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/*
* 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 <asm/processor.h>
#define WDT_BASE WTCNT
static unsigned char cnt_read (void){
return *((volatile unsigned char *)(WDT_BASE + 0x00));
}
static unsigned char csr_read (void){
return *((volatile unsigned char *)(WDT_BASE + 0x04));
}
static void cnt_write (unsigned char value){
while (csr_read() & (1 << 5)) {
/* delay */
}
*((volatile unsigned short *)(WDT_BASE + 0x00))
= ((unsigned short) value) | 0x5A00;
}
static void csr_write (unsigned char value){
*((volatile unsigned short *)(WDT_BASE + 0x04))
= ((unsigned short) value) | 0xA500;
}
int watchdog_init (void){ return 0; }
void reset_cpu (unsigned long ignored)
{
while(1);
}
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