TMC_CTL
bus_read_4(sc->res, TMC_CTL),
if (bus_read_4(sc->res, TMC_CTL) & CTL_TRACECAPTEN)
bus_write_4(sc->res, TMC_CTL, CTL_TRACECAPTEN);
if ((bus_read_4(sc->res, TMC_CTL) & CTL_TRACECAPTEN) == 0)
if ((bus_read_4(sc->res, TMC_CTL) & CTL_TRACECAPTEN) == 0)
reg = bus_read_4(sc->res, TMC_CTL);
bus_write_4(sc->res, TMC_CTL, reg);