source: SVN/rincon/u-boot/board/esd/cpci750/serial.h @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 2 years 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/* serial.h - mostly useful for DUART serial_init in serial.c */
28
29#ifndef __SERIAL_H__
30#define __SERIAL_H__
31
32#if 0
33
34#define B230400         1
35#define B115200         2
36#define B57600          4
37#define B38400          82
38#define B19200          163
39#define B9600           24
40#define B4800           651
41#define B2400           1302
42#define B1200           2604
43#define B600            5208
44#define B300            10417
45#define B150            20833
46#define B110            28409
47#define BDEFAULT        B115200
48
49                                /* this stuff is important to initialize
50                                the DUART channels */
51
52#define Scale           0x01L           /* distance between port addresses */
53#define COM1            0x000003f8              /* Keyboard */
54#define COM2            0x000002f8              /* Host */
55
56
57/* Port Definitions relative to base COM port addresses */
58#define DataIn  (0x00*Scale)    /* data input port */
59#define DataOut (0x00*Scale)    /* data output port */
60#define BaudLsb (0x00*Scale)    /* baud rate divisor least significant byte */
61#define BaudMsb (0x01*Scale)    /* baud rate divisor most significant byte */
62#define Ier     (0x01*Scale)    /* interrupt enable register */
63#define Iir     (0x02*Scale)    /* interrupt identification register */
64#define Lcr     (0x03*Scale)    /* line control register */
65#define Mcr     (0x04*Scale)    /* modem control register */
66#define Lsr     (0x05*Scale)    /* line status register */
67#define Msr     (0x06*Scale)    /* modem status register */
68
69/* Bit Definitions for above ports */
70#define LcrDlab 0x80    /* b7:   enable baud rate divisor registers */
71#define LcrDflt 0x03    /* b6-0: no parity, 1 stop, 8 data */
72
73#define McrRts  0x02    /* b1:  request to send (I am ready to xmit) */
74#define McrDtr  0x01    /* b0:  data terminal ready (I am alive ready to rcv) */
75#define McrDflt (McrRts|McrDtr)
76
77#define LsrTxD  0x6000  /* b5: transmit holding register empty (i.e. xmit OK!)*/
78                        /* b6: transmitter empty */
79#define LsrRxD  0x0100  /* b0: received data ready (i.e. got a byte!) */
80
81#define MsrRi   0x0040  /* b6: ring indicator (other guy is ready to rcv) */
82#define MsrDsr  0x0020  /* b5: data set ready (other guy is alive ready to rcv */
83#define MsrCts  0x0010  /* b4: clear to send (other guy is ready to rcv) */
84
85#define IerRda  0xf     /* b0: Enable received data available interrupt */
86
87#endif
88
89#endif /* __SERIAL_H__ */
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