diff options
Diffstat (limited to 'bsps/sparc/leon3/btimer/watchdog.c')
-rw-r--r-- | bsps/sparc/leon3/btimer/watchdog.c | 52 |
1 files changed, 37 insertions, 15 deletions
diff --git a/bsps/sparc/leon3/btimer/watchdog.c b/bsps/sparc/leon3/btimer/watchdog.c index 4e8f428f78..919744496f 100644 --- a/bsps/sparc/leon3/btimer/watchdog.c +++ b/bsps/sparc/leon3/btimer/watchdog.c @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /* GPTIMER Watchdog timer routines. On some systems the first GPTIMER * core's last Timer instance underflow signal is connected to system * reset. @@ -5,20 +7,35 @@ * COPYRIGHT (c) 2012. * Cobham Gaisler AB. * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #include <bsp.h> +#include <bsp/leon3.h> #include <bsp/watchdog.h> -#include <grlib/grlib.h> - -extern volatile struct gptimer_regs *LEON3_Timer_Regs; struct gptimer_watchdog_priv { - struct gptimer_regs *regs; - struct gptimer_timer_regs *timer; + gptimer *regs; + gptimer_timer *timer; int timerno; }; @@ -41,10 +58,10 @@ int bsp_watchdog_init(void) * functionality is available or not, we assume that it is if we * reached this function. */ - bsp_watchdogs[0].regs = (struct gptimer_regs *)LEON3_Timer_Regs; + bsp_watchdogs[0].regs = LEON3_Timer_Regs; /* Find Timer that has watchdog functionality */ - timercnt = bsp_watchdogs[0].regs->cfg & 0x7; + timercnt = grlib_load_32(&bsp_watchdogs[0].regs->config) & 0x7; if (timercnt < 2) /* First timer system clock timer */ return 0; @@ -57,6 +74,9 @@ int bsp_watchdog_init(void) void bsp_watchdog_reload(int watchdog, unsigned int reload_value) { + gptimer_timer *timer; + uint32_t tctrl; + if (bsp_watchdog_count == 0) bsp_watchdog_init(); @@ -64,10 +84,12 @@ void bsp_watchdog_reload(int watchdog, unsigned int reload_value) return; /* Kick watchdog, and clear interrupt pending bit */ - bsp_watchdogs[watchdog].timer->reload = reload_value; - bsp_watchdogs[watchdog].timer->ctrl = - (GPTIMER_TIMER_CTRL_LD | GPTIMER_TIMER_CTRL_EN) | - (bsp_watchdogs[watchdog].timer->ctrl & ~(1<<4)); + timer = bsp_watchdogs[watchdog].timer; + grlib_store_32(&timer->trldval, reload_value); + tctrl = grlib_load_32(&timer->tctrl); + tctrl |= GPTIMER_TCTRL_LD | GPTIMER_TCTRL_EN; + tctrl &= ~GPTIMER_TCTRL_IP; + grlib_store_32(&timer->tctrl, tctrl); } void bsp_watchdog_stop(int watchdog) @@ -79,7 +101,7 @@ void bsp_watchdog_stop(int watchdog) return; /* Stop watchdog timer */ - bsp_watchdogs[watchdog].timer->ctrl = 0; + grlib_store_32(&bsp_watchdogs[watchdog].timer->tctrl, 0); } /* Use watchdog timer to reset system */ |