add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/openrisc/boot/dts/simple_smp.dts
..
..
@@ -60,4 +60,10 @@
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 		clock-frequency = <20000000>;
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 	};
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+	enet0: ethoc@92000000 {
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+		compatible = "opencores,ethoc";
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+		reg = <0x92000000 0x800>;
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+		interrupts = <4>;
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+		big-endian;
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+	};
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 };