config.c

linux 内核源代码

/***************************************************************************/

/*
 *	linux/arch/m68knommu/platform/523x/config.c
 *
 *	Sub-architcture dependant initialization code for the Freescale
 *	523x CPUs.
 *
 *	Copyright (C) 1999-2005, Greg Ungerer ([e-mail])
 *	Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
 */

/***************************************************************************/

#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>

/***************************************************************************/

void coldfire_reset(void);

/***************************************************************************/

/*
 *	DMA channel base address table.
 */
unsigned int   dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
        MCF_MBAR + MCFDMA_BASE0,
};

unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];

/***************************************************************************/

void mcf_disableall(void)
{
	*((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff;
	*((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff;
}

/***************************************************************************/

void mcf_autovector(unsigned int vec)
{
	/* Everything is auto-vectored on the 5272 */
}

/***************************************************************************/

void config_BSP(char *commandp, int size)
{
	mcf_disableall();
	mach_reset = coldfire_reset;
}

/***************************************************************************/