diff --git a/include/fdtdec.h b/include/fdtdec.h
index c9ab822c44..760b392bdf 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -908,26 +908,6 @@ struct display_timing {
 int fdtdec_decode_display_timing(const void *blob, int node, int index,
 				 struct display_timing *config);
 
-/**
- * fdtdec_setup_mem_size_base_fdt() - decode and setup gd->ram_size and
- * gd->ram_start
- *
- * Decode the /memory 'reg' property to determine the size and start of the
- * first memory bank, populate the global data with the size and start of the
- * first bank of memory.
- *
- * This function should be called from a boards dram_init(). This helper
- * function allows for boards to query the device tree for DRAM size and start
- * address instead of hard coding the value in the case where the memory size
- * and start address cannot be detected automatically.
- *
- * @param blob		FDT blob
- *
- * @return 0 if OK, -EINVAL if the /memory node or reg property is missing or
- * invalid
- */
-int fdtdec_setup_mem_size_base_fdt(const void *blob);
-
 /**
  * fdtdec_setup_mem_size_base() - decode and setup gd->ram_size and
  * gd->ram_start
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 36c1ad4e86..78576b530f 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1030,18 +1030,18 @@ int fdtdec_decode_display_timing(const void *blob, int parent, int index,
 	return ret;
 }
 
-int fdtdec_setup_mem_size_base_fdt(const void *blob)
+int fdtdec_setup_mem_size_base(void)
 {
 	int ret, mem;
 	struct fdt_resource res;
 
-	mem = fdt_path_offset(blob, "/memory");
+	mem = fdt_path_offset(gd->fdt_blob, "/memory");
 	if (mem < 0) {
 		debug("%s: Missing /memory node\n", __func__);
 		return -EINVAL;
 	}
 
-	ret = fdt_get_resource(blob, mem, "reg", 0, &res);
+	ret = fdt_get_resource(gd->fdt_blob, mem, "reg", 0, &res);
 	if (ret != 0) {
 		debug("%s: Unable to decode first memory bank\n", __func__);
 		return -EINVAL;
@@ -1055,11 +1055,6 @@ int fdtdec_setup_mem_size_base_fdt(const void *blob)
 	return 0;
 }
 
-int fdtdec_setup_mem_size_base(void)
-{
-	return fdtdec_setup_mem_size_base_fdt(gd->fdt_blob);
-}
-
 #if defined(CONFIG_NR_DRAM_BANKS)
 
 static int get_next_memory_node(const void *blob, int mem)