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-rw-r--r--Documentation/devicetree/bindings/pci/hisilicon-pcie.txt37
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
index 59c2f47aa303..b7fa3b97986d 100644
--- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -42,3 +42,40 @@ Hip05 Example (note that Hip06 is the same except compatible):
0x0 0 0 4 &mbigen_pcie 4 13>;
status = "ok";
};
+
+HiSilicon Hip06/Hip07 PCIe host bridge DT (almost-ECAM) description.
+The properties and their meanings are identical to those described in
+host-generic-pci.txt except as listed below.
+
+Properties of the host controller node that differ from
+host-generic-pci.txt:
+
+- compatible : Must be "hisilicon,pcie-almost-ecam"
+
+- reg : Two entries: First the ECAM configuration space for any
+ other bus underneath the root bus. Second, the base
+ and size of the HiSilicon host bridge registers include
+ the RC's own config space.
+
+Example:
+ pcie0: pcie@a0090000 {
+ compatible = "hisilicon,pcie-almost-ecam";
+ reg = <0 0xb0000000 0 0x2000000>, /* ECAM configuration space */
+ <0 0xa0090000 0 0x10000>; /* host bridge registers */
+ bus-range = <0 31>;
+ msi-map = <0x0000 &its_dsa 0x0000 0x2000>;
+ msi-map-mask = <0xffff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ dma-coherent;
+ ranges = <0x02000000 0 0xb2000000 0x0 0xb2000000 0 0x5ff0000
+ 0x01000000 0 0 0 0xb7ff0000 0 0x10000>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map = <0x0 0 0 1 &mbigen_pcie0 650 4
+ 0x0 0 0 2 &mbigen_pcie0 650 4
+ 0x0 0 0 3 &mbigen_pcie0 650 4
+ 0x0 0 0 4 &mbigen_pcie0 650 4>;
+ status = "ok";
+ };