diff --git a/configs/rock-pi-e-rk3328_defconfig b/configs/rock-pi-e-rk3328_defconfig
index c0c1ebf..0ffb073 100644
--- a/configs/rock-pi-e-rk3328_defconfig
+++ b/configs/rock-pi-e-rk3328_defconfig
@@ -96,6 +96,7 @@
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_DEBUG_UART_ANNOUNCE=y
 CONFIG_DEBUG_UART_SKIP_INIT=y
+CONFIG_SYS_NS16550_MEM32=y
 CONFIG_SYSINFO=y
 CONFIG_SYSINFO_SMBIOS=y
 CONFIG_SYSRESET=y