text: /*-
   * Copyright (c) 2003 Marcel Moolenaar
   * Copyright (c) 2006 M. Warner Losh
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include "opt_uart.h"
  
  #include <sys/cdefs.h>
  __FBSDID("$FreeBSD: soc2013/dpl/head/sys/arm/at91/uart_cpu_at91usart.c 239315 2012-07-12 19:15:38Z imp $");
  
  #include <sys/param.h>
  #include <sys/systm.h>
  #include <sys/bus.h>
  #include <sys/cons.h>
  #include <sys/lock.h>
  #include <sys/mutex.h>
  #include <machine/bus.h>
  
  #include <dev/uart/uart.h>
  #include <dev/uart/uart_bus.h>
  #include <dev/uart/uart_cpu.h>
  
  #include <arm/at91/at91var.h>
  
  bus_space_tag_t uart_bus_space_io;
  bus_space_tag_t uart_bus_space_mem;
  
  extern struct uart_class at91_usart_class;
  extern struct bus_space at91_bs_tag;
  
  int
  uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
  {
  	return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
  }
  
  int
  uart_cpu_getdev(int devtype, struct uart_devinfo *di)
  {
  	struct uart_class *class;
  
  	class = &at91_usart_class;
  	if (class->uc_rclk == 0 && at91_master_clock != 0)
  		class->uc_rclk = at91_master_clock;
  	di->ops = uart_getops(class);
  	di->bas.chan = 0;
  	di->bas.bst = &at91_bs_tag;
  	/*
  	 * XXX: Not pretty, but will work because we map the needed addresses
  	 * early.  At least we probed this so that the console will work on
           * all flavors of Atmel we can detect.
  	 */
  	di->bas.bsh = soc_info.dbgu_base;
  	di->baudrate = 115200;
  	di->bas.regshft = 0;
  	di->bas.rclk = 0;
  	di->databits = 8;
  	di->stopbits = 1;
  	di->parity = UART_PARITY_NONE;
  	uart_bus_space_io = &at91_bs_tag;
  	uart_bus_space_mem = NULL;
  	/* Check the environment for overrides */
  	uart_getenv(devtype, di, class);
  	return (0);
  }
  