linux-kernel - Re: [PATCH v3 6/7] ARM: mediatek: dts: Add emmc support to mt8135

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Date:	Tue, 28 Apr 2015 14:37:25 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Chaotian Jing <chaotian.jing@...iatek.com>
Cc:	Rob Herring <robh+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	James Liao <jamesjj.liao@...iatek.com>,
	srv_heupstream@...iatek.com, Arnd Bergmann <arnd@...db.de>,
	devicetree@...r.kernel.org,
	Hongzhou Yang <hongzhou.yang@...iatek.com>,
	Catalin Marinas <catalin.marinas@....com>,
	bin.zhang@...iatek.com, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org, Will Deacon <will.deacon@....com>,
	linux-gpio@...r.kernel.org, linux-mediatek@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>,
	"Joe.C" <yingjoe.chen@...iatek.com>,
	Eddie Huang <eddie.huang@...iatek.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 6/7] ARM: mediatek: dts: Add emmc support to mt8135

On Tue, Apr 28, 2015 at 05:48:44PM +0800, Chaotian Jing wrote:
> From: Yingjoe Chen <yingjoe.chen@...iatek.com>
> 
> Add emmc node for mt8135.dtsi & mt8135-evbp1.dts
> 
> Signed-off-by: Yingjoe Chen <yingjoe.chen@...iatek.com>
> Signed-off-by: Chaotian Jing <chaotian.jing@...iatek.com>
> ---
>  arch/arm/boot/dts/mt8135-evbp1.dts | 141 +++++++++++++++++++++++++++++++++++++
>  arch/arm/boot/dts/mt8135.dtsi      |  26 +++++++
>  2 files changed, 167 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/mt8135-evbp1.dts b/arch/arm/boot/dts/mt8135-evbp1.dts
> index 357a91f..6d2fee9 100644
> --- a/arch/arm/boot/dts/mt8135-evbp1.dts
> +++ b/arch/arm/boot/dts/mt8135-evbp1.dts
> @@ -24,6 +24,147 @@
>  	};
>  };
>  
> +&mmc0 {
> +	pinctrl-names = "default", "state_uhs";
> +	pinctrl-0 = <&mmc0_pins_default>;
> +	pinctrl-1 = <&mmc0_pins_uhs>;
> +	status = "okay";
> +	bus-width = <8>;
> +	max-frequency = <50000000>;
> +	cap-mmc-highspeed;
> +	vmmc-supply = <&mt6397_vemc_3v3_reg>;
> +	non-removable;
> +	func = "EMMC";

...

> +	func = "SDCARD";

These have been removed in earlier versions, right?

> diff --git a/arch/arm/boot/dts/mt8135.dtsi b/arch/arm/boot/dts/mt8135.dtsi
> index 4d1ddd9..2c5c4da 100644
> --- a/arch/arm/boot/dts/mt8135.dtsi
> +++ b/arch/arm/boot/dts/mt8135.dtsi
> @@ -212,5 +212,31 @@
>  			status = "disabled";
>  		};
>  
> +		mmc0: mmc@...30000 {
> +			compatible = "mediatek,mt8135-mmc";
> +			reg = <0 0x11230000 0 0x108>;

Please use the whole register space for the controller here, not only
the one actually used by the registers.

Sascha

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