]>
git.ipfire.org Git - people/ms/u-boot.git/blob - lib_sh/time.c
3d33918f28f8d7f1d537b638b77e4ccadfb8bce4
3 * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/processer.h>
27 static void tmu_timer_start (unsigned int timer
)
32 *((volatile unsigned char *) TSTR0
) |= (1 << timer
);
37 *(volatile u16
*)TCR0
= 0;
43 unsigned long long get_ticks (void)
45 return (0 - *((volatile unsigned int *) TCNT0
));
48 unsigned long get_timer (unsigned long base
)
50 return ((0 - *((volatile unsigned int *) TCNT0
)) - base
);
53 void set_timer (unsigned long t
)
55 *((volatile unsigned int *) TCNT0
) = (0 - t
);
58 void reset_timer (void)
63 void udelay (unsigned long usec
)
65 unsigned int start
= get_timer (0);
66 unsigned int end
= start
+ (usec
* ((CFG_HZ
+ 500000) / 1000000));
68 while (get_timer (0) < end
)
72 unsigned long get_tbclk (void)