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RFC MXS: Add i.MX28 USB Host driver

Dirk Behme linux-arm-kernel 1 version New

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  1. v1 RFC Latest0 of 8 patches 0 repliesNew

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Cover letter [RFC PATCH 0/8] MXS: Add i.MX28 USB Host driver

Hi Marek,

Quoted 2 lines · Marek Vasut

This patchset introduces the USB Host driver for i.MX28 CPU, utilising the generic USB PHY infrastructure.

Great, many thanks!

Unfortunately, I lost the overview over the i.MXxx USB discussion ;)

Could this be used to add support for the mx53 and mx6, too? If yes, what do you think would be needed for this?

Best regards

Dirk

P.S.: What I read from the discussion:

-- cut --
All recent Freescale SoC's USB controller are the same, they are mx23, mx25, mx28, mx31, mx35, mx37, mx50, mx51, mx53, and mx6. But, the transceiver is different between them
* mx23, mx28, mx6 (Transceiver A)
* mx25 mx31, mx35,mx37, mx50, mx51, mx53 (Transceiver B)
-- cut --

Quoted 45 lines

Marek Vasut (8):
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 platform registration hooks for USB EHCI
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        |   79 ++++++
 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                 |   10 +
 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                     |  309 +++++++++++++++++++++++
 drivers/usb/otg/Kconfig                         |    9 +
 drivers/usb/otg/Makefile                        |    1 +
 drivers/usb/otg/mxs-phy.c                       |  256 +++++++++++++++++++
 17 files changed, 736 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/mxs-phy.c
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]>

Read the cover letter in its thread