/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
unsigned int compare = 0;
mips_set_sr( 0x7f00 ); /* all interrupts unmasked but globally off */
/* depend on the IRC to take care of things */
__asm__ volatile ("mtc0 %0, $11\n" :: "r" (compare));
mips_install_isr_entries();
}
void bsp_reset(void)
{
void (*reset_func)(void);
reset_func = (void *)0xbfc00000;
mips_set_sr( 0x00200000 ); /* all interrupts off, boot exception vectors */
/* Try to restart bootloader */
reset_func();
}
int mips_default_isr( int vector )
{
unsigned int sr, sr2;
unsigned int cause;
mips_get_sr( sr );
mips_get_cause( cause );
sr2 = sr & ~0xffff;
mips_set_sr(sr2);
printk( "Unhandled isr exception: vector 0x%02x, cause 0x%08X, sr 0x%08X\n", vector, cause, sr );
rtems_fatal_error_occurred(1);
return 0;
}
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
/* uint32_t board_ID = 0x420; */
static int j = 1;
int pci_init_retval;
/*
* Note: This is the value that works for qemu, and it was
* unable to be validated on the actual hardware.
*/
mips_set_sr( 0x04100000 );
bsp_interrupt_initialize();
/*
* XXX need to figure out a real value. :)
* This works for the qemu simulation, but timeing may
* be off for the actual hardware.
*/
bsp_clicks_per_microsecond = 100;
#if 1
while ( j != 1 ) {
int i;
printk (".");
for (i=0; i<1000; i++);
}
#endif
/*
* init PCI Bios interface...
*/
pci_init_retval = pci_initialize();
if (pci_init_retval != PCIB_ERR_SUCCESS) {
printk("PCI bus: could not initialize PCI BIOS interface\n");
}
BSP_i8259s_init();
}