From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754209AbcE3HKs (ORCPT ); Mon, 30 May 2016 03:10:48 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:33052 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754143AbcE3HKp (ORCPT ); Mon, 30 May 2016 03:10:45 -0400 From: Pramod Kumar To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Catalin Marinas , Will Deacon , Kishon Vijay Abraham I , "David S. Miller" Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Pramod Kumar Subject: [PATCH 3/7] binding: mdio-mux: Add DT binding doc for Broadcom MDIO bus mutiplexer Date: Mon, 30 May 2016 12:40:47 +0530 Message-Id: <1464592251-2688-4-git-send-email-pramod.kumar@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1464592251-2688-1-git-send-email-pramod.kumar@broadcom.com> References: <1464592251-2688-1-git-send-email-pramod.kumar@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add DT binding doc for Broadcom MDIO bus mutiplexer driver. Signed-off-by: Pramod Kumar --- .../bindings/net/brcm,mdio-mux-iproc.txt | 64 ++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt diff --git a/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt new file mode 100644 index 0000000..dd74ee0 --- /dev/null +++ b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt @@ -0,0 +1,64 @@ +Properties for an MDIO bus mutiplexer found in Broadcom iProc based SoCs. + +This MDIO bus multiplexer defines buses that could be internal as well as +external to SoCs and could accept MDIO transaction compatible to C-22 or +C-45 Clause. When Child bus is selected, one need to select these two +properties as well to generate desired MDIO trascation on appropriate bus. + +Required properties in addition to the generic multiplexer properties: + +MDIO multiplexer node: +- complatible: brcm,mdio-mux-iproc. + +Child bus node: +-brcm,is-c45: Boolean property indicating PHYs attached to this bus supports + C-45 mdio transaction. + +Every non-ethernet PHY requires a compatible so that it could be probed based +on this compatible string. + +Additional information regarding generic multiplexer properties could be found +at- Documentation/devicetree/bindings/net/mdio-mux.txt + + +for example: + mdio_mux_iproc: mdio_mux_iproc@6602023c { + compatible = "brcm,mdio-mux-iproc"; + reg = <0x6602023c 0x14>; + #address-cells = <1>; + #size-cells = <0>; + mdio-integrated-mux; + + mdio@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + + pci_phy0: pci-phy@0 { + compatible = "brcm,ns2-pcie-phy"; + reg = <0x0>; + #phy-cells = <0>; + }; + }; + + mdio@7 { + reg = <0x7>; + #address-cells = <1>; + #size-cells = <0>; + + pci_phy1: pci-phy@0 { + compatible = "brcm,ns2-pcie-phy"; + reg = <0x0>; + #phy-cells = <0>; + }; + }; + mdio@10 { + reg = <0x10>; + #address-cells = <1>; + #size-cells = <0>; + + gphy0: eth-phy@10 { + reg = <0x10>; + }; + }; + }; -- 1.9.1