[RFC PATCH 2/4] fpga: Add new properties to support user-key encrypted bitstream loading

From: Nava kishore Manne
Date: Tue May 04 2021 - 06:23:38 EST


This patch Adds ‘encrypted-key-name’ and
‘encrypted-user-key-fpga-config’ properties
to support user-key encrypted bitstream loading
use case.

Signed-off-by: Nava kishore Manne <nava.manne@xxxxxxxxxx>
---
Documentation/devicetree/bindings/fpga/fpga-region.txt | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt
index d787d57491a1..957dc6cbcd9e 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.
- fpga-bridges : should contain a list of phandles to FPGA Bridges that must be
controlled during FPGA programming along with the parent FPGA bridge.
This property is optional if the FPGA Manager handles the bridges.
@@ -187,6 +190,8 @@ Optional properties:
- external-fpga-config : boolean, set if the FPGA has already been configured
prior to OS boot up.
- encrypted-fpga-config : boolean, set if the bitstream is encrypted
+- encrypted-user-key-fpga-config : boolean, set if the bitstream is encrypted
+ with user key.
- region-unfreeze-timeout-us : The maximum time in microseconds to wait for
bridges to successfully become enabled after the region has been
programmed.
--
2.17.1