+extern struct flash_driver efm32_flash;
+extern struct flash_driver mdr_flash;
+extern struct flash_driver numicro_flash;
+extern struct flash_driver nrf51_flash;
+extern struct flash_driver mrvlqspi_flash;
+extern struct flash_driver psoc4_flash;
+extern struct flash_driver sim3x_flash;
+extern struct flash_driver jtagspi_flash;
+extern struct flash_driver xmc4xxx_flash;
+extern struct flash_driver niietcm4_flash;