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