bindings/serial/atmel%2Cat91-usart.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/serial/atmel,at91-usart.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11   - Richard Genoud <richard.genoud@bootlin.com>
16       - enum:
17           - atmel,at91rm9200-usart
18           - atmel,at91sam9260-usart
19       - items:
20           - const: atmel,at91rm9200-dbgu
21           - const: atmel,at91rm9200-usart
22       - items:
23           - const: atmel,at91sam9260-dbgu
24           - const: atmel,at91sam9260-usart
25       - items:
26           - enum:
27               - microchip,sam9x60-usart
28               - microchip,sam9x7-usart
29               - microchip,sama7d65-usart
30           - const: atmel,at91sam9260-usart
31       - items:
32           - const: microchip,sam9x60-dbgu
33           - const: microchip,sam9x60-usart
34           - const: atmel,at91sam9260-dbgu
35           - const: atmel,at91sam9260-usart
36       - items:
37           - const: microchip,sam9x7-dbgu
38           - const: atmel,at91sam9260-dbgu
39           - const: microchip,sam9x7-usart
40           - const: atmel,at91sam9260-usart
48   clock-names:
51       - const: usart
52       - const: gclk
57       - description: USART Peripheral Clock
58       - description: USART Generic Clock
62       - description: TX DMA Channel
63       - description: RX DMA Channel
65   dma-names:
67       - const: tx
68       - const: rx
70   atmel,usart-mode:
74       <AT91_USART_MODE_SERIAL> for USART (found in dt-bindings/mfd/at91-usart.h).
77   atmel,use-dma-rx:
81   atmel,use-dma-tx:
85   atmel,fifo-size:
93   - compatible
94   - reg
95   - interrupts
96   - clock-names
97   - clocks
98   - atmel,usart-mode
101   - if:
103         atmel,usart-mode:
107         - $ref: /schemas/spi/spi-controller.yaml#
110         atmel,use-dma-rx: false
112         atmel,use-dma-tx: false
114         atmel,fifo-size: false
116         "#size-cells":
119         "#address-cells":
123         - "#size-cells"
124         - "#address-cells"
128         - $ref: /schemas/serial/serial.yaml#
129         - $ref: /schemas/serial/rs485.yaml#
134   - |
135     #include <dt-bindings/gpio/gpio.h>
136     #include <dt-bindings/interrupt-controller/irq.h>
137     #include <dt-bindings/mfd/at91-usart.h>
138     #include <dt-bindings/dma/at91.h>
142         compatible = "atmel,at91sam9260-usart";
144         atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
147         clock-names = "usart";
148         atmel,use-dma-rx;
149         atmel,use-dma-tx;
150         rts-gpios = <&pioD 15 GPIO_ACTIVE_LOW>;
151         cts-gpios = <&pioD 16 GPIO_ACTIVE_LOW>;
152         dtr-gpios = <&pioD 17 GPIO_ACTIVE_LOW>;
153         dsr-gpios = <&pioD 18 GPIO_ACTIVE_LOW>;
154         dcd-gpios = <&pioD 20 GPIO_ACTIVE_LOW>;
155         rng-gpios = <&pioD 19 GPIO_ACTIVE_LOW>;
158   - |
159     #include <dt-bindings/gpio/gpio.h>
160     #include <dt-bindings/interrupt-controller/irq.h>
161     #include <dt-bindings/mfd/at91-usart.h>
162     #include <dt-bindings/dma/at91.h>
166         compatible = "atmel,at91sam9260-usart";
168         atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
171         clock-names = "usart";
172         atmel,use-dma-rx;
173         atmel,use-dma-tx;
176         dma-names = "tx", "rx";
177         atmel,fifo-size = <32>;
180   - |
181     #include <dt-bindings/gpio/gpio.h>
182     #include <dt-bindings/interrupt-controller/irq.h>
183     #include <dt-bindings/mfd/at91-usart.h>
184     #include <dt-bindings/dma/at91.h>
188         compatible = "atmel,at91sam9260-usart";
190         #address-cells = <1>;
191         #size-cells = <0>;
192         atmel,usart-mode = <AT91_USART_MODE_SPI>;
195         clock-names = "usart";
198         dma-names = "tx", "rx";
199         cs-gpios = <&pioB 3 GPIO_ACTIVE_HIGH>;