MIPS: BMIPS: Improve BCM6328 device tree

- Remove unneeded leds0 alias.
- Switch to bcm6345-l1-intc interrupt controller.
- Use interrupt-controller instead of periph_intc and cpu_intc.
- Add uart1, ehci and ohci nodes.
- Refactor syscon and syscon-reboot.
- Avoid using underscores in node names.
- Rename uart aliases to serial.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Cc: f.fainelli@gmail.com
Cc: jogo@openwrt.org
Cc: cernekee@gmail.com
Cc: robh@kernel.org
Cc: simon@fire.lp0.eu
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13043/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/boot/dts/brcm/bcm6328.dtsi

@@ -23,7 +23,7 @@
 	};
 
 	clocks {
-		periph_clk: periph_clk {
+		periph_clk: periph-clk {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
 			clock-frequency = <50000000>;
@@ -31,11 +31,11 @@
 	};
 
 	aliases {
-		leds0 = &leds0;
-		uart0 = &uart0;
+		serial0 = &uart0;
+		serial1 = &uart1;
 	};
 
-	cpu_intc: cpu_intc {
+	cpu_intc: interrupt-controller {
 		#address-cells = <0>;
 		compatible = "mti,cpu-interrupt-controller";
 
@@ -50,16 +50,16 @@
 		compatible = "simple-bus";
 		ranges;
 
-		periph_intc: periph_intc@10000020 {
-			compatible = "brcm,bcm3380-l2-intc";
-			reg = <0x10000024 0x4 0x1000002c 0x4>,
-			      <0x10000020 0x4 0x10000028 0x4>;
+		periph_intc: interrupt-controller@10000020 {
+			compatible = "brcm,bcm6345-l1-intc";
+			reg = <0x10000020 0x10>,
+			      <0x10000030 0x10>;
 
 			interrupt-controller;
 			#interrupt-cells = <1>;
 
 			interrupt-parent = <&cpu_intc>;
-			interrupts = <2>;
+			interrupts = <2>, <3>;
 		};
 
 		uart0: serial@10000100 {
@@ -71,13 +71,22 @@
 			status = "disabled";
 		};
 
-		timer: timer@10000040 {
+		uart1: serial@10000120 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0x10000120 0x18>;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <39>;
+			clocks = <&periph_clk>;
+			status = "disabled";
+		};
+
+		timer: syscon@10000040 {
 			compatible = "syscon";
 			reg = <0x10000040 0x2c>;
 			native-endian;
 		};
 
-		reboot {
+		reboot: syscon-reboot@10000068 {
 			compatible = "syscon-reboot";
 			regmap = <&timer>;
 			offset = <0x28>;
@@ -91,5 +100,24 @@
 			reg = <0x10000800 0x24>;
 			status = "disabled";
 		};
+
+		ehci: usb@10002500 {
+			compatible = "brcm,bcm6328-ehci", "generic-ehci";
+			reg = <0x10002500 0x100>;
+			big-endian;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <42>;
+			status = "disabled";
+		};
+
+		ohci: usb@10002600 {
+			compatible = "brcm,bcm6328-ohci", "generic-ohci";
+			reg = <0x10002600 0x100>;
+			big-endian;
+			no-big-frame-no;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <41>;
+			status = "disabled";
+		};
 	};
 };