linux-kernel - [PATCH] arm64: dts: agilex: add QSPI support for Intel Agilex

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Date:   Tue,  8 Oct 2019 01:46:39 -0700
From:   Joyce Ooi <joyce.ooi@...el.com>
To:     Dinh Nguyen <dinguyen@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Joyce Ooi <joyce.ooi@...el.com>,
        Ong Hean Loong <hean.loong.ong@...el.com>,
        See Chin Liang <chin.liang.see@...el.com>,
        Tan Ley Foon <ley.foon.tan@...el.com>
Subject: [PATCH] arm64: dts: agilex: add QSPI support for Intel Agilex

From: "Ooi, Joyce" <joyce.ooi@...el.com>

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

Signed-off-by: Ooi, Joyce <joyce.ooi@...el.com>
---
 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 2ba9a5dc91aa..e3c5b007fb51 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts
@@ -81,3 +81,38 @@
 &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@...0000 {
+				label = "Root Filesystem - JFFS2";
+				reg = <0x034B0000 0x0EB50000>;
+			};
+		};
+	};
+};
-- 
2.13.0