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Subject[PATCH v3 3/3] arm64: tegra: Add QSPI controllers on Tegra234
Date
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>
---
.../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..bd82b324703f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -666,6 +666,34 @@
#pwm-cells = <2>;
};

+ 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";
+ };
+
+ 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..1652d8d9e106 100644
--- a/include/dt-bindings/reset/tegra234-reset.h
+++ b/include/dt-bindings/reset/tegra234-reset.h
@@ -41,6 +41,8 @@
#define TEGRA234_RESET_PWM7 74U
#define TEGRA234_RESET_PWM8 75U
#define TEGRA234_RESET_SDMMC4 85U
+#define TEGRA234_RESET_QSPI0 76U
+#define TEGRA234_RESET_QSPI1 77U
#define TEGRA234_RESET_UARTA 100U
#define TEGRA234_RESET_PEX0_CORE_0 116U
#define TEGRA234_RESET_PEX0_CORE_1 117U
--
2.17.1
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