>
> > According to IC guys, the logic of handling HOSTDISCONDETECT is the
> same
> > between i.mx28 and i.mx23.
>
> As pointed out by Sean, on mx23 reference manual we have the following
> text describing HOSTDISCONDETECT:
>
> "Due to a on chip issue (Errata #2791), software must
> pay attention to when to assert the HOSTDISCONDETECT bit description
> has the following:
>
> ENHOSTDISCONDETECT bit in HW_USBPHY_CTRL register:
> 1. Only set HW_USBPHY_CTRL.ENHOSTDISCONDETECT
> during high speed host mode.
> 2. Do not set HW_USBPHY_CTRL.ENHOSTDISCONDETECT
> during the reset and speed negotiation period.
> 3. Do not set HW_USBPHY_CTRL.ENHOSTDISCONDETECT
> during host suspend/resume sequence."
>
> and the same is not present on mx28 reference manual.
>
> How can we make sure we are not violating the point 2 above?
>
It is the same with i.mx28. I think Richard's patch should not
violate point 2. Richard, can you confirm it?
> Thanks,
>
> Fabio Estevam
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