add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/mips/include/asm/dec/prom.h
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@@ -1,14 +1,10 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  *	include/asm-mips/dec/prom.h
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  *
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  *	DECstation PROM interface.
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  *
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  *	Copyright (C) 2002  Maciej W. Rozycki
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- *
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- *	This program is free software; you can redistribute it and/or
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- *	modify it under the terms of the GNU General Public License
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- *	as published by the Free Software Foundation; either version
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- *	2 of the License, or (at your option) any later version.
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  *
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  *	Based on arch/mips/dec/prom/prom.h by the Anonymous.
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  */
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@@ -47,16 +43,11 @@
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  */
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 #define REX_PROM_MAGIC		0x30464354
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-#ifdef CONFIG_64BIT
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-
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-#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.  */
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-
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-#else /* !CONFIG_64BIT */
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-
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-#define prom_is_rex(magic)	((magic) == REX_PROM_MAGIC)
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-
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-#endif /* !CONFIG_64BIT */
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-
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+/* KN04 and KN05 are REX PROMs, so only do the check for R3k systems.  */
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+static inline bool prom_is_rex(u32 magic)
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+{
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+	return !IS_ENABLED(CONFIG_CPU_R3000) || magic == REX_PROM_MAGIC;
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+}
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 /*
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  * 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's and