linux-kernel - [PATCH 2/2] arm64: dts: rockchip: add product-data eeproms to QNAP TS433

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Message-Id: <20240810211438.286441-3-heiko@sntech.de>
Date: Sat, 10 Aug 2024 23:14:38 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: brgl@...ev.pl
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	heiko@...ech.de,
	ukleinek@...ian.org,
	linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org
Subject: [PATCH 2/2] arm64: dts: rockchip: add product-data eeproms to QNAP TS433

The device contains two i2c-connected eeproms holding some product-
specific values. One sitting on the mainboard and one on the statically
connected backplane.

While the eeprom chips themself have a size of 512 byte, the eeprom data
only uses 256 byte each, probably to stay compatible with other models.

Signed-off-by: Heiko Stuebner <heiko@...ech.de>
---
 .../boot/dts/rockchip/rk3568-qnap-ts433.dts   | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
index 110c323786848..7bd32d230ad2f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
@@ -458,6 +458,26 @@ rtc_rv8263: rtc@51 {
 		reg = <0x51>;
 		wakeup-source;
 	};
+
+	/* eeprom for vital-product-data on the mainboard */
+	eeprom@54 {
+		compatible = "giantec,gt24c04a", "atmel,24c04";
+		reg = <0x54>;
+		label = "VPD_MB";
+		num-addresses = <2>;
+		pagesize = <16>;
+		read-only;
+	};
+
+	/* eeprom for vital-product-data on the backplane */
+	eeprom@56 {
+		compatible = "giantec,gt24c04a", "atmel,24c04";
+		reg = <0x56>;
+		label = "VPD_BP";
+		num-addresses = <2>;
+		pagesize = <16>;
+		read-only;
+	};
 };
 
 &mdio0 {
-- 
2.39.2