78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* Copyright (C) 2006 Atmel Corporation
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ASM_AVR32_IO_H
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#define __ASM_AVR32_IO_H
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#include <asm/types.h>
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#ifdef __KERNEL__
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/*
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* Generic IO read/write. These perform native-endian accesses. Note
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* that some architectures will want to re-define __raw_{read,write}w.
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*/
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extern void __raw_writesb(unsigned int addr, const void *data, int bytelen);
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extern void __raw_writesw(unsigned int addr, const void *data, int wordlen);
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extern void __raw_writesl(unsigned int addr, const void *data, int longlen);
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extern void __raw_readsb(unsigned int addr, void *data, int bytelen);
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extern void __raw_readsw(unsigned int addr, void *data, int wordlen);
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extern void __raw_readsl(unsigned int addr, void *data, int longlen);
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#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v))
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#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
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#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
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#define __raw_readb(a) (*(volatile unsigned char *)(a))
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#define __raw_readw(a) (*(volatile unsigned short *)(a))
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#define __raw_readl(a) (*(volatile unsigned int *)(a))
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/* As long as I/O is only performed in P4 (or possibly P3), we're safe */
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#define writeb(v,a) __raw_writeb(v,a)
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#define writew(v,a) __raw_writew(v,a)
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#define writel(v,a) __raw_writel(v,a)
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#define readb(a) __raw_readb(a)
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#define readw(a) __raw_readw(a)
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#define readl(a) __raw_readl(a)
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/*
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* Bad read/write accesses...
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*/
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extern void __readwrite_bug(const char *fn);
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#define IO_SPACE_LIMIT 0xffffffff
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/*
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* All I/O is memory mapped, so these macros doesn't make very much sense
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*/
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#define outb(v,p) __raw_writeb(v, p)
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#define outw(v,p) __raw_writew(cpu_to_le16(v),p)
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#define outl(v,p) __raw_writel(cpu_to_le32(v),p)
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#define inb(p) ({ unsigned int __v = __raw_readb(p); __v; })
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#define inw(p) ({ unsigned int __v = __le16_to_cpu(__raw_readw(p)); __v; })
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#define inl(p) ({ unsigned int __v = __le32_to_cpu(__raw_readl(p)); __v; })
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#include <asm/arch/addrspace.h>
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/* Provides virt_to_phys, phys_to_virt, cached, uncached, map_physmem */
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#endif /* __KERNEL__ */
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static inline void sync(void)
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{
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}
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/*
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* Take down a mapping set up by map_physmem().
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*/
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static inline void unmap_physmem(void *vaddr, unsigned long len)
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{
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}
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#endif /* __ASM_AVR32_IO_H */
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