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From: Thierry Reding <thierry.reding@kernel.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	 Thierry Reding <thierry.reding@kernel.org>,
	 Jonathan Hunter <jonathanh@nvidia.com>
Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
	 linux-kernel@vger.kernel.org,
	Thierry Reding <treding@nvidia.com>
Subject: [PATCH 4/5] arm64: tegra: Add NVIDIA Jetson AGX Thor system EEPROM
Date: Fri, 18 Sep 2026 11:06:56 +0200	[thread overview]
Message-ID: <20260918-tegra264-i2c-v1-4-3adac7aae717@nvidia.com> (raw)
In-Reply-To: <20260918-tegra264-i2c-v1-0-3adac7aae717@nvidia.com>

From: Thierry Reding <treding@nvidia.com>

Like most previous Jetson devices, the Jetson AGX Thor has EEPROMs used
to identify the system. Add the device tree node describing this EEPROM.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
index 86ce40e80c73..62ca7e4d227e 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
@@ -19,6 +19,20 @@ pwm@c6a0000 {
 		};
 	};
 
+	bus@8100000000 {
+		i2c@c640000 {
+			eeprom@56 {
+				compatible = "atmel,24c02";
+				reg = <0x56>;
+				label = "system";
+				address-width = <8>;
+				pagesize = <8>;
+				size = <256>;
+				read-only;
+			};
+		};
+	};
+
 	fan: pwm-fan {
 		compatible = "pwm-fan";
 		cooling-levels = <77 102 140 192 255>;

-- 
2.55.0


  parent reply	other threads:[~2026-09-18  9:07 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-18  9:06 [PATCH 0/5] arm64: tegra: Miscellaneous I2C changes on Tegra264 Thierry Reding
2026-09-18  9:06 ` [PATCH 1/5] arm64: tegra: Add missing *-cells properties for I2C controllers Thierry Reding
2026-09-18  9:06 ` [PATCH 2/5] arm64: tegra: Add I2C aliases for Tegra264 Thierry Reding
2026-09-18  9:06 ` [PATCH 3/5] arm64: tegra: Add NVIDIA Jetson AGX Thor module EEPROM Thierry Reding
2026-09-18  9:06 ` Thierry Reding [this message]
2026-09-18  9:06 ` [PATCH 5/5] arm64: tegra: Add thermal senser for Jetson AGX Thor Thierry Reding
2026-09-18 12:56   ` Thierry Reding

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