1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: "http://devicetree.org/schemas/phy/phy-tegra194-p2u.yaml#"
5$schema: "http://devicetree.org/meta-schemas/core.yaml#"
6
7title: NVIDIA Tegra194 P2U binding
8
9maintainers:
10  - Thierry Reding <treding@nvidia.com>
11
12description: >
13  Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High
14  Speed) each interfacing with 12 and 8 P2U instances respectively.
15  A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE
16  interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe
17  lane.
18
19properties:
20  compatible:
21    const: nvidia,tegra194-p2u
22
23  reg:
24    maxItems: 1
25    description: Should be the physical address space and length of respective each P2U instance.
26
27  reg-names:
28    items:
29      - const: ctl
30
31  '#phy-cells':
32    const: 0
33
34additionalProperties: false
35
36examples:
37  - |
38    p2u_hsio_0: phy@3e10000 {
39        compatible = "nvidia,tegra194-p2u";
40        reg = <0x03e10000 0x10000>;
41        reg-names = "ctl";
42
43        #phy-cells = <0>;
44    };
45