From patchwork Tue Oct 15 08:36:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaowei Bao X-Patchwork-Id: 11189851 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9D69A13BD for ; Tue, 15 Oct 2019 08:48:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 87F1521D7D for ; Tue, 15 Oct 2019 08:48:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729416AbfJOIsL (ORCPT ); Tue, 15 Oct 2019 04:48:11 -0400 Received: from inva021.nxp.com ([92.121.34.21]:38068 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726430AbfJOIsK (ORCPT ); Tue, 15 Oct 2019 04:48:10 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E280C200056; Tue, 15 Oct 2019 10:48:07 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 14D55200913; Tue, 15 Oct 2019 10:48:01 +0200 (CEST) Received: from titan.ap.freescale.net (TITAN.ap.freescale.net [10.192.208.233]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 7354A402CA; Tue, 15 Oct 2019 16:47:52 +0800 (SGT) From: Xiaowei Bao To: Zhiqiang.Hou@nxp.com, bhelgaas@google.com, robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, leoyang.li@nxp.com, kishon@ti.com, lorenzo.pieralisi@arm.com, Minghuan.Lian@nxp.com, andrew.murray@arm.com, mingkai.hu@nxp.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Xiaowei Bao Subject: [PATCH v2 2/6] dt-bindings: Add DT binding for PCIE GEN4 EP of the layerscape Date: Tue, 15 Oct 2019 16:36:58 +0800 Message-Id: <20191015083702.21792-3-xiaowei.bao@nxp.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20191015083702.21792-1-xiaowei.bao@nxp.com> References: <20191015083702.21792-1-xiaowei.bao@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add the documentation for the Device Tree binding of the layerscape PCIe GEN4 controller with EP mode. Signed-off-by: Xiaowei Bao --- v2: - remove the status entry in EP Example. .../bindings/pci/layerscape-pcie-gen4.txt | 27 +++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt b/Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt index b40fb5d..06f9309 100644 --- a/Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt +++ b/Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt @@ -3,6 +3,8 @@ NXP Layerscape PCIe Gen4 controller This PCIe controller is based on the Mobiveil PCIe IP and thus inherits all the common properties defined in mobiveil-pcie.txt. +HOST MODE +========= Required properties: - compatible: should contain the platform identifier such as: "fsl,lx2160a-pcie" @@ -23,7 +25,20 @@ Required properties: - msi-parent : See the generic MSI binding described in Documentation/devicetree/bindings/interrupt-controller/msi.txt. -Example: +DEVICE MODE +========= +Required properties: +- compatible: should contain the platform identifier such as: + "fsl,lx2160a-pcie-ep" +- reg: base addresses and lengths of the PCIe controller register blocks. + "regs": PCIe controller registers. + "addr_space" EP device CPU address. +- apio-wins: number of requested apio outbound windows. + +Optional Property: +- max-functions: Maximum number of functions that can be configured (default 1). + +RC Example: pcie@3400000 { compatible = "fsl,lx2160a-pcie"; @@ -50,3 +65,13 @@ Example: <0000 0 0 3 &gic 0 0 GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>, <0000 0 0 4 &gic 0 0 GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>; }; + +EP Example: + + pcie_ep@3400000 { + compatible = "fsl,lx2160a-pcie-ep"; + reg = <0x00 0x03400000 0x0 0x00100000 + 0x80 0x00000000 0x8 0x00000000>; + reg-names = "regs", "addr_space"; + apio-wins = <8>; + };