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