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: src/sys/arm/at91/uart_cpu_at91rm9200usart.c,v 1.6 2008/11/25 00:13:26 imp Exp $");
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/bus.h>
37 #include <sys/cons.h>
38 #include <machine/bus.h>
39
40 #include <dev/uart/uart.h>
41 #include <dev/uart/uart_cpu.h>
42
43 #include <arm/at91/at91rm92reg.h>
44
45 bus_space_tag_t uart_bus_space_io;
46 bus_space_tag_t uart_bus_space_mem;
47
48 extern struct uart_class at91_usart_class;
49 extern struct bus_space at91_bs_tag;
50
51 int
52 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
53 {
54 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
55 }
56
57 int
58 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
59 {
60 struct uart_class *class;
61
62 class = &at91_usart_class;
63 di->ops = uart_getops(class);
64 di->bas.chan = 0;
65 di->bas.bst = &at91_bs_tag;
66 /*
67 * XXX: Not pretty, but will work because we map the needed addresses
68 * early.
69 */
70 #ifdef SKYEYE_WORKAROUNDS
71 di->bas.bsh = AT91RM92_BASE + AT91RM92_USART0_BASE;
72 di->baudrate = 38400;
73 #else
74 di->bas.bsh = AT91RM92_BASE + AT91RM92_SYS_BASE + DBGU;
75 di->baudrate = 115200;
76 #endif
77 di->bas.regshft = 0;
78 di->bas.rclk = 0;
79 di->databits = 8;
80 di->stopbits = 1;
81 di->parity = UART_PARITY_NONE;
82 uart_bus_space_io = &at91_bs_tag;
83 uart_bus_space_mem = NULL;
84 /* Check the environment for overrides */
85 uart_getenv(devtype, di, class);
86 return (0);
87 }
88 Cache object: b9c66971e075314d60467bc997dc7d3c
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