The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/at91sam9x5_usart3.dtsi

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    1 // SPDX-License-Identifier: GPL-2.0-only
    2 /*
    3  * at91sam9x5_usart3.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
    4  * 4 USART.
    5  *
    6  * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
    7  */
    8 
    9 #include <dt-bindings/pinctrl/at91.h>
   10 #include <dt-bindings/interrupt-controller/irq.h>
   11 
   12 / {
   13         aliases {
   14                 serial4 = &usart3;
   15         };
   16 
   17         ahb {
   18                 apb {
   19                         pinctrl@fffff400 {
   20                                 usart3 {
   21                                         pinctrl_usart3: usart3-0 {
   22                                                 atmel,pins =
   23                                                         <AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_NONE
   24                                                          AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;
   25                                         };
   26 
   27                                         pinctrl_usart3_rts: usart3_rts-0 {
   28                                                 atmel,pins =
   29                                                         <AT91_PIOC 24 AT91_PERIPH_B AT91_PINCTRL_NONE>;         /* PC24 periph B */
   30                                         };
   31 
   32                                         pinctrl_usart3_cts: usart3_cts-0 {
   33                                                 atmel,pins =
   34                                                         <AT91_PIOC 25 AT91_PERIPH_B AT91_PINCTRL_NONE>;         /* PC25 periph B */
   35                                         };
   36 
   37                                         pinctrl_usart3_sck: usart3_sck-0 {
   38                                                 atmel,pins =
   39                                                         <AT91_PIOC 26 AT91_PERIPH_B AT91_PINCTRL_NONE>;         /* PC26 periph B */
   40                                         };
   41                                 };
   42                         };
   43 
   44                         usart3: serial@f8028000 {
   45                                 compatible = "atmel,at91sam9260-usart";
   46                                 reg = <0xf8028000 0x200>;
   47                                 interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
   48                                 pinctrl-names = "default";
   49                                 pinctrl-0 = <&pinctrl_usart3>;
   50                                 dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(14)>,
   51                                        <&dma1 1 (AT91_DMA_CFG_PER_ID(15) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
   52                                 dma-names = "tx", "rx";
   53                                 clocks = <&pmc PMC_TYPE_PERIPHERAL 8>;
   54                                 clock-names = "usart";
   55                                 status = "disabled";
   56                         };
   57                 };
   58         };
   59 };

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