From patchwork Mon Jun 29 12:00:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 1319269 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.a=rsa-sha256 header.s=mail header.b=S5gF1lYb; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49wftq3Tdlz9sV1 for ; Tue, 30 Jun 2020 06:57:07 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387978AbgF2U5F (ORCPT ); Mon, 29 Jun 2020 16:57:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731263AbgF2TNG (ORCPT ); Mon, 29 Jun 2020 15:13:06 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 058DDC0D941B; Mon, 29 Jun 2020 05:01:03 -0700 (PDT) Received: from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi [81.175.216.236]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 07B58734; Mon, 29 Jun 2020 14:01:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1593432062; bh=X0xCbcYYYzfCKHt5yFv1VQW59LoexinUu8b4tbBY7VU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S5gF1lYbPD5U7b9shzsI+EzCTcQZ14Chmrflm1b+TCuAJ2Yq0MXD2Ds1TsocSI50E RIyuIUhozo3GKTcD6xFieOC6MHOaAl4A1FEhFOr4jtLhwiM9KSSV0HIQeDL8I4wQZk jVcDb0HmYnbtZfjEjdhNQ06b/gTCz93lsoz9RNUA= From: Laurent Pinchart To: linux-kernel@vger.kernel.org Cc: Kishon Vijay Abraham I , Anurag Kumar Vulisha , Michal Simek , Vinod Koul , devicetree@vger.kernel.org Subject: [PATCH v9 1/3] dt-bindings: phy: Add DT bindings for Xilinx ZynqMP PSGTR PHY Date: Mon, 29 Jun 2020 15:00:52 +0300 Message-Id: <20200629120054.29338-2-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200629120054.29338-1-laurent.pinchart@ideasonboard.com> References: <20200629120054.29338-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Anurag Kumar Vulisha Add DT bindings for the Xilinx ZynqMP PHY. ZynqMP SoCs have a High Speed Processing System Gigabit Transceiver which provides PHY capabilities to USB, SATA, PCIE, Display Port and Ehernet SGMII controllers. Signed-off-by: Anurag Kumar Vulisha Signed-off-by: Laurent Pinchart Reviewed-by: Rob Herring --- Changes since v8: - Rebase on phy/next Changes since v7: - Switch to GPL-2.0-only OR BSD-2-Clause Changes since v6: - Fixed specification of compatible-dependent xlnx,tx-termination-fix property - Dropped status property from example - Use 4 spaces to indent example Changes since v5: - Document clocks and clock-names properties - Document resets and reset-names properties - Replace subnodes with an additional entry in the PHY cells - Drop lane frequency PHY cell, replaced by reference clock phandle - Convert bindings to YAML - Reword the subject line - Drop Rob's R-b as the bindings have significantly changed - Drop resets and reset-names properties --- .../bindings/phy/xlnx,zynqmp-psgtr.yaml | 105 ++++++++++++++++++ include/dt-bindings/phy/phy.h | 1 + 2 files changed, 106 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml diff --git a/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml b/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml new file mode 100644 index 000000000000..09e3cde7ebca --- /dev/null +++ b/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/xlnx,zynqmp-psgtr.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx ZynqMP Gigabit Transceiver PHY Device Tree Bindings + +maintainers: + - Laurent Pinchart + +description: | + This binding describes the Xilinx ZynqMP Gigabit Transceiver (GTR) PHY. The + GTR provides four lanes and is used by USB, SATA, PCIE, Display port and + Ethernet SGMII controllers. + +properties: + "#phy-cells": + const: 4 + description: | + The cells contain the following arguments. + + - description: The GTR lane + minimum: 0 + maximum: 3 + - description: The PHY type + enum: + - PHY_TYPE_DP + - PHY_TYPE_PCIE + - PHY_TYPE_SATA + - PHY_TYPE_SGMII + - PHY_TYPE_USB + - description: The PHY instance + minimum: 0 + maximum: 1 # for DP, SATA or USB + maximum: 3 # for PCIE or SGMII + - description: The reference clock number + minimum: 0 + maximum: 3 + + compatible: + enum: + - xlnx,zynqmp-psgtr-v1.1 + - xlnx,zynqmp-psgtr + + clocks: + minItems: 1 + maxItems: 4 + description: | + Clock for each PS_MGTREFCLK[0-3] reference clock input. Unconnected + inputs shall not have an entry. + + clock-names: + minItems: 1 + maxItems: 4 + items: + pattern: "^ref[0-3]$" + + reg: + items: + - description: SERDES registers block + - description: SIOU registers block + + reg-names: + items: + - const: serdes + - const: siou + + xlnx,tx-termination-fix: + description: | + Include this for fixing functional issue with the TX termination + resistance in GT, which can be out of spec for the XCZU9EG silicon + version. + type: boolean + +required: + - "#phy-cells" + - compatible + - reg + - reg-names + +if: + properties: + compatible: + const: xlnx,zynqmp-psgtr-v1.1 + +then: + properties: + xlnx,tx-termination-fix: false + +additionalProperties: false + +examples: + - | + phy: phy@fd400000 { + compatible = "xlnx,zynqmp-psgtr-v1.1"; + reg = <0x0 0xfd400000 0x0 0x40000>, + <0x0 0xfd3d0000 0x0 0x1000>; + reg-names = "serdes", "siou"; + clocks = <&refclks 3>, <&refclks 2>, <&refclks 0>; + clock-names = "ref1", "ref2", "ref3"; + #phy-cells = <4>; + }; + +... diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h index 3727ef72138b..36e8c241cf48 100644 --- a/include/dt-bindings/phy/phy.h +++ b/include/dt-bindings/phy/phy.h @@ -18,5 +18,6 @@ #define PHY_TYPE_UFS 5 #define PHY_TYPE_DP 6 #define PHY_TYPE_XPCS 7 +#define PHY_TYPE_SGMII 8 #endif /* _DT_BINDINGS_PHY */