4fde87cb13
1. define and enable CONFIG_GENERIC_IOMAP 2. define unicore32-specific PCI_IOBASE for asm-generic/io.h 3. define HAVE_ARCH_PIO_SIZE and unicore32-specific PIO_* macros 4. remove all unicore32-specific iomap functions Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-and-Acked-by: Arnd Bergmann <arnd@arndb.de>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* linux/arch/unicore32/include/asm/io.h
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*
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* Code specific to PKUnity SoC and UniCore ISA
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*
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* Copyright (C) 2001-2010 GUAN Xue-tao
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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 __UNICORE_IO_H__
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#define __UNICORE_IO_H__
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#ifdef __KERNEL__
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#include <asm/byteorder.h>
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#include <asm/memory.h>
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#include <asm/system.h>
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#define PCI_IOBASE io_p2v(PKUNITY_PCILIO_BASE)
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#include <asm-generic/io.h>
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/*
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* __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address.
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*/
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extern void __iomem *__uc32_ioremap(unsigned long, size_t);
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extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t);
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extern void __uc32_iounmap(volatile void __iomem *addr);
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/*
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* ioremap and friends.
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*
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* ioremap takes a PCI memory address, as specified in
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* Documentation/IO-mapping.txt.
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*
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*/
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#define ioremap(cookie, size) __uc32_ioremap(cookie, size)
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#define ioremap_cached(cookie, size) __uc32_ioremap_cached(cookie, size)
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#define iounmap(cookie) __uc32_iounmap(cookie)
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/*
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* Convert a physical pointer to a virtual kernel pointer for /dev/mem
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* access
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*/
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#undef xlate_dev_mem_ptr
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#define xlate_dev_mem_ptr(p) __va(p)
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#define HAVE_ARCH_PIO_SIZE
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#define PIO_OFFSET (unsigned int)(PCI_IOBASE)
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#define PIO_MASK (unsigned int)(IO_SPACE_LIMIT)
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#define PIO_RESERVED (PIO_OFFSET + PIO_MASK + 1)
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#endif /* __KERNEL__ */
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#endif /* __UNICORE_IO_H__ */
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