[PATCH v1] arm: dts: k3-am625-verdin: fix DDRSS configuration

[Francesco Dolcini]

On Tue, Dec 19, 2023 at 09:25:33AM +0100, Francesco Dolcini wrote:
> From: Emanuele Ghidoli <emanuele.ghidoli at toradex.com>
> 
> The current DDR subsystem configuration occasionally results in write failures,
> impacting memory stability, on Verdin AM62 Solo 512MB WB IT 0072 SKU.
> This commit addresses the issue by adjusting Drive Pull-Up/Down and
> Write Latency to improve the eye diagram and ensure reliable write operations.
> This configuration is shared with all Verdin AM62 SoM and
> it does not introduce regressions.
> 
> Configurations changes from previous / default values:
> - Drive Pull-Up/Down from 40 to 34.3 Ohm
> - Write Latency from 8 to 10
> - ODTLon / ODTLoff latency from 0 / 0 to 4 / 20 nCK
> - VREF control range 1 at 27 %
> - tFAW from 30 to 40 ns
> 
> Configuration is output from SysConfig [1] web tool, currently at version
> 1.18.1+3343 (DDR SubSystem v9.10).
> 
> [1] https://dev.ti.com/sysconfig
> 
> Fixes: 7d1a10659f5b ("board: toradex: add verdin am62 support")
> Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli at toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini at toradex.com>

Hello Tom,
would be nice to have this in for v2024.01 (... I know we are pretty close
to the release with winter holidays in between ...).

Thanks,
Francesco