mirror of
https://github.com/AsahiLinux/u-boot
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131 lines
2.6 KiB
C
131 lines
2.6 KiB
C
/*
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* (C) Copyright 2004, Freescale, Inc
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* TsiChung Liew, Tsi-Chung.Liew@freescale.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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*/
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/*
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* Minimal serial functions needed to use one of the PSC ports
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* as serial console interface.
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*/
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#include <common.h>
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#include <mpc8220.h>
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int serial_init (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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#if defined (CONFIG_EXTUART_CONSOLE)
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volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE;
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#endif
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/* Check CPLD Switch 2 whether is external or internal */
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#if defined (CONFIG_EXTUART_CONSOLE)
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if ((*cpld & 0x02) == 0x02) {
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gd->bExtUart = 1;
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return ext_serial_init ();
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} else
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#endif
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{
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#if defined(CONFIG_PSC_CONSOLE)
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gd->bExtUart = 0;
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return psc_serial_init ();
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#endif
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}
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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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DECLARE_GLOBAL_DATA_PTR;
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if (gd->bExtUart) {
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#if defined (CONFIG_EXTUART_CONSOLE)
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ext_serial_putc (c);
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#endif
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} else {
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#if defined(CONFIG_PSC_CONSOLE)
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psc_serial_putc (c);
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#endif
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}
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}
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void serial_puts (const char *s)
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{
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DECLARE_GLOBAL_DATA_PTR;
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if (gd->bExtUart) {
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#if defined (CONFIG_EXTUART_CONSOLE)
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ext_serial_puts (s);
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#endif
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} else {
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#if defined(CONFIG_PSC_CONSOLE)
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psc_serial_puts (s);
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#endif
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}
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}
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int serial_getc (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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if (gd->bExtUart) {
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#if defined (CONFIG_EXTUART_CONSOLE)
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return ext_serial_getc ();
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#endif
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} else {
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#if defined(CONFIG_PSC_CONSOLE)
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return psc_serial_getc ();
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#endif
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}
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}
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int serial_tstc (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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if (gd->bExtUart) {
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#if defined (CONFIG_EXTUART_CONSOLE)
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return ext_serial_tstc ();
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#endif
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} else {
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#if defined(CONFIG_PSC_CONSOLE)
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return psc_serial_tstc ();
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#endif
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}
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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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if (gd->bExtUart) {
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#if defined (CONFIG_EXTUART_CONSOLE)
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ext_serial_setbrg ();
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#endif
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} else {
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#if defined(CONFIG_PSC_CONSOLE)
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psc_serial_setbrg ();
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#endif
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}
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}
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