int write_chip(UINT32 addr, UINT32 data){    if(0 == fpgaRWMode)   /* localbus mode */    {        UINT16 datah, datal;        UINT32 dataread;            datah = (UINT16)(data >> 16);        FPGA_REG(addr) = datah;        rwWait(60);        datal = (UINT16)(data & 0xFFFF);        FPGA_REG(addr) = datal;        rwWait(60);    	    #if 0        read_chip(addr, &dataread);        if (data != dataread)        {            printf("ERROR:write 0x%08X; read 0x%08X\n", data, dataread);            return OK;        }    #endif        read_chip(addr, (UINT32 *)(&dataread));        if(print_level == 1)            printf("spi write 0x%05X: 0x%08X\n", addr, data);        return OK;    }    else if(1 == fpgaRWMode) /* i2c mode */    {        int ret = 0;                ret = fpgaMAC_i2c_write(0,0,0,addr,(unsigned char *)(&data),4);    	  if(print_level == 1)    	  {    	      if(ret != 0)    	          printf("spi write failed! read 0x%05x: 0x%08x\n", addr, data);    	      else                printf("spi write 0x%05x: 0x%08x\n", addr, data);        }    	  if(!ret)            return OK;        else            return ERROR;    }    else if(2 == fpgaRWMode) /* spi mode */    {        int ret = 0;		unsigned char *wtBuff = (unsigned char *)malloc(8);		if(NULL == wtBuff)		{			printf("No memory!\n");			return -1;		}		*wtBuff 	= (unsigned char)((data>>24) & 0xff);		*(wtBuff+1) = (unsigned char)((data>>16) & 0xff);		*(wtBuff+2) = (unsigned char)((data>>8 ) & 0xff);		*(wtBuff+3) = (unsigned char)((data    ) & 0xff);		        ret = fpga_spi_write(addr,(unsigned char *)(wtBuff),4);				    	  if(print_level == 1)    	  {    	      if(ret != 0)    	          printf("spi write failed! read 0x%05x: 0x%08x\n", addr, data);    	      else                printf("spi write 0x%05x: 0x%08x\n", addr, data);         }		free(wtBuff);      	  if(!ret)            return OK;        else            return ERROR;    }    else    {        return ERROR;    }}int read_chip(UINT32 addr, UINT32 *data){    if(data =http://www.mamicode.com/= NULL)"localbus read 0x%05X: 0x%08X\n", addr, *data);    	  return OK;    }    else if(1 == fpgaRWMode)  /* i2c mode */    {        int ret = 0;        ret = fpgaMAC_i2c_read(0,0,0,addr,(unsigned char *)data,4);            	  if(print_level == 1)    	  {    	      if(ret != 0)    	          printf("i2c read failed! read 0x%05x: 0x%08x\n", addr, *data);    	      else                printf("i2c read 0x%05x: 0x%08x\n", addr, *data);        }    	  if(!ret)            return OK;        else            return ERROR;    }    else if(2 == fpgaRWMode)  /* spi mode */    {        int ret = 0;        ret = fpga_spi_read(addr,(unsigned char *)data,4);            	  if(print_level == 1)    	  {    	      if(ret != 0)    	          printf("spi read failed! read 0x%05x: 0x%08x\n", addr, *data);    	      else                printf("spi read 0x%05x: 0x%08x\n", addr, *data);        }    	  if(!ret)            return OK;        else            return ERROR;    }    else    {        return ERROR;    }}