From patchwork Thu Dec 31 10:18:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongtao Wu X-Patchwork-Id: 11993943 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFF5DC433DB for ; Thu, 31 Dec 2020 10:19:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B4C93222F9 for ; Thu, 31 Dec 2020 10:19:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726480AbgLaKTV (ORCPT ); Thu, 31 Dec 2020 05:19:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726155AbgLaKTV (ORCPT ); Thu, 31 Dec 2020 05:19:21 -0500 Received: from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com [IPv6:2607:f8b0:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C7C2EC061575; Thu, 31 Dec 2020 02:18:40 -0800 (PST) Received: by mail-pg1-x52a.google.com with SMTP id i5so12905504pgo.1; Thu, 31 Dec 2020 02:18:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=wt9aTWsCxTK7BCW3efLWqM4G7L9tFvgWhfSlVEaResA=; b=fspu6YW/lHUq6ophkaJE7TRHExxHRWfEDUYUMRj5a4s2+pQQRpa9nEjW9mlx2TlayK zXpX4/J7dhktZJotqLAYGLd2y240jq2Y7z0e+5o1VPCXxFZIbRxt+9kevPafIzi9AuY7 D+fSr1LoMLn8oLp96udArYLDe+DEvTRz8KSYTPbmJ0D08RatDNtc0gUhKEttodQYGA9V Z22sdm8c68Tk6OQjhNKxSv887MnH8Ua2Vg0OtOUgtGrGN0ANHNhenYjXliFqOs+vnXb/ UzNDDrnb8/WsdJjBnKsLVdZykPhBxTFi5IiknrnqlZtjIt99x0bwgRAaY7FZfkbpUphD Lfrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=wt9aTWsCxTK7BCW3efLWqM4G7L9tFvgWhfSlVEaResA=; b=lSKDLYFF4nKF4A640D1HJZftJhM6+AE6mN4u+mPqO8BE9Knoyn+juv9tIzmSdP4Gr1 4lXw+Gf3ELZhSiamJZUnGCTHMS9y4aRp5pdS92wReouNWFvlwQq2d+cSz+RLnOv1m4DC W6BVlffRVJH1ZQIrJavgom9/Rl6/4NV8M87Fgui+046E1ZJrCH0OpDuhgGX4ou+VzLZD Tjp8JX4u5L3HzNgH9Ti8DGGC2b+PFFwJKK618OYFdRp5dhWjuOnZgSguOcfJMQJ1CxXe QVvpKSzDgL/tNZBpreftg/ZpzN6UzrHEsfPxvyeOg0PVulg0Ohp3YTFhRv6EQNkcppFo 1Aaw== X-Gm-Message-State: AOAM532oqNNEUQiuWPbeepK1ZZ9ytyBM3jPdwKE+rNldQqoOYzsLxmTL bdDlyXKt5wAel11xkxk4r78= X-Google-Smtp-Source: ABdhPJw5KXc3ZEYv5eTvl93pa6DdukkfZWQ7S9owJ3qhd5bekszmoRBHslBh11Nohgeq2eheG7iQPw== X-Received: by 2002:a63:4d59:: with SMTP id n25mr37051821pgl.122.1609409920399; Thu, 31 Dec 2020 02:18:40 -0800 (PST) Received: from sh05419pcu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id a141sm45470937pfa.189.2020.12.31.02.18.36 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 31 Dec 2020 02:18:39 -0800 (PST) From: Hongtao Wu To: Lorenzo Pieralisi , Rob Herring Cc: Orson Zhai , Baolin Wang , Chunyan Zhang , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Hongtao Wu Subject: [PATCH v5 1/2] dt-bindings: PCI: sprd: Document Unisoc PCIe RC host controller Date: Thu, 31 Dec 2020 18:18:24 +0800 Message-Id: <1609409905-30721-2-git-send-email-wuht06@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1609409905-30721-1-git-send-email-wuht06@gmail.com> References: <1609409905-30721-1-git-send-email-wuht06@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Hongtao Wu This series adds PCIe bindings for Unisoc SoCs. This controller is based on DesignWare PCIe IP. Signed-off-by: Hongtao Wu Reviewed-by: Rob Herring --- .../devicetree/bindings/pci/sprd-pcie.yaml | 93 ++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/sprd-pcie.yaml -- 2.7.4 diff --git a/Documentation/devicetree/bindings/pci/sprd-pcie.yaml b/Documentation/devicetree/bindings/pci/sprd-pcie.yaml new file mode 100644 index 0000000..ede06a8 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/sprd-pcie.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/sprd-pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SoC PCIe Host Controller Device Tree Bindings + +maintainers: + - Hongtao Wu + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + +properties: + compatible: + items: + - const: sprd,ums9520-pcie + + reg: + minItems: 2 + items: + - description: Controller control and status registers. + - description: PCIe configuration registers. + + reg-names: + items: + - const: dbi + - const: config + + ranges: + maxItems: 2 + + num-lanes: + maximum: 1 + description: Number of lanes to use for this port. + + interrupts: + minItems: 1 + description: Builtin MSI controller and PCIe host controller. + + interrupt-names: + items: + - const: msi + + sprd,regmap-aon: + $ref: '/schemas/types.yaml#/definitions/phandle' + description: + Phandle to the AON system controller node (to access the + AON_ACCESS_PCIE_EN register on ums9520). + sprd,regmap-pmu: + $ref: '/schemas/types.yaml#/definitions/phandle' + description: + Phandle to the PMU system controller node (to access the PERST_N_ASSERT + register on ums9520). + +required: + - compatible + - reg + - reg-names + - num-lanes + - ranges + - interrupts + - interrupt-names + +additionalProperties: true + +examples: + - | + #include + + ipa { + #address-cells = <2>; + #size-cells = <2>; + + pcie0: pcie@2b100000 { + compatible = "sprd,ums9520-pcie"; + reg = <0x0 0x2b100000 0x0 0x2000>, + <0x2 0x00000000 0x0 0x2000>; + reg-names = "dbi", "config"; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + ranges = <0x01000000 0x0 0x00000000 0x2 0x00002000 0x0 0x00010000>, + <0x03000000 0x0 0x10000000 0x2 0x10000000 0x1 0xefffffff>; + num-lanes = <1>; + interrupts = ; + interrupt-names = "msi"; + + sprd,regmap-aon = <&aon_regs>; + sprd,regmap-pmu = <&pmu_regs>; + }; + };