diff options
Diffstat (limited to 'cpu/mpc5xx/serial.c')
| -rw-r--r-- | cpu/mpc5xx/serial.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/cpu/mpc5xx/serial.c b/cpu/mpc5xx/serial.c deleted file mode 100644 index 88c6db8..0000000 --- a/cpu/mpc5xx/serial.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * (C) Copyright 2003 - * Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: serial.c - * - * Discription: Serial interface driver for SCI1 and SCI2. - * Since this code will be called from ROM use - * only non-static local variables. - * - */ - -#include <common.h> -#include <watchdog.h> -#include <command.h> -#include <mpc5xx.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Local function prototypes - */ - -static int ready_to_send(void); - -/* - * Minimal global serial functions needed to use one of the SCI modules. - */ - -int serial_init (void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - - serial_setbrg(); - -#if defined(CONFIG_5xx_CONS_SCI1) - /* 10-Bit, 1 start bit, 8 data bit, no parity, 1 stop bit */ - immr->im_qsmcm.qsmcm_scc1r1 = SCI_M_10; - immr->im_qsmcm.qsmcm_scc1r1 = SCI_TE | SCI_RE; -#else - immr->im_qsmcm.qsmcm_scc2r1 = SCI_M_10; - immr->im_qsmcm.qsmcm_scc2r1 = SCI_TE | SCI_RE; -#endif - return 0; -} - -void serial_putc(const char c) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - - /* Test for completition */ - if(ready_to_send()) { -#if defined(CONFIG_5xx_CONS_SCI1) - immr->im_qsmcm.qsmcm_sc1dr = (short)c; -#else - immr->im_qsmcm.qsmcm_sc2dr = (short)c; -#endif - if(c == '\n') { - if(ready_to_send()); -#if defined(CONFIG_5xx_CONS_SCI1) - immr->im_qsmcm.qsmcm_sc1dr = (short)'\r'; -#else - immr->im_qsmcm.qsmcm_sc2dr = (short)'\r'; -#endif - } - } -} - -int serial_getc(void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - volatile short status; - unsigned char tmp; - - /* New data ? */ - do { -#if defined(CONFIG_5xx_CONS_SCI1) - status = immr->im_qsmcm.qsmcm_sc1sr; -#else - status = immr->im_qsmcm.qsmcm_sc2sr; -#endif - -#if defined(CONFIG_WATCHDOG) - reset_5xx_watchdog (immr); -#endif - } while ((status & SCI_RDRF) == 0); - - /* Read data */ -#if defined(CONFIG_5xx_CONS_SCI1) - tmp = (unsigned char)(immr->im_qsmcm.qsmcm_sc1dr & SCI_SCXDR_MK); -#else - tmp = (unsigned char)( immr->im_qsmcm.qsmcm_sc2dr & SCI_SCXDR_MK); -#endif - return tmp; -} - -int serial_tstc() -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - short status; - - /* New data character ? */ -#if defined(CONFIG_5xx_CONS_SCI1) - status = immr->im_qsmcm.qsmcm_sc1sr; -#else - status = immr->im_qsmcm.qsmcm_sc2sr; -#endif - return (status & SCI_RDRF); -} - -void serial_setbrg (void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - short scxbr; - - /* Set baudrate */ - scxbr = (gd->cpu_clk / (32 * gd->baudrate)); -#if defined(CONFIG_5xx_CONS_SCI1) - immr->im_qsmcm.qsmcm_scc1r0 = (scxbr & SCI_SCXBR_MK); -#else - immr->im_qsmcm.qsmcm_scc2r0 = (scxbr & SCI_SCXBR_MK); -#endif -} - -void serial_puts (const char *s) -{ - while (*s) { - serial_putc(*s); - ++s; - } -} - -int ready_to_send(void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - volatile short status; - - do { -#if defined(CONFIG_5xx_CONS_SCI1) - status = immr->im_qsmcm.qsmcm_sc1sr; -#else - status = immr->im_qsmcm.qsmcm_sc2sr; -#endif - -#if defined(CONFIG_WATCHDOG) - reset_5xx_watchdog (immr); -#endif - } while ((status & SCI_TDRE) == 0); - return 1; - -} |