original_kernel/arch/arm/mach-tegra/include/mach/io.h

/*
 * arch/arm/mach-tegra/include/mach/io.h
 *
 * Copyright (C) 2010 Google, Inc.
 *
 * Author:
 *	Colin Cross <ccross@google.com>
 *	Erik Gilling <konkers@google.com>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#ifndef __MACH_TEGRA_IO_H
#define __MACH_TEGRA_IO_H

#define IO_SPACE_LIMIT 0xffff

#ifndef __ASSEMBLER__

#ifdef CONFIG_TEGRA_PCI
extern void __iomem *tegra_pcie_io_base;

static inline void __iomem *__io(unsigned long addr)
{
	return tegra_pcie_io_base + (addr & IO_SPACE_LIMIT);
}
#else
static inline void __iomem *__io(unsigned long addr)
{
	return (void __iomem *)addr;
}
#endif

#define __io(a)         __io(a)

#endif

#endif