linux-kernel - Regression 3.11-rc1: omap4panda: no usb and consequently no ethernet

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Date:	Thu, 18 Jul 2013 10:41:08 +0200
From:	"Arend van Spriel" <arend@...adcom.com>
To:	tony@...mide.com
cc:	linux-omap@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Roger Quadros" <rogerq@...com>
Subject: Regression 3.11-rc1: omap4panda: no usb and consequently no
 ethernet

Hi Tony,

We are using the panda board (es variant) for testing our SDIO based 
chips. For this we have an adapter card connection to expansion 
connector A. As this adapter is not publicly available we had internally 
patched board-omap4panda.c. Also we follow the -rc releases and use TFTP 
to boot the kernel image which requires USB.

Moving to 3.11-rc1 I found that the mentioned board file was removed by 
your commit:

commit b42b918194c4791510ac049e3d507169a7de8544
Author: Tony Lindgren <tony@...mide.com>
Date:   Thu May 30 12:53:05 2013 -0700

     ARM: OMAP2+: Remove board-omap4panda.c

As our patches on that file are internal I do not hold it against you. 
This is no regression and we need to fix it.

So my first step was to follow the recipe given in that commit. Beside 
that I noticed a thread about USB issue on LKML so I also applied the 
following commit:

commit 352f573e59050c7a604c35c58b4bbfc51edebbee
Author: Roger Quadros <rogerq@...com>
Date:   Tue Jun 18 19:04:47 2013 +0300

     ARM: OMAP2+: Provide alias to USB PHY clock

The attached kernel log seems to suggest that the device tree is picked 
up by the kernel, but the USB does not seem very active. No ethernet 
connectivity. This does seem a regression to me. Is there some other 
patch that I need to get it going again?

Regards,
Arend

View attachment "panda-dtb-append.log" of type "text/plain" (15444 bytes)

View attachment "panda-es-config" of type "text/plain" (70419 bytes)