forked from Minki/linux
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
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/*
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* Defitions for the address spaces of the AVR32 CPUs. Heavily based on
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* include/asm-sh/addrspace.h
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*
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* Copyright (C) 2004-2006 Atmel Corporation
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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_AVR32_ADDRSPACE_H
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#define __ASM_AVR32_ADDRSPACE_H
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#ifdef CONFIG_MMU
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/* Memory segments when segmentation is enabled */
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#define P0SEG 0x00000000
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#define P1SEG 0x80000000
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#define P2SEG 0xa0000000
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#define P3SEG 0xc0000000
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#define P4SEG 0xe0000000
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/* Returns the privileged segment base of a given address */
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#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
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/* Returns the physical address of a PnSEG (n=1,2) address */
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#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
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/*
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* Map an address to a certain privileged segment
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*/
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#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
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| P1SEG))
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#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
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| P2SEG))
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#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
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| P3SEG))
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#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
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| P4SEG))
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#endif /* CONFIG_MMU */
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#endif /* __ASM_AVR32_ADDRSPACE_H */
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