From: Rob Herring <robh@kernel.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Daniele.Palmas@telit.com, robh+dt@kernel.org,
linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org,
boris.brezillon@collabora.com, devicetree@vger.kernel.org,
vigneshr@ti.com, linux-mtd@lists.infradead.org,
miquel.raynal@bootlin.com, linux-kernel@vger.kernel.org,
richard@nod.at
Subject: Re: [PATCH v9 2/4] dt-bindings: mtd: Add a property to declare secure regions in NAND chips
Date: Tue, 6 Apr 2021 11:31:52 -0500 [thread overview]
Message-ID: <20210406163152.GA1919684@robh.at.kernel.org> (raw)
In-Reply-To: <20210401151508.143075-3-manivannan.sadhasivam@linaro.org>
On Thu, 01 Apr 2021 20:45:06 +0530, Manivannan Sadhasivam wrote:
> On a typical end product, a vendor may choose to secure some regions in
> the NAND memory which are supposed to stay intact between FW upgrades.
> The access to those regions will be blocked by a secure element like
> Trustzone. So the normal world software like Linux kernel should not
> touch these regions (including reading).
>
> So let's add a property for declaring such secure regions so that the
> drivers can skip touching them.
>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
> Documentation/devicetree/bindings/mtd/nand-controller.yaml | 7 +++++++
> 1 file changed, 7 insertions(+)
>
Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.
If a tag was not added on purpose, please state why and what changed.
next prev parent reply other threads:[~2021-04-06 16:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 15:15 [PATCH v9 0/4] Add support for secure regions in NAND Manivannan Sadhasivam
2021-04-01 15:15 ` [PATCH v9 1/4] dt-bindings: mtd: Convert Qcom NANDc binding to YAML Manivannan Sadhasivam
2021-04-01 15:15 ` [PATCH v9 2/4] dt-bindings: mtd: Add a property to declare secure regions in NAND chips Manivannan Sadhasivam
2021-04-06 16:31 ` Rob Herring [this message]
2021-04-01 15:15 ` [PATCH v9 3/4] mtd: rawnand: Add support for secure regions in NAND memory Manivannan Sadhasivam
2021-04-01 15:15 ` [PATCH v9 4/4] mtd: rawnand: qcom: Add missing nand_cleanup() in error path Manivannan Sadhasivam
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