source: SVN/rincon/u-boot/board/Marvell/common/serial.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 3.1 KB
Line 
1/*
2 * (C) Copyright 2001
3 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
4 *
5 * modified for marvell db64360 eval board by
6 * Ingo Assmus <ingo.assmus@keymile.com>
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27/*
28 * serial.c - serial support for the gal ev board
29 */
30
31/* supports both the 16650 duart and the MPSC */
32
33#include <common.h>
34#include <command.h>
35#include "../include/memory.h"
36#include "serial.h"
37
38#ifdef CONFIG_DB64360
39#include "../db64360/mpsc.h"
40#endif
41
42#ifdef CONFIG_DB64460
43#include "../db64460/mpsc.h"
44#endif
45
46#include "ns16550.h"
47
48DECLARE_GLOBAL_DATA_PTR;
49
50#ifdef CONFIG_MPSC
51
52
53int serial_init (void)
54{
55#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
56        int clock_divisor = 230400 / gd->baudrate;
57#endif
58
59        mpsc_init (gd->baudrate);
60
61        /* init the DUART chans so that KGDB in the kernel can use them */
62#ifdef CFG_INIT_CHAN1
63        NS16550_reinit (COM_PORTS[0], clock_divisor);
64#endif
65#ifdef CFG_INIT_CHAN2
66        NS16550_reinit (COM_PORTS[1], clock_divisor);
67#endif
68        return (0);
69}
70
71void serial_putc (const char c)
72{
73        if (c == '\n')
74                mpsc_putchar ('\r');
75
76        mpsc_putchar (c);
77}
78
79int serial_getc (void)
80{
81        return mpsc_getchar ();
82}
83
84int serial_tstc (void)
85{
86        return mpsc_test_char ();
87}
88
89void serial_setbrg (void)
90{
91        galbrg_set_baudrate (CONFIG_MPSC_PORT, gd->baudrate);
92}
93
94#else  /* ! CONFIG_MPSC */
95
96int serial_init (void)
97{
98        int clock_divisor = 230400 / gd->baudrate;
99
100#ifdef CFG_INIT_CHAN1
101        (void) NS16550_init (0, clock_divisor);
102#endif
103#ifdef CFG_INIT_CHAN2
104        (void) NS16550_init (1, clock_divisor);
105#endif
106        return (0);
107}
108
109void serial_putc (const char c)
110{
111        if (c == '\n')
112                NS16550_putc (COM_PORTS[CFG_DUART_CHAN], '\r');
113
114        NS16550_putc (COM_PORTS[CFG_DUART_CHAN], c);
115}
116
117int serial_getc (void)
118{
119        return NS16550_getc (COM_PORTS[CFG_DUART_CHAN]);
120}
121
122int serial_tstc (void)
123{
124        return NS16550_tstc (COM_PORTS[CFG_DUART_CHAN]);
125}
126
127void serial_setbrg (void)
128{
129        int clock_divisor = 230400 / gd->baudrate;
130
131#ifdef CFG_INIT_CHAN1
132        NS16550_reinit (COM_PORTS[0], clock_divisor);
133#endif
134#ifdef CFG_INIT_CHAN2
135        NS16550_reinit (COM_PORTS[1], clock_divisor);
136#endif
137}
138
139#endif /* CONFIG_MPSC */
140
141void serial_puts (const char *s)
142{
143        while (*s) {
144                serial_putc (*s++);
145        }
146}
147
148#if defined(CONFIG_CMD_KGDB)
149void kgdb_serial_init (void)
150{
151}
152
153void putDebugChar (int c)
154{
155        serial_putc (c);
156}
157
158void putDebugStr (const char *str)
159{
160        serial_puts (str);
161}
162
163int getDebugChar (void)
164{
165        return serial_getc ();
166}
167
168void kgdb_interruptible (int yes)
169{
170        return;
171}
172#endif
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