On 07/05/2018 01:57 AM, Andre Przywara wrote: > On the A64 the clock for the first USB controller is actually the parent > of the clock for the second controller, so turning them off in that order > makes the system hang. > Fix this by only turning off *both* clocks when the *last* OHCI controller > is brought down. This covers the case when only one controller is used. > > Signed-off-by: Andre Przywara <andre.przyw...@arm.com> > --- > Hi, > > as requested by Marek, a second version to address the problem of only > one controller instantiated. I tested all cases: > - only [EO]HCI1 enabled (current U-Boot master DT) > - both controllers enabled (mainline Linux DT) > - only [EO]HCI0 enabled (DT hack) > In all cases the system booted without hanging, plus I confirmed that > the USB clocks were disabled in all cases (early in the kernel). > > Cheers, > Andre. > > P.S. I found the MMC0, EMAC and USB-OTG AHB gates and resets still running, > but this is an unrelated issue and no regression. Just in case somebody > feels bored ...
Applied, thanks for all the effort you put into this . -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
