linux-kernel - [PATCH 10/10] arm64: dts: sparx5: Add spi-nand devices

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Date:   Wed, 13 May 2020 16:00:31 +0200
From:   Lars Povlsen <lars.povlsen@...rochip.com>
To:     Mark Brown <broonie@...nel.org>, SoC Team <soc@...nel.org>
CC:     Lars Povlsen <lars.povlsen@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        <linux-spi@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 10/10] arm64: dts: sparx5: Add spi-nand devices

This patch add spi-nand DT nodes to the applicable Sparx5 boards.

Reviewed-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@...rochip.com>
---
 arch/arm64/boot/dts/microchip/sparx5.dtsi     | 20 ++++++++++++++++
 .../boot/dts/microchip/sparx5_pcb125.dts      |  7 ++++++
 .../boot/dts/microchip/sparx5_pcb134.dts      | 22 ++++++++++++++++++
 .../boot/dts/microchip/sparx5_pcb135.dts      | 23 +++++++++++++++++++
 4 files changed, 72 insertions(+)

diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index 330fd8b096d4c..60629861a5157 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi
@@ -193,6 +193,26 @@ gpio: pinctrl@...0101e0 {
 			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 			#interrupt-cells = <2>;

+			cs1_pins: cs1-pins {
+				pins = "GPIO_16";
+				function = "si";
+			};
+
+			cs2_pins: cs2-pins {
+				pins = "GPIO_17";
+				function = "si";
+			};
+
+			cs3_pins: cs3-pins {
+				pins = "GPIO_18";
+				function = "si";
+			};
+
+			si2_pins: si2-pins {
+				pins = "GPIO_39", "GPIO_40", "GPIO_41";
+				function = "si2";
+			};
+
 			uart_pins: uart-pins {
 				pins = "GPIO_10", "GPIO_11";
 				function = "uart";
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
index d8b5d23abfab0..94c4c3fd5a786 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
@@ -46,6 +46,13 @@ spi-flash@0 {
 		spi-max-frequency = <8000000>; /* input clock */
 		reg = <0>; /* CS0 */
 	};
+	spi-flash@1 {
+		compatible = "spi-nand";
+		pinctrl-0 = <&cs1_pins>;
+		pinctrl-names = "default";
+		spi-max-frequency = <8000000>;
+		reg = <1>; /* CS1 */
+	};
 };

 &i2c1 {
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts
index feee4e99ff57c..9e8dc725a954a 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts
@@ -15,3 +15,25 @@ memory@0 {
 		reg = <0x00000000 0x00000000 0x10000000>;
 	};
 };
+
+&gpio {
+	cs14_pins: cs14-pins {
+		pins = "GPIO_44";
+		function = "si";
+	};
+};
+
+&spi0 {
+	pinctrl-0 = <&si2_pins>;
+	pinctrl-names = "default";
+	interface-mapping-mask = <0x4000>;	/* NAND CS14 = SPI2 */
+	spi-rx-delay-us = <500>;		/* Tune for speed */
+	/* Dedicated SPI2 interface */
+	spi-flash@e {
+		compatible = "spi-nand";
+		pinctrl-0 = <&cs14_pins>;
+		pinctrl-names = "default";
+		spi-max-frequency = <42000000>;
+		reg = <14>;
+	};
+};
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts
index 20e409a9be196..a31e10911dbaf 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts
@@ -15,3 +15,26 @@ memory@0 {
 		reg = <0x00000000 0x00000000 0x10000000>;
 	};
 };
+
+&gpio {
+	cs14_pins: cs14-pins {
+		pins = "GPIO_44";
+		function = "si";
+	};
+};
+
+&spi0 {
+	status = "okay";
+	pinctrl-0 = <&si2_pins>;
+	pinctrl-names = "default";
+	interface-mapping-mask = <0x4000>;	/* NAND CS14 = SPI2 */
+	spi-rx-delay-us = <500>;		/* Tune for speed */
+	/* Dedicated SPI2 interface */
+	spi-flash@e {
+		compatible = "spi-nand";
+		pinctrl-0 = <&cs14_pins>;
+		pinctrl-names = "default";
+		spi-max-frequency = <42000000>;
+		reg = <14>;
+	};
+};
--
2.26.2