LXR linux/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
  22struct pci_dev;
  23extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
  24#define pci_iounmap pci_iounmap
  25
  26extern unsigned long isa_io_base;
  27extern 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#ifdef CONFIG_MMU
  34#define page_to_bus(page)       (page_to_phys(page))
  35
  36extern void iounmap(volatile void __iomem *addr);
  37
  38extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
  39
  40#endif /* CONFIG_MMU */
  41
  42/* Big Endian */
  43#define out_be32(a, v) __raw_writel((v), (void __iomem __force *)(a))
  44#define out_be16(a, v) __raw_writew((v), (a))
  45
  46#define in_be32(a) __raw_readl((const void __iomem __force *)(a))
  47#define in_be16(a) __raw_readw(a)
  48
  49#define writel_be(v, a) out_be32((__force unsigned *)a, v)
  50#define readl_be(a)     in_be32((__force unsigned *)a)
  51
  52/* Little endian */
  53#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a))
  54#define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
  55
  56#define in_le32(a) __le32_to_cpu(__raw_readl(a))
  57#define in_le16(a) __le16_to_cpu(__raw_readw(a))
  58
  59/* Byte ops */
  60#define out_8(a, v) __raw_writeb((v), (a))
  61#define in_8(a) __raw_readb(a)
  62
  63#include <asm-generic/io.h>
  64
  65#endif /* _ASM_MICROBLAZE_IO_H */
  66