提交 31351f73 编写于 作者: L Linus Torvalds

Merge tag 'nios2-v4.2' of git://git.rocketboards.org/linux-socfpga-next

Pull nios2 update from Ley Foon Tan:
 "Check number of timer instances"

* tag 'nios2-v4.2' of git://git.rocketboards.org/linux-socfpga-next:
  nios2: check number of timer instances
......@@ -19,7 +19,9 @@
#include <linux/io.h>
#include <linux/slab.h>
#define ALTERA_TIMER_STATUS_REG 0
#define ALTR_TIMER_COMPATIBLE "altr,timer-1.0"
#define ALTERA_TIMER_STATUS_REG 0
#define ALTERA_TIMER_CONTROL_REG 4
#define ALTERA_TIMER_PERIODL_REG 8
#define ALTERA_TIMER_PERIODH_REG 12
......@@ -304,7 +306,16 @@ void read_persistent_clock(struct timespec *ts)
void __init time_init(void)
{
struct device_node *np;
int count = 0;
for_each_compatible_node(np, NULL, ALTR_TIMER_COMPATIBLE)
count++;
if (count < 2)
panic("%d timer is found, it needs 2 timers in system\n", count);
clocksource_of_init();
}
CLOCKSOURCE_OF_DECLARE(nios2_timer, "altr,timer-1.0", nios2_time_init);
CLOCKSOURCE_OF_DECLARE(nios2_timer, ALTR_TIMER_COMPATIBLE, nios2_time_init);
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