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Hou" To: "linux-pci@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "bhelgaas@google.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "l.subrahmanya@mobiveil.co.in" , "shawnguo@kernel.org" , Leo Li , "lorenzo.pieralisi@arm.com" Subject: [PATCH 21/23] dt-bindings: pci: Add NXP LX SoCs PCIe controller Thread-Topic: [PATCH 21/23] dt-bindings: pci: Add NXP LX SoCs PCIe controller Thread-Index: AQHUddOaH+hnWiOCjEOD1szvFZnE8w== Date: Tue, 6 Nov 2018 13:21:19 +0000 Message-ID: <20181106131807.29951-22-Zhiqiang.Hou@nxp.com> References: <20181106131807.29951-1-Zhiqiang.Hou@nxp.com> In-Reply-To: <20181106131807.29951-1-Zhiqiang.Hou@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK0PR03CA0008.apcprd03.prod.outlook.com (2603:1096:203:2e::20) To DB5PR04MB1221.eurprd04.prod.outlook.com (2a01:111:e400:51c2::27) authentication-results: spf=none (sender IP is ) smtp.mailfrom=zhiqiang.hou@nxp.com; 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Lian" , "Z.q. Hou" , Xiaowei Bao , Mingkai Hu Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hou Zhiqiang Add PCIe controller DT bindings of NXP LX series SoCs. Signed-off-by: Hou Zhiqiang --- .../devicetree/bindings/pci/lx-pci.txt | 52 +++++++++++++++++++ MAINTAINERS | 8 +++ 2 files changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/lx-pci.txt diff --git a/Documentation/devicetree/bindings/pci/lx-pci.txt b/Documentation/devicetree/bindings/pci/lx-pci.txt new file mode 100644 index 000000000000..dc602fef93b0 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/lx-pci.txt @@ -0,0 +1,52 @@ +NXP LX PCIe controller + +This PCIe controller is based on the Mobiveil PCIe IP and thus inherits all +the common properties defined in mobiveil-pcie.txt. + +Required properties: +- compatible: should contain the platform identifier such as: + "fsl,lx2160a-pcie" +- reg: base addresses and lengths of the PCIe controller register blocks. + "config_axi_slave": PCIe controller registers + "csr_axi_slave": Bridge config registers +- interrupts: A list of interrupt outputs of the controller. Must contain an + entry for each entry in the interrupt-names property. +- interrupt-names: It could include the following entries: + "intr": The interrupt that is asserted for controller interrupts + "aer": Asserted for aer interrupt when chip support the aer interrupt with + none MSI/MSI-X/INTx mode,but there is interrupt line for aer. + "pme": Asserted for pme interrupt when chip support the pme interrupt with + none MSI/MSI-X/INTx mode,but there is interrupt line for pme. +- dma-coherent: Indicates that the hardware IP block can ensure the coherency + of the data transferred from/to the IP block. This can avoid the software + cache flush/invalid actions, and improve the performance significantly. +- msi-parent : See the generic MSI binding described in + Documentation/devicetree/bindings/interrupt-controller/msi.txt. + +Example: + + pcie@3400000 { + compatible = "fsl,lx2160a-pcie"; + reg = <0x00 0x03400000 0x0 0x00100000 /* controller registers */ + 0x80 0x00000000 0x0 0x00001000>; /* configuration space */ + reg-names = "csr_axi_slave", "config_axi_slave"; + interrupts = , /* AER interrupt */ + , /* PME interrupt */ + ; /* controller interrupt */ + interrupt-names = "aer", "pme", "intr"; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + apio-wins = <8>; + ppio-wins = <8>; + dma-coherent; + bus-range = <0x0 0xff>; + msi-parent = <&its>; + ranges = <0x82000000 0x0 0x40000000 0x80 0x40000000 0x0 0x40000000>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0000 0 0 1 &gic GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>, + <0000 0 0 2 &gic GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>, + <0000 0 0 3 &gic GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>, + <0000 0 0 4 &gic GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 0c57ccff3188..7da555c8e2f5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11252,6 +11252,14 @@ L: linux-arm-kernel@lists.infradead.org S: Maintained F: drivers/pci/controller/dwc/*layerscape* +PCI DRIVER FOR NXP LX +M: Hou Zhiqiang +L: linux-pci@vger.kernel.org +L: linux-arm-kernel@lists.infradead.org +S: Maintained +F: Documentation/devicetree/bindings/pci/lx-pci.txt +F: drivers/pci/controller/mobibeil/pci-lx.c + PCI DRIVER FOR GENERIC OF HOSTS M: Will Deacon L: linux-pci@vger.kernel.org