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+Technologic Systems NBUS
+
+The NBUS is a bus used to interface with peripherals in the Technologic
+Systems FPGA on the TS-4600 SoM.
+
+Required properties :
+ - compatible : "technologic,ts-nbus"
+ - #address-cells : must be 1
+ - #size-cells : must be 0
+ - pwms : The PWM bound to the FPGA
+ - ts,data-gpios : The 8 GPIO pins connected to the data lines on the FPGA
+ - ts,csn-gpios : The GPIO pin connected to the csn line on the FPGA
+ - ts,txrx-gpios : The GPIO pin connected to the txrx line on the FPGA
+ - ts,strobe-gpios : The GPIO pin connected to the stobe line on the FPGA
+ - ts,ale-gpios : The GPIO pin connected to the ale line on the FPGA
+ - ts,rdy-gpios : The GPIO pin connected to the rdy line on the FPGA
+
+Child nodes:
+
+The NBUS node can contain zero or more child nodes representing peripherals
+on the bus.
+
+Example:
+
+ nbus {
+ compatible = "technologic,ts-nbus";
+ pinctrl-0 = <&nbus_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pwms = <&pwm 2 83>;
+ ts,data-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH
+ &gpio0 1 GPIO_ACTIVE_HIGH
+ &gpio0 2 GPIO_ACTIVE_HIGH
+ &gpio0 3 GPIO_ACTIVE_HIGH
+ &gpio0 4 GPIO_ACTIVE_HIGH
+ &gpio0 5 GPIO_ACTIVE_HIGH
+ &gpio0 6 GPIO_ACTIVE_HIGH
+ &gpio0 7 GPIO_ACTIVE_HIGH>;
+ ts,csn-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+ ts,txrx-gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>;
+ ts,strobe-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
+ ts,ale-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ ts,rdy-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+
+ watchdog@2a {
+ compatible = "...";
+
+ /* ... */
+ };
+ };