1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C
2 # Copyright 2021 Linaro Ltd.
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/net/intel,i
6 $schema: http://devicetree.org/meta-schemas/co
7
8 title: Intel IXP4xx V.35 WAN High Speed Serial
9
10 maintainers:
11 - Linus Walleij <linus.walleij@linaro.org>
12
13 description: |
14 The Intel IXP4xx HSS makes use of the IXP4xx
15 Processing Engine) and the IXP4xx Queue Mana
16 V.35 Wideband Modem (WAN) links.
17
18 properties:
19 compatible:
20 const: intel,ixp4xx-hss
21
22 reg:
23 maxItems: 1
24 description: The HSS instance
25
26 intel,npe-handle:
27 $ref: /schemas/types.yaml#/definitions/pha
28 items:
29 items:
30 - description: phandle to the NPE this
31 - description: the NPE instance number
32 description: phandle to the NPE this HSS i
33 and the instance to use in the second ce
34
35 intel,queue-chl-rxtrig:
36 $ref: /schemas/types.yaml#/definitions/pha
37 items:
38 - items:
39 - description: phandle to the RX tri
40 - description: the queue instance nu
41 description: phandle to the RX trigger que
42
43 intel,queue-chl-txready:
44 $ref: /schemas/types.yaml#/definitions/pha
45 items:
46 - items:
47 - description: phandle to the TX rea
48 - description: the queue instance nu
49 description: phandle to the TX ready queue
50
51 intel,queue-pkt-rx:
52 $ref: /schemas/types.yaml#/definitions/pha
53 items:
54 - items:
55 - description: phandle to the RX que
56 - description: the queue instance nu
57 description: phandle to the packet RX queu
58
59 intel,queue-pkt-tx:
60 $ref: /schemas/types.yaml#/definitions/pha
61 maxItems: 4
62 items:
63 items:
64 - description: phandle to the TX queue
65 - description: the queue instance numb
66 description: phandle to the packet TX0, TX
67
68 intel,queue-pkt-rxfree:
69 $ref: /schemas/types.yaml#/definitions/pha
70 maxItems: 4
71 items:
72 items:
73 - description: phandle to the RXFREE q
74 - description: the queue instance numb
75 description: phandle to the packet RXFREE0
76 RXFREE3 queues on the NPE
77
78 intel,queue-pkt-txdone:
79 $ref: /schemas/types.yaml#/definitions/pha
80 items:
81 - items:
82 - description: phandle to the TXDONE
83 - description: the queue instance nu
84 description: phandle to the packet TXDONE
85
86 cts-gpios:
87 maxItems: 1
88 description: Clear To Send (CTS) GPIO line
89
90 rts-gpios:
91 maxItems: 1
92 description: Ready To Send (RTS) GPIO line
93
94 dcd-gpios:
95 maxItems: 1
96 description: Data Carrier Detect (DCD) GPI
97
98 dtr-gpios:
99 maxItems: 1
100 description: Data Terminal Ready (DTR) GPI
101
102 clk-internal-gpios:
103 maxItems: 1
104 description: Clock internal GPIO line, dri
105 use internal clocking as opposed to exte
106
107 required:
108 - compatible
109 - reg
110 - intel,npe-handle
111 - intel,queue-chl-rxtrig
112 - intel,queue-chl-txready
113 - intel,queue-pkt-rx
114 - intel,queue-pkt-tx
115 - intel,queue-pkt-rxfree
116 - intel,queue-pkt-txdone
117 - cts-gpios
118 - rts-gpios
119 - dcd-gpios
120 - dtr-gpios
121 - clk-internal-gpios
122
123 additionalProperties: false
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