linux-kernel - [RESEND PATCHv2 5/5] fpga: stratix10-soc: extend driver for bitstream authentication

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Date:   Mon, 14 Dec 2020 08:40:00 -0600
From:   richard.gong@...ux.intel.com
To:     gregkh@...uxfoundation.org, mdf@...nel.org, trix@...hat.com,
        linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     dinguyen@...nel.org, sridhar.rajagopal@...el.com,
        richard.gong@...ux.intel.com, Richard Gong <richard.gong@...el.com>
Subject: [RESEND PATCHv2 5/5] fpga: stratix10-soc: extend driver for bitstream authentication

From: Richard Gong <richard.gong@...el.com>

Extend FPGA manager driver to support FPGA bitstream authentication on
Intel SocFPGA platforms.

Signed-off-by: Richard Gong <richard.gong@...el.com>
---
v2: use flag defined in stratix10-svc driver
---
 drivers/fpga/stratix10-soc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
index 657a70c..b77067e 100644
--- a/drivers/fpga/stratix10-soc.c
+++ b/drivers/fpga/stratix10-soc.c
@@ -186,6 +186,9 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
 	if (info->flags & FPGA_MGR_PARTIAL_RECONFIG) {
 		dev_dbg(dev, "Requesting partial reconfiguration.\n");
 		ctype.flags |= BIT(COMMAND_RECONFIG_FLAG_PARTIAL);
+	} else if (info->flags & FPGA_MGR_BITSTREM_AUTHENTICATION) {
+		dev_dbg(dev, "Requesting bitstream authentication.\n");
+		ctype.flags |= BIT(COMMAND_AUTHENTICATE_BITSTREAM);
 	} else {
 		dev_dbg(dev, "Requesting full reconfiguration.\n");
 	}
-- 
2.7.4