예제 #1
0
/*
 * Determine mass storage and memory configuration for a machine.
 * We get the PROM's root device and make sure we understand it, then
 * attach it as `mainbus0'.  We also set up to handle the PROM `sync'
 * command.
 */
void
cpu_configure(void)
{
	
	if (CPU_ISSUN4V)
		mdesc_init();
	
	bool userconf = (boothowto & RB_USERCONF) != 0;

	/* fetch boot device settings */
	get_bootpath_from_prom();
	if (((boothowto & RB_USERCONF) != 0) && !userconf)
		/*
		 * Old bootloaders do not pass boothowto, and MI code
		 * has already handled userconfig before we get here
		 * and finally fetch the right options. So if we missed
		 * it, just do it here.
 		 */
		userconf_prompt();

	/* block clock interrupts and anything below */
	splclock();
	/* Enable device interrupts */
        setpstate(getpstate()|PSTATE_IE);

	if (config_rootfound("mainbus", NULL) == NULL)
		panic("mainbus not configured");

	/* Enable device interrupts */
        setpstate(getpstate()|PSTATE_IE);

	(void)spl0();
}
예제 #2
0
/*
 * Determine mass storage and memory configuration for a machine.
 * We get the PROM's root device and make sure we understand it, then
 * attach it as `mainbus0'.  We also set up to handle the PROM `sync'
 * command.
 */
void
cpu_configure(void)
{

	/* fetch boot device settings */
	get_bootpath_from_prom();

	/* block clock interrupts and anything below */
	splclock();
	/* Enable device interrupts */
        setpstate(getpstate()|PSTATE_IE);

	if (config_rootfound("mainbus", NULL) == NULL)
		panic("mainbus not configured");

	/* Enable device interrupts */
        setpstate(getpstate()|PSTATE_IE);

	(void)spl0();
}