system.h

ARM S3C2410 linux2.4 内核源码

/*
 * linux/include/asm-arm/arch-pxa/system.h
 *
 * Author:	Nicolas Pitre
 * Created:	Jun 15, 2001
 * Copyright:	MontaVista Software Inc.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include "hardware.h"

static inline void arch_idle(void)
{
	if (!hlt_counter) {
		int flags;
		local_irq_save(flags);
		if(!current->need_resched)
			cpu_do_idle(0);
		local_irq_restore(flags);
	}
}


static inline void arch_reset(char mode)
{
	if (mode == 's') {
		/* Jump into ROM at address 0 */
		cpu_reset(0);
	} else {
		/* Initialize the watchdog and let it fire */
		OWER = OWER_WME;
		OSSR = OSSR_M3;
		OSMR3 = OSCR + 36864;	/* ... in 10 ms */
	}
}