On Wed, Jun 21, 2023 at 9:38 PM Marek Vasut <ma...@denx.de> wrote: > > On 6/20/23 16:37, Jagan Teki wrote: > > Hi, > > > > Has anyone tried to use dwc2 and echi port together with USB disk? > > look like this is not working with this combination on any Rockchip > > SoC's > > > > Here are the issues that I've reproduced in RK3328 where the disk > > connected in EHCI port is detecting but DWC2 is not. Any clue? > > I generally avoid using DWC2 as host. RPi 1/2/3 does use it as host, but > I think there is a hub between.
The B models of the 1-3 have a hub. > Also, RPi zero (?) might have raw host port on it, without hub . Correct, the Zeros, Model As, Compute Modules (inc the CM4) in some configurations and the RPi4 via the USB-C (albeit I suspect rarely used as such) all have dwc2 directly connected.
