board/esd/cpci750/serial.h

   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__ */