linux-kernel - Re: [PATCH 09/22] mtd: add DT bindings for the Cortina Systems Gemini Flash

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Date:   Sun, 22 Jan 2017 15:40:00 +0100
From:   Marek Vasut <marek.vasut@...il.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        Hans Ulli Kroll <ulli.kroll@...glemail.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>
Cc:     Janos Laube <janos.dev@...il.com>,
        Paulius Zaleckas <paulius.zaleckas@...il.com>,
        openwrt-devel@...nwrt.org, Arnd Bergmann <arnd@...db.de>,
        linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 09/22] mtd: add DT bindings for the Cortina Systems Gemini
 Flash

On 01/22/2017 01:21 PM, Linus Walleij wrote:
> This adds device tree bindings for the Cortina systems Gemini
> flash controller, a simple physmap which however need a few
> syscon bits to be poked to operate properly.
> 
> Cc: Janos Laube <janos.dev@...il.com>
> Cc: Paulius Zaleckas <paulius.zaleckas@...il.com>
> Cc: Hans Ulli Kroll <ulli.kroll@...glemail.com>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>

Looks pretty OK to me:
Reviewed-by: Marek Vasut <marek.vasut@...il.com>

> ---
> MTD maintainers: please just apply this to the MTD tree when
> you are happy with it. It is functionally orthogonal to the rest
> of the series and is just in the series for context.
> ---
>  .../bindings/mtd/cortina,gemini-flash.txt          | 24 ++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt
> 
> diff --git a/Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt b/Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt
> new file mode 100644
> index 000000000000..3fa1b34d69ad
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt
> @@ -0,0 +1,24 @@
> +Flash device on Cortina Systems Gemini SoC
> +
> +This flash is regular CFI compatible (Intel or AMD extended) flash chips with
> +some special bits that can be controlled by the machine's system controller.
> +
> +Required properties:
> +- compatible : must be "cortina,gemini-flash", "cfi-flash";
> +- reg : memory address for the flash chip
> +- syscon : must be a phandle to the system controller
> +- bank-width : width in bytes of flash interface, should be <2>
> +
> +For the rest of the properties, see mtd-physmap.txt.
> +
> +The device tree may optionally contain sub-nodes describing partitions of the
> +address space. See partition.txt for more detail.
> +
> +Example:
> +
> +flash@...00000 {
> +	compatible = "cortina,gemini-flash", "cfi-flash";
> +	reg = <0x30000000 0x01000000>;
> +	syscon = <&syscon>;
> +	bank-width = <2>;
> +};
> 


-- 
Best regards,
Marek Vasut