From mboxrd@z Thu Jan 1 00:00:00 1970 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=-23.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,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 E8003C4320E for ; Mon, 26 Jul 2021 08:32:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 828E660F57 for ; Mon, 26 Jul 2021 08:32:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232525AbhGZHwM (ORCPT ); Mon, 26 Jul 2021 03:52:12 -0400 Received: from lb2-smtp-cloud9.xs4all.net ([194.109.24.26]:46469 "EHLO lb2-smtp-cloud9.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231728AbhGZHwL (ORCPT ); Mon, 26 Jul 2021 03:52:11 -0400 Received: from copland.sibelius.xs4all.nl ([83.163.83.176]) by smtp-cloud9.xs4all.net with ESMTP id 7w2DmOzH54Jsb7w2QmW9Nr; Mon, 26 Jul 2021 10:32:38 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xs4all.nl; s=s2; t=1627288358; bh=GWt5LuWPf3oek+gIp/5dyhcc4QQE8RQI7HAJudeIgsw=; h=From:To:Subject:Date:Message-Id:MIME-Version:From:Subject; b=LOumNdCm5LdudnnCecwSz33JKKX1SuZ6ewF7zSDOR7+TzT/8PXSr+wCZlInAYgNwi mE7owpgG17hPX3tnU7n6Exkn+LAHtGnQBOVyTMfwGNfCgcCTuezsgOridF3LDE+9R/ Kp/8AyUoBUFWmZ5gVTgqCr//tS+GM4CZCIlHb10aw8U9+XEWLCVGe9r+OWUzGcghr2 FKleytXkh8OoBWs2+WYoylICTQwFncFquLX7ENMMA5DhJHwk55tYFHmwEeD2LbIvnH L4FIdfK+/35jYiBNpbWHnY7GnJ2PoeU8lgASLjBy1fCZxNACnjsigZG7v2ciT77ZeZ RBIcoCp91fdqA== From: Mark Kettenis To: devicetree@vger.kernel.org Cc: maz@kernel.org, robin.murphy@arm.com, sven@svenpeter.dev, Mark Kettenis , Hector Martin , Bjorn Helgaas , Rob Herring , linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: pci: Add DT bindings for apple,pcie Date: Mon, 26 Jul 2021 10:32:00 +0200 Message-Id: <20210726083204.93196-2-mark.kettenis@xs4all.nl> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210726083204.93196-1-mark.kettenis@xs4all.nl> References: <20210726083204.93196-1-mark.kettenis@xs4all.nl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMAE-Envelope: MS4xfP11OTtA1mcDlQcRvuB1CqGUBdkCQoJMby5ObOd4hsvrK9swzvorSiJRQLGZQiTkvCIUDx8iIj1Flzkh9+sPsNN6Hm48I2rjidwq3IcGbXWRv9OG7ePg kEqnUYJXlc471PE8nipHXO/rQ7CBAwPhDaJrWG8sLd2kTT1XMBvZ5b0MFIALxoGsAU7YUoF1lIBd99CTwNSufq++OXrWz9Y0xQ4KDPNUHCwDS5U3ljzb4o3M Fy+7dYmawgXiOkZwWO3wYnhgXlZtbhE6iZ0mCFxlBVE221gBQe+2IeP/GyfqKLUEHUHe0ysdxg1w/OO/Kf6+EGN5MuRWupEyTlvA5iXPQBJOJomiyALraQUm /+2DCYN1yLuuj4sbr/ZDBnObBoGnPzY/Sl5oaehoY+Iaew6xirLJAlplHcbvfz8Zjn9ctfAK9vxj2u2Vw9qepTunPgaHFdxSkjIN/YO65//lqbH8fOgEu1G5 wGw/E4oGLJr1rmpGh7t8IXFk6xZNP5iBdaGCj5iIsey8AaFr2vSrrVM4/RQ4UbBvNQ4r6Hqo4kCPR7ZsPS5gsEkwLHBtZ4KpgJ8/hQ== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mark Kettenis The Apple PCIe host controller is a PCIe host controller with multiple root ports present in Apple ARM SoC platforms, including various iPhone and iPad devices and the "Apple Silicon" Macs. Signed-off-by: Mark Kettenis --- .../devicetree/bindings/pci/apple,pcie.yaml | 166 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 167 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/apple,pcie.yaml diff --git a/Documentation/devicetree/bindings/pci/apple,pcie.yaml b/Documentation/devicetree/bindings/pci/apple,pcie.yaml new file mode 100644 index 000000000000..bfcbdee79c64 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/apple,pcie.yaml @@ -0,0 +1,166 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/apple,pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple PCIe host controller + +maintainers: + - Mark Kettenis + +description: | + The Apple PCIe host controller is a PCIe host controller with + multiple root ports present in Apple ARM SoC platforms, including + various iPhone and iPad devices and the "Apple Silicon" Macs. + The controller incorporates Synopsys DesigWare PCIe logic to + implements its root ports. But the ATU found on most DesignWare + PCIe host bridges is absent. + All root ports share a single ECAM space, but separate GPIOs are + used to take the PCI devices on those ports out of reset. Therefore + the standard "reset-gpio" and "max-link-speed" properties appear on + the child nodes that represent the PCI bridges that correspond to + the individual root ports. + MSIs are handled by the PCIe controller and translated into regular + interrupts. A range of 32 MSIs is provided. These 32 MSIs can be + distributed over the root ports as the OS sees fit by programming + the PCIe controller's port registers. + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + +properties: + compatible: + items: + - const: apple,t8103-pcie + - const: apple,pcie + + reg: + minItems: 3 + maxItems: 5 + + reg-names: + minItems: 3 + maxItems: 5 + items: + - const: config + - const: rc + - const: port0 + - const: port1 + - const: port2 + + ranges: + minItems: 2 + maxItems: 2 + + interrupts: + description: + Interrupt specifiers, one for each root port. + minItems: 1 + maxItems: 3 + + msi-controller: true + msi-parent: true + + msi-ranges: + description: + A list of pairs , where "intid" is the first + interrupt number that can be used as an MSI, and "span" the size + of that range. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + minItems: 2 + maxItems: 2 + + iommu-map: true + iommu-map-mask: true + +required: + - compatible + - reg + - reg-names + - bus-range + - interrupts + - msi-controller + - msi-parent + - msi-ranges + +unevaluatedProperties: false + +examples: + - | + #include + + soc { + #address-cells = <2>; + #size-cells = <2>; + + pcie0: pcie@690000000 { + compatible = "apple,t8103-pcie", "apple,pcie"; + device_type = "pci"; + + reg = <0x6 0x90000000 0x0 0x1000000>, + <0x6 0x80000000 0x0 0x4000>, + <0x6 0x81000000 0x0 0x8000>, + <0x6 0x82000000 0x0 0x8000>, + <0x6 0x83000000 0x0 0x8000>; + reg-names = "config", "rc", "port0", "port1", "port2"; + + interrupt-parent = <&aic>; + interrupts = , + , + ; + + msi-controller; + msi-parent = <&pcie0>; + msi-ranges = <704 32>; + + iommu-map = <0x100 &dart0 1 1>, + <0x200 &dart1 1 1>, + <0x300 &dart2 1 1>; + iommu-map-mask = <0xff00>; + + bus-range = <0 3>; + #address-cells = <3>; + #size-cells = <2>; + ranges = <0x43000000 0x6 0xa0000000 0x6 0xa0000000 0x0 0x20000000>, + <0x02000000 0x0 0xc0000000 0x6 0xc0000000 0x0 0x40000000>; + + clocks = <&pcie_core_clk>, <&pcie_aux_clk>, <&pcie_ref_clk>; + pinctrl-0 = <&pcie_pins>; + pinctrl-names = "default"; + + pci@0,0 { + device_type = "pci"; + reg = <0x0 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 152 0>; + max-link-speed = <2>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + + pci@1,0 { + device_type = "pci"; + reg = <0x800 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 153 0>; + max-link-speed = <2>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + + pci@2,0 { + device_type = "pci"; + reg = <0x1000 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 33 0>; + max-link-speed = <1>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 19135a9d778e..f4aa40d3166e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1694,6 +1694,7 @@ C: irc://chat.freenode.net/asahi-dev T: git https://github.com/AsahiLinux/linux.git F: Documentation/devicetree/bindings/arm/apple.yaml F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml +F: Documentation/devicetree/bindings/pci/apple,pcie.yaml F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml F: arch/arm64/boot/dts/apple/ F: drivers/irqchip/irq-apple-aic.c -- 2.32.0 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-22.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,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 B193CC4338F for ; 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bh=GWt5LuWPf3oek+gIp/5dyhcc4QQE8RQI7HAJudeIgsw=; h=From:To:Subject:Date:Message-Id:MIME-Version:From:Subject; b=LOumNdCm5LdudnnCecwSz33JKKX1SuZ6ewF7zSDOR7+TzT/8PXSr+wCZlInAYgNwi mE7owpgG17hPX3tnU7n6Exkn+LAHtGnQBOVyTMfwGNfCgcCTuezsgOridF3LDE+9R/ Kp/8AyUoBUFWmZ5gVTgqCr//tS+GM4CZCIlHb10aw8U9+XEWLCVGe9r+OWUzGcghr2 FKleytXkh8OoBWs2+WYoylICTQwFncFquLX7ENMMA5DhJHwk55tYFHmwEeD2LbIvnH L4FIdfK+/35jYiBNpbWHnY7GnJ2PoeU8lgASLjBy1fCZxNACnjsigZG7v2ciT77ZeZ RBIcoCp91fdqA== From: Mark Kettenis To: devicetree@vger.kernel.org Cc: maz@kernel.org, robin.murphy@arm.com, sven@svenpeter.dev, Mark Kettenis , Hector Martin , Bjorn Helgaas , Rob Herring , linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: pci: Add DT bindings for apple,pcie Date: Mon, 26 Jul 2021 10:32:00 +0200 Message-Id: <20210726083204.93196-2-mark.kettenis@xs4all.nl> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210726083204.93196-1-mark.kettenis@xs4all.nl> References: <20210726083204.93196-1-mark.kettenis@xs4all.nl> MIME-Version: 1.0 X-CMAE-Envelope: MS4xfP11OTtA1mcDlQcRvuB1CqGUBdkCQoJMby5ObOd4hsvrK9swzvorSiJRQLGZQiTkvCIUDx8iIj1Flzkh9+sPsNN6Hm48I2rjidwq3IcGbXWRv9OG7ePg kEqnUYJXlc471PE8nipHXO/rQ7CBAwPhDaJrWG8sLd2kTT1XMBvZ5b0MFIALxoGsAU7YUoF1lIBd99CTwNSufq++OXrWz9Y0xQ4KDPNUHCwDS5U3ljzb4o3M Fy+7dYmawgXiOkZwWO3wYnhgXlZtbhE6iZ0mCFxlBVE221gBQe+2IeP/GyfqKLUEHUHe0ysdxg1w/OO/Kf6+EGN5MuRWupEyTlvA5iXPQBJOJomiyALraQUm /+2DCYN1yLuuj4sbr/ZDBnObBoGnPzY/Sl5oaehoY+Iaew6xirLJAlplHcbvfz8Zjn9ctfAK9vxj2u2Vw9qepTunPgaHFdxSkjIN/YO65//lqbH8fOgEu1G5 wGw/E4oGLJr1rmpGh7t8IXFk6xZNP5iBdaGCj5iIsey8AaFr2vSrrVM4/RQ4UbBvNQ4r6Hqo4kCPR7ZsPS5gsEkwLHBtZ4KpgJ8/hQ== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210726_013239_582482_62BB084F X-CRM114-Status: GOOD ( 16.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Mark Kettenis The Apple PCIe host controller is a PCIe host controller with multiple root ports present in Apple ARM SoC platforms, including various iPhone and iPad devices and the "Apple Silicon" Macs. Signed-off-by: Mark Kettenis --- .../devicetree/bindings/pci/apple,pcie.yaml | 166 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 167 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/apple,pcie.yaml diff --git a/Documentation/devicetree/bindings/pci/apple,pcie.yaml b/Documentation/devicetree/bindings/pci/apple,pcie.yaml new file mode 100644 index 000000000000..bfcbdee79c64 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/apple,pcie.yaml @@ -0,0 +1,166 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/apple,pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple PCIe host controller + +maintainers: + - Mark Kettenis + +description: | + The Apple PCIe host controller is a PCIe host controller with + multiple root ports present in Apple ARM SoC platforms, including + various iPhone and iPad devices and the "Apple Silicon" Macs. + The controller incorporates Synopsys DesigWare PCIe logic to + implements its root ports. But the ATU found on most DesignWare + PCIe host bridges is absent. + All root ports share a single ECAM space, but separate GPIOs are + used to take the PCI devices on those ports out of reset. Therefore + the standard "reset-gpio" and "max-link-speed" properties appear on + the child nodes that represent the PCI bridges that correspond to + the individual root ports. + MSIs are handled by the PCIe controller and translated into regular + interrupts. A range of 32 MSIs is provided. These 32 MSIs can be + distributed over the root ports as the OS sees fit by programming + the PCIe controller's port registers. + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + +properties: + compatible: + items: + - const: apple,t8103-pcie + - const: apple,pcie + + reg: + minItems: 3 + maxItems: 5 + + reg-names: + minItems: 3 + maxItems: 5 + items: + - const: config + - const: rc + - const: port0 + - const: port1 + - const: port2 + + ranges: + minItems: 2 + maxItems: 2 + + interrupts: + description: + Interrupt specifiers, one for each root port. + minItems: 1 + maxItems: 3 + + msi-controller: true + msi-parent: true + + msi-ranges: + description: + A list of pairs , where "intid" is the first + interrupt number that can be used as an MSI, and "span" the size + of that range. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + minItems: 2 + maxItems: 2 + + iommu-map: true + iommu-map-mask: true + +required: + - compatible + - reg + - reg-names + - bus-range + - interrupts + - msi-controller + - msi-parent + - msi-ranges + +unevaluatedProperties: false + +examples: + - | + #include + + soc { + #address-cells = <2>; + #size-cells = <2>; + + pcie0: pcie@690000000 { + compatible = "apple,t8103-pcie", "apple,pcie"; + device_type = "pci"; + + reg = <0x6 0x90000000 0x0 0x1000000>, + <0x6 0x80000000 0x0 0x4000>, + <0x6 0x81000000 0x0 0x8000>, + <0x6 0x82000000 0x0 0x8000>, + <0x6 0x83000000 0x0 0x8000>; + reg-names = "config", "rc", "port0", "port1", "port2"; + + interrupt-parent = <&aic>; + interrupts = , + , + ; + + msi-controller; + msi-parent = <&pcie0>; + msi-ranges = <704 32>; + + iommu-map = <0x100 &dart0 1 1>, + <0x200 &dart1 1 1>, + <0x300 &dart2 1 1>; + iommu-map-mask = <0xff00>; + + bus-range = <0 3>; + #address-cells = <3>; + #size-cells = <2>; + ranges = <0x43000000 0x6 0xa0000000 0x6 0xa0000000 0x0 0x20000000>, + <0x02000000 0x0 0xc0000000 0x6 0xc0000000 0x0 0x40000000>; + + clocks = <&pcie_core_clk>, <&pcie_aux_clk>, <&pcie_ref_clk>; + pinctrl-0 = <&pcie_pins>; + pinctrl-names = "default"; + + pci@0,0 { + device_type = "pci"; + reg = <0x0 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 152 0>; + max-link-speed = <2>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + + pci@1,0 { + device_type = "pci"; + reg = <0x800 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 153 0>; + max-link-speed = <2>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + + pci@2,0 { + device_type = "pci"; + reg = <0x1000 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 33 0>; + max-link-speed = <1>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 19135a9d778e..f4aa40d3166e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1694,6 +1694,7 @@ C: irc://chat.freenode.net/asahi-dev T: git https://github.com/AsahiLinux/linux.git F: Documentation/devicetree/bindings/arm/apple.yaml F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml +F: Documentation/devicetree/bindings/pci/apple,pcie.yaml F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml F: arch/arm64/boot/dts/apple/ F: drivers/irqchip/irq-apple-aic.c -- 2.32.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel