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Message-ID: <20230417103226.334588-2-thippeswamy.havalige@amd.com>
Date:   Mon, 17 Apr 2023 16:02:25 +0530
From:   Thippeswamy Havalige <thippeswamy.havalige@....com>
To:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <krzysztof.kozlowski@...aro.org>
CC:     <bhelgaas@...gle.com>, <michals@...inx.com>, <robh+dt@...nel.org>,
        <nagaradhesh.yeleswarapu@....com>, <bharat.kumar.gogada@....com>,
        <lorenzo.pieralisi@....com>,
        Thippeswamy Havalige <thippeswamy.havalige@....com>
Subject: [PATCH 1/2] dt-bindings: PCI: xilinx-xdma: Add YAML schemas for Xilinx XDMA PCIe Root Port Bridge

Add YAML dtschemas of Xilinx XDMA Soft IP PCIe Root Port Bridge
dt binding.

Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@....com>
Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@....com>
---
 .../bindings/pci/xlnx,xdma-host.yaml          | 117 ++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml

diff --git a/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml b/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml
new file mode 100644
index 000000000000..e3a1ef1a47d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/xlnx,xdma-host.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx XDMA PL PCIe Root Port Bridge
+
+maintainers:
+  - Thippeswamy Havalige <thippeswamy.havalige@....com>
+
+allOf:
+  - $ref: /schemas/pci/pci-bus.yaml#
+
+properties:
+  compatible:
+    const: xlnx,xdma-host-3.0
+
+  reg:
+    maxItems: 1
+
+  ranges:
+    items:
+      - description: |
+          ranges for the PCI memory regions (I/O space region is not
+          supported by hardware)
+
+  interrupts:
+    items:
+      - description: interrupt asserted when miscellaneous interrupt is received.
+      - description: msi0 interrupt asserted when an MSI is received.
+      - description: msi1 interrupt asserted when an MSI is received.
+
+  interrupt-names:
+    items:
+      - const: misc
+      - const: msi0
+      - const: msi1
+
+  interrupt-map-mask:
+    items:
+      - const: 0
+      - const: 0
+      - const: 0
+      - const: 7
+
+  interrupt-map:
+    maxItems: 4
+
+  "#interrupt-cells":
+    const: 1
+
+  interrupt-controller:
+    description: identifies the node as an interrupt controller
+    type: object
+    properties:
+      interrupt-controller: true
+
+      "#address-cells":
+        const: 0
+
+      "#interrupt-cells":
+        const: 1
+
+    required:
+      - interrupt-controller
+      - "#address-cells"
+      - "#interrupt-cells"
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - ranges
+  - interrupts
+  - interrupt-map
+  - interrupt-map-mask
+  - "#interrupt-cells"
+  - interrupt-controller
+
+unevaluatedProperties: false
+
+examples:
+
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        pcie@...00000 {
+            compatible = "xlnx,xdma-host-3.00";
+            reg = <0x0 0xa0000000 0x0 0x10000000>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            #interrupt-cells = <1>;
+            device_type = "pci";
+            interrupt-parent = <&gic>;
+            interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "misc", "msi0", "msi1";
+            interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+            interrupt-map = <0 0 0 1 &pcie_intc_0 0>,
+                            <0 0 0 2 &pcie_intc_0 1>,
+                            <0 0 0 3 &pcie_intc_0 2>,
+                            <0 0 0 4 &pcie_intc_0 3>;
+            ranges = <0x2000000 0x0 0xb0000000 0x0 0xb0000000 0x0 0x1000000>,
+                     <0x43000000 0x5 0x0 0x5 0x0 0x0 0x1000000>;
+            pcie_intc_0: interrupt-controller {
+                #address-cells = <2>;
+                #interrupt-cells = <1>;
+                interrupt-controller ;
+            };
+        };
+    };
-- 
2.25.1

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