From: Shaohui Xie <shaohui....@freescale.com> This binding is for FMan MDIO, it covers FMan v2 & FMan v3.
Signed-off-by: Shaohui Xie <shaohui....@freescale.com> --- based on http://patchwork.ozlabs.org/patch/390351/ for 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git .../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 da8e5f2..83c2f14 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 ============================================================================= @@ -352,6 +353,67 @@ 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: Default MDIO bus clock speed. + +- interrupts + Usage: optional + Value type: <prop-encoded-array> + Definition: MDIO controller event interrupts. + +- type + Usage: required for FMan v3 + Value type: <stringlist> + Definition: A standard property. + FMan v3 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 include "internal" for internal MDIO, + must include "external" for external MDIO. + +EXAMPLE + +Example for FMan v2: + +mdio@f1000 { + compatible = "fsl,fman-xmdio"; + reg = <0xf1000 0x1000>; +}; + +Example for FMan v3: + +mdio@fd000 { + compatible = "fsl,fman-memac-mdio"; + reg = <0xfd000 0x1000>; + bus-frequency = <2500000>; + type = "external"; +}; + +============================================================================= Example fman@400000 { @@ -526,4 +588,11 @@ fman@400000 { compatible = "fsl,fman-ptp-timer"; reg = <0xfe000 0x1000>; }; + + mdio@fd000 { + compatible = "fsl,fman-memac-mdio"; + reg = <0xfd000 0x1000>; + bus-frequency = <2500000>; + type = "external"; + }; }; -- 1.8.4.1 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
