diff options
Diffstat (limited to 'hw/mc146818rtc.c')
| -rw-r--r-- | hw/mc146818rtc.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c index 888b85a9d6..98a2273f80 100644 --- a/hw/mc146818rtc.c +++ b/hw/mc146818rtc.c @@ -568,6 +568,22 @@ static int rtc_load_td(QEMUFile *f, void *opaque, int version_id) } #endif +static void rtc_reset(void *opaque) +{ + RTCState *s = opaque; + + /* clear PIE,AIE,SQWE on reset */ + s->cmos_data[RTC_REG_B] &= ~((1<<6) | (1<<5) | (1<<3)); + + /* clear UF,IRQF,PF,AF on reset */ + s->cmos_data[RTC_REG_C] &= ~((1<<4) | (1<<7) | (1<<6) | (1<<5)); + +#ifdef TARGET_I386 + if (rtc_td_hack) + s->irq_coalesced = 0; +#endif +} + RTCState *rtc_init_sqw(int base, qemu_irq irq, qemu_irq sqw_irq, int base_year) { RTCState *s; @@ -606,6 +622,8 @@ RTCState *rtc_init_sqw(int base, qemu_irq irq, qemu_irq sqw_irq, int base_year) if (rtc_td_hack) register_savevm("mc146818rtc-td", base, 1, rtc_save_td, rtc_load_td, s); #endif + qemu_register_reset(rtc_reset, 0, s); + return s; } @@ -721,5 +739,6 @@ RTCState *rtc_mm_init(target_phys_addr_t base, int it_shift, qemu_irq irq, if (rtc_td_hack) register_savevm("mc146818rtc-td", base, 1, rtc_save_td, rtc_load_td, s); #endif + qemu_register_reset(rtc_reset, 0, s); return s; } |