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/snps 4 $id: http://devicetree.org/schemas/serial/snps-dw-apb-uart.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Synopsys DesignWare ABP UART 7 title: Synopsys DesignWare ABP UART
8 8
9 maintainers: 9 maintainers:
10 - Rob Herring <robh@kernel.org> 10 - Rob Herring <robh@kernel.org>
11 11
12 allOf: 12 allOf:
13 - $ref: serial.yaml# 13 - $ref: serial.yaml#
14 - $ref: rs485.yaml# <<
15 <<
16 - if: <<
17 properties: <<
18 compatible: <<
19 contains: <<
20 const: starfive,jh7110-uart <<
21 then: <<
22 properties: <<
23 resets: <<
24 minItems: 2 <<
25 else: <<
26 properties: <<
27 resets: <<
28 maxItems: 1 <<
29 14
30 properties: 15 properties:
31 compatible: 16 compatible:
32 oneOf: 17 oneOf:
33 - items: 18 - items:
34 - enum: 19 - enum:
35 - renesas,r9a06g032-uart 20 - renesas,r9a06g032-uart
36 - renesas,r9a06g033-uart 21 - renesas,r9a06g033-uart
37 - const: renesas,rzn1-uart 22 - const: renesas,rzn1-uart
38 - items: 23 - items:
39 - enum: 24 - enum:
40 - rockchip,px30-uart 25 - rockchip,px30-uart
41 - rockchip,rk1808-uart 26 - rockchip,rk1808-uart
42 - rockchip,rk3036-uart 27 - rockchip,rk3036-uart
43 - rockchip,rk3066-uart 28 - rockchip,rk3066-uart
44 - rockchip,rk3128-uart 29 - rockchip,rk3128-uart
45 - rockchip,rk3188-uart 30 - rockchip,rk3188-uart
46 - rockchip,rk3288-uart 31 - rockchip,rk3288-uart
47 - rockchip,rk3308-uart 32 - rockchip,rk3308-uart
48 - rockchip,rk3328-uart 33 - rockchip,rk3328-uart
49 - rockchip,rk3368-uart 34 - rockchip,rk3368-uart
50 - rockchip,rk3399-uart 35 - rockchip,rk3399-uart
51 - rockchip,rk3568-uart 36 - rockchip,rk3568-uart
52 - rockchip,rk3588-uart 37 - rockchip,rk3588-uart
53 - rockchip,rv1108-uart 38 - rockchip,rv1108-uart
54 - rockchip,rv1126-uart 39 - rockchip,rv1126-uart
55 - const: snps,dw-apb-uart 40 - const: snps,dw-apb-uart
56 - items: 41 - items:
57 - enum: 42 - enum:
58 - brcm,bcm11351-dw-apb-uart 43 - brcm,bcm11351-dw-apb-uart
59 - brcm,bcm21664-dw-apb-uart 44 - brcm,bcm21664-dw-apb-uart
60 - const: snps,dw-apb-uart 45 - const: snps,dw-apb-uart
61 - items: 46 - items:
62 - enum: 47 - enum:
63 - starfive,jh7100-hsuart 48 - starfive,jh7100-hsuart
64 - starfive,jh7100-uart 49 - starfive,jh7100-uart
65 - starfive,jh7110-uart <<
66 - const: snps,dw-apb-uart 50 - const: snps,dw-apb-uart
67 - const: snps,dw-apb-uart 51 - const: snps,dw-apb-uart
68 52
69 reg: 53 reg:
70 maxItems: 1 54 maxItems: 1
71 55
72 interrupts: 56 interrupts:
73 maxItems: 1 57 maxItems: 1
74 58
75 clock-frequency: true 59 clock-frequency: true
76 60
77 clocks: 61 clocks:
78 minItems: 1 62 minItems: 1
79 maxItems: 2 63 maxItems: 2
80 64
81 clock-names: 65 clock-names:
82 items: 66 items:
83 - const: baudclk 67 - const: baudclk
84 - const: apb_pclk 68 - const: apb_pclk
85 69
86 dmas: <<
87 maxItems: 2 <<
88 <<
89 dma-names: <<
90 items: <<
91 - const: tx <<
92 - const: rx <<
93 <<
94 snps,uart-16550-compatible: 70 snps,uart-16550-compatible:
95 description: reflects the value of UART_16 71 description: reflects the value of UART_16550_COMPATIBLE configuration
96 parameter. Define this if your UART does 72 parameter. Define this if your UART does not implement the busy functionality.
97 type: boolean 73 type: boolean
98 74
99 resets: 75 resets:
100 minItems: 1 !! 76 maxItems: 1
101 maxItems: 2 <<
102 77
103 reg-shift: true 78 reg-shift: true
104 79
105 reg-io-width: true 80 reg-io-width: true
106 81
107 dcd-override: 82 dcd-override:
108 description: Override the DCD modem status 83 description: Override the DCD modem status signal. This signal will
109 always be reported as active instead of 84 always be reported as active instead of being obtained from the modem
110 status register. Define this if your ser 85 status register. Define this if your serial port does not use this
111 pin. 86 pin.
112 type: boolean 87 type: boolean
113 88
114 dsr-override: 89 dsr-override:
115 description: Override the DTS modem status 90 description: Override the DTS modem status signal. This signal will
116 always be reported as active instead of 91 always be reported as active instead of being obtained from the modem
117 status register. Define this if your ser 92 status register. Define this if your serial port does not use this
118 pin. 93 pin.
119 type: boolean 94 type: boolean
120 95
121 cts-override: 96 cts-override:
122 description: Override the CTS modem status 97 description: Override the CTS modem status signal. This signal will
123 always be reported as active instead of 98 always be reported as active instead of being obtained from the modem
124 status register. Define this if your ser 99 status register. Define this if your serial port does not use this
125 pin. 100 pin.
126 type: boolean 101 type: boolean
127 102
128 ri-override: 103 ri-override:
129 description: Override the RI modem status 104 description: Override the RI modem status signal. This signal will always
130 be reported as inactive instead of being 105 be reported as inactive instead of being obtained from the modem status
131 register. Define this if your serial por 106 register. Define this if your serial port does not use this pin.
132 type: boolean 107 type: boolean
133 108
134 required: 109 required:
135 - compatible 110 - compatible
136 - reg 111 - reg
>> 112 - interrupts
137 113
138 unevaluatedProperties: false 114 unevaluatedProperties: false
139 115
140 examples: 116 examples:
141 - | 117 - |
142 serial@80230000 { 118 serial@80230000 {
143 compatible = "snps,dw-apb-uart"; 119 compatible = "snps,dw-apb-uart";
144 reg = <0x80230000 0x100>; 120 reg = <0x80230000 0x100>;
145 clock-frequency = <3686400>; 121 clock-frequency = <3686400>;
146 interrupts = <10>; 122 interrupts = <10>;
147 reg-shift = <2>; 123 reg-shift = <2>;
148 reg-io-width = <4>; 124 reg-io-width = <4>;
149 dcd-override; 125 dcd-override;
150 dsr-override; 126 dsr-override;
151 cts-override; 127 cts-override;
152 ri-override; 128 ri-override;
153 }; 129 };
154 130
155 - | 131 - |
156 // Example with one clock: 132 // Example with one clock:
157 serial@80230000 { 133 serial@80230000 {
158 compatible = "snps,dw-apb-uart"; 134 compatible = "snps,dw-apb-uart";
159 reg = <0x80230000 0x100>; 135 reg = <0x80230000 0x100>;
160 clocks = <&baudclk>; 136 clocks = <&baudclk>;
161 interrupts = <10>; 137 interrupts = <10>;
162 reg-shift = <2>; 138 reg-shift = <2>;
163 reg-io-width = <4>; 139 reg-io-width = <4>;
164 }; 140 };
165 141
166 - | 142 - |
167 // Example with two clocks: 143 // Example with two clocks:
168 serial@80230000 { 144 serial@80230000 {
169 compatible = "snps,dw-apb-uart"; 145 compatible = "snps,dw-apb-uart";
170 reg = <0x80230000 0x100>; 146 reg = <0x80230000 0x100>;
171 clocks = <&baudclk>, <&apb_pclk>; 147 clocks = <&baudclk>, <&apb_pclk>;
172 clock-names = "baudclk", "apb_pclk"; 148 clock-names = "baudclk", "apb_pclk";
173 interrupts = <10>; 149 interrupts = <10>;
174 reg-shift = <2>; 150 reg-shift = <2>;
175 reg-io-width = <4>; 151 reg-io-width = <4>;
176 }; 152 };
177 ... 153 ...
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