From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0097.outbound.protection.outlook.com [65.55.169.97]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id AB8DD1A04D4 for ; Tue, 23 Dec 2014 20:02:01 +1100 (AEDT) From: To: , , Subject: [PATCH] [v3] power/fsl: add MDIO dt binding for FMan Date: Tue, 23 Dec 2014 15:57:46 +0800 Message-ID: <1419321466-5575-1-git-send-email-shh.xie@gmail.com> MIME-Version: 1.0 Content-Type: text/plain Cc: Shaohui Xie , Emilian.Medve@freescale.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Shaohui Xie This binding is for FMan MDIO, it covers FMan v2 & FMan v3. Signed-off-by: Shaohui Xie --- changes in v3: rephrase the 'Definition' of property 'bus-frequency', don't include the property in example. 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..737aa4c 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 +358,69 @@ 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: + 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: + Definition: A standard property. + +- bus-frequency + Usage: optional + Value type: + Definition: Specifies the external MDIO bus clock speed to + be used, if different from the standard 2.5 MHz. + This may be due to the standard speed being unsupported (e.g. + due to a hardware problem), or to advertise that all relevant + components in the system support a faster speed. + +- interrupts + Usage: optional + Value type: + 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>; +}; + +Example for FMan v3 internal MDIO: + +mdio@f1000 { + compatible = "fsl,fman-memac-mdio"; + reg = <0xf1000 0x1000>; + fsl,fman-internal-mdio; +}; + +============================================================================= Example fman@400000 { @@ -531,4 +595,9 @@ fman@400000 { compatible = "fsl,fman-ptp-timer"; reg = <0xfe000 0x1000>; }; + + mdio@f1000 { + compatible = "fsl,fman-xmdio"; + reg = <0xf1000 0x1000>; + }; }; -- 1.8.4.1