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| author | Paul Mackerras <paulus@samba.org> | 2006-03-29 04:24:50 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-03-29 04:24:50 +0200 |
| commit | bac30d1a78d0f11c613968fc8b351a91ed465386 (patch) | |
| tree | e52f3c876522a2f6047a6ec1c27df2e8a79486b8 /arch/arm/mach-footbridge/time.c | |
| parent | [PATCH] powerpc: Kill _machine and hard-coded platform numbers (diff) | |
| parent | Merge master.kernel.org:/home/rmk/linux-2.6-arm (diff) | |
| download | linux-bac30d1a78d0f11c613968fc8b351a91ed465386.tar.xz linux-bac30d1a78d0f11c613968fc8b351a91ed465386.zip | |
Merge ../linux-2.6
Diffstat (limited to 'arch/arm/mach-footbridge/time.c')
| -rw-r--r-- | arch/arm/mach-footbridge/time.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/arch/arm/mach-footbridge/time.c b/arch/arm/mach-footbridge/time.c index 2c64a0b0502e..5d02e95dede3 100644 --- a/arch/arm/mach-footbridge/time.c +++ b/arch/arm/mach-footbridge/time.c @@ -34,27 +34,12 @@ static int rtc_base; static unsigned long __init get_isa_cmos_time(void) { unsigned int year, mon, day, hour, min, sec; - int i; // check to see if the RTC makes sense..... if ((CMOS_READ(RTC_VALID) & RTC_VRT) == 0) return mktime(1970, 1, 1, 0, 0, 0); - /* The Linux interpretation of the CMOS clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - /* read RTC exactly on falling edge of update flag */ - for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ - if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) - break; - - for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */ - if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)) - break; - - do { /* Isn't this overkill ? UIP above should guarantee consistency */ + do { sec = CMOS_READ(RTC_SECONDS); min = CMOS_READ(RTC_MINUTES); hour = CMOS_READ(RTC_HOURS); |