arm64: dts: renesas: draak: Add RPC HyperFlash device node

Add the RPC HyperFlash device node along with its partitions to the
common Draak board DTS file.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/0f3d3018ecfcdce1bce67708708a6d3a98368b10.1648548339.git.geert+renesas@glider.be

arch/arm64/boot/dts/renesas/draak.dtsi

@@ -541,6 +541,12 @@ pwm1_pins: pwm1 {
 		function = "pwm1";
 	};
 
+	rpc_pins: rpc {
+		groups = "rpc_clk2", "rpc_ctrl", "rpc_data", "rpc_reset",
+			 "rpc_int";
+		function = "rpc";
+	};
+
 	scif2_pins: scif2 {
 		groups = "scif2_data";
 		function = "scif2";
@@ -630,6 +636,58 @@ rsnd_for_ak4613: endpoint {
 	};
 };
 
+&rpc {
+	pinctrl-0 = <&rpc_pins>;
+	pinctrl-names = "default";
+
+	/* Left disabled.  To be enabled by firmware when unlocked. */
+
+	flash@0 {
+		compatible = "cypress,hyperflash", "cfi-flash";
+		reg = <0>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			bootparam@0 {
+				reg = <0x00000000 0x040000>;
+				read-only;
+			};
+			bl2@40000 {
+				reg = <0x00040000 0x140000>;
+				read-only;
+			};
+			cert_header_sa6@180000 {
+				reg = <0x00180000 0x040000>;
+				read-only;
+			};
+			bl31@1c0000 {
+				reg = <0x001c0000 0x040000>;
+				read-only;
+			};
+			tee@200000 {
+				reg = <0x00200000 0x440000>;
+				read-only;
+			};
+			uboot@640000 {
+				reg = <0x00640000 0x100000>;
+				read-only;
+			};
+			dtb@740000 {
+				reg = <0x00740000 0x080000>;
+			};
+			kernel@7c0000 {
+				reg = <0x007c0000 0x1400000>;
+			};
+			user@1bc0000 {
+				reg = <0x01bc0000 0x2440000>;
+			};
+		};
+	};
+};
+
 &rwdt {
 	timeout-sec = <60>;
 	status = "okay";