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SubjectRe: [RFC v2 2/4] fpga: Add new property to support user-key encrypted bitstream loading
On Wed, Jun 09, 2021 at 11:22:30AM +0530, Nava kishore Manne wrote:
> This patch Adds ‘encrypted-key-name’ property to
> support user-key encrypted bitstream loading
> use case.
>
> Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
> ---
> Changes for v2:
> -Both DT properties ie; encrypted-key-name and encrypted-user-key-fpga-config
> are targeted to use for the same use cases but ideally encrypted-key-name
> is enough to serve the purpose so updated the file to remove the unwanted
> encrypted-user-key-fpga-config property as suggested by Rob.
>
> Documentation/devicetree/bindings/fpga/fpga-region.txt | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt
> index d787d57491a1..0de4a1c54650 100644
> --- a/Documentation/devicetree/bindings/fpga/fpga-region.txt
> +++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt
> @@ -177,6 +177,9 @@ Optional properties:
> it indicates that the FPGA has already been programmed with this image.
> If this property is in an overlay targeting a FPGA region, it is a
> request to program the FPGA with that image.
> +- encrypted-key-name : should contain the name of an encrypted key file located
> + on the firmware search path. It will be used to decrypt the FPGA image
> + file with user-key.

What is the format this "user-key" is in? Where is the documentation
for how to use this type of thing?

thanks,

greg k-h

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