dc4f2b014d
Summary: Existing code recognizes the mcp7941x RTC, but this RTC has an enable bit at the same location as the "Clock Halt" bit on the ds1307, with an opposite assertion (set == on, whereas CH set == clock stopped). Thus the current code halts the clock, with no way to enable it. Reviewed By: ian MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D12961