1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/serial/renesas,scifa.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas Serial Communications Interface with FIFO A (SCIFA)
8
9 maintainers:
10 - Geert Uytterhoeven <geert+renesas@glider.be>
11
12 allOf:
13 - $ref: serial.yaml#
14
15 properties:
16 compatible:
17 oneOf:
18 - items:
19 - enum:
20 - renesas,scifa-r8a73a4 # R-Mobile APE6
21 - renesas,scifa-r8a7740 # R-Mobile A1
22 - renesas,scifa-sh73a0 # SH-Mobile AG5
23 - const: renesas,scifa # generic SCIFA compatible UART
24
25 - items:
26 - enum:
27 - renesas,scifa-r8a7742 # RZ/G1H
28 - renesas,scifa-r8a7743 # RZ/G1M
29 - renesas,scifa-r8a7744 # RZ/G1N
30 - renesas,scifa-r8a7745 # RZ/G1E
31 - renesas,scifa-r8a7790 # R-Car H2
32 - renesas,scifa-r8a7791 # R-Car M2-W
33 - renesas,scifa-r8a7793 # R-Car M2-N
34 - renesas,scifa-r8a7794 # R-Car E2
35 - const: renesas,rcar-gen2-scifa # R-Car Gen2 and RZ/G1
36 - const: renesas,scifa # generic SCIFA compatible UART
37
38 reg:
39 maxItems: 1
40
41 interrupts:
42 maxItems: 1
43
44 clocks:
45 maxItems: 1
46
47 clock-names:
48 enum:
49 - fck # UART functional clock
50
51 power-domains:
52 maxItems: 1
53
54 resets:
55 maxItems: 1
56
57 dmas:
58 minItems: 2
59 maxItems: 4
60 description:
61 Must contain a list of pairs of references to DMA specifiers, one for
62 transmission, and one for reception.
63
64 dma-names:
65 minItems: 2
66 maxItems: 4
67 items:
68 enum:
69 - tx
70 - rx
71
72 required:
73 - compatible
74 - reg
75 - interrupts
76 - clocks
77 - clock-names
78 - power-domains
79
80 if:
81 properties:
82 compatible:
83 contains:
84 enum:
85 - renesas,rcar-gen2-scifa
86 then:
87 required:
88 - resets
89
90 unevaluatedProperties: false
91
92 examples:
93 - |
94 #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
95 #include <dt-bindings/interrupt-controller/arm-gic.h>
96 #include <dt-bindings/power/r8a7790-sysc.h>
97 aliases {
98 serial0 = &scifa0;
99 };
100
101 scifa0: serial@e6c40000 {
102 compatible = "renesas,scifa-r8a7790", "renesas,rcar-gen2-scifa",
103 "renesas,scifa";
104 reg = <0xe6c40000 64>;
105 interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
106 clocks = <&cpg CPG_MOD 204>;
107 clock-names = "fck";
108 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
109 resets = <&cpg 204>;
110 dmas = <&dmac0 0x21>, <&dmac0 0x22>, <&dmac1 0x21>, <&dmac1 0x22>;
111 dma-names = "tx", "rx", "tx", "rx";
112 };
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