[External]Re: Uboot upgrade from 2016 to 2020

[Sinan Akman]

Hi Alex

On 2025-10-16 01:26, Manea, Alexandru (Alexandru) wrote:
> Hi Sinan,
> 
> First thanks for replying. I do hope you will be able to help me a bit.
> The board is PPCE5500 used for Avaya IP500L platform.
> 
> What I noticed for hanging is that it hangs when setting mtspr    IVPR, r0 in start.s although this seems correct: CONFIG_SYS_MONITOR_BASE at h
> 
> Regards,
> Alex
> 
> From: Sinan Akman <sinan at writeme.com>
> Sent: Thursday, October 16, 2025 3:00 AM
> To: Tom Rini <trini at konsulko.com>; Manea, Alexandru (Alexandru) **CTR** <amanea at avaya.com>
> Cc: u-boot at lists.denx.de
> Subject: [External]Re: Uboot upgrade from 2016 to 2020
> 
> [External Sender]
> Hi Alexandru On 2025-10-15 18: 19, Tom Rini wrote: > On Tue, Oct 14, 2025 at 10: 21: 37AM +0000, Manea, Alexandru (Alexandru) wrote: > >> Hi, >> >> I have an issue with upgrading our sources to use the 2020. 04 uboot rather
> 
> 
> Hi Alexandru
> 
> 
> 
> On 2025-10-15 18:19, Tom Rini wrote:
> 
>> On Tue, Oct 14, 2025 at 10:21:37AM +0000, Manea, Alexandru (Alexandru) wrote:
> 
>>
> 
>>> Hi,
> 
>>>
> 
>>> I have an issue with upgrading our sources to use the 2020.04 uboot rather than the one working now on our system which is 2016.
> 
>>> After adding all our board changes, I can see the SPL loading and setting DDR and TLB entries but once it tries to jump to uboot from mmc_boot() it hangs and I can't get to see anything...has anyone encountered this? Is there something I can do to make sure uboot is actually being jumped to or why the hang? I've set the offsets to go to the _start_e500: instructions like the old uboot. I can share the traces I have if needed. Looking forward to an answer.
> 
>>
> 
>> There might have been some issue with certain PowerPC platforms
> 
>> introduced after the v2016.xx releases and fixed later than v2020.04,
> 
>> and git log might help. Of course, it would be better still if you could
> 
>> move to current mainline and then help with PowerPC maintenance, as we
> 
>> do need more people helping there. Thanks.
> 
>>
> 
> 
> 
> 
> 
> Which board is this for ?
> 


I don't have access to P50x0 or T10x0 boards to test and debug this
but I might try to see if I can get my hands on a T1040RDB or one of
your boards (e.g. IP500L). As Tom mentioned any help you can provide
is definitely very welcome here in this area.

-- sinan