Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / pci / designware-pcie.txt

diff --git a/kernel/Documentation/devicetree/bindings/pci/designware-pcie.txt b/kernel/Documentation/devicetree/bindings/pci/designware-pcie.txt
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+* Synopsys Designware PCIe interface
+
+Required properties:
+- compatible: should contain "snps,dw-pcie" to identify the core.
+- reg: Should contain the configuration address space.
+- reg-names: Must be "config" for the PCIe configuration space.
+    (The old way of getting the configuration address space from "ranges"
+    is deprecated and should be avoided.)
+- #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.
+- num-lanes: number of lanes to use
+- clocks: Must contain an entry for each entry in clock-names.
+       See ../clocks/clock-bindings.txt for details.
+- clock-names: Must include the following entries:
+       - "pcie"
+       - "pcie_bus"
+
+Optional properties:
+- reset-gpio: gpio pin number of power good signal
+- bus-range: PCI bus numbers covered (it is recommended for new devicetrees to
+  specify this property, to keep backwards compatibility a range of 0x00-0xff
+  is assumed if not present)