On Mon, Jul 03, 2017 at 10:17:22AM +0100, Sudeep Holla wrote: > > > On 01/07/17 19:14, Uwe Kleine-König wrote: > > Hello, > > > > On Sat, Jul 01, 2017 at 07:02:48AM +0200, Dirk Behme wrote: > > [...] > > >> > >> > >> The other problem is security related. If, at all, you have to do it the > >> other way around, then: > >> > >> Make Linux a consumer of the other CPU's (trusted/trustzone/whatever > >> secured) OS clock driver. > > Yes, that's better and is getting common on newer platforms. They have > separate M-class(or even low A-class e.g. A5/A7) processors to handle > all the system management. > > The new ARM SCMI specification[0][1] is designed to standardize the > interface. It covers the clocks in clock protocol. > Yes, however this doesn't exist on older SoCs which still have multiple CPU's Peter.
