From patchwork Tue Jan 14 07:22:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Lin X-Patchwork-Id: 205767 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 9CDDFC33CAD for ; Tue, 14 Jan 2020 07:25:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7CCC7222C4 for ; Tue, 14 Jan 2020 07:25:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729160AbgANHYr (ORCPT ); Tue, 14 Jan 2020 02:24:47 -0500 Received: from lucky1.263xmail.com ([211.157.147.130]:48156 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729015AbgANHYq (ORCPT ); Tue, 14 Jan 2020 02:24:46 -0500 Received: from localhost (unknown [192.168.167.16]) by lucky1.263xmail.com (Postfix) with ESMTP id 124AC7CF0C; Tue, 14 Jan 2020 15:24:42 +0800 (CST) X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P5437T140292994864896S1578986620990337_; Tue, 14 Jan 2020 15:24:42 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: X-RL-SENDER: shawn.lin@rock-chips.com X-SENDER: lintao@rock-chips.com X-LOGIN-NAME: shawn.lin@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Shawn Lin To: Heiko Stuebner , Lorenzo Pieralisi , Rob Herring , Kishon Vijay Abraham I , Bjorn Helgaas Cc: Jingoo Han , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, William Wu , Simon Xue , linux-rockchip@lists.infradead.org, Shawn Lin Subject: [PATCH 4/6] dt-bindings: rockchip: Add DesignWare based PCIe controller Date: Tue, 14 Jan 2020 15:22:58 +0800 Message-Id: <1578986580-71974-5-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1578986580-71974-1-git-send-email-shawn.lin@rock-chips.com> References: <1578986580-71974-1-git-send-email-shawn.lin@rock-chips.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Simon Xue Signed-off-by: Simon Xue Signed-off-by: Shawn Lin --- .../devicetree/bindings/pci/rockchip-dw-pcie.yaml | 132 +++++++++++++++++++++ 1 file changed, 132 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 0000000..c5205f6 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml @@ -0,0 +1,132 @@ +# 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 + +properties: + compatible: + enum: + - rockchip,rk1808-pcie + - snps,dw-pcie + + reg: + maxItems: 2 + + clocks: + items: + - description: High speed clock for PCIe + - description: Low speed clock for PCIe + - description: AHB clock for PCIe + - description: APB clock for PCIe + - description: Auxiliary clock for PCIe + + clock-names: + items: + - const: hsclk + - const: lsclk + - const: aclk + - const: pclk + - const: sclk-aux + + resets: + items: + - description: PCIe niu high reset line + - description: PCIe niu low reset line + - description: PCIe grf reset line + - description: PCIe control reset line + - description: PCIe control powerup reset line + - description: PCIe control master reset line + - description: PCIe control slave reset line + - description: PCIe control dbi reset line + - description: PCIe control button reset line + - description: PCIe control power engine reset line + - description: PCIe control core reset line + - description: PCIe control non-sticky reset line + - description: PCIe control sticky reset line + - description: PCIe control power reset line + - description: PCIe niu ahb reset line + - description: PCIe niu apb reset line + + reset-names: + items: + - const: niu-h + - const: niu-l + - const: grf-p + - const: ctl-p + - const: ctl-powerup + - const: ctl-mst-a + - const: ctl-slv-a + - const: ctl-dbi-a + - const: ctl-button + - const: ctl-pe + - const: ctl-core + - const: ctl-nsticky + - const: ctl-sticky + - const: ctl-pwr + - const: ctl-niu-a + - const: ctl-niu-p + + rockchip,usbpciegrf: + items: + - description: The grf for COMBPHY configuration and state registers. + +required: + - compatible + - reg + - clocks + - clock-names + - msi-map + - num-lanes + - phys + - phy-names + - resets + - reset-names + - rockchip,usbpciegrf + +additionalProperties: false + +examples: + - | + usb_pcie_grf: syscon@fe040000 { + compatible = "rockchip,usb-pcie-grf", "syscon"; + reg = <0x0 0xfe040000 0x0 0x1000>; + }; + + pcie0: pcie@fc400000 { + compatible = "rockchip,rk1808-pcie", "snps,dw-pcie"; + reg = <0x0 0xfc000000 0x0 0x400000>, + <0x0 0xfc400000 0x0 0x10000>; + clocks = <&cru HSCLK_PCIE>, <&cru LSCLK_PCIE>, + <&cru ACLK_PCIE>, <&cru PCLK_PCIE>, + <&cru SCLK_PCIE_AUX>; + clock-names = "hsclk", "lsclk", + "aclk", "pclk", + "sclk-aux"; + msi-map = <0x0 &its 0x0 0x1000>; + num-lanes = <2>; + phys = <&combphy PHY_TYPE_PCIE>; + phy-names = "pcie-phy"; + resets = <&cru SRST_PCIE_NIU_H>, <&cru SRST_PCIE_NIU_L>, + <&cru SRST_PCIEGRF_P>, <&cru SRST_PCIECTL_P>, + <&cru SRST_PCIECTL_POWERUP>, <&cru SRST_PCIECTL_MST_A>, + <&cru SRST_PCIECTL_SLV_A>, <&cru SRST_PCIECTL_DBI_A>, + <&cru SRST_PCIECTL_BUTTON>, <&cru SRST_PCIECTL_PE>, + <&cru SRST_PCIECTL_CORE>, <&cru SRST_PCIECTL_NSTICKY>, + <&cru SRST_PCIECTL_STICKY>, <&cru SRST_PCIECTL_PWR>, + <&cru SRST_PCIE_NIU_A>, <&cru SRST_PCIE_NIU_P>; + reset-names = "niu-h", "niu-l", "grf-p", "ctl-p", + "ctl-powerup", "ctl-mst-a", "ctl-slv-a", + "ctl-dbi-a", "ctl-button", "ctl-pe", + "ctl-core", "ctl-nsticky", "ctl-sticky", + "ctl-pwr", "ctl-niu-a", "ctl-niu-p"; + rockchip,usbpciegrf = <&usb_pcie_grf>; + }; + +...