2 * (C) Copyright 2004 Atmark Techno, Inc.
4 * Yasushi SHOJI <yashi@atmark-techno.com>
6 * See file CREDITS for list of people who contributed to this
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.
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.
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,
26 #include <asm/serial_xuartlite.h>
28 /* FIXME: we should convert these to in32 and out32 */
29 #define IO_WORD(offset) (*(volatile unsigned long *)(offset))
30 #define IO_SERIAL(offset) IO_WORD(CONFIG_SERIAL_BASE + (offset))
32 #define IO_SERIAL_RX_FIFO IO_SERIAL(XUL_RX_FIFO_OFFSET)
33 #define IO_SERIAL_TX_FIFO IO_SERIAL(XUL_TX_FIFO_OFFSET)
34 #define IO_SERIAL_STATUS IO_SERIAL(XUL_STATUS_REG_OFFSET)
35 #define IO_SERIAL_CONTROL IO_SERIAL(XUL_CONTROL_REG_OFFSET)
39 /* FIXME: Nothing for now. We should initialize fifo, etc */
43 void serial_setbrg(void)
45 /* FIXME: what's this for? */
48 void serial_putc(const char c)
50 if (c == '\n') serial_putc('\r');
51 while (IO_SERIAL_STATUS & XUL_SR_TX_FIFO_FULL);
52 IO_SERIAL_TX_FIFO = (unsigned char) (c & 0xff);
56 void serial_puts(const char * s)
65 while (!(IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA));
66 return IO_SERIAL_RX_FIFO & 0xff;
71 return (IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA);