iomap.c

来自「omap3 linux 2.6 用nocc去除了冗余代码」· C语言 代码 · 共 24 行

/*
 *  linux/arch/arm/mm/iomap.c
 *
 * Map IO port and PCI memory spaces so that {read,write}[bwl] can
 * be used to access this memory.
 */
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ioport.h>

#include <asm/io.h>

void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
	return __io(port);
}
EXPORT_SYMBOL(ioport_map);

void ioport_unmap(void __iomem *addr)
{
}
EXPORT_SYMBOL(ioport_unmap);