[U-Boot] [RFC PATCH 0/7] RFC: dm: Add USB support

Marek Vasut
2015-01-30T22:16:21Z

On Friday, January 30, 2015 at 08:04:50 PM, Simon Glass wrote:
> This series adds basic driver model support to USB. The intent is to permit
> the various subsystems (OHCI, EHCI, XHCI) to co-exist and allow any number
> of USB ports of different types. So far the absolute limit on the number
> of USB devices is only slightly relaxed.
>
> Only USB controllers have a real driver model device. USB devices
> (including the hub in the controller) are not modelled as driver model
> devices. This is for two reasons:
>
> - it is easier since we don't need to bind a whole lot of devices when
> scanning
> - the two main USB devices (block devices and Ethernet) don't have driver
> mode support yet anyway, so it would be pointless. However the recent
> network RFC has encouraged me to send this.
>
> The basic approach is to set up the driver model structures in parallel to
> what already exists rather than to replace them. This allows both driver
> model and legacy to be used for USB, although not with the same board.
>
> So far only XHCI is supported. As an example the Exynos XHCI driver is
> converted to driver model.
>
> I would appreciate comments before going further.
>
> Caveats:
> - sandbox code is incomplete and there are no tests
> - 'usb stop' does not remove existing devices (I have not yet settled on
> the best approach)
> - the usb.h changes need to be split correctly into the patches once they
> are final
>
> This series is available at u-boot-dm/usb-working.

Hi!

I'll look at this by the end of next week, I will be free by then. It's not
possible for me to do it earlier, sorry. Does this still work for you please?

Best regards,
Marek Vasut