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mc146818rtc: Move Xbox RTC init pattern to reset handler

This commit is contained in:
Matt Borgerson 2025-01-06 04:08:59 -07:00
parent 75ce25c9b5
commit 24c24e030d
2 changed files with 14 additions and 14 deletions
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14
hw/rtc/mc146818rtc.c
View File

@ -1006,6 +1006,20 @@ static void rtc_reset_enter(Object *obj, ResetType type)
s->irq_coalesced = 0;
s->irq_reinject_on_ack_count = 0;
}
// xbox bios wants this bit pattern set to mark the data as valid
#ifdef XBOX
uint8_t bits = 0x55;
for (int i = 0x10; i < 0x70; i++) {
mc146818rtc_set_cmos_data(s, i, bits);
bits = ~bits;
}
bits = 0x55;
for (int i = 0x80; i < 0x100; i++) {
mc146818rtc_set_cmos_data(s, i, bits);
bits = ~bits;
}
#endif
}
static void rtc_reset_hold(Object *obj, ResetType type)

14
hw/xbox/xbox.c
View File

@ -217,8 +217,6 @@ void xbox_init_common(MachineState *machine,
MemoryRegion *system_memory = get_system_memory();
// MemoryRegion *system_io = get_system_io();
int i;
PCIBus *pci_bus;
ISABus *isa_bus;
@ -298,18 +296,6 @@ void xbox_init_common(MachineState *machine,
// idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
// idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
// xbox bios wants this bit pattern set to mark the data as valid
uint8_t bits = 0x55;
for (i = 0x10; i < 0x70; i++) {
mc146818rtc_set_cmos_data(rtc_state, i, bits);
bits = ~bits;
}
bits = 0x55;
for (i = 0x80; i < 0x100; i++) {
mc146818rtc_set_cmos_data(rtc_state, i, bits);
bits = ~bits;
}
/* smbus devices */
smbus_xbox_smc_init(smbus, 0x10);