We are using MT7628 based module in which we need to interface SPI with a general purpose micro controller. In this case , we have MT7628 based board which will act as a SPI slave (SPIS) and the micro controller acts as SPI master. Can anybody help in providing the information on Linux(linux-4.4.71) SPI slave driver for MT7628 based module. Does it available in "source-17.01.2" LEDE distribution? or we need to write separately.