diff --git a/drivers/rkflash/rkflash_blk.c b/drivers/rkflash/rkflash_blk.c
index a38089c1a5d0..8ea8a44673cb 100644
--- a/drivers/rkflash/rkflash_blk.c
+++ b/drivers/rkflash/rkflash_blk.c
@@ -229,12 +229,15 @@ static unsigned int rk_partition_init(struct flash_part *part)
 
 static int rkflash_proc_show(struct seq_file *m, void *v)
 {
-	int real_size = 0;
 	char *ftl_buf = kzalloc(4096, GFP_KERNEL);
 
+#if IS_ENABLED(CONFIG_RK_NANDC_NAND) || IS_ENABLED(CONFIG_RK_SFC_NAND)
+	int real_size = 0;
+
 	real_size = rknand_proc_ftlread(4096, ftl_buf);
 	if (real_size > 0)
 		seq_printf(m, "%s", ftl_buf);
+#endif
 	seq_printf(m, "Totle Read %ld KB\n", totle_read_data >> 1);
 	seq_printf(m, "Totle Write %ld KB\n", totle_write_data >> 1);
 	seq_printf(m, "totle_write_count %ld\n", totle_write_count);