at91sam9263 not booting on 3.12-rc1

DISCUSSION Daniel Lezcano 3 participants 5 messages Sep 23, 2013 – Oct 7, 2013

Share & tools

Daniel Lezcano

author

2013-09-23 20:49 UTC #0 lore raw

Hi all,

I am trying to boot a 3.12-rc1 kernel on a calao USB-sam9263 (used default sam9263 config file) but the board hangs at the message:

"Uncompressing Linux... done, booting the kernel."

After git bisecting, the commit preventing the board to boot is:

--------------------

commit ef1ab239c0c7de29072577bc8a39859074603948

Author: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
Date:   Fri May 24 06:52:06 2013 +0800

ARM: at91: drop non DT: Calao USB-A96x

as now we have full DT support of those board

Signed-off-by Jean-Christophe PLAGNIOL-VILLARD <[email protected]>

Signed-off-by Nicolas Ferre <[email protected]>

----------------------

So I enabled the CONFIG_USE_OF, the dtb are correctly generated.

I tried to boot again, specifying the dtb address with bootm.

tftp 0x20000000 /var/lib/tftpboot/at91/arch/arm/boot/usb_a9263.dtb

tftp 0x21000000 /var/lib/tftpboot/at91/arch/arm/boot/uImage

bootm 0x21000000 - 0x20000000

but without success.

I am wondering what I could be doing wrong ...

Any help would be appreciate.

-- Daniel

ps: u-boot is "U-Boot 2010.09 (Oct 27 2010 - 12:28:54)"

Signature · 5 lines

 <http://www.linaro.org/> Linaro.org ? Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

Fabio Estevam

2013-09-23 21:31 UTC #1 lore raw

Quoted 12 lines · Daniel Lezcano

So I enabled the CONFIG_USE_OF, the dtb are correctly generated.
I tried to boot again, specifying the dtb address with bootm.
tftp 0x20000000 /var/lib/tftpboot/at91/arch/arm/boot/usb_a9263.dtb
tftp 0x21000000 /var/lib/tftpboot/at91/arch/arm/boot/uImage
bootm 0x21000000 - 0x20000000
but without success.

Quoted 8 lines

I am wondering what I could be doing wrong ...
Any help would be appreciate.
-- Daniel
ps: u-boot is "U-Boot 2010.09 (Oct 27 2010 - 12:28:54)"

I am not familiar with this board, but most likely this old U-boot does not support dtb booting.
You can check whether "#define CONFIG_OF_LIBFDT" is included in your board config file.

You could also try to update the bootloader or try to generate a kernel + dtb image (need to select CONFIG_ARM_APPENDED_DTB option in the kernel).

Regards,

Fabio Estevam

Daniel Lezcano

author

2013-09-26 13:27 UTC #2 lore raw

Quoted 24 lines · Fabio Estevam

Quoted 12 lines · Daniel Lezcano
So I enabled the CONFIG_USE_OF, the dtb are correctly generated.
I tried to boot again, specifying the dtb address with bootm.
tftp 0x20000000 /var/lib/tftpboot/at91/arch/arm/boot/usb_a9263.dtb
tftp 0x21000000 /var/lib/tftpboot/at91/arch/arm/boot/uImage
bootm 0x21000000 - 0x20000000
but without success.
Quoted 8 lines
I am wondering what I could be doing wrong ...
Any help would be appreciate.
-- Daniel
ps: u-boot is "U-Boot 2010.09 (Oct 27 2010 - 12:28:54)"

Quoted 8 lines

I am not familiar with this board, but most likely this old U-boot does not support dtb booting.
You can check whether "#define CONFIG_OF_LIBFDT" is included in your board config file.
You could also try to update the bootloader or try to generate a kernel + dtb image (need to select CONFIG_ARM_APPENDED_DTB option in the kernel).

Hi Fabio,

thanks for your answer. It took me awhile to setup everything and find the right tools.

So I tried CONFIG_ARM_APPENDED_DTB but that does not work. I did not give much credit to that as it is flagged experimental.

Then I tried to flash a more recent u-boot but something went wrong. I have still the FlashRom prompt but the ttyACM0 where I can upload the u-boot does not appear anymore on my system.

I am totally stuck at this point ...

Signature · 5 lines

  <http://www.linaro.org/> Linaro.org ? Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

Nicolas Ferre

2013-10-04 14:17 UTC #3 lore raw

Hi Daniel,

On 26/09/2013 15:27, Daniel Lezcano :

Quoted 34 lines · Fabio Estevam

Quoted 24 lines
Quoted 12 lines · Daniel Lezcano
So I enabled the CONFIG_USE_OF, the dtb are correctly generated.
I tried to boot again, specifying the dtb address with bootm.
tftp 0x20000000 /var/lib/tftpboot/at91/arch/arm/boot/usb_a9263.dtb
tftp 0x21000000 /var/lib/tftpboot/at91/arch/arm/boot/uImage
bootm 0x21000000 - 0x20000000
but without success.
Quoted 8 lines
I am wondering what I could be doing wrong ...
Any help would be appreciate.
-- Daniel
ps: u-boot is "U-Boot 2010.09 (Oct 27 2010 - 12:28:54)"
Quoted 8 lines
I am not familiar with this board, but most likely this old U-boot does not support dtb booting.
You can check whether "#define CONFIG_OF_LIBFDT" is included in your board config file.
You could also try to update the bootloader or try to generate a kernel + dtb image (need to select CONFIG_ARM_APPENDED_DTB option in the kernel).

Quoted 7 lines

Hi Fabio,
thanks for your answer. It took me awhile to setup everything and find the right tools.
So I tried CONFIG_ARM_APPENDED_DTB but that does not work. I did not give much credit to that as it is flagged experimental.

Well I managed to use this technique successfully several of times. But maybe you still have to modify the machine ID.

Quoted 5 lines

Then I tried to flash a more recent u-boot but something went wrong. I have still the FlashRom prompt but the ttyACM0 where I can upload the u-boot does not appear anymore on my system.
I am totally stuck at this point ...

I hope that Jean-Christophe can help you with this as he is aware of the Calao boards.

There is probably a way to recover access to the SAM-BA prompt that will allow you to regain access to the flashing process. I have just fount this wiki page:
http://www.calao-systems.com/mediawiki/index.php?title=USB-A9263_Software#How_to_install_SAM-BA_from_buildroot

BTW, I think you should use barebox instead of u-boot as the support should be more complete.

Bye,

Signature · 1 line

Nicolas Ferre

Daniel Lezcano

author

2013-10-07 09:36 UTC #4 lore raw

Quoted 54 lines · Nicolas Ferre

Hi Daniel,
On 26/09/2013 15:27, Daniel Lezcano :
Quoted 34 lines · Fabio Estevam
Quoted 24 lines
Quoted 12 lines · Daniel Lezcano
So I enabled the CONFIG_USE_OF, the dtb are correctly generated.
I tried to boot again, specifying the dtb address with bootm.
tftp 0x20000000 /var/lib/tftpboot/at91/arch/arm/boot/usb_a9263.dtb
tftp 0x21000000 /var/lib/tftpboot/at91/arch/arm/boot/uImage
bootm 0x21000000 - 0x20000000
but without success.
Quoted 8 lines
I am wondering what I could be doing wrong ...
Any help would be appreciate.
-- Daniel
ps: u-boot is "U-Boot 2010.09 (Oct 27 2010 - 12:28:54)"
Quoted 8 lines
I am not familiar with this board, but most likely this old U-boot does not support dtb booting.
You can check whether "#define CONFIG_OF_LIBFDT" is included in your board config file.
You could also try to update the bootloader or try to generate a kernel + dtb image (need to select CONFIG_ARM_APPENDED_DTB option in the kernel).
Quoted 7 lines
Hi Fabio,
thanks for your answer. It took me awhile to setup everything and find the right tools.
So I tried CONFIG_ARM_APPENDED_DTB but that does not work. I did not give much credit to that as it is flagged experimental.
Well I managed to use this technique successfully several of times. But maybe you still have to modify the machine ID.
Quoted 5 lines
Then I tried to flash a more recent u-boot but something went wrong. I have still the FlashRom prompt but the ttyACM0 where I can upload the u-boot does not appear anymore on my system.
I am totally stuck at this point ...

Quoted 7 lines

I hope that Jean-Christophe can help you with this as he is aware of the Calao boards.
There is probably a way to recover access to the SAM-BA prompt that will allow you to regain access to the flashing process. I have just fount this wiki page:
http://www.calao-systems.com/mediawiki/index.php?title=USB-A9263_Software#How_to_install_SAM-BA_from_buildroot

Yeah, I used this link to reflash the USB-A9263 and this is where a I believe I corrupted somehow the bootloader.

I don't know how, but I must find a way to recover the old bootloader.

Quoted 2 lines

BTW, I think you should use barebox instead of u-boot as the support should be more complete.

Ok, good to know. I will look at it.

Thanks
-- Daniel

Signature · 5 lines

  <http://www.linaro.org/> Linaro.org ? Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog