tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/net/qca,qca7000.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm QCA7000
8
9maintainers:
10 - Frank Li <Frank.Li@nxp.com>
11
12description: |
13 The QCA7000 is a serial-to-powerline bridge with a host interface which could
14 be configured either as SPI or UART slave. This configuration is done by
15 the QCA7000 firmware.
16
17 (a) Ethernet over SPI
18
19 In order to use the QCA7000 as SPI device it must be defined as a child of a
20 SPI master in the device tree.
21
22 (b) Ethernet over UART
23
24 In order to use the QCA7000 as UART slave it must be defined as a child of a
25 UART master in the device tree. It is possible to preconfigure the UART
26 settings of the QCA7000 firmware, but it's not possible to change them during
27 runtime
28
29properties:
30 compatible:
31 const: qca,qca7000
32
33 reg:
34 maxItems: 1
35
36 interrupts:
37 maxItems: 1
38
39 qca,legacy-mode:
40 $ref: /schemas/types.yaml#/definitions/flag
41 description:
42 Set the SPI data transfer of the QCA7000 to legacy mode.
43 In this mode the SPI master must toggle the chip select
44 between each data word. In burst mode these gaps aren't
45 necessary, which is faster. This setting depends on how
46 the QCA7000 is setup via GPIO pin strapping. If the
47 property is missing the driver defaults to burst mode.
48
49allOf:
50 - $ref: ethernet-controller.yaml#
51
52 - if:
53 required:
54 - reg
55
56 then:
57 properties:
58 spi-cpha: true
59
60 spi-cpol: true
61
62 spi-max-frequency:
63 default: 8000000
64 maximum: 16000000
65 minimum: 1000000
66
67 allOf:
68 - $ref: /schemas/spi/spi-peripheral-props.yaml#
69
70 else:
71 properties:
72 current-speed:
73 default: 115200
74
75 qca,legacy-mode: false
76
77 allOf:
78 - $ref: /schemas/serial/serial-peripheral-props.yaml#
79
80unevaluatedProperties: false
81
82examples:
83 - |
84 #include <dt-bindings/interrupt-controller/irq.h>
85
86 spi {
87 #address-cells = <1>;
88 #size-cells = <0>;
89
90 ethernet@0 {
91 compatible = "qca,qca7000";
92 reg = <0x0>;
93 interrupt-parent = <&gpio3>;
94 interrupts = <25 IRQ_TYPE_EDGE_RISING>;
95 spi-cpha;
96 spi-cpol;
97 spi-max-frequency = <8000000>;
98 local-mac-address = [ a0 b0 c0 d0 e0 f0 ];
99 };
100 };
101
102 - |
103 serial {
104 ethernet {
105 compatible = "qca,qca7000";
106 local-mac-address = [ a0 b0 c0 d0 e0 f0 ];
107 current-speed = <38400>;
108 };
109 };