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From: Krishna Yarlagadda <kyarlagadda@nvidia.com>
To: <broonie@kernel.org>, <thierry.reding@gmail.com>,
	<jonathanh@nvidia.com>, <linux-spi@vger.kernel.org>,
	<linux-tegra@vger.kernel.org>, <ashishsingha@nvidia.com>
Cc: <skomatineni@nvidia.com>, <ldewangan@nvidia.com>,
	<robh+dt@kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <p.zabel@pengutronix.de>,
	Krishna Yarlagadda <kyarlagadda@nvidia.com>
Subject: [PATCH v4] arm64: tegra: Add QSPI controllers on Tegra234
Date: Wed, 9 Mar 2022 00:00:26 +0530	[thread overview]
Message-ID: <20220308183026.66394-1-kyarlagadda@nvidia.com> (raw)

From: Ashish Singhal <ashishsingha@nvidia.com>

This adds the QSPI controllers on the Tegra234 SoC and populates the
SPI NOR flash device for the Jetson AGX Orin platform.

Signed-off-by: Ashish Singhal <ashishsingha@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
---
v4:
sort definitions in include and dt files

 .../boot/dts/nvidia/tegra234-p3701-0000.dtsi  | 12 ++++++++
 arch/arm64/boot/dts/nvidia/tegra234.dtsi      | 28 +++++++++++++++++++
 include/dt-bindings/clock/tegra234-clock.h    |  8 ++++++
 include/dt-bindings/reset/tegra234-reset.h    |  2 ++
 4 files changed, 50 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
index d95a542c0bca..798de9226ba5 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
@@ -7,6 +7,18 @@
 	compatible = "nvidia,p3701-0000", "nvidia,tegra234";
 
 	bus@0 {
+		spi@3270000 {
+			status = "okay";
+
+			flash@0 {
+				compatible = "jedec,spi-nor";
+				reg = <0>;
+				spi-max-frequency = <102000000>;
+				spi-tx-bus-width = <4>;
+				spi-rx-bus-width = <4>;
+			};
+		};
+
 		mmc@3460000 {
 			status = "okay";
 			bus-width = <8>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index aaace605bdaa..448512af7dea 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -654,6 +654,20 @@
 			reset-names = "i2c";
 		};
 
+		spi@3270000 {
+			compatible = "nvidia,tegra234-qspi";
+			reg = <0x3270000 0x1000>;
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&bpmp TEGRA234_CLK_QSPI0_2X_PM>,
+				 <&bpmp TEGRA234_CLK_QSPI0_PM>;
+			clock-names = "qspi", "qspi_out";
+			resets = <&bpmp TEGRA234_RESET_QSPI0>;
+			reset-names = "qspi";
+			status = "disabled";
+		};
+
 		pwm1: pwm@3280000 {
 			compatible = "nvidia,tegra194-pwm",
 				     "nvidia,tegra186-pwm";
@@ -666,6 +680,20 @@
 			#pwm-cells = <2>;
 		};
 
+		spi@3300000 {
+			compatible = "nvidia,tegra234-qspi";
+			reg = <0x3300000 0x1000>;
+			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&bpmp TEGRA234_CLK_QSPI1_2X_PM>,
+				 <&bpmp TEGRA234_CLK_QSPI1_PM>;
+			clock-names = "qspi", "qspi_out";
+			resets = <&bpmp TEGRA234_RESET_QSPI1>;
+			reset-names = "qspi";
+			status = "disabled";
+		};
+
 		mmc@3460000 {
 			compatible = "nvidia,tegra234-sdhci", "nvidia,tegra186-sdhci";
 			reg = <0x03460000 0x20000>;
diff --git a/include/dt-bindings/clock/tegra234-clock.h b/include/dt-bindings/clock/tegra234-clock.h
index 8cae969e8cba..bd4c3086a2da 100644
--- a/include/dt-bindings/clock/tegra234-clock.h
+++ b/include/dt-bindings/clock/tegra234-clock.h
@@ -140,6 +140,14 @@
 #define TEGRA234_CLK_PEX2_C9_CORE		173U
 /** @brief output of gate CLK_ENB_PEX2_CORE_10 */
 #define TEGRA234_CLK_PEX2_C10_CORE		187U
+/** @brief CLK_RST_CONTROLLER_CLK_SOURCE_QSPI0 switch divider output */
+#define TEGRA234_CLK_QSPI0_2X_PM		192U
+/** @brief CLK_RST_CONTROLLER_CLK_SOURCE_QSPI1 switch divider output */
+#define TEGRA234_CLK_QSPI1_2X_PM		193U
+/** @brief output of the divider QSPI_CLK_DIV2_SEL in CLK_RST_CONTROLLER_CLK_SOURCE_QSPI0 */
+#define TEGRA234_CLK_QSPI0_PM			194U
+/** @brief output of the divider QSPI_CLK_DIV2_SEL in CLK_RST_CONTROLLER_CLK_SOURCE_QSPI1 */
+#define TEGRA234_CLK_QSPI1_PM			195U
 /** @brief CLK_RST_CONTROLLER_CLK_SOURCE_SDMMC_LEGACY_TM switch divider output */
 #define TEGRA234_CLK_SDMMC_LEGACY_TM		219U
 /** @brief output of gate CLK_ENB_PEX0_CORE_0 */
diff --git a/include/dt-bindings/reset/tegra234-reset.h b/include/dt-bindings/reset/tegra234-reset.h
index 1362cd5e03f0..547ca3b60caa 100644
--- a/include/dt-bindings/reset/tegra234-reset.h
+++ b/include/dt-bindings/reset/tegra234-reset.h
@@ -40,6 +40,8 @@
 #define TEGRA234_RESET_PWM6			73U
 #define TEGRA234_RESET_PWM7			74U
 #define TEGRA234_RESET_PWM8			75U
+#define TEGRA234_RESET_QSPI0			76U
+#define TEGRA234_RESET_QSPI1			77U
 #define TEGRA234_RESET_SDMMC4			85U
 #define TEGRA234_RESET_UARTA			100U
 #define TEGRA234_RESET_PEX0_CORE_0		116U
-- 
2.17.1


             reply	other threads:[~2022-03-08 18:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-08 18:30 Krishna Yarlagadda [this message]
2022-03-09  9:00 ` [PATCH v4] arm64: tegra: Add QSPI controllers on Tegra234 Jon Hunter
2022-03-09 14:02 ` Rob Herring
2022-04-06 13:28 ` Thierry Reding

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