linux-kernel - [PATCH v3 1/2] dt-bindings: PCI: xilinx-cpm: Add Versal CPM5 Root Port

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Message-ID: <20220309120025.6721-2-bharat.kumar.gogada@xilinx.com>
Date:   Wed, 9 Mar 2022 17:30:24 +0530
From:   Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
To:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC:     <lorenzo.pieralisi@....com>, <bhelgaas@...gle.com>,
        <michals@...inx.com>, <robh@...nel.org>,
        Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
Subject: [PATCH v3 1/2] dt-bindings: PCI: xilinx-cpm: Add Versal CPM5 Root Port

Xilinx Versal Premium series has CPM5 block which supports Root Port
functioning at Gen5 speed.

Add support for YAML schemas documentation for Versal CPM5 Root Port driver.

Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
---
 .../bindings/pci/xilinx-versal-cpm.yaml       | 47 ++++++++++++++++---
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
index 32f4641085bc..97c7229d7f91 100644
--- a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
+++ b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
@@ -14,17 +14,21 @@ allOf:
 
 properties:
   compatible:
-    const: xlnx,versal-cpm-host-1.00
+    contains:
+      enum:
+        - xlnx,versal-cpm-host-1.00
+        - xlnx,versal-cpm5-host-1.00
 
   reg:
-    items:
-      - description: Configuration space region and bridge registers.
-      - description: CPM system level control and status registers.
+    description: |
+      Should contain cpm_slcr, cfg registers location and length.
+      For xlnx,versal-cpm5-host-1.00, it should also contain cpm_csr.
+    minItems: 2
+    maxItems: 3
 
   reg-names:
-    items:
-      - const: cfg
-      - const: cpm_slcr
+    minItems: 2
+    maxItems: 3
 
   interrupts:
     maxItems: 1
@@ -95,4 +99,33 @@ examples:
                                interrupt-controller;
                        };
                };
+
+              cpm5_pcie: pcie@...d0000 {
+                       compatible = "xlnx,versal-cpm5-host-1.00";
+                       device_type = "pci";
+                       #address-cells = <3>;
+                       #interrupt-cells = <1>;
+                       #size-cells = <2>;
+                       interrupts = <0 72 4>;
+                       interrupt-parent = <&gic>;
+                       interrupt-map-mask = <0 0 0 7>;
+                       interrupt-map = <0 0 0 1 &pcie_intc_1 0>,
+                                       <0 0 0 2 &pcie_intc_1 1>,
+                                       <0 0 0 3 &pcie_intc_1 2>,
+                                       <0 0 0 4 &pcie_intc_1 3>;
+                       bus-range = <0x00 0xff>;
+                       ranges = <0x02000000 0x0 0xe0000000 0x0 0xe0000000 0x0 0x10000000>,
+                                <0x43000000 0x80 0x00000000 0x80 0x00000000 0x0 0x80000000>;
+                       msi-map = <0x0 &its_gic 0x0 0x10000>;
+                       reg = <0x00 0xfcdd0000 0x00 0x1000>,
+                             <0x06 0x00000000 0x00 0x1000000>,
+                             <0x00 0xfce20000 0x00 0x1000000>;
+                       reg-names = "cpm_slcr", "cfg", "cpm_csr";
+
+                       pcie_intc_1: interrupt-controller {
+                               #address-cells = <0>;
+                               #interrupt-cells = <1>;
+                               interrupt-controller;
+                       };
+               };
     };
-- 
2.17.1