree@vger.kernel.org,
tglx@linutronix.de, juliensu@mxic.com.tw,
frieder.schrempf@kontron.de, allison@lohutok.net,
linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org,
yuehaibing@huawei.com
Subject: Re: [PATCH v5 2/2] dt-bindings: mtd: Document Macronix NAND device bindings
Date: Wed, 11 Mar 2020 08:45:41 +0100 [thread overview]
Message-ID: <20200311084541.28ff4829@xps13> (raw)
In-Reply-To: <1581922600-25461-3-git-send-email-masonccyang@mxic.com.tw>
Hi Mason,
Mason Yang <masonccyang@mxic.com.tw> wrote on Mon, 17 Feb 2020 14:56:40
+0800:
> Document the bindings used by the Macronix NAND device.
>
> Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
> Reviewed-by: Rob Herring <robh@kernel.org>
> ---
> .../devicetree/bindings/mtd/nand-macronix.txt | 28 ++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mtd/nand-macronix.txt
>
> diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/Documentation/devicetree/bindings/mtd/nand-macronix.txt
> new file mode 100644
> index 0000000..1d7a895
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/nand-macronix.txt
> @@ -0,0 +1,28 @@
> +Macronix NANDs Device Tree Bindings
> +-----------------------------------
> +
> +Macronix NANDs support randomizer operation for user data scrambled,
> +which can be enabled with a SET_FEATURE. The penalty of randomizer are
> +subpage accesses prohibited and more time period is needed in program
> +operation, i.e., tPROG 300us to 340us(randomizer enabled).
> +Randomizer enabled is a one time persistent and non reversible operatoin.
> +
> +For more high-reliability concern, if subpage write not available with
> +hardware ECC and filesystem and then to enable randomizer is recommended
> +by default.
> +
> +By adding a new specific property in children nodes to enable
> +randomizer function.
I also reworded slightly this text when applying.
Thanks,
Miquèl
next prev parent reply other threads:[~2020-03-11 7:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 6:56 [PATCH v5 0/2] mtd: rawnand: Add support for Macronix NAND randomizer Mason Yang
2020-02-17 6:56 ` [PATCH v5 1/2] " Mason Yang
2020-03-10 18:32 ` Miquel Raynal
2020-02-17 6:56 ` [PATCH v5 2/2] dt-bindings: mtd: Document Macronix NAND device bindings Mason Yang
2020-03-10 18:31 ` Miquel Raynal
2020-03-11 7:45 ` Miquel Raynal [this message]
2020-03-12 1:55 ` masonccyang
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