From: nicolas.ferre@atmel•com (Nicolas Ferre)
To: linux-arm-kernel@lists•infradead.org
Subject: at91sam9263 not booting on 3.12-rc1
Date: Fri, 4 Oct 2013 16:17:47 +0200 [thread overview]
Message-ID: <524ECE0B.5040200@atmel.com> (raw)
In-Reply-To: <5244364E.5060103@linaro.org>
Hi Daniel,
On 26/09/2013 15:27, Daniel Lezcano :
> On 09/23/2013 11:31 PM, Fabio Estevam wrote:
>> On Mon, Sep 23, 2013 at 5:49 PM, Daniel Lezcano
>> <daniel.lezcano@linaro•org> wrote:
>>
>>> 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)"
>>
>> 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.
Well I managed to use this technique successfully several of times. But
maybe you still have to modify the machine ID.
> 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,
--
Nicolas Ferre
next prev parent reply other threads:[~2013-10-04 14:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-23 20:49 at91sam9263 not booting on 3.12-rc1 Daniel Lezcano
2013-09-23 21:31 ` Fabio Estevam
2013-09-26 13:27 ` Daniel Lezcano
2013-10-04 14:17 ` Nicolas Ferre [this message]
2013-10-07 9:36 ` Daniel Lezcano
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