diff --git a/arch/arm64/configs/rockchip_defconfig b/arch/arm64/configs/rockchip_defconfig
index 86ab5c185266..9c95d96d803f 100644
--- a/arch/arm64/configs/rockchip_defconfig
+++ b/arch/arm64/configs/rockchip_defconfig
@@ -517,8 +517,8 @@ CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
 # CONFIG_SERIAL_8250_PCI is not set
-CONFIG_SERIAL_8250_NR_UARTS=10
-CONFIG_SERIAL_8250_RUNTIME_UARTS=10
+CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RUNTIME_UARTS=15
 CONFIG_SERIAL_8250_DW=y
 CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_ROCKCHIP=y