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 <redacted>
To: linuxppc-embedded@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:

quoted

Hi,

  I have tried running the Linux 2.6.24 and Linux 2.6.26 kernels from

quoted

  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 Crossto=

ols

quoted

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 no=

t

quoted

appear

       to centre the display on a VGA screen properly(vertically offse=

t).

quoted

  (iii) 64-bit write/read access to peripheral integrated onto the Xil=

inx

quoted

        Virtex-II Pro FPGA either causes a system crash or only lower

part

quoted

        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 bu=

s).

quoted

        However, 32-bit write/read access to the peripheral passes as

well

quoted

        as 64-bit write/read access to the SDRAM memory address space.=

quoted

        Peripheral interface has been verified to be IBM PLB compliant=

quoted

        via IBM bus functional model simulations. 

   (iv) The Linux 2.6.26 Xilinx Framebuffer driver on the Xilinx XUPV2=

P

quoted

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

quoted

   resolve them?

   Any info. appreciated,
   Regards,
   Alan.

  


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