Re: [PATCH v9 2/4] dt-bindings: mtd: Add a property to declare secure regions in NAND chips

From: Rob Herring
Date: Tue Apr 06 2021 - 12:31:58 EST


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@xxxxxxxxxx>
> ---
> 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.