linux-kernel - Re: [PATCH v8 2/2] arm64: dts: mt8173: Add nor flash node

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Message-ID: <CAGS+omBVfc=BPLoobOJSDPnbv97PnGsRxUTF1gbXEz4DeufbmQ@mail.gmail.com>
Date:	Thu, 26 Nov 2015 09:20:48 +0800
From:	Daniel Kurtz <djkurtz@...omium.org>
To:	Bayi Cheng <bayi.cheng@...iatek.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-mediatek@...ts.infradead.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-mtd@...ts.infradead.org,
	srv_heupstream <srv_heupstream@...iatek.com>, jteki@...nedev.com,
	ezequiel@...guardiasur.com.ar
Subject: Re: [PATCH v8 2/2] arm64: dts: mt8173: Add nor flash node

Hi Bayi, Matthias,

Sorry for the late review, one comment below...

On Wed, Nov 18, 2015 at 11:30 AM, Bayi Cheng <bayi.cheng@...iatek.com> wrote:
> Add Mediatek nor flash node
>
> Signed-off-by: Bayi Cheng <bayi.cheng@...iatek.com>
> Acked-by: Brian Norris <computersforpeace@...il.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt8173.dtsi | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index 4dd5f93..7988656 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -387,7 +387,23 @@
>                         status = "disabled";
>                 };
>
> -               i2c3: i2c@...10000 {
> +               nor_flash: spi@...0d000 {
> +                       compatible = "mediatek,mt8173-nor";
> +                       reg = <0 0x1100d000 0 0xe0>;
> +                       clocks = <&pericfg CLK_PERI_SPI>,
> +                                <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
> +                       clock-names = "spi", "sf";
> +                       #address-cells = <1>;
> +                       #size-cells = <0>;
> +                       status = "disabled";
> +
> +                       flash@0 {
> +                               compatible = "jedec,spi-nor";
> +                               reg = <0>;
> +                       };

I think this flash@0 node represents the flash device present on the
board and should therefore be moved to the board-specific .dts.

-Dan

> +               };
> +
> +               i2c3: i2c3@...10000 {
>                         compatible = "mediatek,mt8173-i2c";
>                         reg = <0 0x11010000 0 0x70>,
>                               <0 0x11000280 0 0x80>;
> --
> 1.8.1.1.dirty
>
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