Re: [PATCH 13/18] ARM: dts: Use simple-pm-bus for genpd for am3 l4_wkup

Morning Tony & All,

On Thu, 2021-01-14 at 09:20 +0200, Tony Lindgren wrote:

* Tony Lindgren [off-list ref] [210113 17:30]:

quoted

* Tony Lindgren [off-list ref] [210113 16:48]:

quoted

* Geert Uytterhoeven [off-list ref] [210113 16:42]:

quoted

On Wed, Jan 13, 2021 at 5:23 PM Tony Lindgren <tony@atomide.com

quoted

wrote:
Strange, bbb has been working for me with NFSroot, that's
with
omap2plus_defconfig. Care to send your .config so I can give
it a
try tomorrow?

Sent by private email.

OK thanks.

quoted

Just tried omap2plus_defconfig, and it also hangs during boot.

Hmm and I just tried and bbb still boots NFSroot for me at commit
5a230524f879 ("ARM: dts: Use simple-pm-bus for genpd for am3
l4_wkup").

quoted

Hmm OK. Will give it a try tomorrow.

Not sure why your bbb would produce all the deferred probe while mine
won't.

However, I've noticed that we need the following patch on omap4/5 and
dra7 when playing with updating them to use genpd.

Maybe this also fixes your boot issue if you can give it a try?

I do also experience the boot problem described by Geert.

Head being:
b0625afe305253d0831af9289b37c906c18a781b
ARM: OMAP2+: Drop legacy platform data for am3 mpuss

=> BBB boots Ok.

Head being:
5a230524f87926f24d637fe62fd689f7f86f5036
ARM: dts: Use simple-pm-bus for genpd for am3 l4_wkup

=> BBB boot fails. (I don't have any debug parameters => last thing I
see in UART is from uBoot:

Bytes transferred = 89849 (15ef9 hex)
Kernel image @ 0x81000000 [ 0x000000 - 0x928200 ]
## Flattened Device Tree blob at 82000000
   Booting using the fdt blob at 0x82000000
   Using Device Tree in place at 82000000, end 82018ef8

Starting kernel ...

Head being 

5a230524f87926f24d637fe62fd689f7f86f5036 + this patch 
ARM: dts: Use simple-pm-bus for genpd for am3 l4_wkup (+ patch)
Boot still fails for me.

Please note - my environment takes the intermediate build result file:
arch/arm/boot/dts/.am335x-boneblack.dtb.dts.tmp

and compiles this with '-@' to allow further overlays.

Best Regards
	Matti Vaittinen