Subject: RE: Linux issues on Xilinx XUPV2P board

From: "Alan Casey" <[email-masked]>
Date: Fri, 15 Aug 2008 15:36:20 +0100

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 <[email-masked]>
>To: <[email-masked]>,
>	"wangyanlong" <[email-masked]>,
>	<[email-masked]>
>
>
>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=[email-masked] 
>> [mailto:linuxppc-embedded-bounces+john.linn=xilinx.com@ozlabs.
>> org] On Behalf Of Alan Casey
>> Sent: Friday, August 15, 2008 6:34 AM
>> To: wangyanlong; [email-masked]
>> 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 <[email-masked]>
>> >To: [email-masked]
>> >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 <[email-masked]>
>> >>>To: [email-masked]
>> >>>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
>> >>>> [email-masked]
>> >>>> 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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>> http://www.nabble.com/Linux-issues-on-Xilinx-XUPV2P-board-tp18
>> 262250p18997255.html
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>> >
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