linux-kernel - [PATCH 09/10] arm64: dts: sparx5: Add spi-nor support

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Date:   Wed, 13 May 2020 16:00:30 +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 09/10] arm64: dts: sparx5: Add spi-nor support

This add spi-nor device nodes to the Sparx5 reference 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              | 5 +++--
 arch/arm64/boot/dts/microchip/sparx5_pcb125.dts        | 9 +++++++++
 arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi | 9 +++++++++
 arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi | 9 +++++++++
 4 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index daa216978887d..330fd8b096d4c 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi
@@ -155,8 +155,9 @@ spi0: spi@...104000 {
 			reg-io-width = <4>;
 			reg-shift = <2>;
 			clocks = <&ahb_clk>;
-			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
-
+			/* NB: Polled mode - next line commented out
+			 * interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+			 */
 			status = "disabled";
 		};

diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
index 573309fe45823..d8b5d23abfab0 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
@@ -39,6 +39,15 @@ &sdhci0 {
 	microchip,clock-delay = <10>;
 };

+&spi0 {
+	status = "okay";
+	spi-flash@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <8000000>; /* input clock */
+		reg = <0>; /* CS0 */
+	};
+};
+
 &i2c1 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi b/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi
index 18a535a043686..628a05d3f57ce 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi
@@ -38,6 +38,15 @@ gpio-restart {
 	};
 };

+&spi0 {
+	status = "okay";
+	spi-flash@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <8000000>;
+		reg = <0>;
+	};
+};
+
 &gpio {
 	i2cmux_pins_i: i2cmux-pins-i {
 	       pins = "GPIO_16", "GPIO_17", "GPIO_18", "GPIO_19",
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi b/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi
index d71f11a10b3d2..fb0bc3b241204 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi
@@ -51,6 +51,15 @@ i2cmux_s32: i2cmux-3 {
 	};
 };

+&spi0 {
+	status = "okay";
+	spi-flash@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <8000000>;
+		reg = <0>;
+	};
+};
+
 &axi {
 	i2c0_imux: i2c0-imux@0 {
 		compatible = "i2c-mux-pinctrl";
--
2.26.2