ARM: LPC32xx: DT conversion of Standard UARTs

This patch switches from static serial driver initialization to devicetree
configuration. This way, the Standard UARTs of the LPC32xx SoC can be enabled
individually via DT.

E.g., instead of Kconfig configuration, the phy3250.dts activates
UARTs 3 and 5.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Tested-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>

arch/arm/boot/dts/lpc32xx.dtsi

@@ -126,24 +126,42 @@
 				reg = <0x2009C000 0x1000>;
 			};
 
+			/* UART5 first since it is the default console, ttyS0 */
+			uart5: serial@40090000 {
+				/* actually, ns16550a w/ 64 byte fifos! */
+				compatible = "nxp,lpc3220-uart";
+				reg = <0x40090000 0x1000>;
+				interrupts = <9 0>;
+				clock-frequency = <13000000>;
+				reg-shift = <2>;
+				status = "disabled";
+			};
+
 			uart3: serial@40080000 {
-				compatible = "nxp,serial";
+				compatible = "nxp,lpc3220-uart";
 				reg = <0x40080000 0x1000>;
+				interrupts = <7 0>;
+				clock-frequency = <13000000>;
+				reg-shift = <2>;
+				status = "disabled";
 			};
 
 			uart4: serial@40088000 {
-				compatible = "nxp,serial";
+				compatible = "nxp,lpc3220-uart";
 				reg = <0x40088000 0x1000>;
-			};
-
-			uart5: serial@40090000 {
-				compatible = "nxp,serial";
-				reg = <0x40090000 0x1000>;
+				interrupts = <8 0>;
+				clock-frequency = <13000000>;
+				reg-shift = <2>;
+				status = "disabled";
 			};
 
 			uart6: serial@40098000 {
-				compatible = "nxp,serial";
+				compatible = "nxp,lpc3220-uart";
 				reg = <0x40098000 0x1000>;
+				interrupts = <10 0>;
+				clock-frequency = <13000000>;
+				reg-shift = <2>;
+				status = "disabled";
 			};
 
 			i2c1: i2c@400A0000 {