Kári Davíðsson wrote: > Hi, > > In the m8xxhci.c hci driver for the mpc one can select to use TIMER1 for > the SOF generator. > A interruopt handler, m8xxhci_timer_interrupt() is registered to handle > this interrupt and generate the SOF. > Why is it then that the timer is also exported to PA6? > Why is it the the USE_TIMER1_FOR_SOF is defined within the > USE_UCODE_PATCH which is for external generated SOF-interrupt? > Isn't the timer option exactly for the case where you do not have > externally generated SOF-interrupt? > If we can use a timer for generating the SOF why can't we just use a > regular kernel timer instead, and therfore free one timer or baud rate > generator? > The microcode patch needs an external 1kHz Signal on dreq input. Timer 1 is one option to generate that external signal. The interrupt handler is not needed anymore so my patch should have changed a little bit more. The timer can run without interrupt handler it just must generate the external 1kHz Signal. - Roman > Thanks, > > K.D. > > P.S. sorry for the x-post I am not shure if this belongs to the embedded > list or the usb list. > _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: http://lists.sourceforge.net/lists/listinfo/linux-usb-devel
