diff options
Diffstat (limited to 'hw/timer/mc146818rtc.c')
| -rw-r--r-- | hw/timer/mc146818rtc.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c index 7230a6e4fa..b0116381c0 100644 --- a/hw/timer/mc146818rtc.c +++ b/hw/timer/mc146818rtc.c @@ -70,7 +70,6 @@ typedef struct RTCState { uint64_t last_update; int64_t offset; qemu_irq irq; - qemu_irq sqw_irq; int it_shift; /* periodic timer */ QEMUTimer *periodic_timer; @@ -151,8 +150,7 @@ static void periodic_timer_update(RTCState *s, int64_t current_time) period_code = s->cmos_data[RTC_REG_A] & 0x0f; if (period_code != 0 - && ((s->cmos_data[RTC_REG_B] & REG_B_PIE) - || ((s->cmos_data[RTC_REG_B] & REG_B_SQWE) && s->sqw_irq))) { + && (s->cmos_data[RTC_REG_B] & REG_B_PIE)) { if (period_code <= 2) period_code += 7; /* period in 32 Khz cycles */ @@ -202,11 +200,6 @@ static void rtc_periodic_timer(void *opaque) #endif qemu_irq_raise(s->irq); } - if (s->cmos_data[RTC_REG_B] & REG_B_SQWE) { - /* Not square wave at all but we don't want 2048Hz interrupts! - Must be seen as a pulse. */ - qemu_irq_raise(s->sqw_irq); - } } /* handle update-ended timer */ |