[U-Boot] [PATCH v3 0/8] Improvements for the dwc3_generic driver

[Lukasz Majewski <lukma@denx.de>]

Dear All,

> This series aims at bringing improvements to the dwc3_generic driver
> so that it can be used by most of the platforms using the dwc3
> controller.
> 
> I tested this on with DRA7 and AM57x platforms for both Peripheral
> and Host operations. The code to enable DM USB host & dev support for
> those platforms will be submitted in a separate series.
> 
> Michal Simek has tested this series:
> " I have tested it on zcu100 with usb stick, usb to ethernet
> converter and also dfu.
> Tested-by: Michal Simek <michal.simek@xilinx.com>"
> 
> Enhancements:
> - use separate Kconfig option for DM USB Periphal and DM USB Host.
> This allow platforms to keep their non-DM USB peripheral code and use
> the DM USB host.
> - fixes the bind/probe confusion in dwc3_generic. The probe is done
> when the USB device is first needed.
> - handles PHYs when in the peripheral mode. The code to handle the
> PHYs is shared with the host side
> - handles clock and reset
> - bind host controller to the more generic driver 'xhci-dwc3'
> 
> 
> Changes in v3:
> - fixes bug dwc3_setup_phy(): the phy arrays wasn't returned. This was
>   visible only when the device is removed.
> - Stub the DWC3 PHY operations if CONFIG_IS_ENABLED(PHY) is false.
>   This fixes all build issues but one (evb-rk3328).
> - Fix build issue with evb-rk3328 by enabling CONFIG_USB_DWC3. This
> has little impact on the footprint and should not break the runtime
> as the xhci-rockchip driver has its own probe function.
>   Nevertheless this was !!! NOT TESTED !!! by lack of hw

Can somebody test this patch set on rk3328 and provide Tested-by tag?

> 
> Changes in v2:
> - Updated commit log
> - Fixed typo in thordown.c
> - select DM_USB_DEV by default for zynqmp platforms
> 
> Jean-Jacques Hiblot (8):
>   usb: gadget: Do not call board_usb_xxx() directly in USB gadget
>     drivers
>   usb: introduce a separate config option for DM USB device
>   usb: udc: implement DM versions of
>     usb_gadget_initialize()/_release()/_handle_interrupt()
>   dwc3_generic: do not probe the USB device driver when it's bound
>   dwc3: move phy operation to core.c
>   configs: evb-rk3328: Enable CONFIG_USB_DWC3
>   dwc3-generic: Handle the PHYs, the clocks and the reset lines
>   dwc3-generic: Add select_dr_mode operation
> 
>  arch/arm/Kconfig                  |   2 +
>  cmd/fastboot.c                    |   4 +-
>  cmd/rockusb.c                     |   4 +-
>  cmd/thordown.c                    |   4 +-
>  cmd/usb_gadget_sdp.c              |   4 +-
>  cmd/usb_mass_storage.c            |   4 +-
>  common/dfu.c                      |   6 +-
>  configs/evb-rk3328_defconfig      |   1 +
>  drivers/usb/Kconfig               |   6 ++
>  drivers/usb/dwc3/Kconfig          |   7 +-
>  drivers/usb/dwc3/core.c           |  89 +++++++++++++++-
>  drivers/usb/dwc3/dwc3-generic.c   | 207
> +++++++++++++++++++++++++++++---------
> drivers/usb/dwc3/ep0.c            |   1 -
> drivers/usb/gadget/ether.c        |  38 +------
> drivers/usb/gadget/udc/udc-core.c |  44 +++++++-
> drivers/usb/host/xhci-dwc3.c      |  95 ++---------------
> include/dwc3-uboot.h              |  19 ++++
> include/linux/usb/gadget.h        |  18 ++++ 18 files changed, 367
> insertions(+), 186 deletions(-)
> 




Best regards,

Lukasz Majewski

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