sysinit.c

飞思卡尔imx27 wince5.0 bootloader源代码

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

 C   H E A D E R   F I L E


 ALL RIGHTS RESERVED

*******************************************************************************

 Project Name : BONO System Test Program
 Project No.  :
 Title        :
 File Name    : SysInit.c
 Last Modified: 12/27/2005
 (MM/DD/YYYY)

 Description  : Prototype definition header for BONO silicon system test program.

 Assumptions  :

 Dependency Comments :

 Project Specific Data :

 History (MM/DD/YYYY) :
 12/27/2005 - Initial Proposal

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

#define SYS_DEFINE_GLOBALS

#include <stdio.h>
#include "common.h"
#include "bono_memory_map_defines.h"
#include "prototype.h"

extern void SetIntType(uint32_t IntNum, uint8_t type);
extern void SetAsynchMode(void);


/////////////////////////////////////////////////
//											   //
//	Call by user program for interupt enable   //
//											   //
/////////////////////////////////////////////////
void IrptInit(void)
{
	uint32_t i;
	//*(p_uint32_t)AITC_INTCNTL &= 0x00;
	/* To set all interrupt source to normal interrupt source */
	for (i=0; i<=63; i++)
	{
		SetIntType(i, 0);
	}

	/* Enable all int sources */
/*	for (i=0; i<=31; i++)
	{
		EnableIntSource(i);
	}
*/
}

void MemInit(void)
{
}

void LCDCInit(void)
{
}
void Enable_MMU (void)
{
__asm {
    mrc p15,0,r0,c1,c0,0
    mov r2, #0x00000001
    orr r0,r2,r0
    mcr p15,0,r0,c1,c0,0
    }
printf("MMU enabled\n");
}

void Disable_MMU (void)
{
__asm {
    mrc p15,0,r0,c1,c0,0
    mov r2, #0xFFFFFFFE
    and r0,r2,r0
    mcr p15,0,r0,c1,c0,0
    }
printf("MMU disabled\n");
}

void SysInit(void)
{
	ARM_MMU_Init(ARM_MMUTableSetUp()); // MMU Table Initialization
	Enable_MMU();
}