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

[Russell King - ARM Linux]

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).

It's probably a good idea to put some comment in the code to that
effect - people don't generally look at the history when adding new
features.  It's probably also a good idea to claim the GPIO for the
PHY power control and ensure that it's set to 'off' mode - that code
can then be a placeholder for the comment.