ARM: zynq: Add partition description

Xilinx is using standard mtd partition layout for quite a long time. It is
used for testing purpose on evaluation boards.
Also #address/size-cells shouldn't be present without nodes which should
use them that's why move them from zynq-7000.dtsi to nand/nor nodes
directly.

The patch was tested on zc706 and zedboard(with also increasing max
frequency and rx bus width).

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/4c3348981bba32d3892194420d78fe8621c47534.1698837725.git.michal.simek@amd.com
diff --git a/arch/arm/dts/zynq-zed.dts b/arch/arm/dts/zynq-zed.dts
index 5320b4b..70bc418 100644
--- a/arch/arm/dts/zynq-zed.dts
+++ b/arch/arm/dts/zynq-zed.dts
@@ -55,8 +55,35 @@
 	flash@0 {
 		compatible = "spansion,s25fl256s1", "jedec,spi-nor";
 		reg = <0>;
-		spi-max-frequency = <30000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <50000000>;
 		m25p,fast-read;
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			partition@0 {
+				label = "qspi-fsbl-uboot";
+				reg = <0x0 0x100000>;
+			};
+			partition@100000 {
+				label = "qspi-linux";
+				reg = <0x100000 0x500000>;
+			};
+			partition@600000 {
+				label = "qspi-device-tree";
+				reg = <0x600000 0x20000>;
+			};
+			partition@620000 {
+				label = "qspi-rootfs";
+				reg = <0x620000 0x5e0000>;
+			};
+			partition@c00000 {
+				label = "qspi-bitstream";
+				reg = <0xc00000 0x400000>;
+			};
+		};
 	};
 };