[RFC PATCH v4 1/6] fpga: add option for loading FPGA secure bitstreams

[Oleksandr Suvorov]

It allows using this feature without enabling the "fpga loads"
command.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov at foundries.io>
Tested-by: Ricardo Salveti <ricardo at foundries.io>
---

(no changes since v1)

 cmd/Kconfig             |  3 ++-
 drivers/fpga/Kconfig    | 14 ++++++++++++++
 drivers/fpga/fpga.c     |  2 +-
 drivers/fpga/xilinx.c   |  2 +-
 drivers/fpga/zynqmppl.c |  4 ++--
 5 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/cmd/Kconfig b/cmd/Kconfig
index 5b30b13e438..270d1765d35 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -949,8 +949,9 @@ config CMD_FPGA_LOADP
 	  a partial bitstream.
 
 config CMD_FPGA_LOAD_SECURE
-	bool "fpga loads - loads secure bitstreams (Xilinx only)"
+	bool "fpga loads - loads secure bitstreams"
 	depends on CMD_FPGA
+	select FPGA_LOAD_SECURE
 	help
 	  Enables the fpga loads command which is used to load secure
 	  (authenticated or encrypted or both) bitstreams on to FPGA.
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index dc0b3dd31b7..262f95a252a 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -85,4 +85,18 @@ config FPGA_ZYNQPL
 	  Enable FPGA driver for loading bitstream in BIT and BIN format
 	  on Xilinx Zynq devices.
 
+config FPGA_LOAD_SECURE
+	bool "Enable loading secure bitstreams"
+	depends on FPGA
+	help
+	  Enables the fpga loads() functions that are used to load secure
+	  (authenticated or encrypted or both) bitstreams on to FPGA.
+
+config SPL_FPGA_LOAD_SECURE
+	bool "Enable loading secure bitstreams for SPL"
+	depends on FPGA
+	help
+	  Enables the fpga loads() functions that are used to load secure
+	  (authenticated or encrypted or both) bitstreams on to FPGA.
+
 endmenu
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index fe3dfa12335..3b0a44b2420 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -220,7 +220,7 @@ int fpga_fsload(int devnum, const void *buf, size_t size,
 }
 #endif
 
-#if defined(CONFIG_CMD_FPGA_LOAD_SECURE)
+#if CONFIG_IS_ENABLED(FPGA_LOAD_SECURE)
 int fpga_loads(int devnum, const void *buf, size_t size,
 	       struct fpga_secure_info *fpga_sec_info)
 {
diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
index cbebefb55fe..6bc1bc491fb 100644
--- a/drivers/fpga/xilinx.c
+++ b/drivers/fpga/xilinx.c
@@ -172,7 +172,7 @@ int xilinx_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
 }
 #endif
 
-#if defined(CONFIG_CMD_FPGA_LOAD_SECURE)
+#if CONFIG_IS_ENABLED(FPGA_LOAD_SECURE)
 int xilinx_loads(xilinx_desc *desc, const void *buf, size_t bsize,
 		 struct fpga_secure_info *fpga_sec_info)
 {
diff --git a/drivers/fpga/zynqmppl.c b/drivers/fpga/zynqmppl.c
index 6b394869dbf..8ff12bf50a0 100644
--- a/drivers/fpga/zynqmppl.c
+++ b/drivers/fpga/zynqmppl.c
@@ -245,7 +245,7 @@ static int zynqmp_load(xilinx_desc *desc, const void *buf, size_t bsize,
 	return ret;
 }
 
-#if defined(CONFIG_CMD_FPGA_LOAD_SECURE) && !defined(CONFIG_SPL_BUILD)
+#if CONFIG_IS_ENABLED(FPGA_LOAD_SECURE)
 static int zynqmp_loads(xilinx_desc *desc, const void *buf, size_t bsize,
 			struct fpga_secure_info *fpga_sec_info)
 {
@@ -306,7 +306,7 @@ static int zynqmp_pcap_info(xilinx_desc *desc)
 
 struct xilinx_fpga_op zynqmp_op = {
 	.load = zynqmp_load,
-#if defined(CONFIG_CMD_FPGA_LOAD_SECURE) && !defined(CONFIG_SPL_BUILD)
+#if CONFIG_IS_ENABLED(FPGA_LOAD_SECURE)
 	.loads = zynqmp_loads,
 #endif
 	.info = zynqmp_pcap_info,
-- 
2.31.1