imx8mm/imx8mn hang on usb stop / ehci_shutdown

Tim Harvey tharvey at gateworks.com
Thu Apr 27 19:52:21 CEST 2023


On Thu, Apr 27, 2023 at 10:49 AM Fabio Estevam <festevam at gmail.com> wrote:
>
> Hi Adam,
>
> On Thu, Apr 27, 2023 at 2:42 PM Adam Ford <aford173 at gmail.com> wrote:
>
> > There was some re-organization of the power domains in Linux in the
> > device tree [1].  Do you know if those propagated to U-Boot?
>
> Excellent, I just synced the kernel imx8mm.dtsi with U-Boot and it
> does fix the "ums 0 mmc 1" issue I just described.
>
> I will submit the dtsi sync patch. Thanks!

Fabio,

The original issue I was trying to solve should not be visible on
imx8mm-evk unless you changed its usbotg1 to dr_mode = "host" in which
case you should see a hang with a simple 'usb start && usb stop'.

Best Regards,

Tim


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