Jeff Epler 7f744a2369 Supervisor: move most of systick to the supervisor ... This code is shared by most parts, except where not all the #ifdefs inside the tick function were present in all ports. This mostly would have broken gamepad tick support on non-samd ports. The "ms32" and "ms64" variants of the tick functions are introduced because there is no 64-bit atomic read. Disabling interrupts avoids a low probability bug where milliseconds could be off by ~49.5 days once every ~49.5 days (2^32 ms). Avoiding disabling interrupts when only the low 32 bits are needed is a minor optimization. Testing performed: on metro m4 express, USB still works and time.monotonic_ns() still counts up		2019-11-18 11:01:23 -06:00
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bus	drivers/bus: Pull out software SPI implementation to dedicated driver.	2018-03-10 00:59:43 +11:00
wiznet5k	Supervisor: move most of systick to the supervisor	2019-11-18 11:01:23 -06:00