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: 70 dmas:
87 maxItems: 2 71 maxItems: 2
88 72
89 dma-names: 73 dma-names:
90 items: 74 items:
91 - const: tx 75 - const: tx
92 - const: rx 76 - const: rx
93 77
94 snps,uart-16550-compatible: 78 snps,uart-16550-compatible:
95 description: reflects the value of UART_16 79 description: reflects the value of UART_16550_COMPATIBLE configuration
96 parameter. Define this if your UART does 80 parameter. Define this if your UART does not implement the busy functionality.
97 type: boolean 81 type: boolean
98 82
99 resets: 83 resets:
100 minItems: 1 !! 84 maxItems: 1
101 maxItems: 2 <<
102 85
103 reg-shift: true 86 reg-shift: true
104 87
105 reg-io-width: true 88 reg-io-width: true
106 89
107 dcd-override: 90 dcd-override:
108 description: Override the DCD modem status 91 description: Override the DCD modem status signal. This signal will
109 always be reported as active instead of 92 always be reported as active instead of being obtained from the modem
110 status register. Define this if your ser 93 status register. Define this if your serial port does not use this
111 pin. 94 pin.
112 type: boolean 95 type: boolean
113 96
114 dsr-override: 97 dsr-override:
115 description: Override the DTS modem status 98 description: Override the DTS modem status signal. This signal will
116 always be reported as active instead of 99 always be reported as active instead of being obtained from the modem
117 status register. Define this if your ser 100 status register. Define this if your serial port does not use this
118 pin. 101 pin.
119 type: boolean 102 type: boolean
120 103
121 cts-override: 104 cts-override:
122 description: Override the CTS modem status 105 description: Override the CTS modem status signal. This signal will
123 always be reported as active instead of 106 always be reported as active instead of being obtained from the modem
124 status register. Define this if your ser 107 status register. Define this if your serial port does not use this
125 pin. 108 pin.
126 type: boolean 109 type: boolean
127 110
128 ri-override: 111 ri-override:
129 description: Override the RI modem status 112 description: Override the RI modem status signal. This signal will always
130 be reported as inactive instead of being 113 be reported as inactive instead of being obtained from the modem status
131 register. Define this if your serial por 114 register. Define this if your serial port does not use this pin.
132 type: boolean 115 type: boolean
133 116
134 required: 117 required:
135 - compatible 118 - compatible
136 - reg 119 - reg
>> 120 - interrupts
137 121
138 unevaluatedProperties: false 122 unevaluatedProperties: false
139 123
140 examples: 124 examples:
141 - | 125 - |
142 serial@80230000 { 126 serial@80230000 {
143 compatible = "snps,dw-apb-uart"; 127 compatible = "snps,dw-apb-uart";
144 reg = <0x80230000 0x100>; 128 reg = <0x80230000 0x100>;
145 clock-frequency = <3686400>; 129 clock-frequency = <3686400>;
146 interrupts = <10>; 130 interrupts = <10>;
147 reg-shift = <2>; 131 reg-shift = <2>;
148 reg-io-width = <4>; 132 reg-io-width = <4>;
149 dcd-override; 133 dcd-override;
150 dsr-override; 134 dsr-override;
151 cts-override; 135 cts-override;
152 ri-override; 136 ri-override;
153 }; 137 };
154 138
155 - | 139 - |
156 // Example with one clock: 140 // Example with one clock:
157 serial@80230000 { 141 serial@80230000 {
158 compatible = "snps,dw-apb-uart"; 142 compatible = "snps,dw-apb-uart";
159 reg = <0x80230000 0x100>; 143 reg = <0x80230000 0x100>;
160 clocks = <&baudclk>; 144 clocks = <&baudclk>;
161 interrupts = <10>; 145 interrupts = <10>;
162 reg-shift = <2>; 146 reg-shift = <2>;
163 reg-io-width = <4>; 147 reg-io-width = <4>;
164 }; 148 };
165 149
166 - | 150 - |
167 // Example with two clocks: 151 // Example with two clocks:
168 serial@80230000 { 152 serial@80230000 {
169 compatible = "snps,dw-apb-uart"; 153 compatible = "snps,dw-apb-uart";
170 reg = <0x80230000 0x100>; 154 reg = <0x80230000 0x100>;
171 clocks = <&baudclk>, <&apb_pclk>; 155 clocks = <&baudclk>, <&apb_pclk>;
172 clock-names = "baudclk", "apb_pclk"; 156 clock-names = "baudclk", "apb_pclk";
173 interrupts = <10>; 157 interrupts = <10>;
174 reg-shift = <2>; 158 reg-shift = <2>;
175 reg-io-width = <4>; 159 reg-io-width = <4>;
176 }; 160 };
177 ... 161 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.