diff options
Diffstat (limited to 'src/pc80/mc146818rtc.c')
| -rw-r--r-- | src/pc80/mc146818rtc.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/pc80/mc146818rtc.c b/src/pc80/mc146818rtc.c index cc37f04f85..e182955e65 100644 --- a/src/pc80/mc146818rtc.c +++ b/src/pc80/mc146818rtc.c @@ -127,6 +127,8 @@ void rtc_init(int invalid) int cmos_invalid, checksum_invalid; printk_debug("RTC Init\n"); + +#if HAVE_OPTION_TABLE /* See if there has been a CMOS power problem. */ x = CMOS_READ(RTC_VALID); cmos_invalid = !(x & RTC_VRT); @@ -160,19 +162,25 @@ void rtc_init(int invalid) } #endif } +#endif + + /* Setup the real time clock */ + CMOS_WRITE(RTC_CONTROL_DEFAULT, RTC_CONTROL); + /* Setup the frequency it operates at */ + CMOS_WRITE(RTC_FREQ_SELECT_DEFAULT, RTC_FREQ_SELECT); + +#if HAVE_OPTION_TABLE /* See if there is a LB CMOS checksum error */ checksum_invalid = !rtc_checksum_valid(LB_CKS_RANGE_START, LB_CKS_RANGE_END,LB_CKS_LOC); if(checksum_invalid) printk_debug("Invalid CMOS LB checksum\n"); - /* Setup the real time clock */ - CMOS_WRITE(RTC_CONTROL_DEFAULT, RTC_CONTROL); - /* Setup the frequency it operates at */ - CMOS_WRITE(RTC_FREQ_SELECT_DEFAULT, RTC_FREQ_SELECT); /* Make certain we have a valid checksum */ rtc_set_checksum(PC_CKS_RANGE_START, PC_CKS_RANGE_END,PC_CKS_LOC); +#endif + /* Clear any pending interrupts */ (void) CMOS_READ(RTC_INTR_FLAGS); } |