diff options
Diffstat (limited to 'arch/xtensa/kernel')
-rw-r--r-- | arch/xtensa/kernel/platform.c | 2 | ||||
-rw-r--r-- | arch/xtensa/kernel/time.c | 29 |
2 files changed, 1 insertions, 30 deletions
diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c index 69675f216062..1b91a97f1d84 100644 --- a/arch/xtensa/kernel/platform.c +++ b/arch/xtensa/kernel/platform.c | |||
@@ -36,8 +36,6 @@ _F(void, power_off, (void), { while(1); }); | |||
36 | _F(void, idle, (void), { __asm__ __volatile__ ("waiti 0" ::: "memory"); }); | 36 | _F(void, idle, (void), { __asm__ __volatile__ ("waiti 0" ::: "memory"); }); |
37 | _F(void, heartbeat, (void), { }); | 37 | _F(void, heartbeat, (void), { }); |
38 | _F(int, pcibios_fixup, (void), { return 0; }); | 38 | _F(int, pcibios_fixup, (void), { return 0; }); |
39 | _F(int, get_rtc_time, (time_t* t), { return 0; }); | ||
40 | _F(int, set_rtc_time, (time_t t), { return 0; }); | ||
41 | 39 | ||
42 | #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT | 40 | #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT |
43 | _F(void, calibrate_ccount, (void), | 41 | _F(void, calibrate_ccount, (void), |
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c index 86bfe83718e9..db14a3d88db7 100644 --- a/arch/xtensa/kernel/time.c +++ b/arch/xtensa/kernel/time.c | |||
@@ -14,7 +14,6 @@ | |||
14 | 14 | ||
15 | #include <linux/errno.h> | 15 | #include <linux/errno.h> |
16 | #include <linux/time.h> | 16 | #include <linux/time.h> |
17 | #include <linux/timex.h> | ||
18 | #include <linux/interrupt.h> | 17 | #include <linux/interrupt.h> |
19 | #include <linux/module.h> | 18 | #include <linux/module.h> |
20 | #include <linux/init.h> | 19 | #include <linux/init.h> |
@@ -25,18 +24,11 @@ | |||
25 | #include <asm/timex.h> | 24 | #include <asm/timex.h> |
26 | #include <asm/platform.h> | 25 | #include <asm/platform.h> |
27 | 26 | ||
28 | |||
29 | DEFINE_SPINLOCK(rtc_lock); | ||
30 | EXPORT_SYMBOL(rtc_lock); | ||
31 | |||
32 | |||
33 | #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT | 27 | #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT |
34 | unsigned long ccount_per_jiffy; /* per 1/HZ */ | 28 | unsigned long ccount_per_jiffy; /* per 1/HZ */ |
35 | unsigned long nsec_per_ccount; /* nsec per ccount increment */ | 29 | unsigned long nsec_per_ccount; /* nsec per ccount increment */ |
36 | #endif | 30 | #endif |
37 | 31 | ||
38 | static long last_rtc_update = 0; | ||
39 | |||
40 | static irqreturn_t timer_interrupt(int irq, void *dev_id); | 32 | static irqreturn_t timer_interrupt(int irq, void *dev_id); |
41 | static struct irqaction timer_irqaction = { | 33 | static struct irqaction timer_irqaction = { |
42 | .handler = timer_interrupt, | 34 | .handler = timer_interrupt, |
@@ -46,8 +38,6 @@ static struct irqaction timer_irqaction = { | |||
46 | 38 | ||
47 | void __init time_init(void) | 39 | void __init time_init(void) |
48 | { | 40 | { |
49 | time_t sec_o, sec_n = 0; | ||
50 | |||
51 | /* The platform must provide a function to calibrate the processor | 41 | /* The platform must provide a function to calibrate the processor |
52 | * speed for the CALIBRATE. | 42 | * speed for the CALIBRATE. |
53 | */ | 43 | */ |
@@ -59,15 +49,8 @@ void __init time_init(void) | |||
59 | (int)(ccount_per_jiffy/(10000/HZ))%100); | 49 | (int)(ccount_per_jiffy/(10000/HZ))%100); |
60 | #endif | 50 | #endif |
61 | 51 | ||
62 | /* Set time from RTC (if provided) */ | ||
63 | |||
64 | if (platform_get_rtc_time(&sec_o) == 0) | ||
65 | while (platform_get_rtc_time(&sec_n)) | ||
66 | if (sec_o != sec_n) | ||
67 | break; | ||
68 | |||
69 | xtime.tv_nsec = 0; | 52 | xtime.tv_nsec = 0; |
70 | last_rtc_update = xtime.tv_sec = sec_n; | 53 | xtime.tv_sec = read_persistent_clock(); |
71 | 54 | ||
72 | set_normalized_timespec(&wall_to_monotonic, | 55 | set_normalized_timespec(&wall_to_monotonic, |
73 | -xtime.tv_sec, -xtime.tv_nsec); | 56 | -xtime.tv_sec, -xtime.tv_nsec); |
@@ -169,16 +152,6 @@ again: | |||
169 | next += CCOUNT_PER_JIFFY; | 152 | next += CCOUNT_PER_JIFFY; |
170 | set_linux_timer(next); | 153 | set_linux_timer(next); |
171 | 154 | ||
172 | if (ntp_synced() && | ||
173 | xtime.tv_sec - last_rtc_update >= 659 && | ||
174 | abs((xtime.tv_nsec/1000)-(1000000-1000000/HZ))<5000000/HZ) { | ||
175 | |||
176 | if (platform_set_rtc_time(xtime.tv_sec+1) == 0) | ||
177 | last_rtc_update = xtime.tv_sec+1; | ||
178 | else | ||
179 | /* Do it again in 60 s */ | ||
180 | last_rtc_update += 60; | ||
181 | } | ||
182 | write_sequnlock(&xtime_lock); | 155 | write_sequnlock(&xtime_lock); |
183 | } | 156 | } |
184 | 157 | ||