Quoting Ansuel Smith (2022-03-14 05:43:20) > On Mon, Mar 14, 2022 at 11:20:21AM +0300, Dmitry Baryshkov wrote: > > On 13/03/2022 22:04, Ansuel Smith wrote: > > > Add 8064 errata workaround where the sec_src clock gating needs to be > > > > Could you please be more specific whether the errata applies only to the > > ipq8064 or to the apq8064 too? 8064 is not specific enough. > > > > That's a good question... Problem is that we really don't know the > answer. This errata comes from qsdk on an old sourcecode. I assume this > is specific to ipq8064 and apq8064 have different mux configuration. > I think it was some glitch that happened when the automatic clk gating was enabled during a switch. The automatic clk gating didn't know that software was running and switching the input so it killed the CPU and stopped the clk. That lead to hangs and super badness. I assume it was applicable to apq8064 as well because ipq8064 is basically apq8064 with the multimedia subsystem replaced by the networking subsystem. Also I wouldn't remember all these details because I worked on apq8064 but not so much on ipq8064 :)
