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-* Synopsis Designware PCIe interface
-
-Required properties:
-- compatible: should contain "snps,dw-pcie" to identify the
- core, plus an identifier for the specific instance, such
- as "samsung,exynos5440-pcie".
-- reg: base addresses and lengths of the pcie controller,
- the phy controller, additional register for the phy controller.
-- interrupts: interrupt values for level interrupt,
- pulse interrupt, special interrupt.
-- clocks: from common clock binding: handle to pci clock.
-- clock-names: from common clock binding: should be "pcie" and "pcie_bus".
-- #address-cells: set to <3>
-- #size-cells: set to <2>
-- device_type: set to "pci"
-- ranges: ranges for the PCI memory and I/O regions
-- #interrupt-cells: set to <1>
-- interrupt-map-mask and interrupt-map: standard PCI properties
- to define the mapping of the PCIe interface to interrupt
- numbers.
-- reset-gpio: gpio pin number of power good signal
-
-Example:
-
-SoC specific DT Entry:
-
- pcie@290000 {
- compatible = "samsung,exynos5440-pcie", "snps,dw-pcie";
- reg = <0x290000 0x1000
- 0x270000 0x1000
- 0x271000 0x40>;
- interrupts = <0 20 0>, <0 21 0>, <0 22 0>;
- clocks = <&clock 28>, <&clock 27>;
- clock-names = "pcie", "pcie_bus";
- #address-cells = <3>;
- #size-cells = <2>;
- device_type = "pci";
- ranges = <0x00000800 0 0x40000000 0x40000000 0 0x00001000 /* configuration space */
- 0x81000000 0 0 0x40001000 0 0x00010000 /* downstream I/O */
- 0x82000000 0 0x40011000 0x40011000 0 0x1ffef000>; /* non-prefetchable memory */
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0x0 0 &gic 53>;
- };
-
- pcie@2a0000 {
- compatible = "samsung,exynos5440-pcie", "snps,dw-pcie";
- reg = <0x2a0000 0x1000
- 0x272000 0x1000
- 0x271040 0x40>;
- interrupts = <0 23 0>, <0 24 0>, <0 25 0>;
- clocks = <&clock 29>, <&clock 27>;
- clock-names = "pcie", "pcie_bus";
- #address-cells = <3>;
- #size-cells = <2>;
- device_type = "pci";
- ranges = <0x00000800 0 0x60000000 0x60000000 0 0x00001000 /* configuration space */
- 0x81000000 0 0 0x60001000 0 0x00010000 /* downstream I/O */
- 0x82000000 0 0x60011000 0x60011000 0 0x1ffef000>; /* non-prefetchable memory */
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0x0 0 &gic 56>;
- };
-
-Board specific DT Entry:
-
- pcie@290000 {
- reset-gpio = <&pin_ctrl 5 0>;
- };
-
- pcie@2a0000 {
- reset-gpio = <&pin_ctrl 22 0>;
- };