On 28/11/2018 09:41:22+0000, Anson Huang wrote: > > > i.MX SoCs ONLY have 1 RTC. And RTC are always enabled by default for > > > all i.MX SoCs, so do we have to disable it here and enable it in board dts? > > > > > > > I would say that most of the i.MX based boards include another RTC because > > the SoC one consumes way too much power. > > > > Note that I don't care too much whether it is enabled by default, I was simply > > explaining why you may want to disable it by default. > > OK, this system controller RTC is a little different, it is controlled by system controller firmware, > and system controller firmware will always select the best one for its user(Linux kernel) if there are other > RTCs available, so I think we can keep it enabled by default for now. Thanks. > Do you mean that the plan is to push support for the external RTCs (e.g. the i2c ones) to the M4 firmware? -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
