On Thu, Nov 29, 2018 at 5:29 AM Stephen Boyd <[email protected]> wrote: > > Quoting Chen-Yu Tsai (2018-11-28 01:30:07) > > On the R40, in addition to a mux between the RTC's own RC oscillator and > > an external 32768 Hz crystal, which are muxed inside the RTC module, the > > CCU also has its own RC oscillator, which runs at around 2 MHz, and can > > be muxed with the LOSC output from the RTC. This muxed output is called > > "SYS 32K" in the module clock diagram, but otherwise referred to as the > > LOSC throughout the CCU documentation. > > > > The RC oscillator is not very accurate, even though it has an undocumented > > calibration function. We really want a precise clock at 32768 Hz, > > instead of something at around 32 KHz. This patch forces the SYS 32K > > clock to use the RTC output as its parent, and doesn't bother > > registering the internal oscillator nor a clock mux. > > > > Signed-off-by: Chen-Yu Tsai <[email protected]> > > --- > > Acked-by: Stephen Boyd <[email protected]>
Merged with acks from Maxime and Stephen. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
