1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/phy/microchip,sparx5-serdes.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Microchip Sparx5 Serdes controller
8
9 maintainers:
10 - Steen Hegelund <steen.hegelund@microchip.com>
11
12 description: |
13 The Sparx5 SERDES interfaces share the same basic functionality, but
14 support different operating modes and line rates.
15
16 The following list lists the SERDES features:
17
18 * RX Adaptive Decision Feedback Equalizer (DFE)
19 * Programmable continuous time linear equalizer (CTLE)
20 * Rx variable gain control
21 * Rx built-in fault detector (loss-of-lock/loss-of-signal)
22 * Adjustable tx de-emphasis (FFE)
23 * Tx output amplitude control
24 * Supports rx eye monitor
25 * Multiple loopback modes
26 * Prbs generator and checker
27 * Polarity inversion control
28
29 SERDES6G:
30
31 The SERDES6G is a high-speed SERDES interface, which can operate at
32 the following data rates:
33
34 * 100 Mbps (100BASE-FX)
35 * 1.25 Gbps (SGMII/1000BASE-X/1000BASE-KX)
36 * 3.125 Gbps (2.5GBASE-X/2.5GBASE-KX)
37 * 5.15625 Gbps (5GBASE-KR/5G-USXGMII)
38
39 SERDES10G
40
41 The SERDES10G is a high-speed SERDES interface, which can operate at
42 the following data rates:
43
44 * 100 Mbps (100BASE-FX)
45 * 1.25 Gbps (SGMII/1000BASE-X/1000BASE-KX)
46 * 3.125 Gbps (2.5GBASE-X/2.5GBASE-KX)
47 * 5 Gbps (QSGMII/USGMII)
48 * 5.15625 Gbps (5GBASE-KR/5G-USXGMII)
49 * 10 Gbps (10G-USGMII)
50 * 10.3125 Gbps (10GBASE-R/10GBASE-KR/USXGMII)
51
52 SERDES25G
53
54 The SERDES25G is a high-speed SERDES interface, which can operate at
55 the following data rates:
56
57 * 1.25 Gbps (SGMII/1000BASE-X/1000BASE-KX)
58 * 3.125 Gbps (2.5GBASE-X/2.5GBASE-KX)
59 * 5 Gbps (QSGMII/USGMII)
60 * 5.15625 Gbps (5GBASE-KR/5G-USXGMII)
61 * 10 Gbps (10G-USGMII)
62 * 10.3125 Gbps (10GBASE-R/10GBASE-KR/USXGMII)
63 * 25.78125 Gbps (25GBASE-KR/25GBASE-CR/25GBASE-SR/25GBASE-LR/25GBASE-ER)
64
65 properties:
66 $nodename:
67 pattern: "^serdes@[0-9a-f]+$"
68
69 compatible:
70 const: microchip,sparx5-serdes
71
72 reg:
73 minItems: 1
74
75 '#phy-cells':
76 const: 1
77 description: |
78 - The main serdes input port
79
80 clocks:
81 maxItems: 1
82
83 required:
84 - compatible
85 - reg
86 - '#phy-cells'
87 - clocks
88
89 additionalProperties: false
90
91 examples:
92 - |
93 serdes: serdes@10808000 {
94 compatible = "microchip,sparx5-serdes";
95 #phy-cells = <1>;
96 clocks = <&sys_clk>;
97 reg = <0x10808000 0x5d0000>;
98 };
99
100 ...
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