1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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 THE 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 THE 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 * $Id$
29 */
30 /*
31 * Skeleton of this file was based on respective code for ARM
32 * code written by Olivier Houchard.
33 */
34 #include "opt_uart.h"
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/bus.h>
42 #include <sys/cons.h>
43
44 #include <machine/bus.h>
45
46 #include <dev/uart/uart.h>
47 #include <dev/uart/uart_cpu.h>
48
49 #include <mips/malta/maltareg.h>
50
51 bus_space_tag_t uart_bus_space_io;
52 bus_space_tag_t uart_bus_space_mem;
53
54 extern struct uart_ops malta_usart_ops;
55 extern struct bus_space malta_bs_tag;
56
57 int
58 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
59 {
60 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
61 }
62
63 int
64 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
65 {
66 di->ops = uart_getops(&uart_ns8250_class);
67 di->bas.chan = 0;
68 di->bas.bst = mips_bus_space_generic;
69 di->bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
70 di->bas.regshft = 0;
71 di->bas.rclk = 0;
72 di->baudrate = 0; /* retain the baudrate configured by YAMON */
73 di->databits = 8;
74 di->stopbits = 1;
75 di->parity = UART_PARITY_NONE;
76
77 uart_bus_space_io = NULL;
78 uart_bus_space_mem = mips_bus_space_generic;
79 return (0);
80 }
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