[PATCH 1/2] omap4: 4430sdp: drop ehci support

Tony Lindgren tony at atomide.com
Wed Feb 16 20:42:10 EST 2011


* Felipe Balbi <balbi at ti.com> [110216 03:25]:
> On Wed, Feb 16, 2011 at 04:47:19PM +0530, Anand Gadiyar wrote:
> > Most revisions of the OMAP4 Blaze/SDP platform do not have
> > the EHCI signals routed by default. The pads are routed
> > for the alternate HSI functionality instead, and explicit
> > board modifications are needed to route the signals to
> > the USB PHY on the board.
> > 
> > Also, turning on the PHY connected to the EHCI port causes
> > a board reboot during bootup due to an unintended short
> > on the rails - this affects many initial revisions of the
> > board, and needs a minor board mod to fix (or as a
> > workaround, one should not attempt to power on the
> > USB PHY).
> > 
> > Given that these boards need explicit board mods to even
> > get EHCI working (separate from the accidental short above),
> > we should not attempt to enable EHCI by default.
> > 
> > So drop the EHCI support from the board files for the
> > Blaze/SDP platforms.
> > 
> > Signed-off-by: Anand Gadiyar <gadiyar at ti.com>
> > Cc: Keshava Munegowda <keshava_mgowda at ti.com>
> > Cc: Tony Lindgren <tony at atomide.com>
> 
> Tony, if you want to queue this one directly, here's my:
> 
> Acked-by: Felipe Balbi <balbi at ti.com>
> 
> if you wish, I can send you a pull request as well. I already have
> another patch for you anyway.

OK if you have more I'd rather pull.

Tony



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