linux-kernel - [PATCH V1 XRT Alveo Infrastructure 2/9] Documentation: devicetree: bindings: add xrt group binding

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Message-ID: <20211118210323.1070283-3-lizhi.hou@xilinx.com>
Date:   Thu, 18 Nov 2021 13:03:16 -0800
From:   Lizhi Hou <lizhi.hou@...inx.com>
To:     <linux-kernel@...r.kernel.org>
CC:     Lizhi Hou <lizhi.hou@...inx.com>, <linux-fpga@...r.kernel.org>,
        <maxz@...inx.com>, <sonal.santan@...inx.com>, <yliu@...inx.com>,
        <michal.simek@...inx.com>, <stefanos@...inx.com>,
        <devicetree@...r.kernel.org>, <trix@...hat.com>, <mdf@...nel.org>,
        <robh@...nel.org>, <dwmw2@...radead.org>,
        Max Zhen <max.zhen@...inx.com>
Subject: [PATCH V1 XRT Alveo Infrastructure 2/9] Documentation: devicetree: bindings: add xrt group binding

Create device tree binding document for xrt group device.

Signed-off-by: Sonal Santan <sonal.santan@...inx.com>
Signed-off-by: Max Zhen <max.zhen@...inx.com>
Signed-off-by: Lizhi Hou <lizhi.hou@...inx.com>
---
 .../bindings/xrt/xlnx,xrt-group.yaml          | 59 +++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml

diff --git a/Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml b/Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml
new file mode 100644
index 000000000000..112c493eb2d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/xrt/xlnx,xrt-group.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx XRT group for Alveo platforms
+
+description: |
+  The xrt group is a pseudo device which is used to manage and
+  support xrt devices in the same Alveo partition. It is part
+  of XRT infrastructure.
+
+maintainers:
+  - Lizhi Hou <lizhi.hou@...inx.com>
+
+properties:
+  compatible:
+    const: xlnx,xrt-group
+
+  "#address-cells":
+     const: 3
+
+  "#size-cells":
+     const: 2
+
+  ranges: true
+
+patternProperties:
+  "^.*@[0-5],[0-9a-f]+,[0-9a-f]+$":
+    description: xrt devices belongs to this group
+    type: object
+
+required:
+  - compatible
+  - "#address-cells"
+  - "#size-cells"
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    xrt-bus {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        xrt-group@48,0 {
+            compatible = "xlnx,xrt-group";
+            #address-cells = <3>;
+            #size-cells = <2>;
+            ranges = <0 0 0 0 0xe0000000 0 0x2000000
+                      2 0 0 0 0xe4200000 0 0x40000>;
+            ep_fpga_configuration_00@0,0,1e88000 {
+                reg = <0 0 0x1e88000 0 0x8000>;
+                compatible = "xilinx.com,reg_abs-axi_hwicap-1.0",
+                             "axi_hwicap";
+            };
+        };
+    };
-- 
2.27.0