linux-kernel - Re: [PATCH v1 3/5] ARM: imx28evk: add mmc dt support

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Message-ID: <20120314072839.GH18320@game.jcrosoft.org>
Date:	Wed, 14 Mar 2012 08:28:39 +0100
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Dong Aisheng <b29396@...escale.com>
Cc:	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	vinod.koul@...ux.intel.com, s.hauer@...gutronix.de,
	rob.herring@...xeda.com, rdunlap@...otime.net,
	kernel@...gutronix.de, cjb@...top.org
Subject: Re: [PATCH v1 3/5] ARM: imx28evk: add mmc dt support

On 16:47 Tue 13 Mar     , Dong Aisheng wrote:
> From: Dong Aisheng <dong.aisheng@...aro.org>
> 
> Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org>
> ---
>  arch/arm/boot/dts/imx28-evk.dts |   14 ++++++++++++++
>  arch/arm/boot/dts/imx28.dtsi    |   33 +++++++++++++++++++++++++++++++++
>  arch/arm/mach-mxs/imx28-dt.c    |    2 ++
>  3 files changed, 49 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
> index 9758dc4..61350ab 100644
> --- a/arch/arm/boot/dts/imx28-evk.dts
> +++ b/arch/arm/boot/dts/imx28-evk.dts
> @@ -21,6 +21,20 @@
>  		reg = <0x40000000 0x08000000>;
>  	};
>  
> +        apb@...00000 {
> +                apbh@...00000 {
> +			mmc1: ssp@...10000 {
> +				slot-8bit;
> +				status = "okay";
> +			};
> +
> +			mmc2: ssp@...12000 {
> +				slot-8bit;
> +				status = "okay";
> +			};
> +		};
> +	};
> +
>  	ahb@...80000 {
>  		fec@...f0000 {
>  			phy-mode = "rmii";
> diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
> index acf0dab..71c7bfb 100644
> --- a/arch/arm/boot/dts/imx28.dtsi
> +++ b/arch/arm/boot/dts/imx28.dtsi
> @@ -46,6 +46,39 @@
>  				#interrupt-cells = <1>;
>  				reg = <0x80000000 0x2000>;
>  			};
> +
> +			ssp@...10000 {
> +				compatible = "fsl,imx28-mmc";
> +				reg = <0x80010000 2000>;
> +				/* <irq_err irq_dma> */
> +				interrupts = <96 82>;
> +				dma_channel = <0>;
> +				status = "disabled";
> +			};
> +
> +			ssp@...12000 {
> +				compatible = "fsl,imx28-mmc";
> +				reg = <0x80012000 2000>;
> +				interrupts = <97 83>;
> +				dma_channel = <1>;
> +				status = "disabled";
> +			};
> +
> +			ssp@...14000 {
> +				compatible = "fsl,imx28-mmc";
> +				reg = <0x80014000 2000>;
> +				interrupts = <98 84>;
> +				dma_channel = <2>;
> +				status = "disabled";
> +			};
> +
> +			ssp@...16000 {
> +				compatible = "fsl,imx28-mmc";
> +				reg = <0x80016000 2000>;
> +				interrupts = <99 85>;
> +				dma_channel = <3>;
> +				status = "disabled";
> +			};
>  		};
>  
>  		apbx@...40000 {
> diff --git a/arch/arm/mach-mxs/imx28-dt.c b/arch/arm/mach-mxs/imx28-dt.c
> index 78d1129..429b88e 100644
> --- a/arch/arm/mach-mxs/imx28-dt.c
> +++ b/arch/arm/mach-mxs/imx28-dt.c
> @@ -23,6 +23,8 @@ static const struct of_dev_auxdata imx28_auxdata_lookup[] __initconst = {
>  	OF_DEV_AUXDATA("arm,pl011", MX28_DUART_BASE_ADDR, "duart", NULL),
>  	OF_DEV_AUXDATA("fsl,imx28-fec", MX28_ENET_MAC0_BASE_ADDR, "imx28-fec.0", NULL),
>  	OF_DEV_AUXDATA("fsl,imx28-fec", MX28_ENET_MAC1_BASE_ADDR, "imx28-fec.1", NULL),
> +	OF_DEV_AUXDATA("fsl,imx28-mmc", MX28_SSP0_BASE_ADDR, "mxs-mmc.0", NULL),
> +	OF_DEV_AUXDATA("fsl,imx28-mmc", MX28_SSP1_BASE_ADDR, "mxs-mmc.1", NULL),
do we really need to continue to add OF_DEV_AUXDATA

instead add a clkdev entry

IIRC OF_DEV_AUXDATA was a temporary solution, we need to stop to use it more
and more

Best Reards,
J.
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