So a couple of days ago I received my Galileo 2, I have been playing around with my Adafruit_ILI9341 library and it works, but I am finding the SPI clock speed to be something like: 39us or about 256khz, which is pretty slow. My timings are something like 4 times as slow as Edison.
I am calling off to SPI to set the speed:
SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
I am running 1.0.4 of the IDE. Not sure what else to try here. I am using the Shield version of the Adafruit display so: CS=10, DC=9