[PATCH v3 2/3] dt-bindings: PCI: Add UltraRISC DP1000 PCIe controller

[Jia Wang]

Add UltraRISC DP1000 SoC PCIe controller devicetree bindings.

Signed-off-by: Jia Wang <wangjia@xxxxxxxxxxxxx>
---
 .../bindings/pci/ultrarisc,dp1000-pcie.yaml        | 93 ++++++++++++++++++++++
 MAINTAINERS                                        |  7 ++
 2 files changed, 100 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/ultrarisc,dp1000-pcie.yaml b/Documentation/devicetree/bindings/pci/ultrarisc,dp1000-pcie.yaml
new file mode 100644
index 000000000000..512b935bf5d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/ultrarisc,dp1000-pcie.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/ultrarisc,dp1000-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: UltraRISC DP1000 PCIe Host Controller
+
+description:
+  UltraRISC DP1000 SoC PCIe host controller is based on the DesignWare PCIe IP.
+
+maintainers:
+  - Xincheng Zhang <zhangxincheng@xxxxxxxxxxxxx>
+  - Jia Wang <wangjia@xxxxxxxxxxxxx>
+
+allOf:
+  - $ref: /schemas/pci/snps,dw-pcie.yaml#
+
+properties:
+  compatible:
+    const: ultrarisc,dp1000-pcie
+
+  reg:
+    items:
+      - description: Data Bus Interface (DBI) registers.
+      - description: PCIe configuration space region.
+
+  reg-names:
+    items:
+      - const: dbi
+      - const: config
+
+  num-lanes:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [4, 16]
+    description: Number of lanes to use.
+
+  interrupts:
+    items:
+      - description: MSI interrupt
+      - description: Legacy INTA interrupt
+      - description: Legacy INTB interrupt
+      - description: Legacy INTC interrupt
+      - description: Legacy INTD interrupt
+
+  interrupt-names:
+    items:
+      - const: msi
+      - const: inta
+      - const: intb
+      - const: intc
+      - const: intd
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - interrupt-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      pcie@21000000 {
+        compatible = "ultrarisc,dp1000-pcie";
+        reg = <0x0 0x21000000 0x0 0x01000000>,
+              <0x0 0x4fff0000 0x0 0x00010000>;
+        reg-names = "dbi", "config";
+        ranges = <0x81000000 0x0 0x4fbf0000 0x0 0x4fbf0000 0x0 0x00400000>,
+                 <0x82000000 0x0 0x40000000 0x0 0x40000000 0x0 0x0fbf0000>,
+                 <0xc3000000 0x40 0x00000000 0x40 0x00000000 0xd 0x00000000>;
+        #address-cells = <3>;
+        #size-cells = <2>;
+        #interrupt-cells = <1>;
+        device_type = "pci";
+        dma-coherent;
+        bus-range = <0x0 0xff>;
+        num-lanes = <16>;
+        interrupt-parent = <&plic>;
+        interrupts = <43>, <44>, <45>, <46>, <47>;
+        interrupt-names = "msi", "inta", "intb", "intc", "intd";
+        interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+        interrupt-map = <0x0 0x0 0x0 0x1 &plic 44>,
+                        <0x0 0x0 0x0 0x2 &plic 45>,
+                        <0x0 0x0 0x0 0x3 &plic 46>,
+                        <0x0 0x0 0x0 0x4 &plic 47>;
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index c3fe46d7c4bc..2ec02d8443dd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20582,6 +20582,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/starfive,jh7110-pcie.yaml
 F:	drivers/pci/controller/plda/pcie-starfive.c
 
+PCIE DRIVER FOR ULTRARISC DP1000
+M:	Xincheng Zhang <zhangxincheng@xxxxxxxxxxxxx>
+M:	Jia Wang <wangjia@xxxxxxxxxxxxx>
+L:	linux-pci@xxxxxxxxxxxxxxx
+S:	Maintained
+F:	Documentation/devicetree/bindings/pci/ultrarisc,dp1000-pcie.yaml
+
 PCIE ENDPOINT DRIVER FOR QUALCOMM
 M:	Manivannan Sadhasivam <mani@xxxxxxxxxx>
 L:	linux-pci@xxxxxxxxxxxxxxx

-- 
2.34.1