If there is no SPI NAND soldered in, is it possible to use those pads for a SPI device? If so, what would be the pin layout? I have a need for two SPI interfaces to be able to use standard SPI (spidev1) devices plus the simple SPI for the Sparkfun APA102 boards (doesn't use CS, so you can't easily share the bus). Any help would be appreciated. Thank you.