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From:   Kuldeep Singh <kuldeep.singh@nxp.com>
To:     Shawn Guo <shawnguo@kernel.org>,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     Li Yang <leoyang.li@nxp.com>, Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Kuldeep Singh <kuldeep.singh@nxp.com>,
        Ashish Kumar <Ashish.kumar@nxp.com>
Subject: [PATCH] arm64: dts: ls1012a: Add QSPI node properties
Date:   Mon, 30 Mar 2020 16:46:30 +0530
Message-Id: <1585566991-24049-1-git-send-email-kuldeep.singh@nxp.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Add support for QSPI on NXP layerscape LS1012A-RDB, LS1012A-QDS,
LS1012A-FRDM and LS1012A-FRWY boards.

LS1012A-RDB has 2 Spansion "s25fs512s" flashes of size 64M each and only
one can be accessed at a time.
LS1012A-QDS/FRDM has 1 spansion "s25fs512s" flash of size 64M.
LS1012A-FRWY has one winbond "w25q16dw" flash of size 2M.

Use generic compatibles as "jedec,spi-nor" for automatic detection of
flash. Configure RX and TX buswidth values as 2 as only two I/O lines are
available for data transfer.

Add ls1012a(si) node alongwith flash nodes.

Signed-off-by: Ashish Kumar <Ashish.kumar@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
---
 arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts | 15 +++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1012a-frwy.dts | 15 +++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts  | 15 +++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts  | 15 +++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi     | 13 +++++++++++++
 5 files changed, 73 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
index f90c040..6770266 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
@@ -74,6 +74,21 @@
 	};
 };
 
+&qspi {
+	status = "okay";
+
+	s25fs512s0: flash@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <50000000>;
+		m25p,fast-read;
+		reg = <0>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <2>;
+	};
+};
+
 &sai2 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frwy.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frwy.dts
index 8749634..6290e2f 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frwy.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frwy.dts
@@ -23,3 +23,18 @@
 &i2c0 {
 	status = "okay";
 };
+
+&qspi {
+	status = "okay";
+
+	w25q16dw0: flash@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		m25p,fast-read;
+		spi-max-frequency = <50000000>;
+		reg = <0>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <2>;
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts
index 2fb1cb1..449475a 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts
@@ -128,6 +128,21 @@
 	};
 };
 
+&qspi {
+	status = "okay";
+
+	s25fs512s0: flash@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <50000000>;
+		m25p,fast-read;
+		reg = <0>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <2>;
+	};
+};
+
 &sai2 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
index 5edb1e1..d45c176 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
@@ -35,6 +35,21 @@
 	status = "okay";
 };
 
+&qspi {
+	status = "okay";
+
+	s25fs512s0: flash@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <50000000>;
+		m25p,fast-read;
+		reg = <0>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <2>;
+	};
+};
+
 &sata {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index 3379193..006e544 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -137,6 +137,19 @@
 		#size-cells = <2>;
 		ranges;
 
+		qspi: spi@1550000 {
+			compatible = "fsl,ls1021a-qspi";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0 0x1550000 0x0 0x10000>,
+				<0x0 0x40000000 0x0 0x10000000>;
+			reg-names = "QuadSPI", "QuadSPI-memory";
+			interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+			clock-names = "qspi_en", "qspi";
+			clocks = <&clockgen 4 0>, <&clockgen 4 0>;
+			status = "disabled";
+		};
+
 		esdhc0: esdhc@1560000 {
 			compatible = "fsl,ls1012a-esdhc", "fsl,esdhc";
 			reg = <0x0 0x1560000 0x0 0x10000>;
-- 
2.7.4