[U-Boot] Compile failure encountered on latest (2017-07-20) git://git.denx.de/u-boot-usb.git branch master for target ls1021atwr_nor_defconfig

[Ran Wang]

Hi Bin

> -----Original Message-----
> From: Bin Meng [mailto:bmeng.cn at gmail.com]
> Sent: Wednesday, July 26, 2017 12:41 PM
> To: Ran Wang <ran.wang_1 at nxp.com>
> Cc: Marek Vasut <marex at denx.de>; Patrice Chotard <patrice.chotard at st.com>;
> Simon Glass <sjg at chromium.org>; Masahiro Yamada
> <yamada.masahiro at socionext.com>; Jiafei Pan <jiafei.pan at nxp.com>; u-
> boot at lists.denx.de; Xiaobo Xie <xiaobo.xie at nxp.com>
> Subject: Re: Compile failure encountered on latest (2017-07-20)
> git://git.denx.de/u-boot-usb.git branch master for target
> ls1021atwr_nor_defconfig
> 
> Hi Ran,
> 
> On Wed, Jul 26, 2017 at 11:30 AM, Ran Wang <ran.wang_1 at nxp.com> wrote:
> > Hi Bin
> >> -----Original Message-----
> >> From: Bin Meng [mailto:bmeng.cn at gmail.com]
> >> Sent: Tuesday, July 25, 2017 8:22 PM
> >> To: Ran Wang <ran.wang_1 at nxp.com>
> >> Cc: Marek Vasut <marex at denx.de>; Patrice Chotard
> >> <patrice.chotard at st.com>; Simon Glass <sjg at chromium.org>; Masahiro
> >> Yamada <yamada.masahiro at socionext.com>; Jiafei Pan
> >> <jiafei.pan at nxp.com>; u- boot at lists.denx.de; Xiaobo Xie
> >> <xiaobo.xie at nxp.com>
> >> Subject: Re: Compile failure encountered on latest (2017-07-20)
> >> git://git.denx.de/u-boot-usb.git branch master for target
> >> ls1021atwr_nor_defconfig
> >>
> >> Hi Ran,
> >>
> >> On Tue, Jul 25, 2017 at 7:01 PM, Ran Wang <ran.wang_1 at nxp.com> wrote:
> >> >> -----Original Message-----
> >> >> From: Bin Meng [mailto:bmeng.cn at gmail.com]
> >> >> Sent: Friday, July 21, 2017 8:29 PM
> >> >> To: Ran Wang <ran.wang_1 at nxp.com>
> >> >> Cc: Marek Vasut <marex at denx.de>; Patrice Chotard
> >> >> <patrice.chotard at st.com>; Simon Glass <sjg at chromium.org>; Masahiro
> >> >> Yamada <yamada.masahiro at socionext.com>; Jiafei Pan
> >> >> <jiafei.pan at nxp.com>; u- boot at lists.denx.de
> >> >> Subject: Re: Compile failure encountered on latest (2017-07-20)
> >> >> git://git.denx.de/u-boot-usb.git branch master for target
> >> >> ls1021atwr_nor_defconfig
> >> >>
> >> >> Hi Ran,
> >> > Hi Bin.
> >> >>
> >> >> On Thu, Jul 20, 2017 at 5:47 PM, Ran Wang <ran.wang_1 at nxp.com>
> wrote:
> >> >> > Hi All,
> >> >> >     Actually I just plan to try feature of support SS hub which
> >> >> > just enabled this
> >> >> yesterday on LS1021ATWR (I know need to enable DM_USB for 1021 first).
> >> >>
> >> >> Should the DM_USB enablement be this patch done by Alison?
> >> >> https://patchwork.ozlabs.org/patch/785387/
> >> >>
> >> >> >     Per your knowledge, if I revert the patches I pasted in last
> >> >> > mail,  the SS hub
> >> >> support feature will be impacted or not?
> >> >> >     Thanks.
> >> >>
> >> >> Note the SS hub support only exists in DM USB. If you revert the
> >> >> dwc3-xhci patchset which converts dwc3 to DM USB, you will not get
> >> >> the SS
> >> hub support.
> >> > Thanks for your information, I will re-check this impact with my board.
> >> > Actually I have encountered enumeration random fail issue with an
> >> > USB
> >> > 3.0 thumb drive (Kingston DataTraveler 3.0) after SS hub Please see
> >> > attached
> >> snapshot for details. Fail rate is about 9/30. Not sure it's relevant
> >> to SS hub patch or not yet.
> >> >>
> >>
> >> Can you enable the -DDEBUG and send me the log? From the last
> >> attachment, the enumeration process already failed when getting
> >> device descriptor. Any subsequent op leads to the final BUG/reset.
> >
> > I don't know where to add -DDEBUG in U-Boot Makefile, could you show me?
> >
> > Anyway I've added DEBUG in file include/common.h and got some verbose
> > log for you (seems not much in error point), pls see attached. Any
> > further suggestion are welcome.
> 
> Thanks for the log. Can you try to do the same testing on u-boot-x86/xhci-wip
> branch to see if makes any difference? If no, please send the DEBUG log as well.

Seems failure changed a little bit, and fail rate rise to ~100%.
> Regards,
> Bin

BR
Ran
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