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Date: Fri, 15 Aug 2008 01:43:37 -0700 (PDT)
From: wangyanlong <killyouatonce@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: Linux issues on Xilinx XUPV2P board
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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@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> 
> 

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