diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c b/board/rockchip/evb_rk3399/evb-rk3399.c
index c6e6cd3..c437f1b 100644
--- a/board/rockchip/evb_rk3399/evb-rk3399.c
+++ b/board/rockchip/evb_rk3399/evb-rk3399.c
@@ -71,5 +71,5 @@ void dram_init_banksize(void)
 {
 	/* Reserve 0x200000 for ATF bl31 */
 	gd->bd->bi_dram[0].start = 0x200000;
-	gd->bd->bi_dram[0].size = 0x80000000;
+	gd->bd->bi_dram[0].size = 0x7e000000;
 }