Re: beaglebone black boot failure Linux v5.15.rc1

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Hi dee Ho peeps & Thanks.

On 9/17/21 15:36, Grygorii Strashko wrote:


On 17/09/2021 14:34, Vaittinen, Matti wrote:
Thanks a lot guys!

On 9/17/21 14:01, Grygorii Strashko wrote:


On 17/09/2021 13:57, Grygorii Strashko wrote:


On 17/09/2021 13:28, Vaittinen, Matti wrote:
Hi deeee Ho Tony & All,

On 9/17/21 09:14, Tony Lindgren wrote:
Hi,

* Vaittinen, Matti <Matti.Vaittinen@xxxxxxxxxxxxxxxxx> [210916 09:15]:

My beaglebone black (rev c) based test environment fails to boot with
v5.15-rc1. Boot succeeds with the v5.14.
I added initcall_debug && changed the pr_debug() to pr_err() in
really_probe_debug(). Log from that run is attached. The
omap_reset_deassert() was not instrumented to print/delay for this run.

can you try just disable pruss_tm in am335x-bone-common.dtsi?


I did try:

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi index 0ccdc7cd463bc62812f0f2797adb0f7bff1bd1b1..538af3fa0e6361923b40598fd33637c868298a83 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -402,5 +402,5 @@ &rtc {
 };

 &pruss_tm {
-	status = "okay";
+	status = "disabled";
 };

and the boot did no longer produce an oops.

NFS mount still hung. It took me a while to dig out that the cpsw_new.c was not compiled with my config. The TI_CPSW_SWITCHDEV was not set.

I did set the TI_CPSW_SWITCHDEV=y after which the bbb booted-up. Enabling the pruss_tm still produces an oops.

Finally, adding the udelay(100); (as Tony suggested) at the end of the omap_reset_deassert() did make the oops go away even when pruss_tm was enabled. I don't know what would be a proper fix though.

Best Regards
	Matti Vaittinen



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