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DM3730 OTG Host instable with FS devices

Martin Chaplet
Prodigy 85 points
Other Parts Discussed in Thread: TPS65950, DM3730

I'm using DM3730 OTG Host port (interfaced with TPS65950) with a Linux software.

Everything seems working perfectly with High Speed (USB 2.0) devices but when using a FS (USB1.1) Hub, the same devices (mass-storage, Serial converter) doesn't work very well.

This behavior is true with Linux kernel and U-Boot

I activated debug in musb driver and it seems that sometimes, timeout occurs instead of TX interrupts (in the case of usb_control_msg).

This issue seems very close to Errata 11 of TPS 69650 but it deals with 4-pin serial mode and in our case, we are using default mode (8 bit synchronous)

Has anyone seen similar issues ?

Has anyone tested OTG Host port with FS devices ?

Thanks for any help,

Martin