[U-Boot] [PATCH] usb: ci_udc: fix interaction with CONFIG_USB_ETH_CDC

Jörg Krause
2014-06-28T20:37:35Z

On 06/28/2014 09:59 PM, Marek Vasut wrote:

> I would actually be really glad if you could test plain u-boot-usb/master and
> see if your USB problem is present there. Also, it would be really nice to
> isolate the sequence of commands which triggers the bug, so we have a proper
> reproducible testcase.
>
> Anyway, this thread is not a place where I would like to discuss this. This
> should be discussed in the "original" thread, that is:
>
> Subj: [PATCH] usb: ci_udc: fix interaction with CONFIG_USB_ETH_CDC

I cloned u-boot-usb/master and tested it. I am running "tftpd
rootfs.ubifs" several times. Here is the log (I shortened the loading
process bar):

HTLLCLLC

U-Boot 2014.07-rc3-g18e0313 (Jun 28 2014 - 22:17:52)

CPU: Freescale i.MX28 rev1.2 at 454 MHz
BOOT: NAND, 3V3
DRAM: 64 MiB
NAND: 128 MiB
In: serial
Out: serial
Err: serial
Net: usb_ether [PRIME]
Hit any key to stop autoboot: 0
=> tftp rootfs.ubifs
using ci_udc, OUT ep- IN ep- STATUS ep-
MAC 00:19:b8:00:00:02
HOST MAC 00:19:b8:00:00:01
high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
USB network up!
Using usb_ether device
TFTP from server 10.0.0.1; our IP address is 10.0.0.2
Filename 'rootfs.ubifs'.
Load address: 0x40008000
Loading: [snip]
##############################################################T ###
[snip]
1.7 MiB/s
done
Bytes transferred = 13205504 (c98000 hex)
=> tftp rootfs.ubifs
using ci_udc, OUT ep- IN ep- STATUS ep-
MAC 00:19:b8:00:00:02
HOST MAC 00:19:b8:00:00:01
high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
USB network up!
Using usb_ether device
TFTP from server 10.0.0.1; our IP address is 10.0.0.2
Filename 'rootfs.ubifs'.
Load address: 0x40008000
Loading:
#################################################################
[snip]
5.6 MiB/s
done
Bytes transferred = 13205504 (c98000 hex)
=> tftp rootfs.ubifs
using ci_udc, OUT ep- IN ep- STATUS ep-
MAC 00:19:b8:00:00:02
HOST MAC 00:19:b8:00:00:01
high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
USB network up!
Using usb_ether device
TFTP from server 10.0.0.1; our IP address is 10.0.0.2
Filename 'rootfs.ubifs'.
Load address: 0x40008000
Loading:
#################################################################
[snip]
5.6 MiB/s
done
Bytes transferred = 13205504 (c98000 hex)
=> tftp rootfs.ubifs
using ci_udc, OUT ep- IN ep- STATUS ep-
MAC 00:19:b8:00:00:02
HOST MAC 00:19:b8:00:00:01
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:2388/usb_eth_init()
=>

The error always appears after calling tftp the third time! The first
two runs work fine, but the third one always fails. I run this test
about 20 times.

Best regards
J?rg Krause