[PATCH v9 1/3] dt-bindings: memory-controllers: Add STM32 Octo Memory Manager controller

Rob Herring (Arm) robh at kernel.org
Fri Apr 11 10:09:45 PDT 2025


On Thu, 10 Apr 2025 11:27:42 +0200, Patrice Chotard wrote:
> Add bindings for STM32 Octo Memory Manager (OMM) controller.
> 
> OMM manages:
>   - the muxing between 2 OSPI busses and 2 output ports.
>     There are 4 possible muxing configurations:
>       - direct mode (no multiplexing): OSPI1 output is on port 1 and OSPI2
>         output is on port 2
>       - OSPI1 and OSPI2 are multiplexed over the same output port 1
>       - swapped mode (no multiplexing), OSPI1 output is on port 2,
>         OSPI2 output is on port 1
>       - OSPI1 and OSPI2 are multiplexed over the same output port 2
>   - the split of the memory area shared between the 2 OSPI instances.
>   - chip select selection override.
>   - the time between 2 transactions in multiplexed mode.
> 
> Signed-off-by: Patrice Chotard <patrice.chotard at foss.st.com>
> ---
>  .../memory-controllers/st,stm32mp25-omm.yaml       | 226 +++++++++++++++++++++
>  1 file changed, 226 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh at kernel.org>




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