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Fri, 31 Jul 2015 03:14:10 -0700 Received: from leyfoon-vm (pg-lftan-l.altera.com [137.57.103.123]) by sj-mail01.altera.com (8.13.7+Sun/8.13.7) with SMTP id t6VAFRtP004508; Fri, 31 Jul 2015 03:15:27 -0700 (PDT) Received: by leyfoon-vm (sSMTP sendmail emulation); Fri, 31 Jul 2015 18:15:38 +0800 From: Ley Foon Tan To: Bjorn Helgaas , Russell King , Arnd Bergmann , Dinh Nguyen CC: , , , , , Ley Foon Tan , , Rob Herring Subject: [PATCH v2 4/5] Documentation: dt-bindings: pci: altera pcie device tree binding Date: Fri, 31 Jul 2015 18:15:14 +0800 Message-ID: <1438337715-22594-5-git-send-email-lftan@altera.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1438337715-22594-1-git-send-email-lftan@altera.com> References: <1438337715-22594-1-git-send-email-lftan@altera.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-Microsoft-Exchange-Diagnostics: 1; BN1AFFO11FD045; 1:LAsaQRGUrYt+reAioVf0nXbrhNhh9uPfTCD4pIk3+xuZASbogfAL2g4EHefLJ7zHZzwpFXyJCW4WZlZk8bLAU1W1Hoc7+hxuFcGS+JlzR872AhDF19epOARzt3Vx2zLUl3UWsX/ihiwh9udkizxY6On+XgpEGgYeRvhuwLEXoKN9iJPCQEslsnWISQWgwtHC4DkPg8S6wWxcGLhNvZ0vZTx4eHceLggnXyN83giVh81rTmNrdG2VBx8nOYIoi/quZSPxsxnSNfP6Cy05KZVCm6K7tJ9jNCsuMcqAQy7lt8dkm4MhrmGYDRn9ieLuXVsU X-Forefront-Antispam-Report: CIP:66.35.236.227; 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Signed-off-by: Ley Foon Tan --- .../devicetree/bindings/pci/altera-pcie-msi.txt | 27 ++++++++++++ .../devicetree/bindings/pci/altera-pcie.txt | 49 ++++++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/altera-pcie-msi.txt create mode 100644 Documentation/devicetree/bindings/pci/altera-pcie.txt diff --git a/Documentation/devicetree/bindings/pci/altera-pcie-msi.txt b/Documentation/devicetree/bindings/pci/altera-pcie-msi.txt new file mode 100644 index 0000000..7f330c9 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/altera-pcie-msi.txt @@ -0,0 +1,27 @@ +* 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 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 = <1>; + num-vectors = <32>; +}; diff --git a/Documentation/devicetree/bindings/pci/altera-pcie.txt b/Documentation/devicetree/bindings/pci/altera-pcie.txt new file mode 100644 index 0000000..54c45f5 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/altera-pcie.txt @@ -0,0 +1,49 @@ +* Altera PCIe controller + +Required properties: +- compatible : should contain "altr,pcie-root-port-1.0" +- reg: A list of physical base address and length for TXS and CRA. +- reg-names: Must include the following entries: + "Txs": TXS region + "Cra": Control register access region +-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@0xc00000000 { + 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 0xc0000000 0xc0000000 0x00000000 0x10000000 + 0x82000000 0x00000000 0xd0000000 0xd0000000 0x00000000 0x10000000>; + };