/*
* Loader main routine
*
* We assume that the following machine state has
* been already set before this routine.
* - CPU is initialized.
* - DRAM is configured.
* - Loader BSS section is filled with 0.
* - Loader stack is configured.
* - All interrupts are disabled.
*/
int
main(void)
{
entry_t entry;
memset(bootinfo, 0, BOOTINFOSZ);
/*
* Initialize debug port.
*/
debug_init();
DPRINTF(("Prex Boot Loader\n"));
/*
* Do platform dependent initialization.
*/
startup();
/*
* Show splash screen.
*/
splash();
/*
* Load OS modules to appropriate locations.
*/
load_os();
/*
* Dump boot infomation for debug.
*/
dump_bootinfo();
/*
* Launch kernel.
*/
entry = (entry_t)kvtop(bootinfo->kernel.entry);
DPRINTF(("Entering kernel (at 0x%lx) ...\n\n", (long)entry));
(*entry)();
panic("Oops!");
/* NOTREACHED */
return 0;
}
/*
* C entry point
*/
void
loader_main(void)
{
paddr_t kernel_entry;
/*
* Initialize data.
*/
memset(bootinfo, 0, BOOTINFO_SIZE);
load_base = 0;
load_start = 0;
nr_img = 0;
/*
* Setup minimum hardware for boot (may include machine_putc()).
*/
machine_setup();
DPRINTF(("Prex Boot Loader V1.00\n"));
/*
* Load program image.
*/
setup_image();
#if defined(DEBUG) && defined(DEBUG_BOOTINFO)
dump_bootinfo();
#endif
/*
* Jump to the kernel entry point
* via machine-dependent code.
*/
kernel_entry = (paddr_t)phys_to_virt(bootinfo->kernel.entry);
DPRINTF(("kernel_entry=%x\n", kernel_entry));
DPRINTF(("Entering kernel...\n\n"));
start_kernel(kernel_entry);
/* NOTREACHED */
}
