From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Paul Cercueil <paul@crapouillou.net>
Cc: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Boris Brezillon <bbrezillon@kernel.org>,
Marek Vasut <marek.vasut@gmail.com>,
Richard Weinberger <richard@nod.at>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Harvey Hunt <harveyhuntnexus@gmail.com>,
linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/9] dt-bindings: mtd: ingenic: Change 'BCH' to 'ECC' in documentation
Date: Mon, 4 Mar 2019 10:50:14 +0100 [thread overview]
Message-ID: <20190304105014.0cceea0a@xps13> (raw)
In-Reply-To: <20190209192305.4434-2-paul@crapouillou.net>
Hi Paul,
Paul Cercueil <paul@crapouillou.net> wrote on Sat, 9 Feb 2019 16:22:58
-0300:
> The JZ4740 ECC hardware is not BCH but Reed-Solomon, so it makes more
> sense to use the more generic ECC term.
>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
>
> Changes:
>
> v3: New patch
>
> v4: No change
>
> .../devicetree/bindings/mtd/ingenic,jz4780-nand.txt | 18 +++++++++---------
> 1 file changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt
> index a5b940f18bf6..5a45cc54f46d 100644
> --- a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt
> +++ b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt
> @@ -1,4 +1,4 @@
> -* Ingenic JZ4780 NAND/BCH
> +* Ingenic JZ4780 NAND/ECC
>
> This file documents the device tree bindings for NAND flash devices on the
> JZ4780. NAND devices are connected to the NEMC controller (described in
> @@ -14,10 +14,10 @@ Required NAND controller device properties:
> an offset of 0 and a size of 0x1000000 (i.e. the whole NEMC bank).
>
> Optional NAND controller device properties:
> -- ingenic,bch-controller: To make use of the hardware BCH controller, this
> - property must contain a phandle for the BCH controller node. The required
> +- ingenic,bch-controller: To make use of the hardware ECC controller, this
> + property must contain a phandle for the ECC controller node. The required
I think there is already a 'ecc-engine' property used by MTK and Atmel
NAND controllers to point to the ECC engine block. Please use this
property instead of the ingenic specific one.
> properties for this node are described below. If this is not specified,
> - software BCH will be used instead.
> + software ECC will be used instead.
>
> Optional children nodes:
> - Individual NAND chips are children of the NAND controller node.
> @@ -70,17 +70,17 @@ nemc: nemc@13410000 {
> };
> };
>
> -The BCH controller is a separate SoC component used for error correction on
> +The ECC controller is a separate SoC component used for error correction on
> NAND devices. The following is a description of the device properties for a
> -BCH controller.
> +ECC controller.
>
> -Required BCH properties:
> +Required ECC properties:
> - compatible: Should be one of:
> * ingenic,jz4740-ecc
> * ingenic,jz4725b-bch
> * ingenic,jz4780-bch
> -- reg: Should specify the BCH controller registers location and length.
> -- clocks: Clock for the BCH controller.
> +- reg: Should specify the ECC controller registers location and length.
> +- clocks: Clock for the ECC controller.
>
> Example:
>
Thanks,
Miquèl
next prev parent reply other threads:[~2019-03-04 9:50 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-09 19:22 [PATCH v4 1/9] dt-bindings: mtd: ingenic: Add compatible strings for JZ4740 and JZ4725B Paul Cercueil
2019-02-09 19:22 ` [PATCH v4 2/9] dt-bindings: mtd: ingenic: Change 'BCH' to 'ECC' in documentation Paul Cercueil
2019-02-13 21:46 ` Rob Herring
2019-03-04 9:50 ` Miquel Raynal [this message]
2019-03-04 18:23 ` Paul Cercueil
2019-03-04 18:58 ` Miquel Raynal
2019-03-13 12:59 ` Paul Cercueil
2019-03-13 13:12 ` Miquel Raynal
2019-02-09 19:22 ` [PATCH v4 3/9] mtd: rawnand: Move drivers for Ingenic SoCs to subfolder Paul Cercueil
2019-02-09 19:23 ` [PATCH v4 4/9] mtd: rawnand: ingenic: Use SPDX license notifiers Paul Cercueil
2019-02-09 19:23 ` [PATCH v4 5/9] mtd: rawnand: ingenic: Rename jz4780_nand driver to ingenic_nand Paul Cercueil
2019-02-09 19:23 ` [PATCH v4 6/9] mtd: rawnand: ingenic: Separate top-level and SoC specific code Paul Cercueil
2019-03-04 10:20 ` Miquel Raynal
2019-03-04 18:26 ` Paul Cercueil
2019-03-04 19:04 ` Miquel Raynal
2019-02-09 19:23 ` [PATCH v4 7/9] mtd: rawnand: ingenic: Add support for the JZ4740 Paul Cercueil
2019-03-04 10:34 ` Miquel Raynal
2019-03-04 18:28 ` Paul Cercueil
2019-03-04 19:07 ` Miquel Raynal
2019-02-09 19:23 ` [PATCH v4 8/9] mtd: rawnand: ingenic: Add support for the JZ4725B Paul Cercueil
2019-03-04 10:35 ` Miquel Raynal
2019-03-04 18:30 ` Paul Cercueil
2019-03-04 19:09 ` Miquel Raynal
2019-03-13 12:46 ` Paul Cercueil
2019-02-09 19:23 ` [PATCH v4 9/9] mtd: rawnand: ingenic: Add ooblayout for the Qi Ben Nanonote Paul Cercueil
2019-02-13 21:45 ` [PATCH v4 1/9] dt-bindings: mtd: ingenic: Add compatible strings for JZ4740 and JZ4725B Rob Herring
2019-03-04 9:45 ` Miquel Raynal
2019-03-04 18:22 ` Paul Cercueil
2019-03-04 18:51 ` Miquel Raynal
2019-03-13 12:55 ` Paul Cercueil
2019-03-13 13:09 ` Boris Brezillon
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