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
40