?? cache.c
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/*****************************************
NAME: cache.c
DESC: CACHE test
HISTORY:
2002.03.07: ver 0.0
*****************************************/
#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
#include "mmu.h"
static void ICache_InitMMU(void);
void MoveSDRAM2ICache(U32 addr);
void Test_ICache(void)
{
int i;
U32 *pCacheableData=(void *)0x30200000;
U32 *pt;
ICache_InitMMU();
for(i=0;i<0x4000/4;i++)
*(pCacheableData+i)=i;
MoveSDRAM2ICache((U32)pCacheableData);
*(pCacheableData+0)=0x55555555;
*(pCacheableData+0)=0xaaaaaaaa;
for(i=0;i<0x4000/4;i++)
{
Uart_Printf("%8x ",*(pCacheableData+i));
}
}
void MoveSDRAM2ICache(U32 addr)
{
int i,j,pt;
MMU_DisableICache();
MMU_InvalidateICache();
//MMU_EnableICache();
pt=addr;
for(i=0;i<64;i++)
for(j=0;j<8;j++)
{
MMU_SetICacheLockdownBase((U32)i<<26);
MMU_PrefetchICacheMVA(pt);
pt+=32;
}
MMU_EnableICache();
}
/********************************************************************
0x31000000~0x310fffff will be non-cachable area for the ICache test.
********************************************************************/
static void ICache_InitMMU(void)
{
int i,j;
MMU_DisableDCache();
MMU_DisableICache();
//If write-back is used,the DCache should be cleared.
for(i=0;i<64;i++)
for(j=0;j<8;j++)
MMU_CleanInvalidateDCacheIndex((i<<26)|(j<<5));
MMU_InvalidateICache();
#if 0
//To complete MMU_Init() fast, Icache may be turned on here.
MMU_EnableICache();
#endif
MMU_DisableMMU();
MMU_InvalidateTLB();
MMU_SetMTT(0x00000000,0x01f00000,0x00000000,RW_CNB); //bank0
MMU_SetMTT(0x08000000,0x03f00000,0x08000000,RW_CNB); //bank1
MMU_SetMTT(0x10000000,0x05f00000,0x10000000,RW_NCNB); //bank2
MMU_SetMTT(0x18000000,0x07f00000,0x18000000,RW_NCNB); //bank3
MMU_SetMTT(0x20000000,0x09f00000,0x20000000,RW_NCNB); //bank4
MMU_SetMTT(0x28000000,0x0bf00000,0x28000000,RW_NCNB); //bank5
MMU_SetMTT(0x30000000,0x0c000000,0x30000000,RW_NCNB); //bank6-1
MMU_SetMTT(0x31000000,0x0cf00000,0x31000000,RW_CB); //bank6-1
MMU_SetMTT(0x33ff0000,0x0df00000,0x33ff0000,RW_NCNB); //bank6-2
MMU_SetMTT(0x38000000,0x0ff00000,0x38000000,RW_NCNB); //bank7
MMU_SetMTT(0x10000000,0x13f00000,0x10000000,RW_FAULT);//not used
MMU_SetMTT(0x48000000,0x5af00000,0x48000000,RW_NCNB); //SFR
MMU_SetMTT(0x5b000000,0xfff00000,0x5b000000,RW_FAULT);//not used
MMU_SetTTBase(_MMUTT_STARTADDRESS);
MMU_SetDomain(0x55555550|DOMAIN1_ATTR|DOMAIN0_ATTR);
//DOMAIN1: no_access, DOMAIN0,2~15=client(AP is checked)
MMU_SetProcessId(0x0);
MMU_EnableAlignFault();
MMU_EnableMMU();
MMU_EnableICache();
MMU_EnableDCache(); //DCache should be turned on after MMU is turned on.
}
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