Linux issues on Xilinx XUPV2P board
Alan Casey
alan.casey5 at mail.dcu.ie
Sat Aug 16 00:36:20 EST 2008
Hi John,
Im not having any problems using GIT. I can download
2.6.26 using git no problem - i think wangyanlong
would like to use 2.6.24 or 2.6.26 and he has problems
downloading it using git - hence i replied to him that
he may find more info about how to download the current
or previous version on git.xilinx.com. I think you misread
my email.
The Xilinx Framebuffer driver works fine in Linux 2.6.24
but there appears to be a problem with one of the Linux-2.6.26
versions which i posted about a few weeks/months ago.
Alan.
>-- Original Message --
>Subject: RE: Linux issues on Xilinx XUPV2P board
>Date: Fri, 15 Aug 2008 08:30:25 -0600
>From: John Linn <John.Linn at xilinx.com>
>To: <alan.casey5 at mail.dcu.ie>,
> "wangyanlong" <killyouatonce at gmail.com>,
> <linuxppc-embedded at ozlabs.org>
>
>
>Hi Alan,
>
>I'm assuming you must not have Git installed from the question,
>otherwise you would be using git clone as the site shows.
>
>On the http://git.xilinx.com, it says the following,
>
>Users without Git installed may create a tar file by using the snapshot
>feature. Select the tree view of the repository (far right side) on this
>page, then select snapshot (near the top) and a gziped tar file will be
>created and downloaded.
>
>Is this what you're looking for?
>
>-- John
>
>> -----Original Message-----
>> From:
>> linuxppc-embedded-bounces+john.linn=xilinx.com at ozlabs.org
>> [mailto:linuxppc-embedded-bounces+john.linn=xilinx.com at ozlabs.
>> org] On Behalf Of Alan Casey
>> Sent: Friday, August 15, 2008 6:34 AM
>> To: wangyanlong; linuxppc-embedded at ozlabs.org
>> Subject: Re: Linux issues on Xilinx XUPV2P board
>>
>> Hi,
>>
>> I used version 2.6.24. Current version is 2.6.26+ but im
>> not sure how to download previous versions from the git
>> tree, there should be some info at http://git.xilinx.com
>> about how to do this.
>>
>> Regards,
>> Alan.
>>
>> >-- Original Message --
>> >Date: Fri, 15 Aug 2008 04:35:01 -0700 (PDT)
>> >From: wangyanlong <killyouatonce at gmail.com>
>> >To: linuxppc-embedded at ozlabs.org
>> >Subject: Re: Linux issues on Xilinx XUPV2P board
>> >
>> >
>> >
>> >Hi Alan
>> > I dow load the kernel from "
>> >http://git.xilinx.com/cgi-bin/gitweb.cgi?p=linux-2.6-xlnx.git
>> ;a=summary
>> "
>> >
>> >Merge ../../linux-2.6 into 2.6.26-merge master commit |
>> commitdiff | tree
>> >| snapshot
>> >
>> >this version ,but it not work well,which version you downloaded?
>> >
>> >Many thanks
>> >yanlong
>> >
>> >
>> >Alan Casey wrote:
>> >>
>> >> Hi,
>> >>
>> >> Yes i had a problem with using one of the Linux 2.6.26
>> >> kernel versions on the XUPV2P board where the VGA
>> >> display has not driven correctly, not sure why.
>> >> The Linux 2.6.24 kernel from git.xilinx.com works fine.
>> >>
>> >> Regards,
>> >> Alan.
>> >>
>> >>
>> >>>-- Original Message --
>> >>>Date: Fri, 15 Aug 2008 01:43:37 -0700 (PDT)
>> >>>From: wangyanlong <killyouatonce at gmail.com>
>> >>>To: linuxppc-embedded at ozlabs.org
>> >>>Subject: Re: Linux issues on Xilinx XUPV2P board
>> >>>
>> >>>
>> >>>
>> >>>I meet the problem as yours . And my vga's display is not
>> clear , have
>> >> you
>> >>>meet this?
>> >>>
>> >>>Alan Casey wrote:
>> >>>>
>> >>>> Hi,
>> >>>>
>> >>>> I have tried running the Linux 2.6.24 and Linux 2.6.26
>> kernels from
>> >>
>> >>>
>> >>>> git.xilinx.com on the Xilinx XUPV2P board but have run
>> into a few
>> >>>> problems.
>> >>>>
>> >>>> Cross-compiler i use to compile applications was built using
>> >>>> Crosstools
>> >>>> and
>> >>>> based on gcc 3.3.4. I use Xilinx EDK 7.1 for
>> integrating hardware
>> >>>> peripherals
>> >>>> onto the board.
>> >>>>
>> >>>> The problems i've seen are:
>> >>>>
>> >>>> (i) gettimeofday software function returns time of 0
>> all the time.
>> >>>>
>> >>>> (ii) The Linux 2.6.24 kernel's Xilinx Framebuffer
>> driver and/or the
>> >>>> Xilinx
>> >>>>
>> >>>> PLB TFT Controller IP block
>> (plb_tft_cntlr_ref_v1_00_d) does
>> not
>> >>>> appear
>> >>>>
>> >>>> to centre the display on a VGA screen properly(vertically
>> >>>> offset).
>> >>>>
>> >>>> (iii) 64-bit write/read access to peripheral
>> integrated onto the
>> >>>> Xilinx
>> >>>>
>> >>>> Virtex-II Pro FPGA either causes a system crash
>> or only lower
>> >> part
>> >>>>
>> >>>> of 32-bit data to be written (i.e. lower part of
>> 64-bit data
>> >>>> appears
>> >>>> to be mirrored on the upper and lower 32-bits of
>> the system
>> >>>> bus).
>> >>>> However, 32-bit write/read access to the
>> peripheral passes as
>> >> well
>> >>>> as 64-bit write/read access to the SDRAM memory
>> address space.
>> >>>> Peripheral interface has been verified to be IBM
>> PLB compliant
>> >>>
>> >>>> via IBM bus functional model simulations.
>> >>>>
>> >>>> (iv) The Linux 2.6.26 Xilinx Framebuffer driver on
>> the Xilinx XUPV2P
>> >>>> board
>> >>>>
>> >>>> does not appear to be working - nothing displayed to
>> >>>> screen/console
>> >>>>
>> >>>> not switching to framebuffer device on bootup.
>> >>>>
>> >>>> Just wondering if anybody has seen these issues
>> before and know how
>> >>>to
>> >>>> resolve them?
>> >>>>
>> >>>> Any info. appreciated,
>> >>>> Regards,
>> >>>> Alan.
>> >>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> _______________________________________________
>> >>>> Linuxppc-embedded mailing list
>> >>>> Linuxppc-embedded at ozlabs.org
>> >>>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>> >>>>
>> >>>>
>> >>>
>> >>>--
>> >>>View this message in context:
>> >http://www.nabble.com/Linux-issues-on-Xilinx-XUPV2P-board-tp1
>> 8262250p18995644.html
>> >>>Sent from the linuxppc-embedded mailing list archive at Nabble.com.
>> >>>
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>> >>
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>> >
>> >--
>> >View this message in context:
>> http://www.nabble.com/Linux-issues-on-Xilinx-XUPV2P-board-tp18
>> 262250p18997255.html
>> >Sent from the linuxppc-embedded mailing list archive at Nabble.com.
>> >
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