ICH_FLASH_FDATA0
flash_data = E1000_READ_FLASH_REG(hw, ICH_FLASH_FDATA0);
*data = E1000_READ_FLASH_REG(hw, ICH_FLASH_FDATA0);
E1000_WRITE_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data);
E1000_WRITE_FLASH_REG(hw, ICH_FLASH_FDATA0, data);