[PATCHv2 4/4] clocksource: arch_timer: Add support for memory mapped timers

Add support for the memory mapped timers by filling in the read/write functions and adding some parsing code. Note that we only register one clocksource, preferring the cp15 based clocksource over the mmio one. To keep things simple we register one global clockevent. This covers the case of UP

[PATCHv2 4/4] clocksource: arch_timer: Add support for memory mapped timers

Add support for the memory mapped timers by filling in the read/write functions and adding some parsing code. Note that we only register one clocksource, preferring the cp15 based clocksource over the mmio one. To keep things simple we register one global clockevent. This covers the case of UP