diff --git a/configs/vyasa-rk3288_defconfig b/configs/vyasa-rk3288_defconfig
index eaea625..c74c145 100644
--- a/configs/vyasa-rk3288_defconfig
+++ b/configs/vyasa-rk3288_defconfig
@@ -10,6 +10,7 @@
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART=y
+CONFIG_USE_PREBOOT=y
 CONFIG_SILENT_CONSOLE=y
 CONFIG_DEFAULT_FDT_FILE="rk3288-vyasa.dtb"
 # CONFIG_DISPLAY_CPUINFO is not set
@@ -84,6 +85,5 @@
 CONFIG_VIDEO_ROCKCHIP=y
 CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_CONSOLE_SCROLL_LINES=10
-CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_ERRNO_STR=y