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| author | Baruch Siach <baruch@tkos.co.il> | 2013-06-17 11:29:43 +0300 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2013-07-08 01:11:37 -0700 |
| commit | e504c4b6076d9ec1caccaac65803fe3fc29afec8 (patch) | |
| tree | 9a068eafb50e22b431cdc2d02590c7a92ae36d70 | |
| parent | ed9dfed62c6c057c1c51295d4373ae55c9284a10 (diff) | |
| download | op-kernel-dev-e504c4b6076d9ec1caccaac65803fe3fc29afec8.zip op-kernel-dev-e504c4b6076d9ec1caccaac65803fe3fc29afec8.tar.gz | |
xtensa: cleanup ccount frequency tracking
Remove unused nsec_per_ccount, and rename ccount_per_jiffy to ccount_preq.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Chris Zankel <chris@zankel.net>
| -rw-r--r-- | arch/xtensa/include/asm/timex.h | 5 | ||||
| -rw-r--r-- | arch/xtensa/kernel/platform.c | 2 | ||||
| -rw-r--r-- | arch/xtensa/kernel/time.c | 7 | ||||
| -rw-r--r-- | arch/xtensa/platforms/xtfpga/setup.c | 3 | ||||
| -rw-r--r-- | arch/xtensa/variants/s6000/delay.c | 3 |
5 files changed, 8 insertions, 12 deletions
diff --git a/arch/xtensa/include/asm/timex.h b/arch/xtensa/include/asm/timex.h index c47989a..69f9017 100644 --- a/arch/xtensa/include/asm/timex.h +++ b/arch/xtensa/include/asm/timex.h @@ -36,9 +36,8 @@ #endif #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT -extern unsigned long ccount_per_jiffy; -extern unsigned long nsec_per_ccount; -#define CCOUNT_PER_JIFFY ccount_per_jiffy +extern unsigned long ccount_freq; +#define CCOUNT_PER_JIFFY (ccount_freq / HZ) #else #define CCOUNT_PER_JIFFY (CONFIG_XTENSA_CPU_CLOCK*(1000000UL/HZ)) #endif diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c index da827cb..1cf0082 100644 --- a/arch/xtensa/kernel/platform.c +++ b/arch/xtensa/kernel/platform.c @@ -41,6 +41,6 @@ _F(void, pcibios_init, (void), { }); _F(void, calibrate_ccount, (void), { pr_err("ERROR: Cannot calibrate cpu frequency! Assuming 10MHz.\n"); - ccount_per_jiffy = 10 * (1000000UL/HZ); + ccount_freq = 10 * 1000000UL; }); #endif diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c index ffb4741..a32bc2e 100644 --- a/arch/xtensa/kernel/time.c +++ b/arch/xtensa/kernel/time.c @@ -28,8 +28,7 @@ #include <asm/platform.h> #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT -unsigned long ccount_per_jiffy; /* per 1/HZ */ -unsigned long nsec_per_ccount; /* nsec per ccount increment */ +unsigned long ccount_freq; /* ccount Hz */ #endif static cycle_t ccount_read(struct clocksource *cs) @@ -57,8 +56,8 @@ void __init time_init(void) #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT printk("Calibrating CPU frequency "); platform_calibrate_ccount(); - printk("%d.%02d MHz\n", (int)ccount_per_jiffy/(1000000/HZ), - (int)(ccount_per_jiffy/(10000/HZ))%100); + printk("%d.%02d MHz\n", (int)ccount_freq/1000000, + (int)(ccount_freq/10000)%100); #endif clocksource_register_hz(&ccount_clocksource, CCOUNT_PER_JIFFY * HZ); diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c index c7ce62f..74bb74f 100644 --- a/arch/xtensa/platforms/xtfpga/setup.c +++ b/arch/xtensa/platforms/xtfpga/setup.c @@ -179,8 +179,7 @@ void __init platform_calibrate_ccount(void) if (!clk_freq) clk_freq = *(long *)XTFPGA_CLKFRQ_VADDR; - ccount_per_jiffy = clk_freq / HZ; - nsec_per_ccount = 1000000000UL / clk_freq; + ccount_freq = clk_freq; } #endif diff --git a/arch/xtensa/variants/s6000/delay.c b/arch/xtensa/variants/s6000/delay.c index 54b2b57..baefd3a 100644 --- a/arch/xtensa/variants/s6000/delay.c +++ b/arch/xtensa/variants/s6000/delay.c @@ -22,6 +22,5 @@ void platform_calibrate_ccount(void) a = b; } while (--i >= 0); b -= a; - nsec_per_ccount = (LOOPS * 10000) / b; - ccount_per_jiffy = b * (100000UL / (LOOPS * HZ)); + ccount_freq = b * (100000UL / LOOPS); } |
