[U-Boot] [PATCH v2] zynq: Use GPLed files for SPL

[Soren Brinkmann]

The latest Xilinx tools generate ps7_init files that are explicitly
available under GPL. Change the makefile to allow drop in of those files
for building the SPL.

Signed-off-by: Soren Brinkmann <soren.brinkmann at xilinx.com>
Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>
---
This  works, but I wonder whether there is a more elegant way to issue the
warning.

v2:
 - keep support for legacy file names
 - issue compiler warning when legacy files are used
---
 board/xilinx/zynq/Makefile | 10 ++++++++--
 board/xilinx/zynq/legacy.c |  2 ++
 board/xilinx/zynq/xil_io.h |  2 +-
 3 files changed, 11 insertions(+), 3 deletions(-)
 create mode 100644 board/xilinx/zynq/legacy.c

diff --git a/board/xilinx/zynq/Makefile b/board/xilinx/zynq/Makefile
index 71c0c351f929..0c54898b9a8e 100644
--- a/board/xilinx/zynq/Makefile
+++ b/board/xilinx/zynq/Makefile
@@ -7,9 +7,15 @@
 
 obj-y	:= board.o
 
-# Please copy ps7_init.c/h from hw project to this directory
+# Please copy ps7_init_gpl.c/h from hw project to this directory
 obj-$(CONFIG_SPL_BUILD) += \
-		$(if $(wildcard $(srctree)/$(src)/ps7_init.c), ps7_init.o)
+		$(if $(wildcard $(srctree)/$(src)/ps7_init_gpl.c), ps7_init_gpl.o)
 
 # Suppress "warning: function declaration isn't a prototype"
+CFLAGS_REMOVE_ps7_init_gpl.o := -Wstrict-prototypes
+
+# keep support for legacy file names to give users time to switch
+obj-$(CONFIG_SPL_BUILD) += \
+		$(if $(wildcard $(srctree)/$(src)/ps7_init.c), ps7_init.o legacy.o)
+
 CFLAGS_REMOVE_ps7_init.o := -Wstrict-prototypes
diff --git a/board/xilinx/zynq/legacy.c b/board/xilinx/zynq/legacy.c
new file mode 100644
index 000000000000..4ae913eefeb3
--- /dev/null
+++ b/board/xilinx/zynq/legacy.c
@@ -0,0 +1,2 @@
+
+#warning usage of ps7_init files is deprecated please use ps7_init_gpl
diff --git a/board/xilinx/zynq/xil_io.h b/board/xilinx/zynq/xil_io.h
index e59a977eb174..1eccf8d91d09 100644
--- a/board/xilinx/zynq/xil_io.h
+++ b/board/xilinx/zynq/xil_io.h
@@ -6,7 +6,7 @@
 #define XIL_IO_H
 
 /*
- * This empty file is here because ps7_init.c exported by hw project
+ * This empty file is here because ps7_init_gpl.c exported by hw project
  * has #include "xil_io.h" line.
  */
 
-- 
2.1.2.1.g5e69ed6