cmd: fpga: Add support to load secure bitstreams

This patch adds support to load secure bitstreams(authenticated or
encrypted or both). As of now, this feature is added and tested only
for xilinx bitstreams and the secure bitstream was generated using
xilinx bootgen tool, but the command is defined in more generic way.

Command example to load authenticated and device key
encrypted bitstream is as follows
"fpga loads 0 100000 2000000 0 1"

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/fpga.h b/include/fpga.h
index f4440933531..195f0bdd57a 100644
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -20,6 +20,9 @@
 /* device numbers must be non-negative */
 #define FPGA_INVALID_DEVICE	-1
 
+#define FPGA_ENC_USR_KEY	1
+#define FPGA_NO_ENC_OR_NO_AUTH	2
+
 /* root data type defintions */
 typedef enum {			/* typedef fpga_type */
 	fpga_min_type,		/* range check value */
@@ -42,6 +45,12 @@ typedef struct {                /* typedef fpga_desc */
 	int fstype;
 } fpga_fs_info;
 
+struct fpga_secure_info {
+	u8 *userkey_addr;
+	u8 authflag;
+	u8 encflag;
+};
+
 typedef enum {
 	BIT_FULL = 0,
 	BIT_PARTIAL,
@@ -58,6 +67,8 @@ int fpga_load(int devnum, const void *buf, size_t bsize,
 	      bitstream_type bstype);
 int fpga_fsload(int devnum, const void *buf, size_t size,
 		fpga_fs_info *fpga_fsinfo);
+int fpga_loads(int devnum, const void *buf, size_t size,
+	       struct fpga_secure_info *fpga_sec_info);
 int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
 		       bitstream_type bstype);
 int fpga_dump(int devnum, const void *buf, size_t bsize);