linux-kernel - [PATCHv3] arm64: dts: ls1028a: add flexspi nodes

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Date:   Thu, 23 May 2019 01:47:42 +0000
From:   Xiaowei Bao <xiaowei.bao@....com>
To:     "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Xiaowei Bao <xiaowei.bao@....com>
Subject: [PATCHv3] arm64: dts: ls1028a: add flexspi nodes

From: Xiaowei Bao <xiaowei.bao@....com>

Add fspi node property for LS1028A SoC for FlexSPI driver.
Property added for the FlexSPI controller and for the connected
slave device for the LS1028ARDB and LS1028AQDS target.
This is having one SPI-NOR flash device, mt35xu02g connected at
CS0.

Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
---
v3:
 - move the "spansion,m25p80" compatible property to the top.

 arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts |   15 +++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts |   15 +++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi    |   12 ++++++++++++
 3 files changed, 42 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
index 5c3ff43..b8cabd3 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
@@ -166,6 +166,21 @@
 	};
 };
 
+&fspi {
+	status = "okay";
+	mt35xu02g: flash@0 {
+		compatible = "spansion,m25p80";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		m25p,fast-read;
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+		/* The following setting enables 1-1-8 (CMD-ADDR-DATA) mode */
+		spi-rx-bus-width = <8>; /* 8 SPI Rx lines */
+		spi-tx-bus-width = <1>; /* 1 SPI Tx line */
+	};
+};
+
 &sai1 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
index f7d4da6..b5e052c 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
@@ -152,6 +152,21 @@
 	};
 };
 
+&fspi {
+	status = "okay";
+	mt35xu02g: flash@0 {
+		compatible = "spansion,m25p80";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		m25p,fast-read;
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+		/* The following setting enables 1-1-8 (CMD-ADDR-DATA) mode */
+		spi-rx-bus-width = <8>; /* 8 SPI Rx lines */
+		spi-tx-bus-width = <1>; /* 1 SPI Tx line */
+	};
+};
+
 &duart0 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index e8095cf..06d9c90 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -189,6 +189,18 @@
 			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
 		};
 
+		fspi: spi@...0000 {
+			compatible = "nxp,lx2160a-fspi";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0 0x20c0000 0x0 0x10000>,
+			      <0x0 0x20000000 0x0 0x10000000>;
+			reg-names = "FSPI", "FSPI-memory";
+			interrupts = <0 25 0x4>; /* Level high type */
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "fspi_en", "fspi";
+		};
+
 		i2c0: i2c@...0000 {
 			compatible = "fsl,vf610-i2c";
 			#address-cells = <1>;
-- 
1.7.1