PCI: designware: Add driver for prototyping kits based on ARC SDP

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

diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index 5b0853df9d5a4c0da73e8bdf07e115d08fd8b28b..64f2fff121288cb0560a6186b6cddce6ecc33978 100644 (file)
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -28,3 +28,20 @@ Optional properties:
 - clock-names: Must include the following entries:
        - "pcie"
        - "pcie_bus"
+
+Example configuration:
+
+       pcie: pcie@0xdffff000 {
+               compatible = "snps,dw-pcie";
+               reg = <0xdffff000 0x1000>, /* Controller registers */
+                     <0xd0000000 0x2000>; /* PCI config space */
+               reg-names = "ctrlreg", "config";
+               #address-cells = <3>;
+               #size-cells = <2>;
+               device_type = "pci";
+               ranges = <0x81000000 0 0x00000000 0xde000000 0 0x00010000
+                         0x82000000 0 0xd0400000 0xd0400000 0 0x0d000000>;
+               interrupts = <25>, <24>;
+               #interrupt-cells = <1>;
+               num-lanes = <1>;
+       };