mirror of
https://github.com/AsahiLinux/u-boot
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83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
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* (C) Copyright 2000
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* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include "ns16550.h"
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#if CONFIG_CONS_INDEX == 1
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static struct NS16550 *console =
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(struct NS16550 *) (CFG_EUMB_ADDR + 0x4500);
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#elif CONFIG_CONS_INDEX == 2
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static struct NS16550 *console =
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(struct NS16550 *) (CFG_EUMB_ADDR + 0x4500);
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#else
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#error no valid console defined
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#endif
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extern ulong get_bus_freq (ulong);
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int serial_init (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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int clock_divisor = gd->bus_clk / 16 / gd->baudrate;
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NS16550_init (CONFIG_CONS_INDEX - 1, clock_divisor);
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return (0);
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}
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void serial_putc (const char c)
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{
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if (c == '\n') {
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serial_putc ('\r');
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}
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NS16550_putc (console, c);
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}
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void serial_puts (const char *s)
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{
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while (*s) {
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serial_putc (*s++);
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}
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}
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int serial_getc (void)
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{
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return NS16550_getc (console);
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}
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int serial_tstc (void)
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{
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return NS16550_tstc (console);
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}
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void serial_setbrg (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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int clock_divisor = get_bus_freq (0) / 16 / gd->baudrate;
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NS16550_reinit (console, clock_divisor);
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}
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