linux-kernel - Re: Resetting USB HC .. During kernel boot

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Message-ID: <Pine.LNX.4.44L0.1009031004180.1548-100000@iolanthe.rowland.org>
Date:	Fri, 3 Sep 2010 10:05:17 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Prabhu Chawandi <prabhu.chavandi@...il.com>
cc:	linux-kernel@...r.kernel.org, <linux-usb@...r.kernel.org>,
	<listar@...linux.org>, <kernelnewbies@...linux.org>
Subject: Re: Resetting USB HC .. During kernel boot

On Fri, 3 Sep 2010, Prabhu Chawandi wrote:

> Hi Alan,
> 
>   I am working on a board, where USB controller is on chip. and this
> has both UHC and EHC.  I have to reset these during the boot up.
> Bootloader does not reset it before handing over control to kernel, I
> am facing crash. So I am planning to reset here in kernel.
> 
> Can you help to locate the file, where this part of the code can be inserted.

No.  All I can tell you is that it will be somewhere in the 
platform-specific code for your board, i.e., somewhere under arch/.

Alan Stern

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