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09 Aug 2024 08:13:59 -0700 X-CSE-ConnectionGUID: 64oflbhEToKj8kbv1WbwSw== X-CSE-MsgGUID: bRTN/bhTRrCFoKY06eUQww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,276,1716274800"; d="scan'208";a="57485952" Received: from test2-linux-lab.an.intel.com ([10.122.105.166]) by orviesa010.jf.intel.com with ESMTP; 09 Aug 2024 08:13:57 -0700 From: matthew.gerlach@linux.intel.com To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, dinguyen@kernel.org, joyce.ooi@intel.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Gerlach , Conor Dooley Subject: [PATCH v2 1/7] dt-bindings: PCI: altera: Convert to YAML Date: Fri, 9 Aug 2024 10:12:07 -0500 Message-Id: <20240809151213.94533-2-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> References: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Matthew Gerlach Convert the device tree bindings for the Altera Root Port PCIe controller from text to YAML. Update the entries in the interrupt-map field to have the correct number of address cells for the interrupt parent. Signed-off-by: Matthew Gerlach Reviewed-by: Conor Dooley --- v8: - Precisely constrain the number of items for reg and reg-names properties. Constrain maxItems to 2 for altr,pcie-root-port-1.0. Constrain minItems to 3 for altr,pcie-root-port-2.0. v7: - Keep original example dts, but fix warnings of interrupt-map field. v6: - Fix dt_binding_check warnings by creating interrupt-controller subnode and fixing interrupt-map. - Updated filename in MAINTAINERS. v5: - add interrupt-controller #interrupt-cells to required field - don't touch original example dts v4: - reorder reg-names to match original binding - move reg and reg-names to top level with limits. v3: - Added years to copyright - Correct order in file of allOf and unevaluatedProperties - remove items: in compatible field - fix reg and reg-names constraints - replace deprecated pci-bus.yaml with pci-host-bridge.yaml - fix entries in ranges property - remove device_type from required v2: - Move allOf: to bottom of file, just like example-schema is showing - add constraint for reg and reg-names - remove unneeded device_type - drop #address-cells and #size-cells - change minItems to maxItems for interrupts: - change msi-parent to just "msi-parent: true" - cleaned up required: - make subject consistent with other commits coverting to YAML - s/overt/onvert/g --- .../devicetree/bindings/pci/altera-pcie.txt | 50 -------- .../bindings/pci/altr,pcie-root-port.yaml | 114 ++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 115 insertions(+), 51 deletions(-) delete mode 100644 Documentation/devicetree/bindings/pci/altera-pcie.txt create mode 100644 Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml diff --git a/Documentation/devicetree/bindings/pci/altera-pcie.txt b/Documentation/devicetree/bindings/pci/altera-pcie.txt deleted file mode 100644 index 816b244a221e..000000000000 --- a/Documentation/devicetree/bindings/pci/altera-pcie.txt +++ /dev/null @@ -1,50 +0,0 @@ -* Altera PCIe controller - -Required properties: -- compatible : should contain "altr,pcie-root-port-1.0" or "altr,pcie-root-port-2.0" -- reg: a list of physical base address and length for TXS and CRA. - For "altr,pcie-root-port-2.0", additional HIP base address and length. -- reg-names: must include the following entries: - "Txs": TX slave port region - "Cra": Control register access region - "Hip": Hard IP region (if "altr,pcie-root-port-2.0") -- interrupts: specifies the interrupt source of the parent interrupt - controller. The format of the interrupt specifier depends - on the parent interrupt controller. -- device_type: must be "pci" -- #address-cells: set to <3> -- #size-cells: set to <2> -- #interrupt-cells: set to <1> -- ranges: describes the translation of addresses for root ports and - standard PCI regions. -- interrupt-map-mask and interrupt-map: standard PCI properties to define the - mapping of the PCIe interface to interrupt numbers. - -Optional properties: -- msi-parent: Link to the hardware entity that serves as the MSI controller - for this PCIe controller. -- bus-range: PCI bus numbers covered - -Example - pcie_0: pcie@c00000000 { - compatible = "altr,pcie-root-port-1.0"; - reg = <0xc0000000 0x20000000>, - <0xff220000 0x00004000>; - reg-names = "Txs", "Cra"; - interrupt-parent = <&hps_0_arm_gic_0>; - interrupts = <0 40 4>; - interrupt-controller; - #interrupt-cells = <1>; - bus-range = <0x0 0xFF>; - device_type = "pci"; - msi-parent = <&msi_to_gic_gen_0>; - #address-cells = <3>; - #size-cells = <2>; - interrupt-map-mask = <0 0 0 7>; - interrupt-map = <0 0 0 1 &pcie_0 1>, - <0 0 0 2 &pcie_0 2>, - <0 0 0 3 &pcie_0 3>, - <0 0 0 4 &pcie_0 4>; - ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000 - 0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>; - }; diff --git a/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml new file mode 100644 index 000000000000..52533fccc134 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml @@ -0,0 +1,114 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2015, 2019, 2024, Intel Corporation +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/altr,pcie-root-port.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Altera PCIe Root Port + +maintainers: + - Matthew Gerlach + +properties: + compatible: + enum: + - altr,pcie-root-port-1.0 + - altr,pcie-root-port-2.0 + + reg: + items: + - description: TX slave port region + - description: Control register access region + - description: Hard IP region + minItems: 2 + + reg-names: + items: + - const: Txs + - const: Cra + - const: Hip + minItems: 2 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + interrupt-map-mask: + items: + - const: 0 + - const: 0 + - const: 0 + - const: 7 + + interrupt-map: + maxItems: 4 + + "#interrupt-cells": + const: 1 + + msi-parent: true + +required: + - compatible + - reg + - reg-names + - interrupts + - "#interrupt-cells" + - interrupt-controller + - interrupt-map + - interrupt-map-mask + +allOf: + - $ref: /schemas/pci/pci-host-bridge.yaml# + - if: + properties: + compatible: + enum: + - altr,pcie-root-port-1.0 + then: + properties: + reg: + maxItems: 2 + + reg-names: + maxItems: 2 + + else: + properties: + reg: + minItems: 3 + + reg-names: + minItems: 3 + + +unevaluatedProperties: false + +examples: + - | + #include + #include + pcie_0: pcie@c00000000 { + compatible = "altr,pcie-root-port-1.0"; + reg = <0xc0000000 0x20000000>, + <0xff220000 0x00004000>; + reg-names = "Txs", "Cra"; + interrupt-parent = <&hps_0_arm_gic_0>; + interrupts = ; + interrupt-controller; + #interrupt-cells = <1>; + bus-range = <0x0 0xff>; + device_type = "pci"; + msi-parent = <&msi_to_gic_gen_0>; + #address-cells = <3>; + #size-cells = <2>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_0 0 0 0 1>, + <0 0 0 2 &pcie_0 0 0 0 2>, + <0 0 0 3 &pcie_0 0 0 0 3>, + <0 0 0 4 &pcie_0 0 0 0 4>; + ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000>, + <0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 1e71f97fb674..53f239114400 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17435,7 +17435,7 @@ PCI DRIVER FOR ALTERA PCIE IP M: Joyce Ooi L: linux-pci@vger.kernel.org S: Supported -F: Documentation/devicetree/bindings/pci/altera-pcie.txt +F: Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml F: drivers/pci/controller/pcie-altera.c PCI DRIVER FOR APPLIEDMICRO XGENE From patchwork Fri Aug 9 15:12:08 2024 Content-Type: text/plain; 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09 Aug 2024 08:14:00 -0700 X-CSE-ConnectionGUID: IaUgDPB8Q0aWSCUZEORVdQ== X-CSE-MsgGUID: qLg8g6jrRLOqg26agkGRCA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,276,1716274800"; d="scan'208";a="57485955" Received: from test2-linux-lab.an.intel.com ([10.122.105.166]) by orviesa010.jf.intel.com with ESMTP; 09 Aug 2024 08:13:59 -0700 From: matthew.gerlach@linux.intel.com To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, dinguyen@kernel.org, joyce.ooi@intel.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Gerlach , Conor Dooley Subject: [PATCH v2 2/7] dt-bindings: PCI: altera: msi: Convert to YAML Date: Fri, 9 Aug 2024 10:12:08 -0500 Message-Id: <20240809151213.94533-3-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> References: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Matthew Gerlach Convert the device tree bindings for the Altera PCIe MSI controller from text to YAML. Signed-off-by: Matthew Gerlach Reviewed-by: Conor Dooley --- v2: remove unused label --- .../bindings/pci/altera-pcie-msi.txt | 27 -------- .../bindings/pci/altr,msi-controller.yaml | 65 +++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 66 insertions(+), 28 deletions(-) delete mode 100644 Documentation/devicetree/bindings/pci/altera-pcie-msi.txt create mode 100644 Documentation/devicetree/bindings/pci/altr,msi-controller.yaml diff --git a/Documentation/devicetree/bindings/pci/altera-pcie-msi.txt b/Documentation/devicetree/bindings/pci/altera-pcie-msi.txt deleted file mode 100644 index 9514c327d31b..000000000000 --- a/Documentation/devicetree/bindings/pci/altera-pcie-msi.txt +++ /dev/null @@ -1,27 +0,0 @@ -* Altera PCIe MSI controller - -Required properties: -- compatible: should contain "altr,msi-1.0" -- reg: specifies the physical base address of the controller and - the length of the memory mapped region. -- reg-names: must include the following entries: - "csr": CSR registers - "vector_slave": vectors slave port region -- interrupts: specifies the interrupt source of the parent interrupt - controller. The format of the interrupt specifier depends on the - parent interrupt controller. -- num-vectors: number of vectors, range 1 to 32. -- msi-controller: indicates that this is MSI controller node - - -Example -msi0: msi@0xFF200000 { - compatible = "altr,msi-1.0"; - reg = <0xFF200000 0x00000010 - 0xFF200010 0x00000080>; - reg-names = "csr", "vector_slave"; - interrupt-parent = <&hps_0_arm_gic_0>; - interrupts = <0 42 4>; - msi-controller; - num-vectors = <32>; -}; diff --git a/Documentation/devicetree/bindings/pci/altr,msi-controller.yaml b/Documentation/devicetree/bindings/pci/altr,msi-controller.yaml new file mode 100644 index 000000000000..98814862d006 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/altr,msi-controller.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2015, 2024, Intel Corporation +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/altr,msi-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Altera PCIe MSI controller + +maintainers: + - Matthew Gerlach + +properties: + compatible: + enum: + - altr,msi-1.0 + + reg: + items: + - description: CSR registers + - description: Vectors slave port region + + reg-names: + items: + - const: csr + - const: vector_slave + + interrupts: + maxItems: 1 + + msi-controller: true + + num-vectors: + description: number of vectors + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + maximum: 32 + +required: + - compatible + - reg + - reg-names + - interrupts + - msi-controller + - num-vectors + +allOf: + - $ref: /schemas/interrupt-controller/msi-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + #include + msi@ff200000 { + compatible = "altr,msi-1.0"; + reg = <0xff200000 0x00000010>, + <0xff200010 0x00000080>; + reg-names = "csr", "vector_slave"; + interrupt-parent = <&hps_0_arm_gic_0>; + interrupts = ; + msi-controller; + num-vectors = <32>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 53f239114400..29025f24c087 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17665,7 +17665,7 @@ PCI MSI DRIVER FOR ALTERA MSI IP M: Joyce Ooi L: linux-pci@vger.kernel.org S: Supported -F: Documentation/devicetree/bindings/pci/altera-pcie-msi.txt +F: Documentation/devicetree/bindings/pci/altr,msi-controller.yaml F: drivers/pci/controller/pcie-altera-msi.c PCI MSI DRIVER FOR APPLIEDMICRO XGENE From patchwork Fri Aug 9 15:12:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: matthew.gerlach@linux.intel.com X-Patchwork-Id: 1970995 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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09 Aug 2024 08:14:00 -0700 From: matthew.gerlach@linux.intel.com To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, dinguyen@kernel.org, joyce.ooi@intel.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Gerlach Subject: [PATCH v2 3/7] dt-bindings: PCI: altera: Add binding for Agilex Date: Fri, 9 Aug 2024 10:12:09 -0500 Message-Id: <20240809151213.94533-4-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> References: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Matthew Gerlach Add the compatible bindings for the three variants of Agilex PCIe Hard IP. Signed-off-by: Matthew Gerlach Reviewed-by: Rob Herring (Arm) --- .../devicetree/bindings/pci/altr,pcie-root-port.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml index 52533fccc134..ca9691ec87d2 100644 --- a/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml +++ b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml @@ -12,9 +12,18 @@ maintainers: properties: compatible: + description: altr,pcie-root-port-1.0 is used for the Cyclone5 + family of chips. The Stratix10 family of chips is supported + by altr,pcie-root-port-2.0. 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Signed-off-by: Matthew Gerlach --- arch/arm64/boot/dts/intel/socfpga_agilex.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi index 2a5eeb21da47..98e14b9b4228 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi +++ b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi @@ -149,7 +149,7 @@ usbphy0: usbphy { compatible = "usb-nop-xceiv"; }; - soc@0 { + soc0: soc@0 { #address-cells = <1>; #size-cells = <1>; compatible = "simple-bus"; From patchwork Fri Aug 9 15:12:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: matthew.gerlach@linux.intel.com X-Patchwork-Id: 1970998 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=AXC1B1xw; 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09 Aug 2024 08:14:03 -0700 From: matthew.gerlach@linux.intel.com To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, dinguyen@kernel.org, joyce.ooi@intel.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Gerlach Subject: [PATCH v2 5/7] arm64: dts: agilex: add dtsi for PCIe Root Port Date: Fri, 9 Aug 2024 10:12:11 -0500 Message-Id: <20240809151213.94533-6-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> References: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Matthew Gerlach Add the base device tree for support of the PCIe Root Port for the Agilex family of chips. Signed-off-by: Matthew Gerlach --- v2: - Rename node to fix schema check error. --- .../intel/socfpga_agilex_pcie_root_port.dtsi | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_pcie_root_port.dtsi diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_pcie_root_port.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex_pcie_root_port.dtsi new file mode 100644 index 000000000000..50f131f5791b --- /dev/null +++ b/arch/arm64/boot/dts/intel/socfpga_agilex_pcie_root_port.dtsi @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2024, Intel Corporation + */ +&soc0 { + aglx_hps_bridges: fpga-bus@80000000 { + compatible = "simple-bus"; + reg = <0x80000000 0x20200000>, + <0xf9000000 0x00100000>; + reg-names = "axi_h2f", "axi_h2f_lw"; + #address-cells = <0x2>; + #size-cells = <0x1>; + ranges = <0x00000000 0x00000000 0x80000000 0x00040000>, + <0x00000000 0x10000000 0x90100000 0x0ff00000>, + <0x00000000 0x20000000 0xa0000000 0x00200000>, + <0x00000001 0x00010000 0xf9010000 0x00008000>, + <0x00000001 0x00018000 0xf9018000 0x00000080>, + <0x00000001 0x00018080 0xf9018080 0x00000010>; + + pcie_0_pcie_aglx: pcie@200000000 { + reg = <0x00000000 0x10000000 0x10000000>, + <0x00000001 0x00010000 0x00008000>, + <0x00000000 0x20000000 0x00200000>; + reg-names = "Txs", "Cra", "Hip"; + interrupt-parent = <&intc>; + interrupts = ; + interrupt-controller; + #interrupt-cells = <0x1>; + device_type = "pci"; + bus-range = <0x0000000 0x000000ff>; + ranges = <0x82000000 0x00000000 0x00100000 0x00000000 0x10000000 0x00000000 0x0ff00000>; + msi-parent = <&pcie_0_msi_irq>; + #address-cells = <0x3>; + #size-cells = <0x2>; + interrupt-map-mask = <0x0 0x0 0x0 0x7>; + interrupt-map = <0x0 0x0 0x0 0x1 &pcie_0_pcie_aglx 0 0 0 0x1>, + <0x0 0x0 0x0 0x2 &pcie_0_pcie_aglx 0 0 0 0x2>, + <0x0 0x0 0x0 0x3 &pcie_0_pcie_aglx 0 0 0 0x3>, + <0x0 0x0 0x0 0x4 &pcie_0_pcie_aglx 0 0 0 0x4>; + status = "disabled"; + }; + + pcie_0_msi_irq: msi@10008080 { + compatible = "altr,msi-1.0"; + reg = <0x00000001 0x00018080 0x00000010>, + <0x00000001 0x00018000 0x00000080>; + reg-names = "csr", "vector_slave"; + interrupt-parent = <&intc>; 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09 Aug 2024 08:14:05 -0700 X-CSE-ConnectionGUID: 9xvmIFktQbm1fFWpSAE/2A== X-CSE-MsgGUID: OTjUcCJgQt6WNr7TmSfHMw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,276,1716274800"; d="scan'208";a="57485971" Received: from test2-linux-lab.an.intel.com ([10.122.105.166]) by orviesa010.jf.intel.com with ESMTP; 09 Aug 2024 08:14:04 -0700 From: matthew.gerlach@linux.intel.com To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, dinguyen@kernel.org, joyce.ooi@intel.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Gerlach Subject: [PATCH v2 6/7] arm64: dts: agilex: add dts enabling PCIe Root Port Date: Fri, 9 Aug 2024 10:12:12 -0500 Message-Id: <20240809151213.94533-7-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> References: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Matthew Gerlach Add a device tree enabling PCIe Root Port support on an Agilex F-series Development Kit which has the P-tile variant PCIe IP. Signed-off-by: Matthew Gerlach --- arch/arm64/boot/dts/intel/Makefile | 1 + .../socfpga_agilex7f_socdk_pcie_root_port.dts | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile index d39cfb723f5b..737e81c3c3f7 100644 --- a/arch/arm64/boot/dts/intel/Makefile +++ b/arch/arm64/boot/dts/intel/Makefile @@ -2,6 +2,7 @@ dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \ socfpga_agilex_socdk.dtb \ socfpga_agilex_socdk_nand.dtb \ + socfpga_agilex7f_socdk_pcie_root_port.dtb \ socfpga_agilex5_socdk.dtb \ socfpga_n5x_socdk.dtb dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts b/arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts new file mode 100644 index 000000000000..76a989ba6a44 --- /dev/null +++ b/arch/arm64/boot/dts/intel/socfpga_agilex7f_socdk_pcie_root_port.dts @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2024, Intel Corporation + */ + +#include "socfpga_agilex_socdk.dts" +#include "socfpga_agilex_pcie_root_port.dtsi" + +&pcie_0_pcie_aglx { + status = "okay"; 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09 Aug 2024 08:14:07 -0700 X-CSE-ConnectionGUID: sjxMwh9DS66eDItf/lbZBw== X-CSE-MsgGUID: oVFMj1gzSp61oGQgw8VkYA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,276,1716274800"; d="scan'208";a="57485974" Received: from test2-linux-lab.an.intel.com ([10.122.105.166]) by orviesa010.jf.intel.com with ESMTP; 09 Aug 2024 08:14:05 -0700 From: matthew.gerlach@linux.intel.com To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, dinguyen@kernel.org, joyce.ooi@intel.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: "D M, Sharath Kumar" , D@web.codeaurora.org, M@web.codeaurora.org, Matthew Gerlach Subject: [PATCH v2 7/7] PCI: altera: Add Agilex support Date: Fri, 9 Aug 2024 10:12:13 -0500 Message-Id: <20240809151213.94533-8-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> References: <20240809151213.94533-1-matthew.gerlach@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: "D M, Sharath Kumar" Add PCIe root port controller support Agilex family of chips. Signed-off-by: D M, Sharath Kumar Signed-off-by: Matthew Gerlach --- v2: - Match historical style of subject. - Remove unrelated changes. - Fix indentation. --- drivers/pci/controller/pcie-altera.c | 246 ++++++++++++++++++++++++++- 1 file changed, 237 insertions(+), 9 deletions(-) diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c index ef73baefaeb9..05ba66825325 100644 --- a/drivers/pci/controller/pcie-altera.c +++ b/drivers/pci/controller/pcie-altera.c @@ -78,9 +78,19 @@ #define S10_TLP_FMTTYPE_CFGWR0 0x45 #define S10_TLP_FMTTYPE_CFGWR1 0x44 +#define AGLX_RP_CFG_ADDR(pcie, reg) (((pcie)->hip_base) + (reg)) +#define AGLX_RP_SECONDARY(pcie) \ + readb(AGLX_RP_CFG_ADDR(pcie, PCI_SECONDARY_BUS)) + +#define AGLX_BDF_REG 0x00002004 +#define AGLX_ROOT_PORT_IRQ_STATUS 0x14c +#define AGLX_ROOT_PORT_IRQ_ENABLE 0x150 +#define CFG_AER BIT(4) + enum altera_pcie_version { ALTERA_PCIE_V1 = 0, ALTERA_PCIE_V2, + ALTERA_PCIE_V3, }; struct altera_pcie { @@ -103,6 +113,11 @@ struct altera_pcie_ops { int size, u32 *value); int (*rp_write_cfg)(struct altera_pcie *pcie, u8 busno, int where, int size, u32 value); + int (*ep_read_cfg)(struct altera_pcie *pcie, u8 busno, + unsigned int devfn, int where, int size, u32 *value); + int (*ep_write_cfg)(struct altera_pcie *pcie, u8 busno, + unsigned int devfn, int where, int size, u32 value); + void (*rp_isr)(struct irq_desc *desc); }; struct altera_pcie_data { @@ -113,6 +128,9 @@ struct altera_pcie_data { u32 cfgrd1; u32 cfgwr0; u32 cfgwr1; + u32 port_conf_offset; + u32 port_irq_status_offset; + u32 port_irq_enable_offset; }; struct tlp_rp_regpair_t { @@ -132,6 +150,28 @@ static inline u32 cra_readl(struct altera_pcie *pcie, const u32 reg) return readl_relaxed(pcie->cra_base + reg); } +static inline void cra_writew(struct altera_pcie *pcie, const u32 value, + const u32 reg) +{ + writew_relaxed(value, pcie->cra_base + reg); +} + +static inline u32 cra_readw(struct altera_pcie *pcie, const u32 reg) +{ + return readw_relaxed(pcie->cra_base + reg); +} + +static inline void cra_writeb(struct altera_pcie *pcie, const u32 value, + const u32 reg) +{ + writeb_relaxed(value, pcie->cra_base + reg); +} + +static inline u32 cra_readb(struct altera_pcie *pcie, const u32 reg) +{ + return readb_relaxed(pcie->cra_base + reg); +} + static bool altera_pcie_link_up(struct altera_pcie *pcie) { return !!((cra_readl(pcie, RP_LTSSM) & RP_LTSSM_MASK) == LTSSM_L0); @@ -146,6 +186,15 @@ static bool s10_altera_pcie_link_up(struct altera_pcie *pcie) return !!(readw(addr) & PCI_EXP_LNKSTA_DLLLA); } +static bool aglx_altera_pcie_link_up(struct altera_pcie *pcie) +{ + void __iomem *addr = AGLX_RP_CFG_ADDR(pcie, + pcie->pcie_data->cap_offset + + PCI_EXP_LNKSTA); + + return !!(readw(addr) & PCI_EXP_LNKSTA_DLLLA); +} + /* * Altera PCIe port uses BAR0 of RC's configuration space as the translation * from PCI bus to native BUS. Entire DDR region is mapped into PCIe space @@ -426,6 +475,103 @@ static int s10_rp_write_cfg(struct altera_pcie *pcie, u8 busno, return PCIBIOS_SUCCESSFUL; } +static int aglx_rp_read_cfg(struct altera_pcie *pcie, int where, + int size, u32 *value) +{ + void __iomem *addr = AGLX_RP_CFG_ADDR(pcie, where); + + switch (size) { + case 1: + *value = readb(addr); + break; + case 2: + *value = readw(addr); + break; + default: + *value = readl(addr); + break; + } + + /* interrupt pin not programmed in hardware, set to INTA */ + if (where == PCI_INTERRUPT_PIN && size == 1 && !(*value)) + *value = 0x01; + else if (where == PCI_INTERRUPT_LINE && !(*value & 0xff00)) + *value |= 0x0100; + + return PCIBIOS_SUCCESSFUL; +} + +static int aglx_rp_write_cfg(struct altera_pcie *pcie, u8 busno, + int where, int size, u32 value) +{ + void __iomem *addr = AGLX_RP_CFG_ADDR(pcie, where); + + switch (size) { + case 1: + writeb(value, addr); + break; + case 2: + writew(value, addr); + break; + default: + writel(value, addr); + break; + } + + /* + * Monitor changes to PCI_PRIMARY_BUS register on root port + * and update local copy of root bus number accordingly. + */ + if (busno == pcie->root_bus_nr && where == PCI_PRIMARY_BUS) + pcie->root_bus_nr = value & 0xff; + + return PCIBIOS_SUCCESSFUL; +} + +static int aglx_ep_write_cfg(struct altera_pcie *pcie, u8 busno, + unsigned int devfn, int where, int size, u32 value) +{ + cra_writel(pcie, ((busno << 8) | devfn), AGLX_BDF_REG); + if (busno > AGLX_RP_SECONDARY(pcie)) + where |= (1 << 12); /* type 1 */ + + switch (size) { + case 1: + cra_writeb(pcie, value, where); + break; + case 2: + cra_writew(pcie, value, where); + break; + default: + cra_writel(pcie, value, where); + break; + } + + return PCIBIOS_SUCCESSFUL; +} + +static int aglx_ep_read_cfg(struct altera_pcie *pcie, u8 busno, + unsigned int devfn, int where, int size, u32 *value) +{ + cra_writel(pcie, ((busno << 8) | devfn), AGLX_BDF_REG); + if (busno > AGLX_RP_SECONDARY(pcie)) + where |= (1 << 12); /* type 1 */ + + switch (size) { + case 1: + *value = cra_readb(pcie, where); + break; + case 2: + *value = cra_readw(pcie, where); + break; + default: + *value = cra_readl(pcie, where); + break; + } + + return PCIBIOS_SUCCESSFUL; +} + static int _altera_pcie_cfg_read(struct altera_pcie *pcie, u8 busno, unsigned int devfn, int where, int size, u32 *value) @@ -438,6 +584,10 @@ static int _altera_pcie_cfg_read(struct altera_pcie *pcie, u8 busno, return pcie->pcie_data->ops->rp_read_cfg(pcie, where, size, value); + if (pcie->pcie_data->ops->ep_read_cfg) + return pcie->pcie_data->ops->ep_read_cfg(pcie, busno, devfn, + where, size, value); + switch (size) { case 1: byte_en = 1 << (where & 3); @@ -482,6 +632,10 @@ static int _altera_pcie_cfg_write(struct altera_pcie *pcie, u8 busno, return pcie->pcie_data->ops->rp_write_cfg(pcie, busno, where, size, value); + if (pcie->pcie_data->ops->ep_write_cfg) + return pcie->pcie_data->ops->ep_write_cfg(pcie, busno, devfn, + where, size, value); + switch (size) { case 1: data32 = (value & 0xff) << shift; @@ -660,7 +814,30 @@ static void altera_pcie_isr(struct irq_desc *desc) dev_err_ratelimited(dev, "unexpected IRQ, INT%d\n", bit); } } + chained_irq_exit(chip, desc); +} + +static void aglx_isr(struct irq_desc *desc) +{ + struct irq_chip *chip = irq_desc_get_chip(desc); + struct altera_pcie *pcie; + struct device *dev; + u32 status; + int ret; + + chained_irq_enter(chip, desc); + pcie = irq_desc_get_handler_data(desc); + dev = &pcie->pdev->dev; + status = readl(pcie->hip_base + pcie->pcie_data->port_conf_offset + + pcie->pcie_data->port_irq_status_offset); + if (status & CFG_AER) { + ret = generic_handle_domain_irq(pcie->irq_domain, 0); + if (ret) + dev_err_ratelimited(dev, "unexpected IRQ\n"); + } + writel(CFG_AER, (pcie->hip_base + pcie->pcie_data->port_conf_offset + + pcie->pcie_data->port_irq_status_offset)); chained_irq_exit(chip, desc); } @@ -695,9 +872,9 @@ static int altera_pcie_parse_dt(struct altera_pcie *pcie) if (IS_ERR(pcie->cra_base)) return PTR_ERR(pcie->cra_base); - if (pcie->pcie_data->version == ALTERA_PCIE_V2) { - pcie->hip_base = - devm_platform_ioremap_resource_byname(pdev, "Hip"); + if (pcie->pcie_data->version == ALTERA_PCIE_V2 || + pcie->pcie_data->version == ALTERA_PCIE_V3) { + pcie->hip_base = devm_platform_ioremap_resource_byname(pdev, "Hip"); if (IS_ERR(pcie->hip_base)) return PTR_ERR(pcie->hip_base); } @@ -707,7 +884,7 @@ static int altera_pcie_parse_dt(struct altera_pcie *pcie) if (pcie->irq < 0) return pcie->irq; - irq_set_chained_handler_and_data(pcie->irq, altera_pcie_isr, pcie); + irq_set_chained_handler_and_data(pcie->irq, pcie->pcie_data->ops->rp_isr, pcie); return 0; } @@ -720,6 +897,7 @@ static const struct altera_pcie_ops altera_pcie_ops_1_0 = { .tlp_read_pkt = tlp_read_packet, .tlp_write_pkt = tlp_write_packet, .get_link_status = altera_pcie_link_up, + .rp_isr = altera_pcie_isr, }; static const struct altera_pcie_ops altera_pcie_ops_2_0 = { @@ -728,6 +906,16 @@ static const struct altera_pcie_ops altera_pcie_ops_2_0 = { .get_link_status = s10_altera_pcie_link_up, .rp_read_cfg = s10_rp_read_cfg, .rp_write_cfg = s10_rp_write_cfg, + .rp_isr = altera_pcie_isr, +}; + +static const struct altera_pcie_ops altera_pcie_ops_3_0 = { + .rp_read_cfg = aglx_rp_read_cfg, + .rp_write_cfg = aglx_rp_write_cfg, + .get_link_status = aglx_altera_pcie_link_up, + .ep_read_cfg = aglx_ep_read_cfg, + .ep_write_cfg = aglx_ep_write_cfg, + .rp_isr = aglx_isr, }; static const struct altera_pcie_data altera_pcie_1_0_data = { @@ -750,11 +938,44 @@ static const struct altera_pcie_data altera_pcie_2_0_data = { .cfgwr1 = S10_TLP_FMTTYPE_CFGWR1, }; +static const struct altera_pcie_data altera_pcie_3_0_f_tile_data = { + .ops = &altera_pcie_ops_3_0, + .version = ALTERA_PCIE_V3, + .cap_offset = 0x70, + .port_conf_offset = 0x14000, + .port_irq_status_offset = AGLX_ROOT_PORT_IRQ_STATUS, + .port_irq_enable_offset = AGLX_ROOT_PORT_IRQ_ENABLE, +}; + +static const struct altera_pcie_data altera_pcie_3_0_p_tile_data = { + .ops = &altera_pcie_ops_3_0, + .version = ALTERA_PCIE_V3, + .cap_offset = 0x70, + .port_conf_offset = 0x104000, + .port_irq_status_offset = AGLX_ROOT_PORT_IRQ_STATUS, + .port_irq_enable_offset = AGLX_ROOT_PORT_IRQ_ENABLE, +}; + +static const struct altera_pcie_data altera_pcie_3_0_r_tile_data = { + .ops = &altera_pcie_ops_3_0, + .version = ALTERA_PCIE_V3, + .cap_offset = 0x70, + .port_conf_offset = 0x1300, + .port_irq_status_offset = 0x0, + .port_irq_enable_offset = 0x4, +}; + static const struct of_device_id altera_pcie_of_match[] = { {.compatible = "altr,pcie-root-port-1.0", .data = &altera_pcie_1_0_data }, {.compatible = "altr,pcie-root-port-2.0", .data = &altera_pcie_2_0_data }, + {.compatible = "altr,pcie-root-port-3.0-f-tile", + .data = &altera_pcie_3_0_f_tile_data }, + {.compatible = "altr,pcie-root-port-3.0-p-tile", + .data = &altera_pcie_3_0_p_tile_data }, + {.compatible = "altr,pcie-root-port-3.0-r-tile", + .data = &altera_pcie_3_0_r_tile_data }, {}, }; @@ -792,11 +1013,18 @@ static int altera_pcie_probe(struct platform_device *pdev) return ret; } - /* clear all interrupts */ - cra_writel(pcie, P2A_INT_STS_ALL, P2A_INT_STATUS); - /* enable all interrupts */ - cra_writel(pcie, P2A_INT_ENA_ALL, P2A_INT_ENABLE); - altera_pcie_host_init(pcie); + if (pcie->pcie_data->version == ALTERA_PCIE_V1 || + pcie->pcie_data->version == ALTERA_PCIE_V2) { + /* clear all interrupts */ + cra_writel(pcie, P2A_INT_STS_ALL, P2A_INT_STATUS); + /* enable all interrupts */ + cra_writel(pcie, P2A_INT_ENA_ALL, P2A_INT_ENABLE); + altera_pcie_host_init(pcie); + } else if (pcie->pcie_data->version == ALTERA_PCIE_V3) { + writel(CFG_AER, + pcie->hip_base + pcie->pcie_data->port_conf_offset + + pcie->pcie_data->port_irq_enable_offset); + } bridge->sysdata = pcie; bridge->busnr = pcie->root_bus_nr;