[U-Boot] [PATCH v4 0/6] Support for the Turris Omnia router

[Andreas Färber]

Am 20.01.2018 um 02:40 schrieb Andreas Färber:
> Hi,
> 
> Am 18.01.2018 um 18:20 schrieb Stefan Roese:
>> On 17.01.2018 16:52, Andreas Färber wrote:
>>> Am 09.06.2017 um 19:28 schrieb Marek Behún:
>>>> This is the fourth version of patches for adding support for the
>>>> Turris Omnia board, a router developed by the CZ.NIC.
>>>
>>> I'm still facing trouble testing turris_omnia on latest v2018.01.
>>>
>>> First, that made me notice there's no README for how to test and deploy.
>>> I'm aware of temporary:
>>> sendbeacon /dev/ttyUSBx
>>
>> I have to admit, that don't know anything about this "sendbeacon"
>> tool.

https://gitlab.labs.nic.cz/turris/misc/tree/master/sendbeacon

>>> ./tools/kwboot -t -B 115200 /dev/ttyUSBx -b u-boot-spl.kwb -p
>>
>> This is what I have used, when I tested / debugged images for
>> Armada XP / 38x. Please note that the init sequence is somewhat
>> "fragile" - so I added the -q and -s parameters, to optionally
>> finetune the startup timings:
>>
>> # kwboot
>> ...
>>   -q <req-delay>:  use specific request-delay
>>   -s <resp-timeo>: use specific response-timeout
>>
>> You might what to play a bit with these parameters as well.
> 
> I saw them but had no idea what to pass as values. ;)
> I did try -a, but it worked with and without.
> 
>> BTW: I don't have access to the Omnia router, so I can't
>> test anything on this specific platform.
>>
>> BTW2: Kosta from Marvell just recently added a new tool / script,
>> to help debug / boot Marvell MVEBU boards:
>>
>> tools/mrvl_uart.sh
>>
>> He told me that its better to use than the "old" kwboot tool.
>> I never found the time to use it up until now, so I have no
>> personal experience. But I'm pretty sure that Kosta did a
>> great job here. So please give it a try.
> 
> I did not get it to work ... or was not patient enough.

It seems, just as with kwboot, the tool alone is not enough. If I use
sendbeacon before and in mrvl_uart.sh just press enter without another
reset, then the transfer does work for me, and if in the script I add -b
$default_baudrate to the minicom line, then I also see useful output.

But it does not affect the reported non-SPL boot breakage, i.e. it still
reboots from SPI immediately after loading from UART.

Regards,
Andreas

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