system.h

来自「这是一个SIGMA方案的PMP播放器的UCLINUX程序,可播放DVD,VCD,」· C头文件 代码 · 共 57 行

/*
 *  linux/include/asm-arm/arch-integrator/system.h
 *
 *  Copyright (C) 1999 ARM Limited
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef __ASM_ARCH_SYSTEM_H
#define __ASM_ARCH_SYSTEM_H

#include <asm/arch/hardware.h>

static void arch_idle(void)
{
	/*
	 * This should do all the clock switching
	 * and wait for interrupt tricks
	 */
	cpu_do_idle(0);
}

static inline void arch_reset(char mode)
{
	/*
	 * To reset, we set the reset all bit of reset register
	 */
	unsigned long teststat= __raw_readl(JASPER_SYSCTRL_BASE +SYSCTRL_TESTSTAT);
	__raw_writel(teststat+1, JASPER_SYSCTRL_BASE +SYSCTRL_TESTSTAT);
	__raw_writel(0, JASPER_SYSCTRL_BASE + SYSCTRL_CPUCFG); // remap ROM at 0
	// reset everything except ALL and MAC
	__raw_writel(0x7FFFFFEF, JASPER_SYSCTRL_BASE+SYSCTRL_RSTCTL);

	//rev A hack...RESET_CPU doesnt work
	asm("mov pc, #0\n"
		"nop\n"
		"nop\n"
		"nop\n"
		"nop\n"
		"nop\n");

}

#endif