[ECOS] strucking up in infinite loop for IXP 425

sumanth.kondlada@wipro.com sumanth.kondlada@wipro.com
Fri Mar 3 04:52:00 GMT 2006



Hi Andrew

           thanks for your help Andrew

           I have changed the address from 20000 to 0 location as given
in
           manual as per your sugessition in .mlt and .ldi files with
this
           I am able to continue upto cyg_hal_plf_pci_init , I am
strucking
           at pci , I am strucked up at this call 

           HAL_PCI_CFG_WRITE_UINT32(0, 0, CYG_PCI_CFG_BAR_1,
0x01000000);
  
           are there any pointers at this situation that can help me

Thanks & regards,
Sumanth.


-----Original Message-----
From: Andrew Lunn [mailto:andrew@lunn.ch]
Sent: Tuesday, February 28, 2006 4:35 PM
To: Sumanth Kumar Kondlada (WT01 - Product Engineering Solutions)
Cc: ecos-discuss@ecos.sourceware.org
Subject: Re: [ECOS] strucking up in infinite loop for IXP 425

On Tue, Feb 28, 2006 at 02:15:38AM -0800, sumanth wrote:
>
> Hi,
>
>               we are porting  ecos for ixp425 we have flashed the
> image as per the sugessition in the forum but we are running in the
> infinite loop at this point
>
> icache_boundary:
>         // Here is where we switch from boot address (0x000000000) to
the
>         // actual flash runtime address. We align to cache boundary so
we
>         // execute from cache during the switchover. Cachelines are 8
words.
>         str     r1, [r2, #IXP425_EXP_CNFG0]    // make the EXP bus
switch
>         nop
>         nop
>         nop
>         nop
>    ----> mov     pc, r0
>         nop
>
>   where the instruction says pc value to load into r0 is at the same
> location and it goes into infinite loop and never stops execution
>  
>                                   if i change the pc to ignore the
> step mov pc,r0 then the code is allowing single stepping but the
> instruction is not getting effected
>  
> can any one help out to sort this problem.

You probably have your memory map wrong in the linker file .mlt.  What
address are you linking the image to run at.

        Andrew


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