boot/dts/at91sam9x5_usart3.dtsi

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * at91sam9x5_usart3.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
0004  * 4 USART.
0005  *
0006  * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
0007  */
0008
0009 #include <dt-bindings/pinctrl/at91.h>
0010 #include <dt-bindings/interrupt-controller/irq.h>
0011
0012 / {
0013         aliases {
0014                 serial4 = &usart3;
0015         };
0016
0017         ahb {
0018                 apb {
0019                         pinctrl@fffff400 {
0020                                 usart3 {
0021                                         pinctrl_usart3: usart3-0 {
0022                                                 atmel,pins =
0023                                                         <AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_NONE
0024                                                          AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;
0025                                         };
0026
0027                                         pinctrl_usart3_rts: usart3_rts-0 {
0028                                                 atmel,pins =
0029                                                         <AT91_PIOC 24 AT91_PERIPH_B AT91_PINCTRL_NONE>;         /* PC24 periph B */
0030                                         };
0031
0032                                         pinctrl_usart3_cts: usart3_cts-0 {
0033                                                 atmel,pins =
0034                                                         <AT91_PIOC 25 AT91_PERIPH_B AT91_PINCTRL_NONE>;         /* PC25 periph B */
0035                                         };
0036
0037                                         pinctrl_usart3_sck: usart3_sck-0 {
0038                                                 atmel,pins =
0039                                                         <AT91_PIOC 26 AT91_PERIPH_B AT91_PINCTRL_NONE>;         /* PC26 periph B */
0040                                         };
0041                                 };
0042                         };
0043
0044                         usart3: serial@f8028000 {
0045                                 compatible = "atmel,at91sam9260-usart";
0046                                 reg = <0xf8028000 0x200>;
0047                                 interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
0048                                 pinctrl-names = "default";
0049                                 pinctrl-0 = <&pinctrl_usart3>;
0050                                 dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(14)>,
0051                                        <&dma1 1 (AT91_DMA_CFG_PER_ID(15) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
0052                                 dma-names = "tx", "rx";
0053                                 clocks = <&pmc PMC_TYPE_PERIPHERAL 8>;
0054                                 clock-names = "usart";
0055                                 status = "disabled";
0056                         };
0057                 };
0058         };
0059 };