• Angus Ainslie's avatar
    m4 : add spi code · 524c7f61
    Angus Ainslie authored
    * add interrutps for times and uart code
    * add spi code with interrupts
    caveat: interrupts are not firing so the handlers are not getting
    called. There is a possibility that they are firing and the A53
    core is handling them before the M4 can.