Linux issues on Xilinx XUPV2P board
Alan Casey
alan.casey5 at mail.dcu.ie
Fri Aug 15 22:34:28 EST 2008
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
>>>>
>>>>
>>>
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