move serial to driver config, enable cmdline

target/linux/config/Config.in.serial

@@ -31,6 +31,24 @@ config ADK_KERNEL_SERIAL_AMBA_PL011_CONSOLE
 config ADK_KERNEL_DA_CONSOLE
 	bool
 
+config ADK_KERNEL_SERIAL_8250
+	bool "8250 serial driver"
+	select ADK_KERNEL_SERIAL_OF_PLATFORM if ADK_TARGET_SYSTEM_XILINX_KINTEX7 \
+						|| ADK_TARGET_SYSTEM_QEMU_OR1K
+	select ADK_KERNEL_SERIAL_8250_PNP if ADK_TARGET_SYSTEM_PCENGINES_APU
+	select ADK_KERNEL_SERIAL_8250_CONSOLE
+	depends on ADK_TARGET_SYSTEM_XILINX_KINTEX7 \
+		|| ADK_TARGET_SYSTEM_PCENGINES_APU \
+		|| ADK_TARGET_SYSTEM_QEMU_OR1K \
+		|| ADK_TARGET_SYSTEM_MIKROTIK_RB532
+	default y if ADK_TARGET_SYSTEM_XILINX_KINTEX7
+	default y if ADK_TARGET_SYSTEM_PCENGINES_APU
+	default y if ADK_TARGET_SYSTEM_QEMU_OR1K
+	default y if ADK_TARGET_SYSTEM_MIKROTIK_RB532
+	default n
+	help
+	  Serial driver for 8250 UART chip.
+
 config ADK_KERNEL_DA_TTY
 	bool "METAG serial driver"
 	select ADK_KERNEL_DA_CONSOLE
@@ -49,22 +67,6 @@ config ADK_KERNEL_SERIAL_ETRAXFS
 	help
 	  Serial driver for ETRAXFS CRISv32 Qemu Emulation.
 
-config ADK_KERNEL_SERIAL_8250
-	bool "8250 serial driver"
-	select ADK_KERNEL_SERIAL_OF_PLATFORM if ADK_TARGET_SYSTEM_XILINX_KINTEX7 \
-						|| ADK_TARGET_SYSTEM_QEMU_OR1K
-	select ADK_KERNEL_SERIAL_8250_PNP if ADK_TARGET_SYSTEM_PCENGINES_APU
-	select ADK_KERNEL_SERIAL_8250_CONSOLE
-	depends on ADK_TARGET_SYSTEM_XILINX_KINTEX7 \
-		|| ADK_TARGET_SYSTEM_PCENGINES_APU \
-		|| ADK_TARGET_SYSTEM_QEMU_OR1K
-	default y if ADK_TARGET_SYSTEM_XILINX_KINTEX7
-	default y if ADK_TARGET_SYSTEM_PCENGINES_APU
-	default y if ADK_TARGET_SYSTEM_QEMU_OR1K
-	default n
-	help
-	  Serial driver for 8250 UART chip.
-
 config ADK_KERNEL_SERIAL_AMBA_PL011
 	bool "AMBA PL011 serial driver"
 	select ADK_KERNEL_SERIAL_AMBA_PL011_CONSOLE

target/mips/kernel/mikrotik-rb532

@@ -1,5 +1,4 @@
 CONFIG_MIPS=y
 CONFIG_MIKROTIK_RB532=y
 CONFIG_CPU_MIPS32_R1=y
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y