diff options
author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-06-12 10:02:03 -0500 |
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committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-06-12 10:02:03 -0500 |
commit | 82681a318f9f028ea64e61f24bbd9ac535531921 (patch) | |
tree | 529b6a5b4fd040fb54b7672b1a224ebd47445876 /arch/sh/kernel/time.c | |
parent | 3860c97bd60a4525bb62eb90e3e7d2f02662ac59 (diff) | |
parent | 8ebf975608aaebd7feb33d77f07ba21a6380e086 (diff) |
[SCSI] Merge branch 'linus'
Conflicts:
drivers/message/fusion/mptsas.c
fixed up conflict between req->data_len accessors and mptsas driver updates.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'arch/sh/kernel/time.c')
-rw-r--r-- | arch/sh/kernel/time.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c new file mode 100644 index 00000000000..2edde32c764 --- /dev/null +++ b/arch/sh/kernel/time.c @@ -0,0 +1,125 @@ +/* + * arch/sh/kernel/time.c + * + * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka + * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> + * Copyright (C) 2002 - 2009 Paul Mundt + * Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/profile.h> +#include <linux/timex.h> +#include <linux/sched.h> +#include <linux/clockchips.h> +#include <linux/platform_device.h> +#include <linux/smp.h> +#include <linux/rtc.h> +#include <asm/clock.h> +#include <asm/rtc.h> + +/* Dummy RTC ops */ +static void null_rtc_get_time(struct timespec *tv) +{ + tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0); + tv->tv_nsec = 0; +} + +static int null_rtc_set_time(const time_t secs) +{ + return 0; +} + +void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time; +int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time; + +#ifdef CONFIG_GENERIC_CMOS_UPDATE +unsigned long read_persistent_clock(void) +{ + struct timespec tv; + rtc_sh_get_time(&tv); + return tv.tv_sec; +} + +int update_persistent_clock(struct timespec now) +{ + return rtc_sh_set_time(now.tv_sec); +} +#endif + +unsigned int get_rtc_time(struct rtc_time *tm) +{ + if (rtc_sh_get_time != null_rtc_get_time) { + struct timespec tv; + + rtc_sh_get_time(&tv); + rtc_time_to_tm(tv.tv_sec, tm); + } + + return RTC_24H; +} +EXPORT_SYMBOL(get_rtc_time); + +int set_rtc_time(struct rtc_time *tm) +{ + unsigned long secs; + + rtc_tm_to_time(tm, &secs); + return rtc_sh_set_time(secs); +} +EXPORT_SYMBOL(set_rtc_time); + +static int __init rtc_generic_init(void) +{ + struct platform_device *pdev; + + if (rtc_sh_get_time == null_rtc_get_time) + return -ENODEV; + + pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} +module_init(rtc_generic_init); + +void (*board_time_init)(void); + +unsigned long long sched_clock(void) +{ + return (jiffies_64 - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ); +} + +static void __init sh_late_time_init(void) +{ + /* + * Make sure all compiled-in early timers register themselves. + * Run probe() for one "earlytimer" device. + */ + early_platform_driver_register_all("earlytimer"); + early_platform_driver_probe("earlytimer", 1, 0); +} + +void __init time_init(void) +{ + if (board_time_init) + board_time_init(); + + clk_init(); + + rtc_sh_get_time(&xtime); + set_normalized_timespec(&wall_to_monotonic, + -xtime.tv_sec, -xtime.tv_nsec); + +#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST + local_timer_setup(smp_processor_id()); +#endif + + late_time_init = sh_late_time_init; +} |