2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index e0fb1b4e783..6aead27f162 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -171,6 +171,15 @@ int fpga_add(fpga_type devtype, void *desc)
 }
 
 /*
+ * Return 1 if the fpga data is partial.
+ * This is only required for fpga drivers that support bitstream_type.
+ */
+int __weak fpga_is_partial_data(int devnum, size_t img_len)
+{
+	return 0;
+}
+
+/*
  * Convert bitstream data and load into the fpga
  */
 int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
index 941f30010a5..3c057609697 100644
--- a/drivers/fpga/xilinx.c
+++ b/drivers/fpga/xilinx.c
@@ -24,6 +24,19 @@ static int xilinx_validate(xilinx_desc *desc, char *fn);
 
 /* ------------------------------------------------------------------------- */
 
+int fpga_is_partial_data(int devnum, size_t img_len)
+{
+	const fpga_desc * const desc = fpga_get_desc(devnum);
+	xilinx_desc *desc_xilinx = desc->devdesc;
+
+	/* Check datasize against FPGA size */
+	if (img_len >= desc_xilinx->size)
+		return 0;
+
+	/* datasize is smaller, must be partial data */
+	return 1;
+}
+
 int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
 		       bitstream_type bstype)
 {