1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/serial/sifi 4 $id: http://devicetree.org/schemas/serial/sifive-serial.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: SiFive asynchronous serial interface (U 7 title: SiFive asynchronous serial interface (UART)
8 8
9 maintainers: 9 maintainers:
10 - Pragnesh Patel <pragnesh.patel@sifive.com> 10 - Pragnesh Patel <pragnesh.patel@sifive.com>
11 - Paul Walmsley <paul.walmsley@sifive.com> 11 - Paul Walmsley <paul.walmsley@sifive.com>
12 - Palmer Dabbelt <palmer@sifive.com> 12 - Palmer Dabbelt <palmer@sifive.com>
13 13
14 allOf: 14 allOf:
15 - $ref: serial.yaml# 15 - $ref: serial.yaml#
16 16
17 properties: 17 properties:
18 compatible: 18 compatible:
19 items: 19 items:
20 - enum: 20 - enum:
21 - sifive,fu540-c000-uart 21 - sifive,fu540-c000-uart
22 - sifive,fu740-c000-uart 22 - sifive,fu740-c000-uart
23 - canaan,k210-uarths 23 - canaan,k210-uarths
24 - const: sifive,uart0 24 - const: sifive,uart0
25 25
26 description: 26 description:
27 Should be something similar to "sifive,< 27 Should be something similar to "sifive,<chip>-uart"
28 for the UART as integrated on a particul 28 for the UART as integrated on a particular chip,
29 and "sifive,uart<version>" for the gener 29 and "sifive,uart<version>" for the general UART IP
30 block programming model. 30 block programming model.
31 31
32 UART HDL that corresponds to the IP bloc 32 UART HDL that corresponds to the IP block version
33 numbers can be found here - 33 numbers can be found here -
34 34
35 https://github.com/sifive/sifive-blocks/ 35 https://github.com/sifive/sifive-blocks/tree/master/src/main/scala/devices/uart
36 36
37 reg: 37 reg:
38 maxItems: 1 38 maxItems: 1
39 39
40 interrupts: 40 interrupts:
41 maxItems: 1 41 maxItems: 1
42 42
43 clocks: 43 clocks:
44 maxItems: 1 44 maxItems: 1
45 45
46 required: 46 required:
47 - compatible 47 - compatible
48 - reg 48 - reg
49 - interrupts 49 - interrupts
50 - clocks 50 - clocks
51 51
52 unevaluatedProperties: false 52 unevaluatedProperties: false
53 53
54 examples: 54 examples:
55 - | 55 - |
56 #include <dt-bindings/clock/sifive-fu540-p 56 #include <dt-bindings/clock/sifive-fu540-prci.h>
57 serial@10010000 { 57 serial@10010000 {
58 compatible = "sifive,fu540-c000-uart", 58 compatible = "sifive,fu540-c000-uart", "sifive,uart0";
59 interrupt-parent = <&plic0>; 59 interrupt-parent = <&plic0>;
60 interrupts = <80>; 60 interrupts = <80>;
61 reg = <0x10010000 0x1000>; 61 reg = <0x10010000 0x1000>;
62 clocks = <&prci FU540_PRCI_CLK_TLCLK>; 62 clocks = <&prci FU540_PRCI_CLK_TLCLK>;
63 }; 63 };
64 64
65 ... 65 ...
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