sysinit.c

来自「FreeScale imx21开发板Nand flash烧写程序」· C语言 代码 · 共 26 行

#include "Common.H"
#include "ARM920T.H"

void SystemInit(void)
{

/********************************************************************/
  ARM_MMU_Init(ARM_MMUTableSetUp()); // MMU Table Initialization

/*
CR_MMU      MMU Table Enable
 
CR_BIG      Big Endian

CR_DCACHE   D-Cache Enable
CR_ICACHE   I-Cache Enable

CR_FASTBUS  Fast Bus Mode
CR_SYNC     Synchronus Mode
CR_ASYNC    Asynchronus Mode
*/

//  ARM_CP15_ControlRegisterWrite(CR_MMU | CR_DCACHE | CR_ICACHE | CR_SYNC);
//  ARM_CP15_ControlRegisterWrite(CR_ASYNC);

}