2 * (C) Copyright 2007 Michal Simek
4 * Michal SIMEK <monstr@monstr.eu>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <asm/microblaze_timer.h>
27 #include <asm/microblaze_intc.h>
29 volatile int timestamp
= 0;
31 void reset_timer (void)
36 #ifdef CONFIG_SYS_TIMER_0
37 ulong
get_timer (ulong base
)
39 return (timestamp
- base
);
42 ulong
get_timer (ulong base
)
44 return (timestamp
++ - base
);
48 void set_timer (ulong t
)
53 #ifdef CONFIG_SYS_INTC_0
54 #ifdef CONFIG_SYS_TIMER_0
55 microblaze_timer_t
*tmr
= (microblaze_timer_t
*) (CONFIG_SYS_TIMER_0_ADDR
);
57 void timer_isr (void *arg
)
60 tmr
->control
= tmr
->control
| TIMER_INTERRUPT
;
63 void timer_init (void)
65 tmr
->loadreg
= CONFIG_SYS_TIMER_0_PRELOAD
;
66 tmr
->control
= TIMER_INTERRUPT
| TIMER_RESET
;
68 TIMER_ENABLE
| TIMER_ENABLE_INTR
| TIMER_RELOAD
| TIMER_DOWN_COUNT
;
70 install_interrupt_handler (CONFIG_SYS_TIMER_0_IRQ
, timer_isr
, (void *)tmr
);