projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 012771d8 WD |
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__ */ |