/*
 * linux/include/asm-arm/arch-ebsa285/system.h
 *
 * Copyright (c) 1996-1999 Russell King.
 */
#include <asm/dec21285.h>
#include <asm/io.h>
#include <asm/hardware.h>
#include <asm/leds.h>

#define arch_do_idle()		cpu_do_idle()
#define arch_power_off()	do { } while (0)

extern __inline__ void arch_reset(char mode)
{
	if (mode == 's') {
		__asm__ volatile (
		"mcr	p15, 0, %0, c1, c0, 0	@ MMU off
		 mov	pc, #0x41000000		@ jump to ROM" : :
		"r" (cpu_reset()) : "cc");
	} else {
		if (machine_is_netwinder()) {
			/* open up the SuperIO chip
			 */
			outb(0x87, 0x370);
			outb(0x87, 0x370);

			/* aux function group 1 (logical device 7)
			 */
			outb(0x07, 0x370);
			outb(0x07, 0x371);

			/* set GP16 for WD-TIMER output
			 */
			outb(0xe6, 0x370);
			outb(0x00, 0x371);

			/* set a RED LED and toggle WD_TIMER for rebooting
			 */
			outb(0xc4, 0x338);
		} else {
			/* To reboot, we set up the 21285 watchdog and
			 * enable it.  We then wait for it to timeout.
			 */
			*CSR_TIMER4_LOAD = 0x8000;
			*CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE |
					   TIMER_CNTL_AUTORELOAD |
					   TIMER_CNTL_DIV16;
			*CSR_SA110_CNTL |= 1 << 13;
		}
	}
}