[RESEND PATCHv2 3/5] fpga: of-fpga-region: add authenticate-fpga-config property

From: richard . gong
Date: Mon Dec 14 2020 - 09:24:16 EST


From: Richard Gong <richard.gong@xxxxxxxxx>

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

Signed-off-by: Richard Gong <richard.gong@xxxxxxxxx>
---
v2: changed in alphabetical order
---
drivers/fpga/of-fpga-region.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
index e405309..3840883 100644
--- a/drivers/fpga/of-fpga-region.c
+++ b/drivers/fpga/of-fpga-region.c
@@ -219,6 +219,9 @@ static struct fpga_image_info *of_fpga_region_parse_ov(
info->overlay = overlay;

/* Read FPGA region properties from the overlay */
+ if (of_property_read_bool(overlay, "authenticate-fpga-config"))
+ info->flags |= FPGA_MGR_BITSTREM_AUTHENTICATION;
+
if (of_property_read_bool(overlay, "partial-fpga-config"))
info->flags |= FPGA_MGR_PARTIAL_RECONFIG;

--
2.7.4