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RE: [microblaze-uclinux] PetaLinux and ML505, revisited


Hi all,

Ok, I've checked my Ethernet core, and checked that I have a Gigabit card in my PC.  It turns out I had my ethernet jumpers on the board set to SGMII, which is not what I was trying to use.  So I changed my jumpers, set my PC line speed to 100 Mb/s, and now my ethernet works.  

On to the next problem.  I have now transferred images to the board and written them to flash.  When I reboot the board, it looks like it's going to boot, but hangs right after "New klimit: 0x502a7000", and just before I should get a "Linux version 2.6.XX...." message.  I'm stumped again.  I've googled as many related keywords as I can think of, and can't find anything.  Any ideas?

Thanks so much, Gerd and Michal.  I wouldn't be this far if not for your help.

Justin






"Theidel Gerd" <gerd.theidel@xxxxxx>
Sent by: owner-microblaze-uclinux@xxxxxxxxxxxxxx

08/07/2007 02:48 AM

Please respond to
microblaze-uclinux@xxxxxxxxxxxxxx
To
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RE: [microblaze-uclinux] PetaLinux and ML505, revisited





Hi,

I have done the first tests with OPB-EMAC and with OPB-EMACLITE; both
worked
with U-Boot but I did not get a very stable connection under uClinux
Kernel 2.4.
Than I wrote a proprietary core, because I want to to send additional
highspeed data
from the FPGA bypassing the processor. As first test I connected the
TEMAC to an
FS-Link of the microblaze and wrote some small drivers for U-Boot and
Linux. This connection
is very stable, but the performance is not so high, because I do not use
DMA.


Justin:
I did not discover the problems you have described, but one idea:
Do you have a gigabit ethernet-card in your PC? Than you have to
set it to 100 Mbit before connecting it to the ML505. I suggest to
use Wireshark (www.wireshark.org) to see if the ML505 sends some
packets...

Regards,
Gerd





-----Original Message-----
From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of Michal
Simek
Sent: Samstag, 4. August 2007 09:51
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] PetaLinux and ML505, revisited

Hi,

What ethernet core are you using? EMAC, EMACLITE, TEMAC or proprietary.
If you are using emaclite you can try my emaclite driver for U-BOOT. It
is in microblaze mainline at denx.de. (drivers/net/xilinx_emaclite.c)
Emaclite needs my edk repository file for configuring that you can find
at www.monstr.eu.

If you are using EMAC I can send you development version of new driver.

TEMAC isn't porting to U-BOOT yet.

And proprietary ethernet core is only your fight.

I recommend you to use tcpdump or ethereal for scanning your ethernet
port on HOST. You can see all packets and analyze where is the problem.

Regards,
Michal Simek



> Gerd,
>
> I thought I had done the changes in your thread.  But it seems I
> missed that one line.  This did fix my problem with locked flash.
Thank you.
>
> Now I don't think my Ethernet is working.  The status lights on the
> board blink when there is activity from the PC side, but no blinking
> when I try to ping or tftp from the board.  I am using a crossover
> cable connected directly from the ML505 board to the CentOS 4 PC.  The

> PC is configured for a static IP address of 192.168.0.1, and is also
running a DHCP server.
> If I try to TFTP, the serverip and ipaddr variables are not set, and
> when I set them, it locks up.  I have tried 'setenv ipaddr
> 192.168.0.2' and also 'dhcp'.  The latter locks up the U-Boot and
> nothing happens.  Have you seen this problem before?
>
> The next step I'm trying is to get the u-boot-s.bin file tftp'ed to
> the system.  The aforementioned tutorial says to do this with
>
> U-Boot> tftp $(clobstart) u-boot-s.bin
>
> That's when  I find out that the serverip and ipaddr variables are not

> set.  And when I set them to sane values, tftp locks up.  I've tried
> loading the u-boot-s.bin file over kermit, but that just resets the
> processor.  I assumed I could send it the same way I sent the
> ub.config.img file, with
>
> U-Boot> loadb $(clobstart)
> Ctrl\c
> C-Kermit> send /bin /tftpboot/u-boot-s.bin connect
>
> But that's when I get the FS-Boot prompt again, saying Waiting for
> SREC image.
>
> Any ideas from here?
>
> Thanks,
>
> Justin
>
>
>
>
>
>
> "Theidel Gerd" <gerd.theidel@xxxxxx>
> Sent by: owner-microblaze-uclinux@xxxxxxxxxxxxxx
> 08/03/2007 03:04 AM
> Please respond to
> microblaze-uclinux@xxxxxxxxxxxxxx
>
>
> To
> <microblaze-uclinux@xxxxxxxxxxxxxx>
> cc
>
> Subject
> RE: [microblaze-uclinux] PetaLinux and ML505, revisited
>
>
>
>
>
>
> Hi Justin,
>
> have you done the changes, I descibed in the Thread "PetaLinux on
ML505"?
> Inserting
>
> #define CFG_FLASH_PROTECTION
>
> in the file u-boot\include\configs\petalogix-microblaze-auto.h
> solved the problem for me.
>
> Regards,
> Gerd
>
> From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
> [mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of
> jlmoon@xxxxxxxxxxxxxxxxxxx
> Sent: Donnerstag, 2. August 2007 16:36
> To: microblaze-uclinux@xxxxxxxxxxxxxx
> Subject: Re: [microblaze-uclinux] PetaLinux and ML505, revisited
>
>
> This didn't seem to change anything.  I tried setting the environment
> variable 'unlock' to yes or no, to see what that would do.  Set at
> yes, the ub.config.img script runs the same as before.  Set to no, the

> script says "## Executing script at 50000000", and nothing else.
>
> Any other ideas?  I'm stumped.
>
> Thanks,
>
> Justin
>
>
>
>
> Hi,
>
>> Flash erase error at address XXXXXXXX Block Erase Error, Block
>> locked.
>>
>> And it repeats that message for all blocks attempted.
>
> you can try to turn on support for hardware flash protection. I think
> you have only software protection.
> #define CFG_FLASH_PROTECTION /* hardware protection */
>
> Regards,
> Michal Simek
>
>
>
>
>
>> Hi all,
>>
>> I'm trying to revive efforts to get PetaLinux working on a Xilinx
>> ML505 board.  I've read all the posts from the last 3 months that are

>> at all related, and have made some progress.  Things are still not
>> working though.  My framework has been the PetaLinux Platform From
>> Scratch tutorial found at
>> http://developer.petalogix.com/wiki/BoardGuides/Custom/Tutorial.  I'm

>> using petalinux-v0.2.0-rc3, ISE 9.1.03, and EDK 9.1.02 with all
>> relevant updates.  I have made whatever tweaks and adjustments have
>> been needed
> to
>> get everything to compile and work to this point.  Some of those
>> tweaks have been documented elsewhere, and others I made up on the
>> fly.  If you have questions about what I've done, please ask, and
>> I'll rack my brains to remember what I did.
>>
>> --As a side note, excellent work from the Petalogix group.  Thank
you.
>>
>> In my current configuration, I can load the FPGA, and FS_Boot comes
>> up looking for an image.  There is not an image in flash, so it waits

>> for
> one
>> to be sent.  I send the U-Boot image through kermit, and that works
> fine.
>> The U-Boot prompt comes up, and I have access to all the commands it
>> provides.  I can send the ub.config.img file just fine, but the
>> problem I'm facing comes when I try to run that script.  Everything
>> works until
> it
>> tries to mess with the flash memory.  It says I have locked blocks in
> the
>> flash.  The exact output is as follows:
>>
>> PetaLogix MicroBlaze-Auto Board Configuration
>> ---------------------------------------------------------------------
>> --
>> Network Configuration:
>> MTD Configuration:
>> Clobber DRAM Configuration:
>> Bootloader Configuration:
>> Kernel Configuration:
>> Boot Configuration:
>> Saving Configurations...
>> Saving Environment to Flash...
>> Un-Protected 1 sectors
>> Erasing Flash...
>> Flash erase error at address 4a040000 Block Erase Error.
>> Block locked.
>> done
>> Erased 1 sectors
>> U-Boot>
>>
>>
>> I have tried just about everything I can think of to test this flash
>> memory from the U-Boot prompt.  I can use protect off and on, and
>> flinfo shows me that protection turns on and off, but any time I try
>> erase, it
>> says:
>>
>> Flash erase error at address XXXXXXXX Block Erase Error, Block
>> locked.
>>
>> And it repeats that message for all blocks attempted.
>>
>> I'd appreciate any suggestions on this.
>>
>> Thanks,
>>
>> Justin Moon
>
>
>
>


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