diff --git a/configs/chromebit_mickey_defconfig b/configs/chromebit_mickey_defconfig
index fbe0e5d..35b339d 100644
--- a/configs/chromebit_mickey_defconfig
+++ b/configs/chromebit_mickey_defconfig
@@ -70,7 +70,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_ROCKCHIP_SERIAL=y
 CONFIG_ROCKCHIP_SPI=y
 CONFIG_SYSRESET=y
diff --git a/configs/chromebook_jerry_defconfig b/configs/chromebook_jerry_defconfig
index bced22e..0f734df 100644
--- a/configs/chromebook_jerry_defconfig
+++ b/configs/chromebook_jerry_defconfig
@@ -71,7 +71,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_ROCKCHIP_SERIAL=y
 CONFIG_ROCKCHIP_SPI=y
 CONFIG_SYSRESET=y
diff --git a/configs/chromebook_minnie_defconfig b/configs/chromebook_minnie_defconfig
index 913b32e..3eec404 100644
--- a/configs/chromebook_minnie_defconfig
+++ b/configs/chromebook_minnie_defconfig
@@ -70,7 +70,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_ROCKCHIP_SERIAL=y
 CONFIG_ROCKCHIP_SPI=y
 CONFIG_SYSRESET=y
diff --git a/configs/evb-rk3128_defconfig b/configs/evb-rk3128_defconfig
index e7414c9..367c654 100644
--- a/configs/evb-rk3128_defconfig
+++ b/configs/evb-rk3128_defconfig
@@ -33,7 +33,6 @@ CONFIG_DM_RESET=y
 CONFIG_DEBUG_UART_BASE=0x20068000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
diff --git a/configs/evb-rk3229_defconfig b/configs/evb-rk3229_defconfig
index 5ec9788..96afda8 100644
--- a/configs/evb-rk3229_defconfig
+++ b/configs/evb-rk3229_defconfig
@@ -45,7 +45,6 @@ CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_BASE=0x11030000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
diff --git a/configs/evb-rk3288_defconfig b/configs/evb-rk3288_defconfig
index 7ba7178..b8189fd 100644
--- a/configs/evb-rk3288_defconfig
+++ b/configs/evb-rk3288_defconfig
@@ -64,7 +64,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/evb-rk3328_defconfig b/configs/evb-rk3328_defconfig
index 266d699..3fb1cfc 100644
--- a/configs/evb-rk3328_defconfig
+++ b/configs/evb-rk3328_defconfig
@@ -43,7 +43,6 @@ CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_BASE=0xFF130000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
diff --git a/configs/evb-rk3399_defconfig b/configs/evb-rk3399_defconfig
index b5ae073..7e3e97d 100644
--- a/configs/evb-rk3399_defconfig
+++ b/configs/evb-rk3399_defconfig
@@ -55,7 +55,6 @@ CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_BASE=0xFF1A0000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
diff --git a/configs/fennec-rk3288_defconfig b/configs/fennec-rk3288_defconfig
index 11112ca..0b6e8b9 100644
--- a/configs/fennec-rk3288_defconfig
+++ b/configs/fennec-rk3288_defconfig
@@ -63,7 +63,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/firefly-rk3288_defconfig b/configs/firefly-rk3288_defconfig
index adb6b5d..dc856b0 100644
--- a/configs/firefly-rk3288_defconfig
+++ b/configs/firefly-rk3288_defconfig
@@ -67,7 +67,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/firefly-rk3399_defconfig b/configs/firefly-rk3399_defconfig
index 03d0324..ed30652 100644
--- a/configs/firefly-rk3399_defconfig
+++ b/configs/firefly-rk3399_defconfig
@@ -57,7 +57,6 @@ CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_BASE=0xFF1A0000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
diff --git a/configs/miqi-rk3288_defconfig b/configs/miqi-rk3288_defconfig
index a2e58a7..c62158a 100644
--- a/configs/miqi-rk3288_defconfig
+++ b/configs/miqi-rk3288_defconfig
@@ -63,7 +63,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/phycore-rk3288_defconfig b/configs/phycore-rk3288_defconfig
index bd698f5..8e4e04d 100644
--- a/configs/phycore-rk3288_defconfig
+++ b/configs/phycore-rk3288_defconfig
@@ -67,7 +67,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/popmetal-rk3288_defconfig b/configs/popmetal-rk3288_defconfig
index 0d85349..2beee6e 100644
--- a/configs/popmetal-rk3288_defconfig
+++ b/configs/popmetal-rk3288_defconfig
@@ -63,7 +63,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig
index 32aa72c..5d69b0e 100644
--- a/configs/puma-rk3399_defconfig
+++ b/configs/puma-rk3399_defconfig
@@ -81,7 +81,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xFF180000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_ROCKCHIP_SPI=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
diff --git a/configs/rock2_defconfig b/configs/rock2_defconfig
index 744a84a..4e220fe 100644
--- a/configs/rock2_defconfig
+++ b/configs/rock2_defconfig
@@ -64,7 +64,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/rock_defconfig b/configs/rock_defconfig
index e46cc29..2e27768 100644
--- a/configs/rock_defconfig
+++ b/configs/rock_defconfig
@@ -49,7 +49,6 @@ CONFIG_RAM=y
 CONFIG_DEBUG_UART_BASE=0x20064000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_ROCKCHIP_USB2_PHY=y
diff --git a/configs/tinker-rk3288_defconfig b/configs/tinker-rk3288_defconfig
index f8ff916..1c28817 100644
--- a/configs/tinker-rk3288_defconfig
+++ b/configs/tinker-rk3288_defconfig
@@ -66,7 +66,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
diff --git a/configs/vyasa-rk3288_defconfig b/configs/vyasa-rk3288_defconfig
index 24a955a..90f1028 100644
--- a/configs/vyasa-rk3288_defconfig
+++ b/configs/vyasa-rk3288_defconfig
@@ -63,7 +63,6 @@ CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2
-CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_DWC2=y
