LXR linux/arch/microblaze/include/asm/io.h

   1/*
   2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
   3 * Copyright (C) 2007-2009 PetaLogix
   4 * Copyright (C) 2006 Atmark Techno, Inc.
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License. See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 */
  10
  11#ifndef _ASM_MICROBLAZE_IO_H
  12#define _ASM_MICROBLAZE_IO_H
  13
  14#include <asm/byteorder.h>
  15#include <asm/page.h>
  16#include <linux/types.h>
  17#include <linux/mm.h>          /* Get struct page {...} */
  18
  19#ifndef CONFIG_PCI
  20#define _IO_BASE        0
  21#define _ISA_MEM_BASE   0
  22#else
  23#define _IO_BASE        isa_io_base
  24#define _ISA_MEM_BASE   isa_mem_base
  25struct pci_dev;
  26extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
  27#define pci_iounmap pci_iounmap
  28
  29extern unsigned long isa_io_base;
  30extern resource_size_t isa_mem_base;
  31#endif
  32
  33#define PCI_IOBASE      ((void __iomem *)_IO_BASE)
  34#define IO_SPACE_LIMIT (0xFFFFFFFF)
  35
  36#ifdef CONFIG_MMU
  37#define page_to_bus(page)       (page_to_phys(page))
  38
  39extern void iounmap(volatile void __iomem *addr);
  40
  41extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
  42#define ioremap_nocache(addr, size)             ioremap((addr), (size))
  43#define ioremap_fullcache(addr, size)           ioremap((addr), (size))
  44#define ioremap_wc(addr, size)                  ioremap((addr), (size))
  45#define ioremap_wt(addr, size)                  ioremap((addr), (size))
  46
  47#endif /* CONFIG_MMU */
  48
  49/* Big Endian */
  50#define out_be32(a, v) __raw_writel((v), (void __iomem __force *)(a))
  51#define out_be16(a, v) __raw_writew((v), (a))
  52
  53#define in_be32(a) __raw_readl((const void __iomem __force *)(a))
  54#define in_be16(a) __raw_readw(a)
  55
  56#define writel_be(v, a) out_be32((__force unsigned *)a, v)
  57#define readl_be(a)     in_be32((__force unsigned *)a)
  58
  59/* Little endian */
  60#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a))
  61#define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
  62
  63#define in_le32(a) __le32_to_cpu(__raw_readl(a))
  64#define in_le16(a) __le16_to_cpu(__raw_readw(a))
  65
  66/* Byte ops */
  67#define out_8(a, v) __raw_writeb((v), (a))
  68#define in_8(a) __raw_readb(a)
  69
  70#include <asm-generic/io.h>
  71
  72#endif /* _ASM_MICROBLAZE_IO_H */
  73