config BR2_PACKAGE_TS4900_FPGA bool "ts4900-fpga" depends on BR2_arm help TS-4900's FPGA implements clocks, UART MUX, and GPIOs. One of these GPIOs is used to enable the wifi module. It is loaded by U-Boot during the boot sequence, the default U-boot script expects to find it in the /boot folder. http://wiki.embeddedarm.com/wiki/TS-4900#FPGA_Changelog