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-rw-r--r--Documentation/devicetree/bindings/fpga/fpga-region.txt1
-rw-r--r--drivers/fpga/fpga-region.c8
2 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt
index 3b32ba15a717..81bf3adba24b 100644
--- a/Documentation/devicetree/bindings/fpga/fpga-region.txt
+++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt
@@ -186,6 +186,7 @@ Optional properties:
otherwise full reconfiguration is done.
- 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
- region-unfreeze-timeout-us : The maximum time in microseconds to wait for
bridges to successfully become enabled after the region has been
programmed.
diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
index 3222fdbad75a..2fe2a52c66ca 100644
--- a/drivers/fpga/fpga-region.c
+++ b/drivers/fpga/fpga-region.c
@@ -337,8 +337,9 @@ static int child_regions_with_firmware(struct device_node *overlay)
* The overlay must add either firmware-name or external-fpga-config property
* to the FPGA Region.
*
- * firmware-name : program the FPGA
- * external-fpga-config : FPGA is already programmed
+ * firmware-name : program the FPGA
+ * external-fpga-config : FPGA is already programmed
+ * encrypted-fpga-config : FPGA bitstream is encrypted
*
* The overlay can add other FPGA regions, but child FPGA regions cannot have a
* firmware-name property since those regions don't exist yet.
@@ -373,6 +374,9 @@ static int fpga_region_notify_pre_apply(struct fpga_region *region,
if (of_property_read_bool(nd->overlay, "external-fpga-config"))
info->flags |= FPGA_MGR_EXTERNAL_CONFIG;
+ if (of_property_read_bool(nd->overlay, "encrypted-fpga-config"))
+ info->flags |= FPGA_MGR_ENCRYPTED_BITSTREAM;
+
of_property_read_string(nd->overlay, "firmware-name", &firmware_name);
of_property_read_u32(nd->overlay, "region-unfreeze-timeout-us",
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