[RFC PATCH 00/10 V3] MXS: Add i.MX28 USB Host driver

[Subodh Nijsure]

On 04/18/2012 10:46 AM, Marek Vasut wrote:
> This patchset introduces the USB Host driver for i.MX28 CPU, utilising the
> generic USB PHY infrastructure.
>
> V2: Introduce stub imx-usb driver that then registers the PHY and EHCI drivers.
> V3: Add the HCD on demand based on the PHY's state (only add HCD if it's host).
>      Currently, only the HOST mode is supported.
>
> Marek Vasut (10):
>    MXS: Make clk_disable return integer
>    MXS: Add USB EHCI and USB PHY clock handling
>    MXS: Fixup i.MX233 USB base address name
>    MXS: Add data shared between imx-usb and EHCI driver
>    MXS: Add platform registration hooks for USB EHCI
>    MXS: Add imx-usb driver
>    MXS: Add USB PHY driver
>    MXS: Add separate MXS EHCI HCD driver
>    MXS: Enable USB on M28EVK
>    MXS: Enable USB on MX28EVK
>
>   arch/arm/mach-mxs/Kconfig                       |    4 +
>   arch/arm/mach-mxs/clock-mx28.c                  |   28 ++-
>   arch/arm/mach-mxs/devices-mx28.h                |    4 +
>   arch/arm/mach-mxs/devices/Kconfig               |    3 +
>   arch/arm/mach-mxs/devices/Makefile              |    1 +
>   arch/arm/mach-mxs/devices/platform-usb.c        |   78 ++++++
>   arch/arm/mach-mxs/include/mach/clock.h          |    2 +-
>   arch/arm/mach-mxs/include/mach/devices-common.h |    9 +
>   arch/arm/mach-mxs/include/mach/mx23.h           |    8 +-
>   arch/arm/mach-mxs/mach-m28evk.c                 |   15 ++
>   arch/arm/mach-mxs/mach-mx28evk.c                |   10 +
>   drivers/usb/host/Kconfig                        |    7 +
>   drivers/usb/host/ehci-hcd.c                     |    5 +
>   drivers/usb/host/ehci-mxs.c                     |  228 +++++++++++++++++
>   drivers/usb/otg/Kconfig                         |   16 ++
>   drivers/usb/otg/Makefile                        |    2 +
>   drivers/usb/otg/imx-usb.c                       |  226 +++++++++++++++++
>   drivers/usb/otg/mxs-phy.c                       |  305 +++++++++++++++++++++++
>   include/linux/fsl_devices.h                     |   10 +
>   19 files changed, 952 insertions(+), 9 deletions(-)
>   create mode 100644 arch/arm/mach-mxs/devices/platform-usb.c
>   create mode 100644 drivers/usb/host/ehci-mxs.c
>   create mode 100644 drivers/usb/otg/imx-usb.c
>   create mode 100644 drivers/usb/otg/mxs-phy.c
>
> Cc: Chen Peter-B29397<B29397 at freescale.com>
> Cc: Detlev Zundel<dzu at denx.de>
> Cc: Fabio Estevam<festevam at gmail.com>
> Cc: Li Frank-B20596<B20596 at freescale.com>
> Cc: Lin Tony-B19295<B19295 at freescale.com>
> Cc: Linux USB<linux-usb at vger.kernel.org>
> Cc: Sascha Hauer<s.hauer at pengutronix.de>
> Cc: Shawn Guo<shawn.guo at freescale.com>
> Cc: Shawn Guo<shawn.guo at linaro.org>
> Cc: Stefano Babic<sbabic at denx.de>
> Cc: Subodh Nijsure<snijsure at grid-net.com>
> Cc: Tony Lin<tony.lin at freescale.com>
> Cc: Wolfgang Denk<wd at denx.de>
>

Tested this (v3) patch set on a MX28 based hardware that I have access 
to, and things worked as expected.

Tested-by:  Subodh Nijsure <snijsure at grid-net.com>

-Subodh