On 02/06/15 18:21, Mason wrote: > > > config HAVE_ARM_TWD > bool > depends on SMP > select CLKSRC_OF if OF > help > This options enables support for the ARM timer and watchdog unit > > One problem I see is that HAVE_ARM_TWD depends on SMP... > > One of the systems I want to support is UP (single-core Cortex A9). > Does that mean I should use an SMP kernel even for that system? > Or is there a different subsystem for UP systems? I don't see any problem with the TWD dropping the dependency on SMP. The code should work the same on a UP configuration and if that's the only timer you have that can deliver interrupts to your processor then it would be required. You'd still need a clocksource though, which the TWD doesn't provide. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
