__s32 NF_close( void )
{
if( NAND_PhyExit( ) == FAIL )
return NF_ERROR;
else
return NF_OK;
}
int nand_download_boot0(uint length, void *buffer)
{
int ret;
if(!NAND_PhyInit())
{
ret = NAND_BurnBoot0(length, buffer);
}
else
{
ret = -1;
}
NAND_PhyExit();
return ret;
}
int nand_download_uboot(uint length, void *buffer)
{
int ret;
debug("nand_download_uboot\n");
if(!NAND_PhyInit())
{
ret = NAND_BurnUboot(length, buffer);
debug("nand burn uboot error ret = %d\n", ret);
}
else
{
debug("nand phyinit error\n");
ret = -1;
}
NAND_PhyExit();
return ret;
}
/*
************************************************************************************************************************
* EXIT NAND DRIVER
*
*Description: ;
*
*Arguments : void
*Return : = SUCESS exit ok;
* = FAIL exit fail.
************************************************************************************************************************
*/
__s32 NAND_Exit(void)
{
__s32 result;
#ifdef BOOT_CACHE_OPEN
NAND_CacheClose();
#endif
//exit nand flahs logic module
result = LML_Exit();
if(result < 0)
{
return -1;
}
//exit nand flash physical module
result = NAND_PhyExit();
if(result < 0)
{
return -2;
}
return result;
}
/*
************************************************************************************************************
*
* function
*
* 函数名称：
*
* 参数列表：
*
* 返回值 ：
*
* 说明 ：
*
*
************************************************************************************************************
*/
__s32 NF_open( void )
{
__u32 blk_for_boot1;
struct boot_flash_info info;
if( NAND_PhyInit( ) == FAIL )
return NF_ERROR;
if( NAND_GetFlashInfo( &info ) == FAIL )
{
goto error;
}
page_with_bad_block = info.pagewithbadflag;
NF_BLOCK_SIZE = info.blocksize * NF_SECTOR_SIZE;
switch( NF_BLOCK_SIZE )
{
case SZ_16K :
NF_BLK_SZ_WIDTH = 14;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_16K_BLK_NF;
break;
case SZ_32K :
NF_BLK_SZ_WIDTH = 15;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_32K_BLK_NF;
break;
case SZ_128K :
NF_BLK_SZ_WIDTH = 17;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_128K_BLK_NF;
break;
case SZ_256K :
NF_BLK_SZ_WIDTH = 18;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_256K_BLK_NF;
break;
case SZ_512K :
NF_BLK_SZ_WIDTH = 19;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_512K_BLK_NF;
break;
case SZ_1M :
NF_BLK_SZ_WIDTH = 20;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_1M_BLK_NF;
break;
case SZ_2M :
NF_BLK_SZ_WIDTH = 21;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_2M_BLK_NF;
break;
case SZ_4M :
NF_BLK_SZ_WIDTH = 22;
blk_for_boot1 = BLKS_FOR_BOOT1_IN_4M_BLK_NF;
break;
default :
goto error;
}
BOOT1_LAST_BLK_NUM = BOOT1_START_BLK_NUM + blk_for_boot1 - 1;
NF_PAGE_SIZE = info.pagesize * NF_SECTOR_SIZE;
switch( NF_PAGE_SIZE )
{
case SZ_512 :
NF_PG_SZ_WIDTH = 9;
break;
case SZ_2K :
NF_PG_SZ_WIDTH = 11;
break;
case SZ_4K :
NF_PG_SZ_WIDTH = 12;
break;
case SZ_8K :
NF_PG_SZ_WIDTH = 13;
break;
case SZ_16K :
NF_PG_SZ_WIDTH = 14;
break;
default :
goto error;
}
return NF_OK;
error:
NAND_PhyExit( );
return NF_ERROR;
}
