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