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xtensa: fix !CONFIG_XTENSA_CALIBRATE_CCOUNT build failure

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Commits 925f5532 (xtensa: ccount based clockevent implementation) and e3f43291
(xtensa: ccount based sched_clock) introduced users of ccount_freq. This
variable doesn't exist when CONFIG_XTENSA_CALIBRATE_CCOUNT is disabled. Add
ccount_freq definition in this case.

Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
This commit is contained in:
Baruch Siach 2013-07-15 07:03:38 +03:00 committed by Chris Zankel
parent 123f15e669
commit fedc21dce8
2 changed files with 2 additions and 7 deletions
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5
arch/xtensa/include/asm/timex.h
View file

@ -35,13 +35,8 @@
# error "Bad timer number for Linux configurations!"
#endif
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
extern unsigned long ccount_freq;
#define CCOUNT_PER_JIFFY (ccount_freq / HZ)
#else
#define CCOUNT_PER_JIFFY (CONFIG_XTENSA_CPU_CLOCK*(1000000UL/HZ))
#endif
typedef unsigned long long cycles_t;

4
arch/xtensa/kernel/time.c
View file

@ -29,9 +29,7 @@
#include <asm/timex.h>
#include <asm/platform.h>
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
unsigned long ccount_freq; /* ccount Hz */
#endif
static cycle_t ccount_read(struct clocksource *cs)
{
@ -129,6 +127,8 @@ void __init time_init(void)
platform_calibrate_ccount();
printk("%d.%02d MHz\n", (int)ccount_freq/1000000,
(int)(ccount_freq/10000)%100);
#else
ccount_freq = CONFIG_XTENSA_CPU_CLOCK*1000000UL;
#endif
clocksource_register_hz(&ccount_clocksource, CCOUNT_PER_JIFFY * HZ);