diff --git a/configs/ringneck-px30_defconfig b/configs/ringneck-px30_defconfig
index dd332ece72..43e1324acc 100644
--- a/configs/ringneck-px30_defconfig
+++ b/configs/ringneck-px30_defconfig
@@ -111,9 +111,9 @@ CONFIG_DM_RESET=y
 CONFIG_DM_RNG=y
 CONFIG_RNG_ROCKCHIP=y
 # CONFIG_SPECIFY_CONSOLE_INDEX is not set
-CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_DEBUG_UART_SKIP_INIT=y
-CONFIG_SYS_NS16550_MEM32=y
+CONFIG_TPL_SYS_NS16550_SERIAL=y
+CONFIG_SYS_NS16550_REG_SIZE=-4
 CONFIG_SOUND=y
 CONFIG_SYSRESET=y
 CONFIG_DM_THERMAL=y
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index bb5083201b..d40f7dac2a 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -731,6 +731,11 @@ config SPL_SYS_NS16550_SERIAL
        default y if SYS_NS16550_SERIAL || ARCH_SUNXI || ARCH_OMAP2PLUS
        select SYS_NS16550

+config TPL_SYS_NS16550_SERIAL
+       bool "NS16550 UART or compatible legacy driver in TPL"
+       depends on TPL && !TPL_DM_SERIAL
+       select SYS_NS16550
+
 config SYS_NS16550
        bool "NS16550 UART or compatible"
        help
@@ -771,7 +776,7 @@ config SYS_NS16550_PORT_MAPPED

 config SYS_NS16550_REG_SIZE
        int "ns16550 register width and endianness"
-       depends on SYS_NS16550_SERIAL || SPL_SYS_NS16550_SERIAL
+       depends on SYS_NS16550_SERIAL || SPL_SYS_NS16550_SERIAL || TPL_SYS_NS16550_SERIAL
        range -4 4
        default -4 if ARCH_OMAP2PLUS || ARCH_SUNXI
        default 1