void
autoconf(void)
{
/* make IO area mappable from user applications */
(void)pmap_add_physical_memory(powermac_info.io_base_phys,
(powermac_info.io_base_phys +
powermac_info.io_size),
FALSE,
PTE_WIMG_IO);
/* remap IO area into virtual space so that devices can
* set up their pointers to a virtual mapping
*/
powermac_info.io_base_virt = io_map(powermac_info.io_base_phys,
powermac_info.io_size);
powermac_io_init(powermac_info.io_base_virt);
/* Make sure that interrupts are correctly initialized before
* we run the generic code. setting remains at splhigh. We must
* do this AFTER the io mappings have been initialised since
* interrupts may use registers in the io space
*/
interrupt_init();
#if NCPUS >1
/*
* Probe the MP hardware now that we have some memory
*/
mp_probe_cpus();
#endif /* NCPUS > 1 */
/* probeio needs interrupts enabled
* interrupts get switched on for the first time here.
*/
spllo();
probeio();
/* We no longer need BATs to map I/O */
if (PROCESSOR_VERSION != PROCESSOR_VERSION_601) {
mtdbatu(3,BAT_INVALID); mtdbatl(3,BAT_INVALID);
mtdbatu(2,BAT_INVALID); mtdbatl(2,BAT_INVALID);
}
return;
}
/*
* Find devices. The system is alive.
*/
void machine_init(void)
{
/*
* Initialize the console.
*/
cninit();
/*
* Set up to use floating point.
*/
init_fpu();
#ifdef MACH_HYP
hyp_init();
#else /* MACH_HYP */
#ifdef LINUX_DEV
/*
* Initialize Linux drivers.
*/
linux_init();
#endif
/*
* Find the devices
*/
probeio();
#endif /* MACH_HYP */
/*
* Get the time
*/
inittodr();
#ifndef MACH_HYP
/*
* Tell the BIOS not to clear and test memory.
*/
*(unsigned short *)phystokv(0x472) = 0x1234;
#endif /* MACH_HYP */
#if VM_MIN_KERNEL_ADDRESS == 0
/*
* Unmap page 0 to trap NULL references.
*
* Note that this breaks accessing some BIOS areas stored there.
*/
pmap_unmap_page_zero();
#endif
}
/*
* Find devices. The system is alive.
*/
void machine_init()
{
/*
* Initialize the console.
*/
cninit();
/*
* Set up to use floating point.
*/
init_fpu();
#ifdef LINUX_DEV
/*
* Initialize Linux drivers.
*/
linux_init();
#endif
/*
* Find the devices
*/
probeio();
/*
* Get the time
*/
inittodr();
/*
* Tell the BIOS not to clear and test memory.
*/
*(unsigned short *)phystokv(0x472) = 0x1234;
/*
* Unmap page 0 to trap NULL references.
*/
pmap_unmap_page_zero();
}
/*
* Find devices. The system is alive.
*/
void machine_init()
{
/*
* Set up to use floating point.
*/
init_fpu();
/*
* Find the devices
*/
probeio();
/*
* Find the root device
*/
get_root_device();
/*
* Get the time
*/
inittodr();
}
