1/*- 2 * Copyright (c) 2003 Marcel Moolenaar 3 * Copyright (c) 2006 M. Warner Losh 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include "opt_uart.h" 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD$"); 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bus.h> 37#include <sys/cons.h> 38#include <sys/lock.h> 39#include <sys/mutex.h> 40#include <machine/bus.h> 41 42#include <dev/uart/uart.h> 43#include <dev/uart/uart_bus.h> 44#include <dev/uart/uart_cpu.h> 45 46#include <arm/at91/at91rm92reg.h> 47#include <arm/at91/at91var.h> 48 49bus_space_tag_t uart_bus_space_io; 50bus_space_tag_t uart_bus_space_mem; 51 52extern struct uart_class at91_usart_class; 53extern struct bus_space at91_bs_tag; 54 55int 56uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 57{ 58 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 59} 60 61int 62uart_cpu_getdev(int devtype, struct uart_devinfo *di) 63{ 64 struct uart_class *class; 65 66 class = &at91_usart_class; 67 if (class->uc_rclk == 0 && at91_master_clock != 0) 68 class->uc_rclk = at91_master_clock; 69 di->ops = uart_getops(class); 70 di->bas.chan = 0; 71 di->bas.bst = &at91_bs_tag; 72 /* 73 * XXX: Not pretty, but will work because we map the needed addresses 74 * early. 75 */ 76 di->bas.bsh = AT91RM92_BASE + AT91RM92_DBGU_BASE; 77 di->baudrate = 115200; 78 di->bas.regshft = 0; 79 di->bas.rclk = 0; 80 di->databits = 8; 81 di->stopbits = 1; 82 di->parity = UART_PARITY_NONE; 83 uart_bus_space_io = &at91_bs_tag; 84 uart_bus_space_mem = NULL; 85 /* Check the environment for overrides */ 86 uart_getenv(devtype, di, class); 87 return (0); 88} 89