1 * Freescale i.MX6 PCIe interface
3 This PCIe host controller is based on the Synopsys DesignWare PCIe IP
4 and thus inherits all the common properties defined in designware-pcie.txt.
12 - reg: base address and length of the PCIe controller
13 - interrupts: A list of interrupt outputs of the controller. Must contain an
14 entry for each entry in the interrupt-names property.
15 - interrupt-names: Must include the following entries:
16 - "msi": The interrupt that is asserted when an MSI is received
17 - clock-names: Must include the following additional entries:
21 - fsl,tx-deemph-gen1: Gen1 De-emphasis value. Default: 0
22 - fsl,tx-deemph-gen2-3p5db: Gen2 (3.5db) De-emphasis value. Default: 0
23 - fsl,tx-deemph-gen2-6db: Gen2 (6db) De-emphasis value. Default: 20
24 - fsl,tx-swing-full: Gen2 TX SWING FULL value. Default: 127
25 - fsl,tx-swing-low: TX launch amplitude swing_low value. Default: 127
26 - fsl,max-link-speed: Specify PCI gen for link capability. Must be '2' for
27 gen2, otherwise will default to gen1. Note that the IMX6 LVDS clock outputs
28 do not meet gen2 jitter requirements and thus for gen2 capability a gen2
29 compliant clock generator should be used and configured.
30 - reset-gpio: Should specify the GPIO for controlling the PCI bus device reset
31 signal. It's not polarity aware and defaults to active-low reset sequence
32 (L=reset state, H=operation state).
33 - reset-gpio-active-high: If present then the reset sequence using the GPIO
34 specified in the "reset-gpio" property is reversed (H=reset state,
36 - vpcie-supply: Should specify the regulator in charge of PCIe port power.
37 The regulator will be enabled when initializing the PCIe host and
38 disabled either as part of the init process or when shutting down the
41 Additional required properties for imx6sx-pcie:
42 - clock names: Must include the following additional entries:
45 Additional required properties for imx7d-pcie:
46 - power-domains: Must be set to a phandle pointing to PCIE_PHY power domain
47 - resets: Must contain phandles to PCIe-related reset lines exposed by SRC
49 - reset-names: Must contain the following entires:
56 compatible = "fsl,imx6q-pcie", "snps,dw-pcie";
57 reg = <0x01ffc000 0x04000>,
59 reg-names = "dbi", "config";
63 ranges = <0x00000800 0 0x01f00000 0x01f00000 0 0x00080000
64 0x81000000 0 0 0x01f80000 0 0x00010000
65 0x82000000 0 0x01000000 0x01000000 0 0x00f00000>;
67 interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
68 interrupt-names = "msi";
69 #interrupt-cells = <1>;
70 interrupt-map-mask = <0 0 0 0x7>;
71 interrupt-map = <0 0 0 1 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
72 <0 0 0 2 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
73 <0 0 0 3 &intc GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
74 <0 0 0 4 &intc GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
75 clocks = <&clks 144>, <&clks 206>, <&clks 189>;
76 clock-names = "pcie", "pcie_bus", "pcie_phy";