From mboxrd@z Thu Jan  1 00:00:00 1970
From: tony@atomide.com (Tony Lindgren)
Date: Tue, 28 Oct 2014 15:11:25 -0700
Subject: USB Ethernet gadget on Nokia n900
In-Reply-To: <20141028220450.GA27667@amd>
References: <20141019090107.GA19132@amd> <201410262222.39892@pali>
 <20141026215548.GA9004@amd> <201410262323.17891@pali>
 <20141027195209.GP2560@atomide.com>
 <20141027223114.GU2560@atomide.com> <20141028220450.GA27667@amd>
Message-ID: <20141028221124.GT2542@atomide.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

* Pavel Machek <pavel@ucw.cz> [141028 15:06]:
> Hi!
> 
> > Here's a patch that should fix the issues for built-in USB
> > gadgets.
> > 
> > Pavel, care to see if this gets NFSroot over USB working again
> > for you?
> 
> It seems to have did the trick for me. (Plus I needed to add
> 
> +CONFIG_ARM_ATAG_DTB_COMPAT=y
> +CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
> +# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
> 
> to be able to control the command line, that's why testing took me a
> while.)

Hmm I think I have a patch somewhere here to enable the standard
bootz command for n900 mainline u-boot.. That way you can just do

# bootz ${loadaddr} - ${fdtaddr}
 
> Networking now works against 3.17-based kernel. Thanks!

Right on! Ideally the gadget probe would be event driven and called
after USB controller driver probe. But that would mean keeping a
list of all the gadgets as Felipe told me.
 
> Tested-by: Pavel Machek <pavel@ucw.cz>

Thanks for testing,

Tony