From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] omap4: 4430sdp: drop ehci support
Date: Wed, 16 Feb 2011 17:42:10 -0800 [thread overview]
Message-ID: <20110217014210.GL20795@atomide.com> (raw)
In-Reply-To: <20110216112631.GA2497@legolas.emea.dhcp.ti.com>
* Felipe Balbi <balbi@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@ti.com>
> > Cc: Keshava Munegowda <keshava_mgowda@ti.com>
> > Cc: Tony Lindgren <tony@atomide.com>
>
> Tony, if you want to queue this one directly, here's my:
>
> Acked-by: Felipe Balbi <balbi@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
next prev parent reply other threads:[~2011-02-17 1:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-16 11:17 [PATCH 1/2] omap4: 4430sdp: drop ehci support Anand Gadiyar
2011-02-16 11:17 ` [PATCH 2/2] omap4: 4430sdp: mux GPIO_157 to safe mode Anand Gadiyar
2011-02-16 11:26 ` [PATCH 1/2] omap4: 4430sdp: drop ehci support Felipe Balbi
2011-02-17 1:42 ` Tony Lindgren [this message]
2011-02-17 7:47 ` Felipe Balbi
2011-02-17 7:49 ` Felipe Balbi
2011-02-17 11:49 ` Russell King - ARM Linux
2011-02-17 14:04 ` Anand Gadiyar
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