5924486dc0
nommu doesn't have any form of remapping support, so ioremap, etc become stubs which just return the casted address, doing nothing else. Move ioport_map(), ioport_unmap(), pci_iomap(), pci_iounmap() into a separate file which is always built. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
31 lines
625 B
C
31 lines
625 B
C
/*
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* linux/arch/arm/mm/nommu.c
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*
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* ARM uCLinux supporting functions.
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*/
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#include <linux/module.h>
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#include <asm/io.h>
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#include <asm/page.h>
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void __iomem *__ioremap_pfn(unsigned long pfn, unsigned long offset,
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size_t size, unsigned long flags)
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{
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if (pfn >= (0x100000000ULL >> PAGE_SHIFT))
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return NULL;
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return (void __iomem *) (offset + (pfn << PAGE_SHIFT));
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}
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EXPORT_SYMBOL(__ioremap_pfn);
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void __iomem *__ioremap(unsigned long phys_addr, size_t size,
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unsigned long flags)
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{
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return (void __iomem *)phys_addr;
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}
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EXPORT_SYMBOL(__ioremap);
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void __iounmap(void __iomem *addr)
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{
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}
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EXPORT_SYMBOL(__iounmap);
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