From: "Rob Herring (Arm)" <robh@kernel.org>
To: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com,
christophe.kerello@foss.st.com, linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Will Deacon <will@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Conor Dooley <conor+dt@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
devicetree@vger.kernel.org
Subject: Re: [PATCH v9 1/3] dt-bindings: memory-controllers: Add STM32 Octo Memory Manager controller
Date: Fri, 11 Apr 2025 12:09:45 -0500 [thread overview]
Message-ID: <174439138531.3430719.4031301893879549125.robh@kernel.org> (raw)
In-Reply-To: <20250410-upstream_ospi_v6-v9-1-cf119508848a@foss.st.com>
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@foss.st.com>
> ---
> .../memory-controllers/st,stm32mp25-omm.yaml | 226 +++++++++++++++++++++
> 1 file changed, 226 insertions(+)
>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
next prev parent reply other threads:[~2025-04-11 17:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-10 9:27 [PATCH v9 0/3] Add STM32MP25 SPI NOR support Patrice Chotard
2025-04-10 9:27 ` [PATCH v9 1/3] dt-bindings: memory-controllers: Add STM32 Octo Memory Manager controller Patrice Chotard
2025-04-11 17:09 ` Rob Herring (Arm) [this message]
2025-04-10 9:27 ` [PATCH v9 2/3] memory: Add STM32 Octo Memory Manager driver Patrice Chotard
2025-04-15 6:00 ` Krzysztof Kozlowski
2025-04-22 8:37 ` Patrice CHOTARD
2025-04-10 9:27 ` [PATCH v9 3/3] MAINTAINERS: add entry for STM32 OCTO MEMORY MANAGER driver Patrice Chotard
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