Dear Wolfgang,
On 06/28/2014 01:44 PM, Wolfgang Denk wrote:
Dear J�rg,
In message <53adfff5.7050...@posteo.de> you wrote:
I applied this series of patches on top of a patch from Stephen Warren
from 2014-06-23: [PATCH] usb: ci_udc: fix interaction with
CONFIG_USB_ETH_CDC.
Now my USB Ethernet driver does not work anymore. I am using tfpd for
downloading files over USB Ethernet Gadget from my notebook to an
Freescale i.MX28 board.
It is definitely not wise to testseveral independent changes at once,
as you will never know which of them (or any interacton between these)
caused the problem.
I understand.
Since commit 2813006fecdab740c3745b2dcbb06777cdd51dff on u-boot-imx
branch the USB Ethernet driver on my custom i.MX28 board is broken. I
cannot use tftp for downloading a file. The patch from Stephen Warren
fixed most (but not all) problems with the driver.
I strongly recommend to apply only one of these patches iitially, then
test it, and only if it works, then apply the second patch (series)
Stephen Warren, Marek Vasut and I am trying to figure out, why USB
Ethernet driver is broken since the stated commit. One assumption of
Stephen Warren was that is has something to do with mtd or ubifs. That's
why I am reporting this.
This is the error message:
=> run update_rootfs
Updating rootfs ...
using ci_udc, OUT ep- IN ep- STATUS ep-
high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
ERROR: The remote end did not respond in time.
at drivers/usb/gadget/ether.c:2383/usb_eth_init()
It would have been helpful to show the actual commands here, instead
of referring to "update_rootfs" the definition of which is unknown to
us. In any case, this looks like a USB gadget driver related issue,
which is independent from Heiko's changes. So I think you wpuld have
seen the same problem when testing Stephen's patch alone. You should
do that, and eventually report the problem against the "usb: ci_udc:
fix interaction..." patch.
That's right. I already reported the problem to Stephen Warren.
The mtd, ubi, ubifs update appears to be innocent here.
Seems so. Maybe I will revert the patches from Stephen Warren to the
commit where my USB Ethernet driver worked well and apply the mtd, ubi,
ubifs patches for testing.
Best regards,
Wolfgang Denk
Best regards
Jörg Krause
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