diff options
Diffstat (limited to 'board/ssv/common/wd_pio.c')
| -rw-r--r-- | board/ssv/common/wd_pio.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/board/ssv/common/wd_pio.c b/board/ssv/common/wd_pio.c deleted file mode 100644 index eaf1d25..0000000 --- a/board/ssv/common/wd_pio.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * (C) Copyright 2004, Li-Pro.Net <www.li-pro.net> - * Stephan Linz <linz@li-pro.net> - * - * 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 <command.h> -#include <nios.h> -#include <nios-io.h> - -#if defined(CONFIG_HW_WATCHDOG) - -#if !defined(CONFIG_HW_WDENA_BASE) -#error "*** CONFIG_HW_WDENA_BASE not defined ***" -#if !defined(CONFIG_HW_WDENA_BIT) -#error "*** CONFIG_HW_WDENA_BIT not defined ***" -#endif -#endif - -#if !defined(CONFIG_HW_WDTOG_BASE) -#error "*** CONFIG_HW_WDTOG_BASE not defined ***" -#if !defined(CONFIG_HW_WDTOG_BIT) -#error "*** CONFIG_HW_WDTOG_BIT not defined ***" -#endif -#endif - -#ifdef CONFIG_HW_WDPORT_WRONLY /* emulate read access */ -static unsigned __wd_ena_pio_portval = 0; -#endif - -#define WD_PIO_INIT_DONE(V) ((V) & (1 << CONFIG_HW_WDENA_BIT)) - -void ssv_wd_pio_init(void) -{ - nios_pio_t *ena_piop = (nios_pio_t*)CONFIG_HW_WDENA_BASE; - nios_pio_t *trg_piop = (nios_pio_t*)CONFIG_HW_WDTOG_BASE; - - trg_piop->data &= ~(1 << CONFIG_HW_WDTOG_BIT); - -#ifdef CONFIG_HW_WDPORT_WRONLY /* emulate read access */ - - __wd_ena_pio_portval |= (1 << CONFIG_HW_WDENA_BIT); - ena_piop->data = __wd_ena_pio_portval; - -#else /* !CONFIG_HW_WDPORT_WRONLY */ - - trg_piop->direction |= (1 << CONFIG_HW_WDTOG_BIT); - - ena_piop->data |= (1 << CONFIG_HW_WDENA_BIT); - ena_piop->direction |= (1 << CONFIG_HW_WDENA_BIT); - -#endif /* CONFIG_HW_WDPORT_WRONLY */ -} - -void ssv_wd_pio_done(void) -{ - nios_pio_t *piop = (nios_pio_t*)CONFIG_HW_WDENA_BASE; - -#ifdef CONFIG_HW_WDPORT_WRONLY /* emulate read access */ - - __wd_ena_pio_portval &= ~(1 << CONFIG_HW_WDENA_BIT); - piop->data = __wd_ena_pio_portval; - -#else /* !CONFIG_HW_WDPORT_WRONLY */ - - piop->data &= ~(1 << CONFIG_HW_WDENA_BIT); - -#endif /* CONFIG_HW_WDPORT_WRONLY */ -} - -void ssv_wd_pio_reset(void) -{ - nios_pio_t *trg_piop = (nios_pio_t*)CONFIG_HW_WDTOG_BASE; - -#ifdef CONFIG_HW_WDPORT_WRONLY - if (WD_PIO_INIT_DONE(__wd_ena_pio_portval)) -#else - nios_pio_t *ena_piop = (nios_pio_t*)CONFIG_HW_WDENA_BASE; - - if (WD_PIO_INIT_DONE(ena_piop->data)) -#endif - { - trg_piop->data |= (1 << CONFIG_HW_WDTOG_BIT); - trg_piop->data &= ~(1 << CONFIG_HW_WDTOG_BIT); - } -} - -void hw_watchdog_reset(void) -{ - int re_enable = disable_interrupts (); - - ssv_wd_pio_reset(); - if (re_enable) - enable_interrupts (); -} - -#if defined(CONFIG_CMD_BSP) -int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) -{ - nios_pio_t *ena_piop = (nios_pio_t*)CONFIG_HW_WDENA_BASE; - - switch (argc) - { - case 1: - printf ("Watchdog timer status is %s\n", -#ifdef CONFIG_HW_WDPORT_WRONLY - WD_PIO_INIT_DONE(__wd_ena_pio_portval) -#else - WD_PIO_INIT_DONE(ena_piop->data) -#endif - ? "on" : "off"); - return 0; - case 2: - if (!strcmp(argv[1],"on")) - { - ssv_wd_pio_init(); - printf("Watchdog timer now is on\n"); - return 0; - } - else if (!strcmp(argv[1],"off")) - { - ssv_wd_pio_done(); - printf("Watchdog timer now is off\n"); - return 0; - } - break; - default: - break; - } - cmd_usage(cmdtp); - return 1; -} - -U_BOOT_CMD( - wd, 2, 1, do_wd, - "check and set watchdog", - "on - switch watchDog on\n" - "wd off - switch watchdog off\n" - "wd - print current status" -); -#endif -#endif /* CONFIG_HW_WATCHDOG */ |