VoCore2 SPI: full duplex
mt7628a has a wafer/silicon bug on SPI, we can not use its SPI in full duplex mode, but we can use bitbang for that mode. For some device do not support half-duplex, maybe this is the only way. To enable bitbang on VoCore2, we need to modify Linux kernel code, VOCORE2.DTS and kernel setting. Setup […]