tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1* Freescale i.MX6 PCIe interface
2
3This PCIe host controller is based on the Synopsis Designware PCIe IP
4and thus inherits all the common properties defined in designware-pcie.txt.
5
6Required properties:
7- compatible: "fsl,imx6q-pcie"
8- reg: base addresse and length of the pcie controller
9- interrupts: A list of interrupt outputs of the controller. Must contain an
10 entry for each entry in the interrupt-names property.
11- interrupt-names: Must include the following entries:
12 - "msi": The interrupt that is asserted when an MSI is received
13- clock-names: Must include the following additional entries:
14 - "pcie_phy"
15
16Example:
17
18 pcie@0x01000000 {
19 compatible = "fsl,imx6q-pcie", "snps,dw-pcie";
20 reg = <0x01ffc000 0x04000>,
21 <0x01f00000 0x80000>;
22 reg-names = "dbi", "config";
23 #address-cells = <3>;
24 #size-cells = <2>;
25 device_type = "pci";
26 ranges = <0x00000800 0 0x01f00000 0x01f00000 0 0x00080000
27 0x81000000 0 0 0x01f80000 0 0x00010000
28 0x82000000 0 0x01000000 0x01000000 0 0x00f00000>;
29 num-lanes = <1>;
30 interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
31 interrupt-names = "msi";
32 #interrupt-cells = <1>;
33 interrupt-map-mask = <0 0 0 0x7>;
34 interrupt-map = <0 0 0 1 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
35 <0 0 0 2 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
36 <0 0 0 3 &intc GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
37 <0 0 0 4 &intc GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
38 clocks = <&clks 144>, <&clks 206>, <&clks 189>;
39 clock-names = "pcie", "pcie_bus", "pcie_phy";
40 };