[REGRESSION] Re: [PATCH v11 00/11] Add support for dynamic MMU configuration

[Francesco Dolcini]

Hello Anshul,

On Fri, Oct 17, 2025 at 06:45:22PM +0530, Anshul Dalal wrote:
> Hi all,
> 
> In U-Boot, TI only provides a single memory map for all k3 platforms, this
> does not scale for devices where atf and optee lie outside the range 0x80000000
> - 0x80080000 and 0x9e780000 - 0xa0000000 respectively.
> 
> There are also issues for devices with < 2GiB of memory (eg am62SiP with 512MiB
> of RAM) as the maximum size for the first DRAM bank is hardcoded to 2GiB in the
> current memory map. Furthermore the second DRAM bank is mapped even for devices
> that only have a single bank.
> 
> Therefore this patch set adds the required functionality to create the MMU table
> at runtime based on the device-tree.
> 
> The patch set has been build tested on all effected platforms but boot-tested
> only on TI's K3 EVMs, the beagleplay and phytec's phycore-am6* platforms.
> 
> The following effected boards have not been boot tested:
>  - verdin-am62

it seems that this series introduce a regression on verdin-am62, I have
not done a bi-sect yet, but we run daily build of U-Boot master and the
regressions seems to have started when this patch series was
merged.

On verdin-am62 we detect the RAM size at run-time, see
board/toradex/verdin-am62/verdin-am62.c:dram_init(), and now we always
get 2GiB even for modules with only 512MB or 1024MB of memory.

I'll try to find sometime to bi-sect this, but maybe you already have
some suggestion on what to look for.

Thanks
Francesco