XUPV2P, Kernel 2.6.17 boot problem

Dear all,
I am currently trying to get the 2.6.17.1 Linux kernel
running on the Xilinx Virtex. I have the 2.4 kernel up
and running - No problems there...

But when using the 2.6 kernel (have copied xparameters file,
patched for using TEMAC driver) with the same hardware configuration
the following happens:


loaded at:     00400000 0061813C
board data at: 00616124 0061613C
relocated to:  00405148 00405160
zimage at:     0040585D 00615F42
avail ram:     00619000 20000000

Linux/PPC load: console=ttyS0,9600.....

Uncompressing Linux...inflate returned FFFFFFFB
exit


Now, I am not really sure where to start searching for the bug
(I just want to implement some drivers - not the kernel itself ;-).
The zImage.elf file is about 2MB large. Did anyone encounter
a similar error? Does anyone have some hints where to
look at for debugging, or what might be wrong?

Thanks in advance
Best regards
-- 
Benjamin Heyne

Try this if it helps!

http://www.linux.get2knowmore.com/

-Ameet

Benjamin Heyne wrote:

Dear all,
I am currently trying to get the 2.6.17.1 Linux kernel
running on the Xilinx Virtex. I have the 2.4 kernel up
and running - No problems there...

But when using the 2.6 kernel (have copied xparameters file,
patched for using TEMAC driver) with the same hardware configuration
the following happens:


loaded at:     00400000 0061813C
board data at: 00616124 0061613C
relocated to:  00405148 00405160
zimage at:     0040585D 00615F42
avail ram:     00619000 20000000

Linux/PPC load: console=ttyS0,9600.....

Uncompressing Linux...inflate returned FFFFFFFB
exit


Now, I am not really sure where to start searching for the bug
(I just want to implement some drivers - not the kernel itself ;-).
The zImage.elf file is about 2MB large. Did anyone encounter
a similar error? Does anyone have some hints where to
look at for debugging, or what might be wrong?

Thanks in advance
Best regards

Benjamin Heyne wrote:

Dear all,
I am currently trying to get the 2.6.17.1 Linux kernel
running on the Xilinx Virtex. I have the 2.4 kernel up
and running - No problems there...

But when using the 2.6 kernel (have copied xparameters file,
patched for using TEMAC driver) with the same hardware configuration
the following happens:


loaded at:     00400000 0061813C
board data at: 00616124 0061613C
relocated to:  00405148 00405160
zimage at:     0040585D 00615F42
avail ram:     00619000 20000000

Linux/PPC load: console=ttyS0,9600.....

Uncompressing Linux...inflate returned FFFFFFFB
exit

  

    Zlib was upgraded with 2.6.17. The updated Zlib is broken on ppc32.
I am pretty certain it is fixed in 2.6.18-rc3

Now, I am not really sure where to start searching for the bug
(I just want to implement some drivers - not the kernel itself ;-).
The zImage.elf file is about 2MB large. Did anyone encounter
a similar error? Does anyone have some hints where to
look at for debugging, or what might be wrong?

Thanks in advance
Best regards
  

-- 
Dave Lynch 					  	    DLA Systems
Software Development:  				         Embedded Linux
717.627.3770 	       dhlii@dlasys.net 	  http://www.dlasys.net
fax: 1.253.369.9244 			           Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too
numerous to list.

"Any intelligent fool can make things bigger and more complex... It
takes a touch of genius - and a lot of courage to move in the opposite
direction."
Albert Einstein

quoted

quoted

quoted

quoted

"DHL" == David H Lynch [off-list ref] writes:

quoted

Linux/PPC load: console=ttyS0,9600.....

Uncompressing Linux...inflate returned FFFFFFFB exit

DHL>     Zlib was upgraded with 2.6.17. The updated Zlib is broken on
DHL> ppc32.  I am pretty certain it is fixed in 2.6.18-rc3

No, that was ony added in 2.6.18-rc1 (and the fix was only added
post-rc3), so that can't be it..

-- 
Bye, Peter Korsgaard

Peter Korsgaard wrote:

quoted

quoted

quoted

quoted

quoted

"DHL" == David H Lynch [off-list ref] writes:
            

quoted

quoted

Linux/PPC load: console=ttyS0,9600.....

Uncompressing Linux...inflate returned FFFFFFFB exit

      

DHL>     Zlib was upgraded with 2.6.17. The updated Zlib is broken on
DHL> ppc32.  I am pretty certain it is fixed in 2.6.18-rc3

No, that was ony added in 2.6.18-rc1 (and the fix was only added
post-rc3), so that can't be it..
  

    I am not sure of the details, but I had the exact same problem, I
used "git bisect" to isolate it.
    and it bisected down to the Zlib patch I backed that out and I was
able to go from 2.6.16.21. all the way to 2.6.18-rc2.
    I beleive there is another problem of some kind that effects Xilinx
ppc's that went in and got fixed between 2.6.16.21 and 2.6.18-rcx.
    Though my symptoms were different for that one, and I was never able
to isolate it because even though I could not get 2.6.17 to work,
    The stuff in the 2.6 git tree did.
   
    Have you tried 2.6.18.x to see if your stuff works with it ?




-- 
Dave Lynch 					  	    DLA Systems
Software Development:  				         Embedded Linux
717.627.3770 	       dhlii@dlasys.net 	  http://www.dlasys.net
fax: 1.253.369.9244 			           Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too numerous to list.

"Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
Albert Einstein

quoted

quoted

quoted

quoted

"David" == David H Lynch [off-list ref] writes:

Hi,

David>     Have you tried 2.6.18.x to see if your stuff works with it
David> ?

Yes, 2.6.18-rc3 + my zlib fix
(http://thread.gmane.org/gmane.linux.kernel/428436) or -rc4 once it
hits kernel.org works fine on my v2p-based board.

-- 
Bye, Peter Korsgaard

And so it came to pass, that on Mon, 07 Aug 2006 09:40:14 +0200
Peter Korsgaard [off-list ref] wrote as thus:

quoted

quoted

quoted

quoted

quoted

"David" == David H Lynch [off-list ref] writes:

Hi,

David>     Have you tried 2.6.18.x to see if your stuff works with it
David> ?

Yes, 2.6.18-rc3 + my zlib fix
(http://thread.gmane.org/gmane.linux.kernel/428436) or -rc4 once it
hits kernel.org works fine on my v2p-based board.

Well, unfortunately I am still getting the inflate error
as soon as the image grows >2MB (about). Have you tried with
images of this size? If the image is smaller, everything works
fine...

Best regards
Benjamin Heyne

Hi all,
despite having problems with zlib, I'd like to know which
device drivers for the XUPV2P have already been ported
to the 2.6 kernel? - I don't want to do work twice ;-).

For practicing, I just ported the original Xilinx ENET 100MBit
driver (seems to work in FIFO mode, including MII - At least I
can mount and use a NFS root file system)...but that has probably
already been done elsewhere. I saw that work is going on for 
the SystemACE. - So what about VGA, AC97, PS/2, SATA?

Best regards
Benjamin Heyne

Hi Benjamin,
    I had ported the ENET driver but it was a bit buggy. Could you send 
me your driver patch so I can test it?

Thanks,
-Ameet

Benjamin Heyne wrote:

Hi all,
despite having problems with zlib, I'd like to know which
device drivers for the XUPV2P have already been ported
to the 2.6 kernel? - I don't want to do work twice ;-).

For practicing, I just ported the original Xilinx ENET 100MBit
driver (seems to work in FIFO mode, including MII - At least I
can mount and use a NFS root file system)...but that has probably
already been done elsewhere. I saw that work is going on for 
the SystemACE. - So what about VGA, AC97, PS/2, SATA?

Best regards
Benjamin Heyne
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Linuxppc-embedded@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-embedded

And so it came to pass, that on Mon, 07 Aug 2006 17:03:22 +0100
Ameet Patil [off-list ref] wrote as thus:

Hi Benjamin,
    I had ported the ENET driver but it was a bit buggy. Could you send 
me your driver patch so I can test it?

Hi,
I have put all necessary files into an archive. I have implemented
the driver into a patched version of the 2.6.18-rc3 kernel, so
I thought it would be the best to provide all modified files in an
archive (also, I am not familiar with generating patches and stuff... ;-).
Please feel free to provide a "real" patch.

Ok, here we go:

http://www.dt.e-technik.uni-dortmund.de/mitarbeiter/heyne/xilinx/xilinx_emac_26.zip

Be warned:
This driver probably can be considered as BadHack(TM) -
It's the first one I am providing to the public. So if
you have any suggestions for improving it, please tell me.

TODO (As far as I can tell):
	- Make it a real platform device
	- Make use of the XILINX_EDK config of the TEMAC driver patch
	  (Btw.: Will this be officially integrated into the kernel?).

Any feedback will be appreciated...

Best regards
-- 
Benjamin Heyne