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
  25 struct pci_dev;
  26 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
  27 #define pci_iounmap pci_iounmap
  28
  29 extern unsigned long isa_io_base;
  30 extern 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
  39 extern void iounmap(volatile void __iomem *addr);
  40
  41 extern 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 */