arm64: dts: ti: k3-j7200-mcu-wakeup: Add HyperBus node

J7200 has a Flash SubSystem that has one OSPI and one HyperBus.. Add
DT nodes for HyperBus controller for now.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Link: https://lore.kernel.org/r/20200923163150.16973-2-vigneshr@ti.com

arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi

@@ -243,4 +243,31 @@
 		clocks = <&k3_clks 197 1>;
 		power-domains = <&k3_pds 197 TI_SCI_PD_SHARED>;
 	};
+
+	fss: syscon@47000000 {
+		compatible = "syscon", "simple-mfd";
+		reg = <0x00 0x47000000 0x00 0x100>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		hbmc_mux: hbmc-mux {
+			compatible = "mmio-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x4 0x2>; /* HBMC select */
+		};
+
+		hbmc: hyperbus@47034000 {
+			compatible = "ti,am654-hbmc";
+			reg = <0x00 0x47034000 0x00 0x100>,
+				<0x05 0x00000000 0x01 0x0000000>;
+			power-domains = <&k3_pds 102 TI_SCI_PD_EXCLUSIVE>;
+			clocks = <&k3_clks 102 0>;
+			assigned-clocks = <&k3_clks 102 5>;
+			assigned-clock-rates = <333333333>;
+			#address-cells = <2>;
+			#size-cells = <1>;
+			mux-controls = <&hbmc_mux 0>;
+		};
+	};
 };