source: SVN/rincon/u-boot/board/evb64260/serial.h @ 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: 2.2 KB
Line 
1/* serial.h - mostly useful for DUART serial_init in serial.c */
2
3#ifndef __SERIAL_H__
4#define __SERIAL_H__
5
6#if 0
7
8#define B230400         1
9#define B115200         2
10#define B57600          4
11#define B38400          82
12#define B19200          163
13#define B9600           24
14#define B4800           651
15#define B2400           1302
16#define B1200           2604
17#define B600            5208
18#define B300            10417
19#define B150            20833
20#define B110            28409
21#define BDEFAULT        B115200
22
23                                /* this stuff is important to initialize
24                                the DUART channels */
25
26#define Scale           0x01L           /* distance between port addresses */
27#define COM1            0x000003f8              /* Keyboard */
28#define COM2            0x000002f8              /* Host */
29
30
31/* Port Definitions relative to base COM port addresses */
32#define DataIn  (0x00*Scale)    /* data input port */
33#define DataOut (0x00*Scale)    /* data output port */
34#define BaudLsb (0x00*Scale)    /* baud rate divisor least significant byte */
35#define BaudMsb (0x01*Scale)    /* baud rate divisor most significant byte */
36#define Ier     (0x01*Scale)    /* interrupt enable register */
37#define Iir     (0x02*Scale)    /* interrupt identification register */
38#define Lcr     (0x03*Scale)    /* line control register */
39#define Mcr     (0x04*Scale)    /* modem control register */
40#define Lsr     (0x05*Scale)    /* line status register */
41#define Msr     (0x06*Scale)    /* modem status register */
42
43/* Bit Definitions for above ports */
44#define LcrDlab 0x80    /* b7:   enable baud rate divisor registers */
45#define LcrDflt 0x03    /* b6-0: no parity, 1 stop, 8 data */
46
47#define McrRts  0x02    /* b1:  request to send (I am ready to xmit) */
48#define McrDtr  0x01    /* b0:  data terminal ready (I am alive ready to rcv) */
49#define McrDflt (McrRts|McrDtr)
50
51#define LsrTxD  0x6000  /* b5: transmit holding register empty (i.e. xmit OK!)*/
52                        /* b6: transmitter empty */
53#define LsrRxD  0x0100  /* b0: received data ready (i.e. got a byte!) */
54
55#define MsrRi   0x0040  /* b6: ring indicator (other guy is ready to rcv) */
56#define MsrDsr  0x0020  /* b5: data set ready (other guy is alive ready to rcv */
57#define MsrCts  0x0010  /* b4: clear to send (other guy is ready to rcv) */
58
59#define IerRda  0xf     /* b0: Enable received data available interrupt */
60
61#endif
62
63#endif /* __SERIAL_H__ */
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