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RFC MXS: Add i.MX28 USB Host driver

Subodh Nijsure linux-arm-kernel 1 version New

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  1. v3 RFC Latest0 of 10 patches 0 repliesNew

Patches in v3 No applies recorded yet

None of the 10 patches the cover letter announces are in this archive.

Reviews trailers per patch

PatchSubodh Nijsure
SeriesT-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v3 thread

Cover letter [RFC PATCH 00/10 V3] MXS: Add i.MX28 USB Host driver
Quoted 44 lines · Marek Vasut

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

Quoted 14 lines
Cc Chen Peter-B29397<[email protected]>
Cc Detlev Zundel<[email protected]>
Cc Fabio Estevam<[email protected]>
Cc Li Frank-B20596<[email protected]>
Cc Lin Tony-B19295<[email protected]>
Cc Linux USB<[email protected]>
Cc Sascha Hauer<[email protected]>
Cc Shawn Guo<[email protected]>
Cc Shawn Guo<[email protected]>
Cc Stefano Babic<[email protected]>
Cc Subodh Nijsure<[email protected]>
Cc Tony Lin<[email protected]>
Cc Wolfgang Denk<[email protected]>

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

Tested-by Subodh Nijsure <[email protected]>

-Subodh

Read the cover letter in its thread