linux-kernel - Re: [PATCH v3 4/4] arm64: dts: freescale: imx8qxp/imx8qm: Add CAAM support

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Message-ID: <aDgtpd_pXyLjgoIJ@w447anl.localdomain>
Date: Thu, 29 May 2025 09:49:26 +0000
From: John Ernberg <john.ernberg@...ia.se>
To: Frank Li <Frank.li@....com>
CC: Horia Geantă <horia.geanta@....com>, Pankaj Gupta
	<pankaj.gupta@....com>, Gaurav Jain <gaurav.jain@....com>, Herbert Xu
	<herbert@...dor.apana.org.au>, "David S . Miller" <davem@...emloft.net>, "Rob
 Herring" <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, "Conor
 Dooley" <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer
	<s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Thomas Richard
	<thomas.richard@...tlin.com>, "linux-crypto@...r.kernel.org"
	<linux-crypto@...r.kernel.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 4/4] arm64: dts: freescale: imx8qxp/imx8qm: Add CAAM
 support

Hi Frank,

On Wed, May 28, 2025 at 11:01:33AM -0400, Frank Li wrote:
> On Wed, May 28, 2025 at 02:43:08PM +0000, John Ernberg wrote:
> > From: Horia Geantă <horia.geanta@....com>
> >
> > The iMX8QXP and iMX8QM have a CAAM (Cryptographic Acceleration and
> > Assurance Module) like many other iMXs.
> >
> > Add the definitions for it.
> >
> > Job Rings 0 and 1 are bound to the SECO (Security Controller) ARM core
> > and are not exposed outside it. There's no point to define them in the
> > bindings as they cannot be used outside the SECO.
> >
> > Signed-off-by: Horia Geantă <horia.geanta@....com>
> > [jernberg: Commit message, fixed dtbs_check warnings, trimmed memory ranges]
> 
> what's this for?  remove it if not related with this patch.

These are the adjustments I did to the patch by Horia that I took out of
the linux-imx tree (original patch linked below in context).

While not part of the process I have seen them used and found them helpful,
I can drop it if preferred.

Best regards // John Ernberg

> 
> Frank
> 
> > Signed-off-by: John Ernberg <john.ernberg@...ia.se>
> >
> > ---
> >
> > Imported from NXP tree, trimmed down and fixed the dtbs_check warnings.
> > Constrained the ranges to the needed ones.
> > Changed the commit message.
> > Original here: https://github.com/nxp-imx/linux-imx/commit/699e54b386cb9b53def401798d0a4e646105583d
> >
> > ---