riscv: dts: spacemit: add 24c04 eeprom on Milk-V Jupiter

The Milk-V Jupiter board includes a 24c04 eeprom on the i2c2 bus. The
eeprom contains an ONIE TLV table, which on the board I tested only
provides a product-name entry. Expose it via an onie,tlv-layout nvmem
layout.

The eeprom is marked as read-only since its contents are not supposed to
be modified.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260326183745.1370642-3-aurelien@aurel32.net
Signed-off-by: Yixun Lan <dlan@kernel.org>

Author: aurel32

arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts

@@ -108,6 +108,28 @@
 	status = "okay";
 };
 
+&i2c2 {
+	pinctrl-0 = <&i2c2_0_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c04";
+		reg = <0x50>;
+		vcc-supply = <&buck3_1v8>; /* EEPROM_VCC18 */
+		pagesize = <16>;
+		read-only;
+		size = <512>;
+
+		nvmem-layout {
+			compatible = "onie,tlv-layout";
+
+			product-name {
+			};
+		};
+	};
+};
+
 &i2c8 {
 	pinctrl-0 = <&i2c8_cfg>;
 	pinctrl-names = "default";