From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8AB211F461D; Fri, 11 Apr 2025 17:09:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744391387; cv=none; b=SrWgs2ribOOwwHVO9zsXFr7U9BfQF0YdqsCRXmpYpTwxKOnQxbIXxSlIFObF/rd307glh1PBNalY2MZAO8Jr2KKnKgXwRQidSkJtaRC8nb8yCW4F0LqhxRI0N/Hia/yljM5o1u+khywPMCLUMwJOpEdhYHv38DdJAM6pwh0Yg3w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744391387; c=relaxed/simple; bh=CYf2lwADdkdY+jMx3e4q4vSSDlVFa9/AluyS7+Ilp+E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rZu4rVigAUzk13bUkqDfWi1PeFnfbHxO08r0xQsCvhhRRzinG1mDo+NxIijh1K45YJsdb1G5YhrUDoEfAxBV2q2eMdvFJ1N8jyh9MLc2egFpKQJ2DBk2HH9kaC3nQmOL+UgLIO4eVcL5aecFZ8JtONctG5vo4vkpVCcyO2CMPr4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HHD9ESS+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HHD9ESS+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C8125C4CEE2; Fri, 11 Apr 2025 17:09:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744391387; bh=CYf2lwADdkdY+jMx3e4q4vSSDlVFa9/AluyS7+Ilp+E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HHD9ESS+Wwm07AxSNelkTJuvoioLtFD/zyYbdBJegPnHeWQW4ILRIfX810X/SF2Th mqBsyyHWBxewvFX8KzEphYORGbHG8XRsaZAQMKrSBUEEN/5EgNVLezQpNsIafBYo5Q M+96DadKU1NiZGtkOJLqQb7P8yyJ5CRFKnn70nzMl1NgXaOA0gJVydU9O0TEHelxbo OMBMgc/Oi7LMLXoNouhMUfIT614+1KptJAbBPCHzdRoZzlldf6xdYdZefJoYZ0a6bh ZAHfjBt/oj67vxnb22tW/XP1245yi7vOlGDIfSQ1M2nWeXkcyRg0iRJLbNyMY2u6cr mYLK13XvZDIJA== Date: Fri, 11 Apr 2025 12:09:45 -0500 From: "Rob Herring (Arm)" To: Patrice Chotard Cc: linux-stm32@st-md-mailman.stormreply.com, christophe.kerello@foss.st.com, linux-kernel@vger.kernel.org, Catalin Marinas , Alexandre Torgue , Will Deacon , Maxime Coquelin , Philipp Zabel , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, Conor Dooley , Krzysztof Kozlowski , devicetree@vger.kernel.org Subject: Re: [PATCH v9 1/3] dt-bindings: memory-controllers: Add STM32 Octo Memory Manager controller Message-ID: <174439138531.3430719.4031301893879549125.robh@kernel.org> References: <20250410-upstream_ospi_v6-v9-0-cf119508848a@foss.st.com> <20250410-upstream_ospi_v6-v9-1-cf119508848a@foss.st.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 > --- > .../memory-controllers/st,stm32mp25-omm.yaml | 226 +++++++++++++++++++++ > 1 file changed, 226 insertions(+) > Reviewed-by: Rob Herring (Arm)