== The supported SPI Flash are: ==
  * Microchip SST25VFxxxB SPI Flash
  * Microchip SST26VFxxxB SPI Flash
  * Microchip SST25VFxxxA SPI Flash
  * Winbond SPI Flash
  * ISSI IS25CQ032 SPI Flash
  * ISSI SPI Flash
  * Macronix SPI Flash
  * Adesto SPI Flash

Only tested with 4MB (32Mbit) Flash at maximum.