修改GPIO导出默认初始值

hc

2024-10-16 50a212ec906f7524620675f0c57357691c26c81f

 kernel/arch/arc/include/asm/mmu.h
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@@ -1,9 +1,6 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #ifndef _ASM_ARC_MMU_H
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@@ -43,6 +40,10 @@
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 #define ARC_REG_SCRATCH_DATA0	0x46c
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 #endif
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+#if defined(CONFIG_ISA_ARCV2) || !defined(CONFIG_SMP)
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+#define	ARC_USE_SCRATCH_REG
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+#endif
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+
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 /* Bits in MMU PID register */
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 #define __TLB_ENABLE		(1 << 31)
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 #define __PROG_ENABLE		(1 << 30)
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@@ -66,6 +67,8 @@
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 #if (CONFIG_ARC_MMU_VER >= 2)
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 #define TLBWriteNI  0x5		/* write JTLB without inv uTLBs */
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 #define TLBIVUTLB   0x6		/* explicitly inv uTLBs */
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+#else
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+#define TLBWriteNI  TLBWrite	/* Not present in hardware, fallback */
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 #endif
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 #if (CONFIG_ARC_MMU_VER >= 4)