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| author | Ingo Molnar <mingo@kernel.org> | 2015-08-25 09:59:19 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-25 09:59:19 +0200 |
| commit | 8d58b66ed2b000f27658c88a4ed70e8042e86a58 (patch) | |
| tree | 5bae2c74f932b5d863f72cb698a6f71260340b26 /arch/nios2/kernel/time.c | |
| parent | 13fe86f465b72fc9328d4f5ebc33223c011852ae (diff) | |
| parent | c13dcf9f2d6f5f06ef1bf79ec456df614c5e058b (diff) | |
| download | linux-8d58b66ed2b000f27658c88a4ed70e8042e86a58.tar.bz2 | |
Merge tag 'v4.2-rc8' into x86/mm, before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/nios2/kernel/time.c')
| -rw-r--r-- | arch/nios2/kernel/time.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c index 7f4547418ee1..9e3cc8a40ee9 100644 --- a/arch/nios2/kernel/time.c +++ b/arch/nios2/kernel/time.c @@ -8,6 +8,7 @@ * for more details. */ +#include <linux/export.h> #include <linux/interrupt.h> #include <linux/clockchips.h> #include <linux/clocksource.h> @@ -18,7 +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 @@ -106,6 +109,7 @@ cycles_t get_cycles(void) { return nios2_timer_read(&nios2_cs.cs); } +EXPORT_SYMBOL(get_cycles); static void nios2_timer_start(struct nios2_timer *timer) { @@ -302,7 +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); |