[RFC] Patches for MX3 EHCI support

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Here comes a set of patches to support the EHCI controlles on Freescale's
MX3 SoCs. These processors don't have a PHY directly on-chip but rely on 
external components, hence there is need for some logic to specify the
glue layer which exeeds the standard EHCI register definition.

The MX3s also have the system of ULPI view ports to directly access the
registers of connected transceivers. The patch series comes with a
proposal for an abstraction layer model. This does not yet fully work on
the hardware I'm developing on, and I can't certainly exclude hardware
problems. Hence I'd like to ask everyone with appropriate hardware to
test the patches and see whether the system can communicate with the
1504s, I don't currently see where the problem lies.

More than have of the patches is directly copied (and in some cases
reworked) from Sascha's patchset.

Thanks,
Daniel

[PATCH 1/8] MX31: Add USB platform devices and resources
[PATCH 2/8] MX3: add additional USB pins to iomux
[PATCH 3/8] ehci mxc: Fix clocks
[PATCH 4/8] USB: add slim framework for external transceivers
[PATCH 5/8] MXC: Add support for ULPI Viewports
[PATCH 6/8] Add EHCI support for MX27 and MX31 based boards
[PATCH 7/8] USB: Add xcvr functions for NXP's ISP1504 transceiver
[PATCH 8/8] MX3: add USB support for lilly1131

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