diff options
Diffstat (limited to 'board/alaska/serial.c')
-rw-r--r-- | board/alaska/serial.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/board/alaska/serial.c b/board/alaska/serial.c new file mode 100644 index 0000000..08285b8 --- /dev/null +++ b/board/alaska/serial.c @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2004, Freescale, Inc + * TsiChung Liew, Tsi-Chung.Liew@freescale.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 + * + */ + +/* + * Minimal serial functions needed to use one of the PSC ports + * as serial console interface. + */ + +#include <common.h> +#include <mpc8220.h> + +int serial_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + +#if defined (CONFIG_EXTUART_CONSOLE) + volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE; +#endif + + /* Check CPLD Switch 2 whether is external or internal */ +#if defined (CONFIG_EXTUART_CONSOLE) + if ((*cpld & 0x02) == 0x02) { + gd->bExtUart = 1; + return ext_serial_init (); + } else +#endif + { +#if defined(CONFIG_PSC_CONSOLE) + gd->bExtUart = 0; + return psc_serial_init (); +#endif + } + + return (0); +} + +void serial_putc (const char c) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->bExtUart) { +#if defined (CONFIG_EXTUART_CONSOLE) + ext_serial_putc (c); +#endif + } else { +#if defined(CONFIG_PSC_CONSOLE) + psc_serial_putc (c); +#endif + } +} + +void serial_puts (const char *s) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->bExtUart) { +#if defined (CONFIG_EXTUART_CONSOLE) + ext_serial_puts (s); +#endif + } else { +#if defined(CONFIG_PSC_CONSOLE) + psc_serial_puts (s); +#endif + } +} + +int serial_getc (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->bExtUart) { +#if defined (CONFIG_EXTUART_CONSOLE) + return ext_serial_getc (); +#endif + } else { +#if defined(CONFIG_PSC_CONSOLE) + return psc_serial_getc (); +#endif + } +} + +int serial_tstc (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->bExtUart) { +#if defined (CONFIG_EXTUART_CONSOLE) + return ext_serial_tstc (); +#endif + } else { +#if defined(CONFIG_PSC_CONSOLE) + return psc_serial_tstc (); +#endif + } +} + +void serial_setbrg (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->bExtUart) { +#if defined (CONFIG_EXTUART_CONSOLE) + ext_serial_setbrg (); +#endif + } else { +#if defined(CONFIG_PSC_CONSOLE) + psc_serial_setbrg (); +#endif + } +} |