1 /*-
2 * Copyright (C) 2009 Yohanes Nugroho <yohanes@gmail.com>
3 * All rights reserved.
4 *
5 * Developed by Semihalf.
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 * 3. Neither the name of MARVELL nor the names of contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include "opt_uart.h"
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: releng/9.1/sys/arm/econa/uart_cpu_ec.c 201468 2010-01-04 03:35:45Z rpaulo $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/bus.h>
40 #include <sys/cons.h>
41
42 #include <machine/bus.h>
43
44 #include <dev/uart/uart.h>
45 #include <dev/uart/uart_cpu.h>
46
47 #include <sys/rman.h>
48
49 #include <arm/econa/econa_reg.h>
50 #include <arm/econa/econa_var.h>
51
52 bus_space_tag_t uart_bus_space_io;
53 bus_space_tag_t uart_bus_space_mem;
54
55 int
56 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
57 {
58
59 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
60 }
61
62 int
63 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
64 {
65 struct uart_class *class = &uart_ns8250_class;
66
67 di->ops = uart_getops(class);
68 di->bas.chan = 0;
69 di->bas.bst = obio_tag;
70
71 if (bus_space_map(di->bas.bst, ECONA_IO_BASE + ECONA_UART_BASE,
72 ECONA_UART_SIZE,
73 0, &di->bas.bsh) != 0) {
74 return (ENXIO);
75 }
76
77 di->baudrate = 0;
78 di->bas.regshft = EC_UART_REGSHIFT;
79 di->bas.rclk = EC_UART_CLOCK ;
80 di->databits = 8;
81 di->stopbits = 1;
82 di->parity = UART_PARITY_NONE;
83 uart_bus_space_mem = obio_tag;
84 uart_bus_space_io = NULL;
85
86 return (0);
87 }
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