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

From: Rob Herring (Arm)
Date: Fri Apr 11 2025 - 13:18:15 EST



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@xxxxxxxxxxx>
> ---
> .../memory-controllers/st,stm32mp25-omm.yaml | 226 +++++++++++++++++++++
> 1 file changed, 226 insertions(+)
>

Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>