linux-kernel - [PATCH v4 7/9] arm64: tegra: Enable QSPI on Jetson Nano

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Date:   Thu, 17 Dec 2020 12:28:45 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <broonie@...nel.org>, <robh+dt@...nel.org>, <lukas@...ner.de>
CC:     <skomatineni@...dia.com>, <bbrezillon@...nel.org>,
        <p.yadav@...com>, <tudor.ambarus@...rochip.com>,
        <linux-spi@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v4 7/9] arm64: tegra: Enable QSPI on Jetson Nano

This patch enables QSPI on Jetson Nano.

Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 12 ++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           |  5 +++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
index 6a877de..a1b4603 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
@@ -638,6 +638,18 @@
 		};
 	};
 
+	spi@...10000 {
+		status = "okay";
+
+		flash@0 {
+			compatible = "spi-nor";
+			reg = <0>;
+			spi-max-frequency = <104000000>;
+			spi-tx-bus-width = <2>;
+			spi-rx-bus-width = <2>;
+		};
+	};
+
 	clk32k_in: clock@0 {
 		compatible = "fixed-clock";
 		clock-frequency = <32768>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 4fbf8c1..998fa81 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -1536,8 +1536,9 @@
 		interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
 		#address-cells = <1>;
 		#size-cells = <0>;
-		clocks = <&tegra_car TEGRA210_CLK_QSPI>;
-		clock-names = "qspi";
+		clocks = <&tegra_car TEGRA210_CLK_QSPI>,
+			 <&tegra_car TEGRA210_CLK_QSPI_PM>;
+		clock-names = "qspi", "qspi_out";
 		resets = <&tegra_car 211>;
 		reset-names = "qspi";
 		dmas = <&apbdma 5>, <&apbdma 5>;
-- 
2.7.4