[PATCH v2 1/1] arm64: dts: allwinner: NanoPi R1S H5: Add generic compatible string for I2C EEPROM

Chukun Pan amadeus at jmu.edu.cn
Sun Oct 10 06:50:17 PDT 2021


The 'microchip,24c02' compatible does not match the at24 driver, so
add this generic fallback to the device node compatible string to
make the device to match the driver using the OF device ID table.

Also set this eeprom to read-only mode because it stores the mac
address of the onboard usb network card.

Signed-off-by: Chukun Pan <amadeus at jmu.edu.cn>
---
 .../arm64/boot/dts/allwinner/sun50i-h5-nanopi-r1s-h5.dts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-r1s-h5.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-r1s-h5.dts
index 55bcdf8d1a07..55b369534a08 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-r1s-h5.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-r1s-h5.dts
@@ -142,9 +142,16 @@
 	status = "okay";
 
 	eeprom at 51 {
-		compatible = "microchip,24c02";
+		compatible = "microchip,24c02", "atmel,24c02";
 		reg = <0x51>;
 		pagesize = <16>;
+		read-only;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		eth_mac1: mac-address at fa {
+			reg = <0xfa 0x06>;
+		};
 	};
 };
 
-- 
2.17.1




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