On Fri, 2014-11-14 at 17:53 +0800, shh.xie@xxxxxxxxx wrote:
> From: Shaohui Xie <Shaohui.Xie@xxxxxxxxxxxxx>
>
> This binding is for FMan MDIO, it covers FMan v2 & FMan v3.
>
> Signed-off-by: Shaohui Xie <Shaohui.Xie@xxxxxxxxxxxxx>
> ---
> changes in V2:
> addressed comments from Scott in V1.
>
> .../devicetree/bindings/powerpc/fsl/fman.txt | 69 ++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/fman.txt b/Documentation/devicetree/bindings/powerpc/fsl/fman.txt
> index edeea16..1523a87 100644
> --- a/Documentation/devicetree/bindings/powerpc/fsl/fman.txt
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/fman.txt
> @@ -7,6 +7,7 @@ CONTENTS
> - FMan MURAM Node
> - FMan dTSEC/XGEC/mEMAC Node
> - FMan IEEE 1588 Node
> + - FMan MDIO Node
> - Example
>
> =============================================================================
> @@ -357,6 +358,68 @@ ptp-timer@fe000 {
> };
>
> =============================================================================
> +FMan MDIO Node
> +
> +DESCRIPTION
> +
> +The MDIO is a bus to which the PHY devices are connected.
> +
> +PROPERTIES
> +
> +- compatible
> + Usage: required
> + Value type: <stringlist>
> + Definition: A standard property.
> + Must include "fsl,fman-mdio" for 1 Gb/s MDIO from FMan v2.
> + Must include "fsl,fman-xmdio" for 10 Gb/s MDIO from FMan v2.
> + Must include "fsl,fman-memac-mdio" for 1/10 Gb/s MDIO from
> + FMan v3.
> +
> +- reg
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: A standard property.
> +
> +- bus-frequency
> + Usage: optional
> + Value type: <u32>
> + Definition: Specifies external MDIO bus clock speed which is
> + different from MDIO standard 2.5MHz. Should be defined for SoCs
> + on which the standard one cannot work.
> +
> +- interrupts
> + Usage: optional
> + Value type: <prop-encoded-array>
> + Definition: Event interrupt of external MDIO controller.
> + 1 Gb/s MDIO and 10 Gb/s MDIO has one interrupt respectively.
> +
> +- fsl,fman-internal-mdio
> + Usage: required for internal MDIO
> + Value type: boolean
> + Definition: Fman has internal MDIO for internal PCS(Physical
> + Coding Sublayer) PHYs and external MDIO for external PHYs.
> + The settings and programming routines for internal/external
> + MDIO are different. Must be included for internal MDIO.
> +
> +EXAMPLE
> +
> +Example for FMan v2 external MDIO:
> +
> +mdio@f1000 {
> + compatible = "fsl,fman-xmdio";
> + reg = <0xf1000 0x1000>;
> + bus-frequency = <20000>;
> +};
So the bus frequency is only 20 KHz? Or is the unit supposed to be
something other than Hz?
-Scott
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
