>>>>>>> Mainline boots fine if I use console=ttyS1 or drop the console arg
>>>>>>> altogether, but as we don't currently support different boot args per
>>>>>>> tree, and we don't have the manpower to track this patch in all the
>>>>>>> trees we test, we will have to switch to only boot testing mainline
>>>>>>> from now on.
>>>>>> Yes, I've seen the same in Fedora with that patch.
>>>>>>
>>>>>>
>>>>> could you please describe the issue more in detail.
>>>>>
>>>>> Does u-boot or Linux hang? Does u-boot select the wrong UART? Is there a
>>>>> pinmux conflict?
>>>>
>>>> Basically on the RPi3 you use to get ttyAMA0 and ttyS0 but now the
>>>> later is ttyS1
>>>
>>> which UART is which now. It should expose the Bluetooth UART correctly now. 
>>> And also more importantly usable. The only missing piece with 4.14 would be 
>>> the DT assigned for serdev. While 4.14 would still require a call to 
>>> btattach, starting with 4.15 that should no longer be needed.
>>
>> Looks to be ttyAMA0
>>
>> [    4.480469] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 72,
>> base_baud = 0) is a PL011 rev2
>> [    4.497401] serial serial0: tty port ttyAMA0 registered
>>
>> With 4.14 I get the following, the address doesn't look right, do you
>> have a link to the serdev patch headed to 4.15?
>
> https://github.com/anholt/linux/commit/fd3372db18d3d44ae4579243a8eacb5247d8c03a

We already have that one included in the Fedora kernel, I wonder what
else I'm doing wrong.

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