From patchwork Wed Jan 20 10:16:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Xue X-Patchwork-Id: 12032121 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=-16.8 required=3.0 tests=BAYES_00, 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 54E04C4332E for ; Wed, 20 Jan 2021 11:30:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0D5BB23359 for ; Wed, 20 Jan 2021 11:30:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729666AbhATLX2 (ORCPT ); Wed, 20 Jan 2021 06:23:28 -0500 Received: from lucky1.263xmail.com ([211.157.147.132]:45014 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732591AbhATKTZ (ORCPT ); Wed, 20 Jan 2021 05:19:25 -0500 Received: from localhost (unknown [192.168.167.235]) by lucky1.263xmail.com (Postfix) with ESMTP id CA553EFECA; Wed, 20 Jan 2021 18:17:05 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from xxm-vm.localdomain (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P24739T140081880880896S1611137823657337_; Wed, 20 Jan 2021 18:17:06 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: <6437ee0df936cb16e67f5d472d753823> X-RL-SENDER: xxm@rock-chips.com X-SENDER: xxm@rock-chips.com X-LOGIN-NAME: xxm@rock-chips.com X-FST-TO: bhelgaas@google.com X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-System-Flag: 0 From: Simon Xue To: Bjorn Helgaas , Lorenzo Pieralisi Cc: linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, Simon Xue Subject: [PATCH v2 1/2] dt-bindings: rockchip: Add DesignWare based PCIe controller Date: Wed, 20 Jan 2021 18:16:57 +0800 Message-Id: <20210120101658.241134-1-xxm@rock-chips.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Signed-off-by: Simon Xue --- .../bindings/pci/rockchip-dw-pcie.yaml | 140 ++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml new file mode 100644 index 000000000000..9d3a57f5305e --- /dev/null +++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml @@ -0,0 +1,140 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DesignWare based PCIe RC controller on Rockchip SoCs + +maintainers: + - Shawn Lin + - Simon Xue + +description: |+ + RK3568 SoC PCIe host controller is based on the Synopsys DesignWare + PCIe IP and thus inherits all the common properties defined in + designware-pcie.txt. + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + +# We need a select here so we don't match all nodes with 'snps,dw-pcie' +select: + properties: + compatible: + contains: + const: rockchip,rk3568-pcie + required: + - compatible + +properties: + compatible: + item: + - const: rockchip,rk3568-pcie + - const: snps,dw-pcie + reg: + maxItems: 1 + + interrupt: + - description: system information + - description: power management control + - description: PCIe message + - description: legacy interrupt + - description: error report + + interrupt-names: + items: + - const: sys + - const: pmc + - const: msg + - const: legacy + - const: err + + clocks: + items: + - description: AHB clock for PCIe master + - description: AHB clock for PCIe slave + - description: AHB clock for PCIe dbi + - description: APB clock for PCIe + - description: Auxiliary clock for PCIe + + clock-names: + items: + - const: aclk_mst + - const: aclk_slv + - const: aclk_dbi + - const: pclk + - const: aux + + msi-map: true + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + + reset-names: + items: + - const: pipe + +required: + - compatible + - bus-range + - reg + - reg-names + - clocks + - clock-names + - msi-map + - num-lanes + - phys + - phy-names + - power-domains + - resets + - reset-names + +unevaluatedProperties: false + +examples: + - | + #include + #include + #include + + bus { + #address-cells = <2>; + #size-cells = <2>; + + pcie3x2: pcie@fe280000 { + compatible = "rockchip,rk3568-pcie", "snps,dw-pcie"; + #address-cells = <3>; + #size-cells = <2>; + bus-range = <0x20 0x2f>; + reg = <0x3 0xc0800000 0x0 0x400000>, + <0x0 0xfe280000 0x0 0x10000>; + reg-names = "pcie-dbi", "pcie-apb"; + interrupts = , + , + , + , + ; + interrupt-names = "sys", "pmc", "msg", "legacy", "err"; + clocks = <&cru ACLK_PCIE30X2_MST>, <&cru ACLK_PCIE30X2_SLV>, + <&cru ACLK_PCIE30X2_DBI>, <&cru PCLK_PCIE30X2>, + <&cru CLK_PCIE30X2_AUX_NDFT>; + clock-names = "aclk_mst", "aclk_slv", + "aclk_dbi", "pclk", + "aux"; + msi-map = <0x2000 &its 0x2000 0x1000>; + num-lanes = <2>; + phys = <&pcie30phy>; + phy-names = "pcie-phy"; + power-domains = <&power RK3568_PD_PIPE>; + ranges = <0x00000800 0x0 0x80000000 0x3 0x80000000 0x0 0x800000 + 0x81000000 0x0 0x80800000 0x3 0x80800000 0x0 0x100000 + 0x83000000 0x0 0x80900000 0x3 0x80900000 0x0 0x3f700000>; + resets = <&cru SRST_PCIE30X2_POWERUP>; + reset-names = "pipe"; + }; + }; +...