3 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
5 * modified for marvell db64360 eval board by
6 * Ingo Assmus <ingo.assmus@keymile.com>
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
27 /* serial.h - mostly useful for DUART serial_init in serial.c */
47 #define BDEFAULT B115200
49 /* this stuff is important to initialize
52 #define Scale 0x01L /* distance between port addresses */
53 #define COM1 0x000003f8 /* Keyboard */
54 #define COM2 0x000002f8 /* Host */
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 */
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 */
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)
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!) */
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) */
85 #define IerRda 0xf /* b0: Enable received data available interrupt */
89 #endif /* __SERIAL_H__ */