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: /schemas/serial.yaml#
16 16
17 properties: 17 properties:
18 compatible: 18 compatible:
19 items: 19 items:
20 - enum: !! 20 - const: sifive,fu540-c000-uart
21 - sifive,fu540-c000-uart <<
22 - sifive,fu740-c000-uart <<
23 - canaan,k210-uarths <<
24 - const: sifive,uart0 21 - const: sifive,uart0
25 22
26 description: 23 description:
27 Should be something similar to "sifive,< 24 Should be something similar to "sifive,<chip>-uart"
28 for the UART as integrated on a particul 25 for the UART as integrated on a particular chip,
29 and "sifive,uart<version>" for the gener 26 and "sifive,uart<version>" for the general UART IP
30 block programming model. 27 block programming model.
31 28
32 UART HDL that corresponds to the IP bloc 29 UART HDL that corresponds to the IP block version
33 numbers can be found here - 30 numbers can be found here -
34 31
35 https://github.com/sifive/sifive-blocks/ 32 https://github.com/sifive/sifive-blocks/tree/master/src/main/scala/devices/uart
36 33
37 reg: 34 reg:
38 maxItems: 1 35 maxItems: 1
39 36
40 interrupts: 37 interrupts:
41 maxItems: 1 38 maxItems: 1
42 39
43 clocks: 40 clocks:
44 maxItems: 1 41 maxItems: 1
45 42
46 required: 43 required:
47 - compatible 44 - compatible
48 - reg 45 - reg
49 - interrupts 46 - interrupts
50 - clocks 47 - clocks
51 48
52 unevaluatedProperties: false !! 49 additionalProperties: false
53 50
54 examples: 51 examples:
55 - | 52 - |
56 #include <dt-bindings/clock/sifive-fu540-p !! 53 #include <dt-bindings/clock/sifive-fu540-prci.h>
57 serial@10010000 { !! 54 serial@10010000 {
58 compatible = "sifive,fu540-c000-uart", 55 compatible = "sifive,fu540-c000-uart", "sifive,uart0";
59 interrupt-parent = <&plic0>; 56 interrupt-parent = <&plic0>;
60 interrupts = <80>; 57 interrupts = <80>;
61 reg = <0x10010000 0x1000>; 58 reg = <0x10010000 0x1000>;
62 clocks = <&prci FU540_PRCI_CLK_TLCLK>; !! 59 clocks = <&prci PRCI_CLK_TLCLK>;
63 }; !! 60 };
64 61
65 ... 62 ...
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