Re: [REGRESSION] Verdin AM62/62P not booting with 42b3ee7fa524

[Francesco Dolcini <francesco@dolcini.it>]

Hello Suhaas,

On Wed, Feb 18, 2026 at 07:59:20AM +0100, Francesco Dolcini wrote:
> On Tue, Feb 17, 2026 at 06:51:50PM +0530, Suhaas Joshi wrote:
> > On 11:20-20260213, Francesco Dolcini wrote:
> > > On Wed, Feb 11, 2026 at 04:51:09PM +0530, Suhaas Joshi wrote:
> > > > On 11:11-20260211, Francesco Dolcini wrote:
> > > > > On Tue, Feb 10, 2026 at 11:50:14AM +0100, Francesco Dolcini wrote:
> > > > > > On Mon, Feb 09, 2026 at 02:20:01PM -0600, Bryan Brattlof wrote:
> > > > > > > Do you mind copying a boot log to a pastebin for me? I thought I had one 
> > > > > > > of these boards but I'm still digging around for it. 0x80000000 should 
> > > > > > > be where we load TFA now days unless some boards have opted out of 
> > > > > > > letting U-Boot move it to the bottom of DRAM
> > > > > > 
> > > > > > Here some more logs
> > > > > > 
> > > > > > https://gist.github.com/dolcini/aa4b669c6349cc6da1b9e7b19cf53fed
> > > > > > 
> > > > > > The files are named with the commit sha that is tested.
> > > > > > 
> > > > > > On Tue, Feb 10, 2026 at 02:56:46PM +0530, Suhaas Joshi wrote:
> > > > > > > Verdin boards are the only ones that are reporting this issue. Is it
> > > > > > > alright if we revert only the two Verdin-specific commits, and let the
> > > > > > > rest (TI and PhyCore ones) stay as they are? The patches are pretty
> > > > > > > un-connected to each other.
> > > > > > 
> > > > > > Verdin AM62 should not have anything special, the code is all there for
> > > > > > everyone to see, including the defconfig, the DT and so on, and the changes
> > > > > > we are talking about to me are self contained withing the SoC. Something
> > > > > > is wrong, and we are not understanding what yet.
> > > > > > 
> > > > > > I just retested once more 42b3ee7fa524 and it just hung, you never know
> > > > > > if I did something wrong. And for what matter this was spotted by our
> > > > > > CI.
> > > > > > 
> > > > > > > We are working on figuring out why Verdin is seeing these issues, in the
> > > > > > > meantime.
> > > > > > 
> > > > > > Anything I can do let me know.
> > > > > > 
> > > > > > If it matter the board that I am currently testing has 1GiB DDR RAM, and
> > > > > > the SoC is a AM6252ATCGHAALW. 
> > > > > 
> > > > > I was able to trace the issue to the get_ram_size() in
> > > > > verdin-am62.c:dram_init().
> > > > > 
> > > > > That function walks the addressable memory range to dynamically detect
> > > > > how much memory is available.
> > > > > 
> > > > > Not sure on the proper way to fix it however, Bryan? Suhaas?
> > > > 
> > > > Yes, this does seem to be the issue, even in my digging. I have sent a
> > > > patch to fix this. But since I don't have boards, I have not tested
> > > > this. Could you please test this and let us know if it works, or if
> > > > there are any other issues that pop up?
> > > 
> > > With commit f9ffeec4bdcf ("board: toradex: Make A53 get RAM size from DT
> > > in K3 boards") merged we had our CI running on our whole board farm
> > > last night.
> > > 
> > > Good news: the issue is confirmed to be fixed on Verdin AM62P and Verdin
> > > AM62 [Quad|Dual] with [1|2]GB RAM.
> > 
> > That's great!
> > > 
> > > Bad news: we we do still have a boot failure regression on Verdin AM62
> > > single core with 512MB RAM. I have no idea if this is the same issue or
> > > a different one, but from the logs it look different (despite that I
> > > decided to keep using this email thread and not start a new one).
> > > 
> > > The failing board from the logs uses a AM6231ASGGHAALW SoC, maximum
> > > frequency 1GHz, we also have another device failing, single core again,
> > > with maximum frequency 800MHz, the working one have 1.4GHz max
> > > frequency.
> > > 
> > > Worth noticing the errors
> > >   Failed to set clock rates
> > > 
> > > These are new compared to the previous U-Boot release, it affects also
> > > other boards, and I have no idea if this is related to this issue or not.
> > > 
> > > Logs of the failing device (U-Boot is commit f9ffeec4bdcf1da655a0ffea482062adde78fee8)
> > > 
> > > U-Boot SPL 2026.04-rc2-0.0.0-devel+git.f9ffeec4bdcf (Feb 12 2026 - 14:12:09 +0000)
> > > SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.9--v11.02.09 (Fancy Rat)')
> > > Failed to set clock rates for '/a53@0': -22
> > > SPL initial stack usage: 13456 bytes
> > > Trying to boot from MMC1
> > > Authentication passed
> > > Authentication passed
> > > Authentication passed
> > > Loading Environment from nowhere... OK
> > > init_env from device 9 not supported!
> > > Warning: Did not detect image signing certificate. Skipping authentication to prevent boot failure. This will fail on Security Enforcing(HS-SE) devices
> > > 
> > 
> > I don't think this one is related to the firewall series. Not really
> > sure what the issue is. Just to rule this series out -- could you drop
> > my patch(es) and check if this specific device boots?
> > 
> > Was this device booting earlier? Could it be a build misconfig, since it
> > says that it can't detect an image signing certificate?
> 
> This is a regression with 2026.04. 2026.04-rc never booted on this device, and
> before commit f9ffeec4bdcf1da655a0ffea482062adde78fee8 none of the verdin
> am62[p] variants were booting for multiple bugs that were present in the
> release.
> 
> 2026.01 is booting fine on this device, with plain vanilla U-Boot.

The issue is still there, and it seems again related with your changes.

Can you help? Any test that I should do?



v2026.01 booting fine
=====================

U-Boot SPL 2026.01 (Feb 18 2026 - 12:12:15 +0100)
SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5--v11.02.05 (Fancy Rat)')
Changed A53 CPU frequency to 800000000Hz (K grade) in DT
SPL initial stack usage: 13512 bytes
Trying to boot from MMC1
Authentication passed
Authentication passed
Authentication passed
Loading Environment from nowhere... OK
init_env from device 9 not supported!
Authentication passed
Authentication passed
Starting ATF on ARM64 core...

NOTICE:  BL31: v2.13.0(release):v2.13.0-259-ge0c4d3903b-dirty
NOTICE:  BL31: Built : 07:01:36, Jul  1 2025

U-Boot SPL 2026.01 (Feb 18 2026 - 12:12:38 +0100)
SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5--v11.02.05 (Fancy Rat)')
SPL initial stack usage: 2048 bytes
Trying to boot from MMC1
Authentication passed
Authentication passed


U-Boot 2026.01 (Feb 18 2026 - 12:12:38 +0100)

SoC:   AM62X SR1.0 HS-FS
Reset reason: POR
DRAM:  512 MiB
optee optee: OP-TEE: revision 4.7 (a9690ae39995af36)
Core:  159 devices, 34 uclasses, devicetree: separate
MMC:   mmc@fa10000: 0, mmc@fa00000: 1
Loading Environment from MMC... Reading from MMC(0)... OK
In:    serial@2800000
Out:   serial@2800000

2026.04, commit 3243a73102c3 ("Merge branch 'master' of
https://source.denx.de/u-boot/custodians/u-boot-sh"), booting fine
=================================================================


U-Boot SPL 2026.04-rc1-00199-g3243a73102c3 (Feb 18 2026 - 15:38:33 +0100)
SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5--v11.02.05 (Fancy Rat)')
Failed to set clock rates for '/a53@0': -22
SPL initial stack usage: 13512 bytes
Trying to boot from MMC1
Authentication passed
Authentication passed
Authentication passed
Loading Environment from nowhere... OK
init_env from device 9 not supported!
Authentication passed
Authentication passed
Starting ATF on ARM64 core...

NOTICE:  BL31: v2.13.0(release):v2.13.0-259-ge0c4d3903b-dirty
NOTICE:  BL31: Built : 07:01:36, Jul  1 2025

U-Boot SPL 2026.04-rc1-00199-g3243a73102c3 (Feb 18 2026 - 15:38:57 +0100)
SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5--v11.02.05 (Fancy Rat)')
SPL initial stack usage: 2048 bytes
Trying to boot from MMC1
Authentication passed
Authentication passed


U-Boot 2026.04-rc1-00199-g3243a73102c3 (Feb 18 2026 - 15:38:57 +0100)

SoC:   AM62X SR1.0 HS-FS
Reset reason: POR
DRAM:  512 MiB
optee optee: OP-TEE: revision 4.7 (a9690ae39995af36)
Core:  160 devices, 35 uclasses, devicetree: separate
MMC:   mmc@fa10000: 0, mmc@fa00000: 1
Loading Environment from MMC... Reading from MMC(0)... OK
In:    serial@2800000
Out:   serial@2800000
Err:   serial@2800000
Model: Toradex 0071 Verdin AM62 Solo 512MB V1.2A


2026.04, current master, commit 8666b16015d4, NOT working
=========================================================


U-Boot SPL 2026.04-rc2-00033-g8666b16015d4 (Feb 18 2026 - 15:05:31 +0100)
SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5--v11.02.05 (Fancy Rat)')
Failed to set clock rates for '/a53@0': -22
SPL initial stack usage: 13464 bytes
Trying to boot from MMC1
Authentication passed
Authentication passed
Authentication passed
Loading Environment from nowhere... OK
init_env from device 9 not supported!
Authentication passed
Authentication passed
Starting ATF on ARM64 core...

NOTICE:  BL31: v2.13.0(release):v2.13.0-259-ge0c4d3903b-dirty
NOTICE:  BL31: Built : 07:01:36, Jul  1 2025

U-Boot SPL 2026.04-rc2-00033-g8666b16015d4 (Feb 18 2026 - 15:05:54 +0100)
SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5--v11.02.05 (Fancy Rat)')




Thanks,
Francesco