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From:   richard.gong@linux.intel.com
To:     mdf@kernel.org, trix@redhat.com, gregkh@linuxfoundation.org,
        linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Richard Gong <richard.gong@intel.com>
Subject: [PATCHv4 5/6] dt-bindings: fpga: add authenticate-fpga-config property
Date:   Mon,  1 Feb 2021 09:21:58 -0600
Message-Id: <1612192919-4069-6-git-send-email-richard.gong@linux.intel.com>
In-Reply-To: <1612192919-4069-1-git-send-email-richard.gong@linux.intel.com>
References: <1612192919-4069-1-git-send-email-richard.gong@linux.intel.com>
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From: Richard Gong <richard.gong@intel.com>

Add authenticate-fpga-config property for FPGA bitstream authentication,
which makes sure a signed bitstream has valid signatures.

Signed-off-by: Richard Gong <richard.gong@intel.com>
---
v4: explain authenticate-fpga-config flag further
v3: no change
v2: put authenticate-fpga-config above partial-fpga-config
    update commit messages
---
 Documentation/devicetree/bindings/fpga/fpga-region.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt
index e811cf8..e2740b6 100644
--- a/Documentation/devicetree/bindings/fpga/fpga-region.txt
+++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt
@@ -182,6 +182,10 @@ Optional properties:
 	This property is optional if the FPGA Manager handles the bridges.
         If the fpga-region is  the child of a fpga-bridge, the list should not
         contain the parent bridge.
+- authenticate-fpga-config : boolean, set if do bitstream authentication only.
+	flag authenticate-fpga-config is used to first check the integrity of
+	the bitstream. If the authentication is passed, the user can perform
+	other operations.
 - partial-fpga-config : boolean, set if partial reconfiguration is to be done,
 	otherwise full reconfiguration is done.
 - external-fpga-config : boolean, set if the FPGA has already been configured
-- 
2.7.4