[U-Boot] [PATCH RFC 6/7] OMAP3: Add SMSC9221 device tree for omap devices connected on GPMC.

[Lokesh Vutla]

On Tuesday 11 April 2017 03:43 AM, Adam Ford wrote:
> Some OMAP3 devices support an SMSC ethernet PHY connected to the GPMC bus.
> This copies this device tree from Linux 4.9.y stable
> 
> Signed-off-by: Adam Ford <aford173 at gmail.com>

Reviewed-by: Lokesh Vutla <lokeshvutla at ti.com>

Thanks and regards,
Lokesh

> 
> diff --git a/arch/arm/dts/omap-gpmc-smsc9221.dtsi b/arch/arm/dts/omap-gpmc-smsc9221.dtsi
> new file mode 100644
> index 0000000..73e272f
> --- /dev/null
> +++ b/arch/arm/dts/omap-gpmc-smsc9221.dtsi
> @@ -0,0 +1,58 @@
> +/*
> + * Common file for GPMC connected smsc9221 on omaps
> + *
> + * Compared to smsc911x, smsc9221 (and others like smsc9217
> + * or smsc 9218) has faster timings, leading to higher
> + * bandwidth.
> + *
> + * Note that the board specifc DTS file needs to specify
> + * ranges, pinctrl, reg, interrupt parent and interrupts.
> + */
> +
> +/ {
> +	vddvario: regulator-vddvario {
> +		  compatible = "regulator-fixed";
> +		  regulator-name = "vddvario";
> +		  regulator-always-on;
> +	};
> +
> +	vdd33a: regulator-vdd33a {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vdd33a";
> +		regulator-always-on;
> +	};
> +};
> +
> +&gpmc {
> +	ethernet at gpmc {
> +		compatible = "smsc,lan9221","smsc,lan9115";
> +		bank-width = <2>;
> +
> +		gpmc,mux-add-data;
> +		gpmc,cs-on-ns = <0>;
> +		gpmc,cs-rd-off-ns = <42>;
> +		gpmc,cs-wr-off-ns = <36>;
> +		gpmc,adv-on-ns = <6>;
> +		gpmc,adv-rd-off-ns = <12>;
> +		gpmc,adv-wr-off-ns = <12>;
> +		gpmc,oe-on-ns = <0>;
> +		gpmc,oe-off-ns = <42>;
> +		gpmc,we-on-ns = <0>;
> +		gpmc,we-off-ns = <36>;
> +		gpmc,rd-cycle-ns = <60>;
> +		gpmc,wr-cycle-ns = <54>;
> +		gpmc,access-ns = <36>;
> +		gpmc,page-burst-access-ns = <0>;
> +		gpmc,bus-turnaround-ns = <0>;
> +		gpmc,cycle2cycle-delay-ns = <0>;
> +		gpmc,wr-data-mux-bus-ns = <18>;
> +		gpmc,wr-access-ns = <42>;
> +		gpmc,cycle2cycle-samecsen;
> +		gpmc,cycle2cycle-diffcsen;
> +
> +		vddvario-supply = <&vddvario>;
> +		vdd33a-supply = <&vdd33a>;
> +		reg-io-width = <4>;
> +		smsc,save-mac-address;
> +	};
> +};
>