projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 507bbe3e WD |
1 | /* |
| 2 | * (C) Copyright 2004 Atmark Techno, Inc. | |
| 3 | * | |
| 4 | * Yasushi SHOJI <yashi@atmark-techno.com> | |
| 5 | * | |
| 6 | * See file CREDITS for list of people who contributed to this | |
| 7 | * project. | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU General Public License as | |
| 11 | * published by the Free Software Foundation; either version 2 of | |
| 12 | * the License, or (at your option) any later version. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 22 | * MA 02111-1307 USA | |
| 23 | */ | |
| 24 | ||
| 25 | #include <config.h> | |
| e35745bb | 26 | |
| 857cad37 | 27 | #ifdef CONFIG_MICROBLAZE |
| e35745bb | 28 | |
| 507bbe3e WD |
29 | #include <asm/serial_xuartlite.h> |
| 30 | ||
| 31 | /* FIXME: we should convert these to in32 and out32 */ | |
| 32 | #define IO_WORD(offset) (*(volatile unsigned long *)(offset)) | |
| 33 | #define IO_SERIAL(offset) IO_WORD(CONFIG_SERIAL_BASE + (offset)) | |
| 34 | ||
| 35 | #define IO_SERIAL_RX_FIFO IO_SERIAL(XUL_RX_FIFO_OFFSET) | |
| 36 | #define IO_SERIAL_TX_FIFO IO_SERIAL(XUL_TX_FIFO_OFFSET) | |
| 37 | #define IO_SERIAL_STATUS IO_SERIAL(XUL_STATUS_REG_OFFSET) | |
| 38 | #define IO_SERIAL_CONTROL IO_SERIAL(XUL_CONTROL_REG_OFFSET) | |
| 39 | ||
| 40 | int serial_init(void) | |
| 41 | { | |
| 42 | /* FIXME: Nothing for now. We should initialize fifo, etc */ | |
| 43 | return 0; | |
| 44 | } | |
| 45 | ||
| 46 | void serial_setbrg(void) | |
| 47 | { | |
| 48 | /* FIXME: what's this for? */ | |
| 49 | } | |
| 50 | ||
| 51 | void serial_putc(const char c) | |
| 52 | { | |
| 53 | if (c == '\n') serial_putc('\r'); | |
| 54 | while (IO_SERIAL_STATUS & XUL_SR_TX_FIFO_FULL); | |
| 55 | IO_SERIAL_TX_FIFO = (unsigned char) (c & 0xff); | |
| 507bbe3e WD |
56 | } |
| 57 | ||
| 58 | void serial_puts(const char * s) | |
| 59 | { | |
| 60 | while (*s) { | |
| 61 | serial_putc(*s++); | |
| 62 | } | |
| 63 | } | |
| 64 | ||
| 65 | int serial_getc(void) | |
| 66 | { | |
| 67 | while (!(IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA)); | |
| 68 | return IO_SERIAL_RX_FIFO & 0xff; | |
| 69 | } | |
| 70 | ||
| 71 | int serial_tstc(void) | |
| 72 | { | |
| 73 | return (IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA); | |
| 74 | } | |
| e35745bb WD |
75 | |
| 76 | #endif /* CONFIG_MICROBLZE */ |