[Letux-kernel] LX20 prototype is booting

[H. Nikolaus Schaller]

> Am 29.04.2025 um 17:40 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> 
> Hi Paul,
> 
>> Am 29.04.2025 um 17:10 schrieb Paul Boddie <paul at boddie.org.uk>:
>> 
>> On Tuesday, 29 April 2025 14:52:03 CEST H. Nikolaus Schaller wrote:
>>> 
>>> With that fixed, I can now boot up to:
>>> 
>>> calibrate_delay_converge()
>>> 
>>> So let's see what happens there (or does not happen but should).
>> 
>> We experienced issues in this area at the end of January 2024, according to my 
>> records. I seemed to make progress with my paulb-letux-6.7-rc8-tcu branch at
> 
> Yes, indeed it looks like a repetition of issues...
> 
>> the time, and I believe that such issues might have been related to interrupt 
>> handling.
> 
> What I wonder is that the sudomaker-6.1.y kernel shows exactly the same issue
> and I assumed that they have it working on the halley5 board...
> 
> Ah, that may be an interesting check: do they have some special trick in the
> halley5.dts?
> 
> Indeed. They define the extclk frequency board specific and have assigned
> clocks for ost32 and ost64. This is something I do not yet have in the lx20.dts
> or "our" x2000.dtsi. And I use the lx20.dts also on the sudomaker kernel...
> 
> Code is compiling for next test.

Now the sudomaker-6.1.y is finishing calibrate_delay_converge() and starts scheduling
and probing drivers :) But still has no console. Stills seems as if we have made a big
step forward.

For the letux-6.15 kernel it appears as if drivers/clk/ingenic/x2000-cgu.c is not
forward-ported yet.

BR,
Nikolaus