3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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/mipsregs.h>
28 * timer without interrupts
39 void reset_timer(void)
44 ulong get_timer(ulong base)
46 return read_c0_count() - base;
49 void set_timer(ulong t)
54 void udelay(unsigned long usec)
58 tmo = read_c0_count() + (usec * (CFG_MIPS_TIMER_FREQ / 1000000));
59 while ((tmo - read_c0_count()) < 0x7fffffff)
64 * This function is derived from PowerPC code (read timebase as long long).
65 * On MIPS it just returns the timer value.
67 unsigned long long get_ticks(void)
69 return read_c0_count();
73 * This function is derived from PowerPC code (timebase clock frequency).
74 * On MIPS it returns the number of timer ticks per second.