[PATCH 1/4] dt-bindings: tegra: Document Jetson Orin NX

[PATCH 1/4] dt-bindings: tegra: Document Jetson Orin NX

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

The Jetson Orin NX is the latest iteration in the NX family of Jetson
products. Document the compatible strings used for these devices.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 Documentation/devicetree/bindings/arm/tegra.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/tegra.yaml b/Documentation/devicetree/bindings/arm/tegra.yaml
index 939a77c767bb..6c13d5e5719a 100644
--- a/Documentation/devicetree/bindings/arm/tegra.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra.yaml
@@ -213,5 +213,9 @@ properties:
           - const: nvidia,p3737-0000+p3701-0000
           - const: nvidia,p3701-0000
           - const: nvidia,tegra234
+      - description: Jetson Orin NX
+        items:
+          - const: nvidia,p3767-0000
+          - const: nvidia,tegra234
 
 additionalProperties: true
-- 
2.39.2

[PATCH 2/4] dt-bindings: tegra: Document P3768+P3767 reference platform

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

Document the combination of the P3768 carrier board with the P3767
(Jetson Orin NX) module.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 Documentation/devicetree/bindings/arm/tegra.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/tegra.yaml b/Documentation/devicetree/bindings/arm/tegra.yaml
index 6c13d5e5719a..014b32f780fe 100644
--- a/Documentation/devicetree/bindings/arm/tegra.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra.yaml
@@ -217,5 +217,9 @@ properties:
         items:
           - const: nvidia,p3767-0000
           - const: nvidia,tegra234
+      - items:
+          - const: nvidia,p3768-0000+p3767-0000
+          - const: nvidia,p3767-0000
+          - const: nvidia,tegra234
 
 additionalProperties: true
-- 
2.39.2

[PATCH 3/4] arm64: tegra: Add Jetson Orin NX support

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

This adds a device tree for the Jetson Orin NX module, which is Jetson
AGX Orin's little sibling with 6 or 8 ARM Cortex-A78AE cores, an Ampere
GPU (1024 GPU and 32 tensor cores) and a number of accelerators for
machine learning, image processing and more.

The Jetson Orin NX comes with either 8 or 16 GiB of 128-bit LPDDR5 and
supports NVME for mass storage.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../boot/dts/nvidia/tegra234-p3767-0000.dtsi  | 173 ++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3767-0000.dtsi

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3767-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3767-0000.dtsi
new file mode 100644
index 000000000000..3f9f7c8534a2
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3767-0000.dtsi
@@ -0,0 +1,173 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "tegra234.dtsi"
+
+/ {
+	model = "NVIDIA Jetson Orin NX";
+	compatible = "nvidia,p3767-0000", "nvidia,tegra234";
+
+	bus@0 {
+		i2c@3160000 {
+			status = "okay";
+
+			eeprom@50 {
+				compatible = "atmel,24c02";
+				reg = <0x50>;
+
+				label = "module";
+				vcc-supply = <&vdd_1v8_hs>;
+				address-width = <8>;
+				pagesize = <8>;
+				size = <256>;
+				read-only;
+			};
+		};
+
+		padctl@3520000 {
+			vclamp-usb-supply = <&vdd_1v8_ao>;
+			avdd-usb-supply = <&vdd_3v3_ao>;
+		};
+
+		rtc@c2a0000 {
+			status = "okay";
+		};
+
+		pmc@c360000 {
+			nvidia,invert-interrupt;
+		};
+	};
+
+	vdd_5v0_sys: regulator-vdd-5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_5V0_SYS";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	vdd_1v8_hs: regulator-vdd-1v8-hs {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_1V8_HS";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+	};
+
+	vdd_1v8_ao: regulator-vdd-1v8-ao {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_1V8_AO";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		vin-supply = <&vdd_5v0_sys>;
+	};
+
+	vdd_3v3_ao: regulator-vdd-3v3-ao {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_3V3_AO";
+		regulator-min-microvolt = <33000000>;
+		regulator-max-microvolt = <33000000>;
+		regulator-always-on;
+		vin-supply = <&vdd_5v0_sys>;
+	};
+
+	thermal-zones {
+		cpu-thermal {
+			polling-delay = <1000>;
+			polling-delay-passive = <1000>;
+			status = "okay";
+
+			trips {
+				critical {
+					temperature = <104500>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+
+				hot {
+					temperature = <99000>;
+					hysteresis = <1000>;
+					type = "hot";
+				};
+
+				board_trip_passive: passive {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				board_trip_active2: active-2 {
+					temperature = <80000>;
+					hysteresis = <4000>;
+					type = "active";
+				};
+
+				board_trip_active1: active-1 {
+					temperature = <65000>;
+					hysteresis = <4000>;
+					type = "active";
+				};
+
+				board_trip_active0: active-0 {
+					temperature = <50000>;
+					hysteresis = <4000>;
+					type = "active";
+				};
+			};
+
+			cooling-maps {
+				passive {
+					cooling-device = <&fan 3 3>;
+					trip = <&board_trip_passive>;
+				};
+
+				active2 {
+					cooling-device = <&fan 2 3>;
+					trip = <&board_trip_active2>;
+				};
+
+				active1 {
+					cooling-device = <&fan 1 2>;
+					trip = <&board_trip_active1>;
+				};
+
+				active0 {
+					cooling-device = <&fan 0 1>;
+					trip = <&board_trip_active0>;
+				};
+			};
+		};
+
+		gpu-thermal {
+			status = "okay";
+		};
+
+		cv0-thermal {
+			status = "okay";
+		};
+
+		cv1-thermal {
+			status = "okay";
+		};
+
+		cv2-thermal {
+			status = "okay";
+		};
+
+		soc0-thermal {
+			status = "okay";
+		};
+
+		soc1-thermal {
+			status = "okay";
+		};
+
+		soc2-thermal {
+			status = "okay";
+		};
+
+		tj-thermal {
+			status = "okay";
+		};
+	};
+};
-- 
2.39.2

[PATCH 4/4] arm64: tegra: Add support for P3768+P3767

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

Add support for the combination of the NVIDIA Jetson Orin NX (P3767)
module and the P3768 carrier board.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../nvidia/tegra234-p3768-0000+p3767-0000.dts | 218 ++++++++++++++++++
 .../boot/dts/nvidia/tegra234-p3768-0000.dtsi  | 133 +++++++++++
 2 files changed, 351 insertions(+)
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
new file mode 100644
index 000000000000..d4d388e53072
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/input/gpio-keys.h>
+
+#include "tegra234-p3767-0000.dtsi"
+#include "tegra234-p3768-0000.dtsi"
+
+/ {
+	compatible = "nvidia,p3768-0000+p3767-0000", "nvidia,p3767-0000", "nvidia,tegra234";
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		fb: framebuffer@0 {
+			compatible = "framebuffer";
+			reg = <0x0 0x0 0x0 0x0>;
+			iommu-addresses = <&dc0 0x0 0x0 0x0 0x0>;
+		};
+	};
+
+	aliases {
+		serial0 = &tcu;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+
+		framebuffer {
+			compatible = "simple-framebuffer";
+			status = "disabled";
+			memory-region = <&fb>;
+			power-domains = <&bpmp TEGRA234_POWER_DOMAIN_DISP>;
+			clocks = <&bpmp TEGRA234_CLK_HUB>,
+				 <&bpmp TEGRA234_CLK_DISP>,
+				 <&bpmp TEGRA234_CLK_NVDISPLAY_P0>,
+				 <&bpmp TEGRA234_CLK_DPAUX>,
+				 <&bpmp TEGRA234_CLK_DISPPLL>,
+				 <&bpmp TEGRA234_CLK_DISPHUBPLL>,
+				 /* MORE!!! */
+				 <&bpmp TEGRA234_CLK_NVDISPLAY_P1>,
+				 <&bpmp TEGRA234_CLK_FUSE>,
+				 <&bpmp TEGRA234_CLK_DSIPLL_VCO>,
+				 <&bpmp TEGRA234_CLK_DSIPLL_CLKOUTPN>,
+				 <&bpmp TEGRA234_CLK_DSIPLL_CLKOUTA>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_VCO>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_CLKOUTPN>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_CLKOUTA>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_CLKOUTB>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_DIV10>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_DIV25>,
+				 <&bpmp TEGRA234_CLK_SPPLL0_DIV27PN>,
+				 <&bpmp TEGRA234_CLK_SPPLL1_VCO>,
+				 <&bpmp TEGRA234_CLK_SPPLL1_CLKOUTPN>,
+				 <&bpmp TEGRA234_CLK_SPPLL1_DIV27PN>,
+				 <&bpmp TEGRA234_CLK_VPLL0_REF>,
+				 <&bpmp TEGRA234_CLK_VPLL0>,
+				 <&bpmp TEGRA234_CLK_VPLL1>,
+				 <&bpmp TEGRA234_CLK_NVDISPLAY_P0_REF>,
+				 <&bpmp TEGRA234_CLK_RG0>,
+				 <&bpmp TEGRA234_CLK_RG1>,
+				 <&bpmp TEGRA234_CLK_DSI_LP>,
+				 <&bpmp TEGRA234_CLK_DSI_CORE>,
+				 <&bpmp TEGRA234_CLK_DSI_PIXEL>,
+				 <&bpmp TEGRA234_CLK_PRE_SOR0>,
+				 <&bpmp TEGRA234_CLK_PRE_SOR1>,
+				 <&bpmp TEGRA234_CLK_DP_LINK_REF>,
+				 <&bpmp TEGRA234_CLK_SOR_LINKA_INPUT>,
+				 <&bpmp TEGRA234_CLK_SOR_LINKA_AFIFO>,
+				 <&bpmp TEGRA234_CLK_SOR_LINKA_AFIFO_M>,
+				 <&bpmp TEGRA234_CLK_RG0_M>,
+				 <&bpmp TEGRA234_CLK_RG1_M>,
+				 <&bpmp TEGRA234_CLK_SOR0_M>,
+				 <&bpmp TEGRA234_CLK_SOR1_M>,
+				 <&bpmp TEGRA234_CLK_PLLHUB>,
+				 <&bpmp TEGRA234_CLK_SOR0>,
+				 <&bpmp TEGRA234_CLK_SOR1>,
+				 <&bpmp TEGRA234_CLK_SOR_PAD_INPUT>,
+				 <&bpmp TEGRA234_CLK_PRE_SF0>,
+				 <&bpmp TEGRA234_CLK_SF0>,
+				 <&bpmp TEGRA234_CLK_SF1>,
+				 <&bpmp TEGRA234_CLK_DSI_PAD_INPUT>,
+				 <&bpmp TEGRA234_CLK_PRE_SOR0_REF>,
+				 <&bpmp TEGRA234_CLK_PRE_SOR1_REF>,
+				 <&bpmp TEGRA234_CLK_SOR0_PLL_REF>,
+				 <&bpmp TEGRA234_CLK_SOR1_PLL_REF>,
+				 <&bpmp TEGRA234_CLK_SOR0_REF>,
+				 <&bpmp TEGRA234_CLK_SOR1_REF>,
+				 <&bpmp TEGRA234_CLK_OSC>,
+				 <&bpmp TEGRA234_CLK_DSC>,
+				 <&bpmp TEGRA234_CLK_MAUD>,
+				 <&bpmp TEGRA234_CLK_AZA_2XBIT>,
+				 <&bpmp TEGRA234_CLK_AZA_BIT>,
+				 <&bpmp TEGRA234_CLK_MIPI_CAL>,
+				 <&bpmp TEGRA234_CLK_UART_FST_MIPI_CAL>,
+				 <&bpmp TEGRA234_CLK_SOR0_DIV>;
+			resets = <&bpmp TEGRA234_RESET_NVDISPLAY>,
+				 <&bpmp TEGRA234_RESET_DPAUX>,
+				 <&bpmp TEGRA234_RESET_DSI_CORE>,
+				 <&bpmp TEGRA234_RESET_MIPI_CAL>;
+			width = <0>;
+			height = <0>;
+			stride = <0>;
+			format = "x8r8g8b8";
+		};
+	};
+
+	bus@0 {
+		serial@31d0000 {
+			current-speed = <115200>;
+			status = "okay";
+		};
+
+		pwm@32a0000 {
+			assigned-clocks = <&bpmp TEGRA234_CLK_PWM3>;
+			assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLP_OUT0>;
+			status = "okay";
+		};
+
+		padctl@3520000 {
+			status = "okay";
+		};
+
+		/* C1 - M.2 Key-E */
+		pcie@14100000 {
+			status = "okay";
+
+			vddio-pex-ctl-supply = <&vdd_1v8_ao>;
+
+			phys = <&p2u_hsio_3>;
+			phy-names = "p2u-0";
+		};
+
+		/* C4 - M.2 Key-M */
+		pcie@14160000 {
+			status = "okay";
+
+			vddio-pex-ctl-supply = <&vdd_1v8_ao>;
+
+			phys = <&p2u_hsio_4>, <&p2u_hsio_5>, <&p2u_hsio_6>,
+			       <&p2u_hsio_7>;
+			phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3";
+		};
+
+		/* C8 - Ethernet */
+		pcie@140a0000 {
+			status = "okay";
+
+			num-lanes = <2>;
+
+			phys = <&p2u_gbe_2>, <&p2u_gbe_3>;
+			phy-names = "p2u-0", "p2u-1";
+
+			vddio-pex-ctl-supply = <&vdd_1v8_ao>;
+			vpcie3v3-supply = <&vdd_3v3_pcie>;
+		};
+
+		/* C7 - M.2 Key-M */
+		pcie@141e0000 {
+			status = "okay";
+
+			vddio-pex-ctl-supply = <&vdd_1v8_ao>;
+
+			phys = <&p2u_gbe_0>, <&p2u_gbe_1>;
+			phy-names = "p2u-0", "p2u-1";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		key-force-recovery {
+			label = "Force Recovery";
+			gpios = <&gpio TEGRA234_MAIN_GPIO(G, 0) GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_KEY>;
+			linux,code = <BTN_1>;
+		};
+
+		key-power {
+			label = "Power";
+			gpios = <&gpio_aon TEGRA234_AON_GPIO(EE, 4) GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_KEY>;
+			linux,code = <KEY_POWER>;
+			wakeup-event-action = <EV_ACT_ASSERTED>;
+			wakeup-source;
+		};
+
+		key-suspend {
+			label = "Suspend";
+			gpios = <&gpio TEGRA234_MAIN_GPIO(G, 2) GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_KEY>;
+			linux,code = <KEY_SLEEP>;
+		};
+	};
+
+	fan: pwm-fan {
+		compatible = "pwm-fan";
+		pwms = <&pwm3 0 45334>;
+		cooling-levels = <0 95 178 255>;
+		#cooling-cells = <2>;
+	};
+
+	vdd_3v3_pcie: regulator-vdd-3v3-pcie {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_3V3_PCIE";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio_aon TEGRA234_AON_GPIO(AA, 5) GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	serial {
+		status = "okay";
+	};
+};
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
new file mode 100644
index 000000000000..3ccb17be17fb
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	compatible = "nvidia,p3768-0000";
+
+	bus@0 {
+		i2c@3160000 {
+			status = "okay";
+
+			eeprom@56 {
+				compatible = "atmel,24c02";
+				reg = <0x56>;
+
+				label = "system";
+				vcc-supply = <&vdd_1v8_sys>;
+				address-width = <8>;
+				pagesize = <8>;
+				size = <256>;
+				read-only;
+			};
+		};
+
+		padctl@3520000 {
+			pads {
+				usb2 {
+					lanes {
+						usb2-0 {
+							nvidia,function = "xusb";
+							status = "okay";
+						};
+
+						usb2-1 {
+							nvidia,function = "xusb";
+							status = "okay";
+						};
+
+						usb2-2 {
+							nvidia,function = "xusb";
+							status = "okay";
+						};
+					};
+				};
+
+				usb3 {
+					lanes {
+						usb3-0 {
+							nvidia,function = "xusb";
+							status = "okay";
+						};
+
+						usb3-1 {
+							nvidia,function = "xusb";
+							status = "okay";
+						};
+					};
+				};
+			};
+
+			ports {
+				/* recovery port */
+				usb2-0 {
+					mode = "otg";
+					vbus-supply = <&vdd_5v0_sys>;
+					status = "okay";
+					usb-role-switch;
+				};
+
+				/* hub */
+				usb2-1 {
+					mode = "host";
+					vbus-supply = <&vdd_1v1_hub>;
+					status = "okay";
+				};
+
+				/* M.2 Key-E */
+				usb2-2 {
+					mode = "host";
+					vbus-supply = <&vdd_5v0_sys>;
+					status = "okay";
+				};
+
+				/* hub */
+				usb3-0 {
+					nvidia,usb2-companion = <1>;
+					status = "okay";
+				};
+
+				/* J5 */
+				usb3-1 {
+					nvidia,usb2-companion = <0>;
+					status = "okay";
+				};
+			};
+		};
+
+		usb@3550000 {
+			status = "okay";
+
+			phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
+			       <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-1}>;
+			phy-names = "usb2-0", "usb3-1";
+		};
+
+		usb@3610000 {
+			status = "okay";
+
+			phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
+			       <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-1}>,
+			       <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-2}>,
+			       <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-0}>,
+			       <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-1}>;
+			phy-names = "usb2-0", "usb2-1", "usb2-2", "usb3-0",
+				    "usb3-1";
+		};
+	};
+
+	vdd_1v8_sys: regulator-vdd-1v8-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_1V8_SYS";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+	};
+
+	vdd_1v1_hub: regulator-vdd-1v1-hub {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_AV10_HUB";
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vdd_5v0_sys>;
+		regulator-always-on;
+	};
+};
-- 
2.39.2

Re: [PATCH 1/4] dt-bindings: tegra: Document Jetson Orin NX

[Rob Herring]

On Thu, 02 Mar 2023 10:33:50 +0100, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
> 
> The Jetson Orin NX is the latest iteration in the NX family of Jetson
> products. Document the compatible strings used for these devices.
> 
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
>  Documentation/devicetree/bindings/arm/tegra.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

Re: [PATCH 4/4] arm64: tegra: Add support for P3768+P3767

[Jon Hunter]

On 02/03/2023 09:33, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
> 
> Add support for the combination of the NVIDIA Jetson Orin NX (P3767)
> module and the P3768 carrier board.
> 
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
>   .../nvidia/tegra234-p3768-0000+p3767-0000.dts | 218 ++++++++++++++++++
>   .../boot/dts/nvidia/tegra234-p3768-0000.dtsi  | 133 +++++++++++
>   2 files changed, 351 insertions(+)
>   create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
>   create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi


Looks like we are missing a Makefile update in this patch.

Cheers
Jon

-- 
nvpublic

Re: [PATCH 4/4] arm64: tegra: Add support for P3768+P3767

[Jon Hunter]

On 02/03/2023 09:33, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
> 
> Add support for the combination of the NVIDIA Jetson Orin NX (P3767)
> module and the P3768 carrier board.
> 
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
>   .../nvidia/tegra234-p3768-0000+p3767-0000.dts | 218 ++++++++++++++++++
>   .../boot/dts/nvidia/tegra234-p3768-0000.dtsi  | 133 +++++++++++
>   2 files changed, 351 insertions(+)
>   create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
>   create mode 100644 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi

...

> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
> new file mode 100644
> index 000000000000..3ccb17be17fb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
> @@ -0,0 +1,133 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +/ {
> +	compatible = "nvidia,p3768-0000";
> +
> +	bus@0 {
> +		i2c@3160000 {
> +			status = "okay";
> +
> +			eeprom@56 {
> +				compatible = "atmel,24c02";
> +				reg = <0x56>;
> +
> +				label = "system";
> +				vcc-supply = <&vdd_1v8_sys>;
> +				address-width = <8>;
> +				pagesize = <8>;
> +				size = <256>;
> +				read-only;
> +			};
> +		};


On the board I have, this eeprom appears to be location at address 0x57 
and not 0x56. Can you confirm 0x56 works for you? If so, I wonder if 
there is a board revision issue here?

Thanks
Jon

-- 
nvpublic