From patchwork Wed Nov 6 19:36:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 11231001 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 A567A112B for ; Wed, 6 Nov 2019 19:37:12 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 77BCB2166E for ; Wed, 6 Nov 2019 19:37:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DwlrOf5Y"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ith+FyjY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 77BCB2166E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ynPjkQhyN6+qI4Tx88zZkav/Dp3NoLpJo09+5tjDTBY=; b=DwlrOf5YuNdlMk ytj2julu1aoWwUYoTCrsrSUSNnLQQf+kRKFlRWUVc4wMeto1mGQiIb/5uAomhVfoEEmRWpzMl+G/M FiccIHHRvu06k3ot0QBuOhTyWhkeTIzzWQQn/NtQDjm+n5O71teim8DV8yCWMtLPanc/kxfSMRoqq 3eh4ga9M73IOG5TvvUG4kNaOtbMgux4XtE+uYrL30abz72WvAbbOktcbzPRztOkcaE1FuPLBOIPQQ H3FszUzt9HwCa5lPThgGXvn6ik89z6Lov1v0mxKHUCK2dr4WF0tJfgXum1UGOQJuiztmX7gxl0CLG 1eOnLof8ooLHeOQ2m5Lw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iSR79-0003RE-VO; Wed, 06 Nov 2019 19:37:11 +0000 Received: from mail-wr1-x442.google.com ([2a00:1450:4864:20::442]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iSR6X-0002h1-O0 for linux-arm-kernel@lists.infradead.org; Wed, 06 Nov 2019 19:36:38 +0000 Received: by mail-wr1-x442.google.com with SMTP id a15so27448952wrf.9 for ; Wed, 06 Nov 2019 11:36:33 -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 :mime-version:content-transfer-encoding; bh=gj4RT4MBYSN72SobANamHwk9q8SqC3Bq4JtqR0nv/88=; b=ith+FyjYfh++cNpEYyESkqNV2WQG2t3qx5/9OTWj8CcQ8Tx0Ho4mS7TB2wAukxmMe1 7w1KaKYooUfTUzPilS4Ailr9wwDmnAcwo9ZZCy9sAriE04kPtwxxW3z9uWgnRoZX08Aq QUFk0IjDpdNvxtyLOafBA9zK4Ucrq51PpczFdg6kZiTtckcTpTW+C7hI+CuTyRm4IwlQ /uTdIMeNVtt4/nrlEX8ZEt93K4LkPcbMJ7YCO21Fi0JY+L09txnvnTj1MJF8HxN8MheH /WRvhJKv2WKkb71culGvsEj0lMsaKFJ4n7NGNVBk5r5TImn664O6vDBtcsK81V05I6M7 AQ8g== 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:mime-version:content-transfer-encoding; bh=gj4RT4MBYSN72SobANamHwk9q8SqC3Bq4JtqR0nv/88=; b=Vxg/mDpME7KEdnYU7sEwUvbHzHU07IpUqOWpTRkH856VnlN8PzYk9c5H0AqeLJ/nX7 ACVX2eP6WnAeYnni57q2GS3JggWW41xBRFriOBBM/thjKrZr57TKKJZADoXcgtKPJ4Tq kzhjc+ZHOHhwJIVB/WUQqO/RVXw4sMXFfcBK74VK2cZZdl0Eo9ZXasJ3GWOxHJsMGYnU zYM7F+e+K5emF3Sd9ZNkz1aPhVIix16TSRyQmNMn5ma9z/OBwiKwmlN5FngyJt4gOOO/ LOSws0mKEdFUvRwaQ6x54o/AhHseprz6dHHeeydunvh2GEbFqyI0zf9F7XKgvaXBx6Pg /Ieg== X-Gm-Message-State: APjAAAVk46aMGA4ZKX4yrXAXv05AXWRJ/ZjaEBjx4h8hJxtR3E1vKikm JHg9+GDwUzJJNHpZ2TTaxwk= X-Google-Smtp-Source: APXvYqz9azLA+Dqz04lPNS8MBMy2mPkTQxd5aWdoJYpBB9Skkh0PrDAauvRn05Sa0YLfoJ0/etRUzA== X-Received: by 2002:a5d:4e90:: with SMTP id e16mr4567362wru.224.1573068992127; Wed, 06 Nov 2019 11:36:32 -0800 (PST) Received: from prasmi.home ([2a00:23c6:d18:6d00:1d3d:daa8:4e74:8240]) by smtp.gmail.com with ESMTPSA id 76sm4311737wma.0.2019.11.06.11.36.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Nov 2019 11:36:31 -0800 (PST) From: Lad Prabhakar X-Google-Original-From: Lad Prabhakar To: Bjorn Helgaas , Rob Herring , Mark Rutland , Geert Uytterhoeven , Magnus Damm , Kishon Vijay Abraham I , Marek Vasut , Yoshihiro Shimoda , linux-pci@vger.kernel.org Subject: [PATCH 3/5] PCI: rcar: Add R-Car PCIe endpoint device tree bindings Date: Wed, 6 Nov 2019 19:36:07 +0000 Message-Id: <20191106193609.19645-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191106193609.19645-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20191106193609.19645-1-prabhakar.mahadev-lad.rj@bp.renesas.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191106_113633_850311_7D7B23BA X-CRM114-Status: GOOD ( 14.81 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:442 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (prabhakar.csengg[at]gmail.com) 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chris Paterson , Lorenzo Pieralisi , Arnd Bergmann , Catalin Marinas , linux-kernel@vger.kernel.org, "Lad, Prabhakar" , linux-renesas-soc@vger.kernel.org, Greg Kroah-Hartman , Andrew Murray , Will Deacon , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: "Lad, Prabhakar" This patch adds the bindings for the R-Car PCIe endpoint driver. Signed-off-by: Lad, Prabhakar --- .../devicetree/bindings/pci/rcar-pci-ep.txt | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.txt diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-ep.txt b/Documentation/devicetree/bindings/pci/rcar-pci-ep.txt new file mode 100644 index 000000000000..b8c8616ca007 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/rcar-pci-ep.txt @@ -0,0 +1,43 @@ +* Renesas R-Car PCIe Endpoint Controller DT description + +Required properties: + "renesas,pcie-ep-r8a774c0" for the R8A774C0 SoC; + "renesas,pcie-ep-rcar-gen3" for a generic R-Car Gen3 or + RZ/G2 compatible device. + + When compatible with the generic version, nodes must list the + SoC-specific version corresponding to the platform first + followed by the generic version. + +- reg: Five register ranges as listed in the reg-names property +- reg-names: Must include the following names + - "apb-base" + - "memory0" + - "memory1" + - "memory2" + - "memory3" +- resets: Must contain phandles to PCIe-related reset lines exposed by IP block +- clocks: from common clock binding: clock specifiers for the PCIe controller + clock. +- clock-names: from common clock binding: should be "pcie". + +Optional Property: +- max-functions: Maximum number of functions that can be configured (default 1). + +Example: + +SoC-specific DT Entry: + + pcie_ep: pcie_ep@fe000000 { + compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2"; + reg = <0 0xfe000000 0 0x80000>, + <0x0 0xfe100000 0 0x100000>, + <0x0 0xfe200000 0 0x200000>, + <0x0 0x30000000 0 0x8000000>, + <0x0 0x38000000 0 0x8000000>; + reg-names = "apb-base", "memory0", "memory1", "memory2", "memory3"; + clocks = <&cpg CPG_MOD 319>; + clock-names = "pcie"; + power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>; + resets = <&cpg 319>; + };