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