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Message-ID: <20180725123150.GC3539@piout.net>
Date:   Wed, 25 Jul 2018 14:31:50 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Quentin Schulz <quentin.schulz@...tlin.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, ralf@...ux-mips.org,
        paul.burton@...s.com, jhogan@...nel.org, linux-mips@...ux-mips.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        thomas.petazzoni@...tlin.com
Subject: Re: [PATCH] MIPS: mscc: ocelot: add MIIM1 bus

On 25/07/2018 14:22:41+0200, Quentin Schulz wrote:
> There is an additional MIIM (MDIO) bus in this SoC so let's declare it
> in the dtsi.
> 
> This bus requires GPIO 14 and 15 pins that need to be muxed. There is no
> support for internal PHY reset on this bus on the contrary of MIIM0 so
> there is only one register address space and not two.
> 
> Signed-off-by: Quentin Schulz <quentin.schulz@...tlin.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

> ---
>  arch/mips/boot/dts/mscc/ocelot.dtsi | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
> index 7096915f26e0..d7f0e3551500 100644
> --- a/arch/mips/boot/dts/mscc/ocelot.dtsi
> +++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
> @@ -178,6 +178,11 @@
>  				pins = "GPIO_12", "GPIO_13";
>  				function = "uart2";
>  			};
> +
> +			miim1: miim1 {
> +				pins = "GPIO_14", "GPIO_15";
> +				function = "miim1";
> +			};
>  		};
>  
>  		mdio0: mdio@...009c {
> @@ -201,5 +206,16 @@
>  				reg = <3>;
>  			};
>  		};
> +
> +		mdio1: mdio@...00c0 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			compatible = "mscc,ocelot-miim";
> +			reg = <0x10700c0 0x24>;
> +			interrupts = <15>;
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&miim1>;
> +			status = "disabled";
> +		};
>  	};
>  };
> -- 
> 2.14.1
> 

-- 
Alexandre Belloni, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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