[PATCHv2] arm64: dts: agilex: add QSPI support for Intel Agilex

[Ooi, Joyce]

This patch adds QSPI flash interface in device tree for Intel Agilex

Signed-off-by: Ooi, Joyce <joyce.ooi@xxxxxxxxx>
---
v2: update the qspi_rootfs partition size
---
 arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts
index 7814a9e..8de8118 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts
@@ -73,3 +73,38 @@
 &watchdog0 {
 	status = "okay";
 };
+
+&qspi {
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "mt25qu02g";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+
+		m25p,fast-read;
+		cdns,page-size = <256>;
+		cdns,block-size = <16>;
+		cdns,read-delay = <1>;
+		cdns,tshsl-ns = <50>;
+		cdns,tsd2d-ns = <50>;
+		cdns,tchsh-ns = <4>;
+		cdns,tslch-ns = <4>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			qspi_boot: partition@0 {
+				label = "Boot and fpga data";
+				reg = <0x0 0x034B0000>;
+			};
+
+			qspi_rootfs: partition@34B0000 {
+				label = "Root Filesystem - JFFS2";
+				reg = <0x034B0000 0x0CB50000>;
+			};
+		};
+	};
+};
-- 
1.9.1