STATIC_PREFIX int nf_sp_read(unsigned dest,unsigned size)
{
unsigned page_base,cnt,cur;
int ret;
nf_cntl_init(romboot_info);
page_base= 0;
for(cnt=0,cur=READ_SIZE/512;cnt<size&&(page_base+cur)<1024;cnt+=512,cur++)
{
do{
nf_send_read_cmd(page_base+cur,1);//small Page mode
ret=nf_read_dma((unsigned*)(dest+cnt),(unsigned*)CONFIG_NAND_INFO_DMA_ADDR,
512, NAND_ECC_BCH8);
if(ret!=-1)
break;
else{
page_base+=CONFIG_NAND_SP_BLOCK_SIZE;
if((page_base+cur)>=CONFIG_NAND_PAGES)
return -1;
}
} while(ret==-1);
}
return 0;
}
void nf_erase(void)
{
int i;
nf_cntl_init(romboot_info);
for(i=0;i<4;i++)
{
NFC_SEND_CMD_CLE(CE0,0x60);
NFC_SEND_CMD_ALE(CE0,0);
NFC_SEND_CMD_ALE(CE0,i);
NFC_SEND_CMD_ALE(CE0,0);
NFC_SEND_CMD_CLE(CE0,0xd0);
NFC_SEND_CMD_RB(CE0,0);
}
NFC_SEND_CMD_IDLE(CE0,0); // FIFO cleanup
NFC_SEND_CMD_IDLE(CE0,0); // FIFO cleanup
while(NFC_CMDFIFO_SIZE()>0); // wait until all command is finished
}
STATIC_PREFIX int nf_lp_read(volatile unsigned dest, volatile unsigned size)
{
volatile unsigned page_base,cnt,cur;
volatile int ret=0;
unsigned char lp=0;
nf_cntl_init(romboot_info);
cnt=0;
cur=READ_SIZE/(3*512);
page_base= 0;
// romboot_info->nand_addr<<8;
for(;cnt<size&&cur<256;cnt+=3*512,cur++)
{
do{
nf_send_read_cmd(page_base+cur,1);//Large Page mode
ret=nf_read_dma((unsigned*)(dest+cnt),
( volatile unsigned*)CONFIG_NAND_INFO_DMA_ADDR,3*512, NAND_ECC_BCH16);
if(ret==0)
break;
else
{
if(ret==-1)
serial_puts(" ecc err\n");
if(ret==-2)
serial_puts("not 55aa\n");
page_base+=256;
if(page_base==1024)
{
serial_puts("lp 1024\n");
goto bad;
// while(1);//dead , booting fail
}
}
} while(ret!=0);
}
return 0;
bad:
return 1;
}
