[Letux-kernel] [PATCH 00/20] A bunch of JZ4730 fixups for letux-kernel

[H. Nikolaus Schaller]

> Am 26.11.2020 um 23:22 schrieb Paul Boddie <paul at boddie.org.uk>:
> 
> On Thursday, 26 November 2020 20:06:12 CET H. Nikolaus Schaller wrote:
>> Hi Paul and Lubomir,
>> 
>>> Paul<0001-Added-missing-TCU-declarations-for-the-JZ4730.patch>
>> 
>> a little late but you still deserve many thanks!
>> 
>> I have added it but see no difference. I just see Starting Kernel... and
>> then some watchdog reboots.
> 
> One thing that may be different, at least when you can monitor the log,

unfortunately not (yet)... Do you have ideas how to enable it?

> is the 
> following line:
> 
>  [    0.000000] timer_probe: no matching timers found
> 
> Then again, searching for any reports about this leaves me unconvinced that it 
> might be a problem. In Lubomir's log output, the next line is this...
> 
>  [    0.000000] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps 
> every 21474836475000000ns
> 
> Maybe this indicates that the lack of timer assignments won't be a problem 
> because scheduling is done using other timers.

Well, if the UART doesn't get clock or something, it is only possible to
find the reason by JTAG. But I assume since Lubomir could boot that my
setup is just missing something to make the (early) console messages appear
on the serial interface. For example the file name is wrong.

Hm, wait. I think there was a change around v5.0 that the boot console name
can/must be defined in the root node of the DT... At least for ARM. Have to
check that.

BR,
Nikolaus