linux-kernel - [PATCH 2/3] arm64: dts: rockchip: mark eeprom as read-only for Radxa E52C

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Message-Id: <20250810100020.445053-2-amadeus@jmu.edu.cn>
Date: Sun, 10 Aug 2025 18:00:19 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: Heiko Stuebner <heiko@...ech.de>
Cc: Chukun Pan <amadeus@....edu.cn>,
	FUKAUMI Naoki <naoki@...xa.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH 2/3] arm64: dts: rockchip: mark eeprom as read-only for Radxa E52C

The eeprom on the Radxa E52C SBC contains manufacturer data
such as the mac address, so it should be marked as read-only.

Fixes: 9be4171219b6 ("arm64: dts: rockchip: Add Radxa E52C")
Signed-off-by: Chukun Pan <amadeus@....edu.cn>
---
 arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
index 3b519be6e1ea..fe48a0942a57 100644
--- a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
@@ -254,6 +254,7 @@ eeprom@50 {
 		compatible = "belling,bl24c16a", "atmel,24c16";
 		reg = <0x50>;
 		pagesize = <16>;
+		read-only;
 		vcc-supply = <&vcc_3v3_pmu>;
 	};
 };
-- 
2.25.1