[PATCH v2 7/7] doc: ti: k3: Add section for DDR configuration

[Neha Malcom Francis]

On 2025-11-03 15:35:30+01:00, Romain Naour wrote:
> Hello Neha, All,
> 
> Le 03/11/2025 à 08:10, Neha Malcom Francis a écrit :
> 
> > Add a concise section for DDR configuration pointing to the public tool
> > that can be used to generate the configuration DTSI.
> > 
> > Signed-off-by: Neha Malcom Francis <n-francis at ti.com>
> > ---
> > Changes since v1:
> > - new patch
> > 
> >  doc/board/ti/k3.rst | 11 +++++++++++
> >  1 file changed, 11 insertions(+)
> > 
> > diff --git a/doc/board/ti/k3.rst b/doc/board/ti/k3.rst
> > index 01fb9411688..de66b830703 100644
> > --- a/doc/board/ti/k3.rst
> > +++ b/doc/board/ti/k3.rst
> > @@ -649,6 +649,17 @@ Refer (:ref:`U-boot ARMV8 build <k3_rst_include_start_build_steps_uboot>`)
> >     This will need to be explicitly disabled by changing the boot_targets to
> >     disallow fallback during testing.
> >  
> > +DDR Configuration
> > +-----------------
> > +
> > +The K3 DDRSS driver (drivers/ram/k3-ddrss/k3-ddrss.c) configures the DDR during
> > +the R5 SPL stage. The driver utilizes an auto-generated configuration file
> > +containing necessary settings for the DDR. It configures the frequency, timing
> > +parameters, training algorithms etc. for DDR initialization. The configuration
> > +DTSI can be generated using the `Sysconfig tool <https://dev.ti.com/sysconfig>`_
> > +and selecting the software product as "DDR Configuration for \*" as well as the
> > +required device.
> 
> Thanks for promoting the new K3 DDRSS configuration tool (v0.12.00)!
> Until recently, I was still using the old spreadsheet (K3 DDRSS v0.10.0) from
> outdated application note [1].
> 
> The FAQ post [2] is really useful for custom board DDR configuration but
> somewhat difficult to find/notice on e2e forum.
> 
> Note: The K3 DDRSS sysconfig based tool can even be used offline [3].
> 
> [1] https://www.ti.com/lit/an/spracu8b/spracu8b.pdf
> [2]
> https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1482402/faq-tda4vm-tda4x-dra8x-am68x-am69x-lpddr4-topics
> [3]
> https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1378443/processor-sdk-j784s4-tda4ah-offline-ddr-configuration-tool---latest-version/5269621
> 
> Reviewed-by: Romain Naour <romain.naour at smile.fr>


Thank you for reviewing as well as pointing to further documentation. Will take
the feedback on the e2e and have a form of it on public documentation as well!

> 
> Best regards,
> Romain