arm64: dts: ti: k3-j721s2-common-proc-board: Add QSPI flash partition details

J721S2 EVM has MT25QU512AB 64 MiB Quad SPI NOR flash connected
to OSPI1. Add the partition information as per bootloader.

Signed-off-by: Anurag Dutta <a-dutta@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://patch.msgid.link/20260226091730.2735587-1-a-dutta@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Author: Anurag Dutta

arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts

@@ -530,6 +530,48 @@
 		cdns,tchsh-ns = <60>;
 		cdns,tslch-ns = <60>;
 		cdns,read-delay = <2>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "qspi.tiboot3";
+				reg = <0x0 0x80000>;
+			};
+
+			partition@80000 {
+				label = "qspi.tispl";
+				reg = <0x80000 0x200000>;
+			};
+
+			partition@280000 {
+				label = "qspi.u-boot";
+				reg = <0x280000 0x400000>;
+			};
+
+			partition@680000 {
+				label = "qspi.env";
+				reg = <0x680000 0x40000>;
+			};
+
+			partition@6c0000 {
+				label = "qspi.env.backup";
+				reg = <0x6c0000 0x40000>;
+			};
+
+			partition@800000 {
+				label = "qspi.rootfs";
+				reg = <0x800000 0x37c0000>;
+			};
+
+			partition@3fc0000 {
+				label = "qspi.phypattern";
+				reg = <0x3fc0000 0x40000>;
+				bootph-all;
+			};
+		};
 	};
 };