arch/microblaze/include/asm/io.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
   4  * Copyright (C) 2007-2009 PetaLogix
   5  * Copyright (C) 2006 Atmark Techno, Inc.
   6  */
   7
   8 #ifndef _ASM_MICROBLAZE_IO_H
   9 #define _ASM_MICROBLAZE_IO_H
  10
  11 #include <asm/byteorder.h>
  12 #include <asm/page.h>
  13 #include <linux/types.h>
  14 #include <linux/mm.h>          /* Get struct page {...} */
  15
  16 #ifndef CONFIG_PCI
  17 #define _IO_BASE        0
  18 #define _ISA_MEM_BASE   0
  19 #else
  20 #define _IO_BASE        isa_io_base
  21 #define _ISA_MEM_BASE   isa_mem_base
  22 struct pci_dev;
  23 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
  24 #define pci_iounmap pci_iounmap
  25
  26 extern unsigned long isa_io_base;
  27 extern resource_size_t isa_mem_base;
  28 #endif
  29
  30 #define PCI_IOBASE      ((void __iomem *)_IO_BASE)
  31 #define IO_SPACE_LIMIT (0xFFFFFFFF)
  32
  33 extern void iounmap(volatile void __iomem *addr);
  34
  35 extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
  36
  37 /* Big Endian */
  38 #define out_be32(a, v) __raw_writel((v), (void __iomem __force *)(a))
  39 #define out_be16(a, v) __raw_writew((v), (a))
  40
  41 #define in_be32(a) __raw_readl((const void __iomem __force *)(a))
  42 #define in_be16(a) __raw_readw(a)
  43
  44 #define writel_be(v, a) out_be32((__force unsigned *)a, v)
  45 #define readl_be(a)     in_be32((__force unsigned *)a)
  46
  47 /* Little endian */
  48 #define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a))
  49 #define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
  50
  51 #define in_le32(a) __le32_to_cpu(__raw_readl(a))
  52 #define in_le16(a) __le16_to_cpu(__raw_readw(a))
  53
  54 /* Byte ops */
  55 #define out_8(a, v) __raw_writeb((v), (a))
  56 #define in_8(a) __raw_readb(a)
  57
  58 #include <asm-generic/io.h>
  59
  60 #endif /* _ASM_MICROBLAZE_IO_H */