linux-kernel - [PATCH v2 3/3] arm64: dts: rockchip: Add onboard EEPROM for Radxa E20C

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Message-ID: <20250417120118.17610-6-ziyao@disroot.org>
Date: Thu, 17 Apr 2025 12:01:19 +0000
From: Yao Zi <ziyao@...root.org>
To: Heiko Stuebner <heiko@...ech.de>,
	Andi Shyti <andi.shyti@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jonas Karlman <jonas@...boo.se>,
	Yao Zi <ziyao@...root.org>,
	Chukun Pan <amadeus@....edu.cn>
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/3] arm64: dts: rockchip: Add onboard EEPROM for Radxa E20C

Radxa E20C ships an onboard I2C EEPROM for storing production
information. Enable it in devicetree.

Signed-off-by: Yao Zi <ziyao@...root.org>
---
 arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
index 57a446b5cbd6..6e77f7753ff7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
@@ -110,6 +110,20 @@ vcc5v0_sys: regulator-5v0-vcc-sys {
 	};
 };
 
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1m0_xfer>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "belling,bl24c16a", "atmel,24c16";
+		reg = <0x50>;
+		pagesize = <16>;
+		read-only;
+		vcc-supply = <&vcc_3v3>;
+	};
+};
+
 &pinctrl {
 	gpio-keys {
 		user_key: user-key {
-- 
2.49.0