[U-Boot] [PATCH] usb: add support for generic EHCI devices

Marek Vasut marex at denx.de
Sat Nov 14 04:05:46 CET 2015


On Saturday, November 14, 2015 at 03:05:37 AM, Simon Glass wrote:
> Hi,
> 
> On 13 November 2015 at 11:10, Alexey Brodkin
> 
> <Alexey.Brodkin at synopsys.com> wrote:
> > Similarly to Linux kernel it's nice to have generic driver for
> > EHCI-compatible host controllers.
> > 
> > This implementation is very minimalistic and doesn't have any
> > platform-specific glue code nor phy-related operations.
> > 
> > For example this allows usage of USB-storage devices with
> > Synopsys DesignWare AXS10x boards.
> > 
> > Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
> > Cc: Stephen Warren <swarren at nvidia.com>
> > Cc: Simon Glass <sjg at chromium.org>
> > Cc: Marek Vasut <marex at denx.de>
> > ---
> > 
> >  drivers/usb/host/Kconfig        |  7 +++++
> >  drivers/usb/host/Makefile       |  1 +
> >  drivers/usb/host/ehci-generic.c | 57
> >  +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 65
> >  insertions(+)
> >  create mode 100644 drivers/usb/host/ehci-generic.c
> 
> Reviewed-by: Simon Glass <sjg at chromium.org>
> 
> Please see nits below.
> 
> > diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> > index 2a2bffe..a500578 100644
> > --- a/drivers/usb/host/Kconfig
> > +++ b/drivers/usb/host/Kconfig
> > @@ -73,4 +73,11 @@ config USB_EHCI_UNIPHIER
> > 
> >         ---help---
> >         
> >           Enables support for the on-chip EHCI controller on UniPhier
> >           SoCs.
> > 
> > +config USB_EHCI_GENERIC
> > +       bool "Support for generic EHCI USB controller"
> > +       depends on OF_CONTROL
> > +       default y
> > +       ---help---
> > +         Enables support for generic EHCI controller.
> 
> such as Synopsys ...

Please don't add "such as FOO", it's confusing.

> what does 'generic' mean?
> Please add a few more details.

Otherwise, I agree with the rest.

Thanks!


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