arch/arm/boot/dts/at91sam9x5_usart3.dtsi

   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 };