rtc: add RTC_ISA_BASE

Add and use RTC_ISA_BASE define instead of hardcoding 0x70.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20200429140003.7336-7-kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
This commit is contained in:
Gerd Hoffmann 2020-04-29 15:59:54 +02:00 committed by Michael S. Tsirkin
parent a53e581ee8
commit ba480fa626
2 changed files with 3 additions and 3 deletions

View File

@ -908,7 +908,6 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
{
ISADevice *isadev = ISA_DEVICE(dev);
RTCState *s = MC146818_RTC(dev);
int base = 0x70;
s->cmos_data[RTC_REG_A] = 0x26;
s->cmos_data[RTC_REG_B] = 0x02;
@ -951,7 +950,7 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
qemu_register_suspend_notifier(&s->suspend_notifier);
memory_region_init_io(&s->io, OBJECT(s), &cmos_ops, s, "rtc", 2);
isa_register_ioport(isadev, &s->io, base);
isa_register_ioport(isadev, &s->io, RTC_ISA_BASE);
/* register rtc 0x70 port for coalesced_pio */
memory_region_set_flush_coalesced(&s->io);
@ -960,7 +959,7 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
memory_region_add_subregion(&s->io, 0, &s->coalesced_io);
memory_region_add_coalescing(&s->coalesced_io, 0, 1);
qdev_set_legacy_instance_id(dev, base, 3);
qdev_set_legacy_instance_id(dev, RTC_ISA_BASE, 3);
qemu_register_reset(rtc_reset, s);
object_property_add_tm(OBJECT(s), "date", rtc_get_date, NULL);

View File

@ -47,6 +47,7 @@ typedef struct RTCState {
} RTCState;
#define RTC_ISA_IRQ 8
#define RTC_ISA_BASE 0x70
ISADevice *mc146818_rtc_init(ISABus *bus, int base_year,
qemu_irq intercept_irq);