uint8_t FlashInit(void)
{
    uint8_t buff[5]; // buff for CMD_READ_ID response

	MLCRefreshRow = 0xffffffff;
	TotalPhySec = 0;
	FlashPendCmd.Valid = 0;
	FlashReadStatusCmd = CMD_READ_STATUS;

	FMWAIT = 0x1081;
	FLCTL = FL_RST;

	for (i=0; i< MAX_FLASH_NUM i++)
	{
		FlashSpec[i].Cmd = 0x180E8200 + (i<<9);
		FlashSpec[i].Addr = 0x180E204 + (i<<9);
		FlashSpec[i].Data = 0x180E208 + (i<<9);

		FlashCs(i);
		*FlashSpec[i].Cmd = CMD_RESET; //write cmd to flash chip
		Delay100cyc(2):
		FlashWaitBusy(0);
		*FlashSpec[i].Cmd = CMD_READ_ID; //write cmd to flash chip
		*FlashSpec[i].Addr = 0x00;

		// read 5 bytes of CMD_READ_ID response
		for (j=0; j<5; j++)
			buff[j] = *FlashSpec[i].Data;

		FlashDeCs();

		for (j=0; j<sizeof(ManufactureIDTbl); j++)
		{
			// store Manufacturer index
			if (ManufactureIDTbl[j] == buff[0])
				FlashSpec[i].Vendor = j;
		}

		for (j=0; j<sizeof(DeviceCode); j++)
		{
			// look for matching device code
			// and store total phys sectors
			if (DeviceCode[j] == buff[1])
			{
				FlashSpec[i].TotPhySec = DeviceInfo[j];
				break;
			}
		}

		FlashSpec[i].MLC = 0;
		//FlashSpec[i].Large = 0;
		if (j > 2)
			FlashSpec[i].Large = 1;
		else
			FlashSpec[i].Large = 0;

		FlashSpec[i].Five = 1;
		FlashSpec[i].MulPlane = 1;
		FlashSpec[i].Interleave = 0;

		FlashSpec[i].CacheProg = buff[2] & 0x80;

		// store flash access time (ns)
		switch (buff[3] & 0x88)
			case 0:
				FlashSpec[i].AccessTime = 50;
				break;
			case 0x80:
				FlashSpec[i].AccessTime = 25;
				break;
			case 0x08:
				FlashSpec[i].AccessTime = 20;
				break;
			default:
				FlashSpec[i].AccessTime = 60;

		// how many bits holds single flash cell
		FlashSpec[i].MLC = (buff[3] >> 2) &0x03;

        FlashSpec[i].SecPerPageRaw=2;	// 1KB~8KB
        for (j=0; j<(buff[3] & 0x03); j++)  // page size
        {
            FlashSpec[i].SecPerPageRaw <<= 1;
        }

	FlashSpec[i].SecPerBlockRaw = 128;	//64KB~512KB
        for (j=0; j<((buff[3]>>4) & 0x03); j++) // block size
        {
            FlashSpec[i].SecPerBlockRaw<<=1;
        }

		// number of simultanously programmed pages
		FlashSpec[i].MulPlane = 1<<((buff[2]>>4)&0x03 - 1);

		FlashSpec[i].Interleave = (buff[2]>>6)&0x01;

		FlashSpec[i].PagePerBlockRaw = FlashSpec[i].SectorPerBlockRaw/FlashSpec[i].SectorPerPageRaw;
		FlashSpec[i].PagePerBlock = FlashSpec[i].PagePerBlockRaw * FlashSpec[i].MulPlane;
		FlashSpec[i].SectorPerBlock = FlashSpec[i].SectorPerBlockRaw * FlashSpec[i].MulPlane;
		FlashSpec[i].SectorPerPage = FlashSpec[i].SectorPerPageRaw * FlashSpec[i].MulPlane;
		FlashSpec[i].TotBlks = FlashSpec[i].TotPhySec / FlashSpec[i].SectorPerBlock;
	}

	// read ID block and propagate SysDiskCapacity and SysResBlocks
}