arch/openrisc/include/asm/io.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * OpenRISC Linux
   4  *
   5  * Linux architectural port borrowing liberally from similar works of
   6  * others.  All original copyrights apply as per the original source
   7  * declaration.
   8  *
   9  * OpenRISC implementation:
  10  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
  11  * et al.
  12  */
  13
  14 #ifndef __ASM_OPENRISC_IO_H
  15 #define __ASM_OPENRISC_IO_H
  16
  17 #include <linux/types.h>
  18 #include <asm/pgalloc.h>
  19 #include <asm/pgtable.h>
  20
  21 /*
  22  * PCI: We do not use IO ports in OpenRISC
  23  */
  24 #define IO_SPACE_LIMIT          0
  25
  26 /* OpenRISC has no port IO */
  27 #define HAVE_ARCH_PIO_SIZE      1
  28 #define PIO_RESERVED            0X0UL
  29 #define PIO_OFFSET              0
  30 #define PIO_MASK                0
  31
  32 /*
  33  * I/O memory mapping functions.
  34  */
  35 #define _PAGE_IOREMAP (pgprot_val(PAGE_KERNEL) | _PAGE_CI)
  36
  37 #include <asm-generic/io.h>
  38
  39 #endif