linux-kernel - [PATCH v2] ARM: dts: aspeed: anacapa: Add retimer EEPROMs

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Message-Id: <20260209-b4-anacapa-dts-fix-v2-1-fe446a7038bf@amd.com>
Date: Mon, 09 Feb 2026 15:58:53 +0800
From: Dirk Chen via B4 Relay <devnull+dirkchen.amd.com@...nel.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>, 
 Andrew Jeffery <andrew@...econstruct.com.au>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org, 
 Dirk Chen <dirkchen@....com>
Subject: [PATCH v2] ARM: dts: aspeed: anacapa: Add retimer EEPROMs

From: Dirk Chen <dirkchen@....com>

The Anacapa board features Atmel 24C2048 EEPROMs on i2c0 and i2c1, which
are used to store retimer configurations. Add the corresponding device
tree nodes to support these components.

Signed-off-by: Dirk Chen <dirkchen@....com>
---
Changes in v2:
- Improved commit description to clarify that the change reflects
  actual hardware as requested by the reviewer.
- Removed mentions of other platforms to avoid confusion.
- Link to v1: https://lore.kernel.org/r/20260202-b4-anacapa-dts-fix-v1-1-20d4b0114854@amd.com
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
index 221af858cb6b..b8d248d99d7c 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
@@ -328,6 +328,12 @@ i2c0mux0ch3: i2c@3 {
 			#size-cells = <0>;
 		};
 	};
+
+	eeprom@50 {
+		compatible = "atmel,24c2048";
+		reg = <0x50>;
+		pagesize = <128>;
+	};
 };
 
 // R Bridge Board
@@ -362,6 +368,12 @@ i2c1mux0ch3: i2c@3 {
 			#size-cells = <0>;
 		};
 	};
+
+	eeprom@50 {
+		compatible = "atmel,24c2048";
+		reg = <0x50>;
+		pagesize = <128>;
+	};
 };
 
 // MB - E1.S

---
base-commit: 4c87cdd0328495759f6e9f9f4e1e53ef8032a76f
change-id: 20260202-b4-anacapa-dts-fix-207ffe9a3b0c

Best regards,
-- 
Dirk Chen <dirkchen@....com>