blob: 746853ac7d8d382a7e21c182cb8162959dcd6ead (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
* Copyright (C) 2014 Altera Corporation
* Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
* Copyright (C) 2004 Microtronix Datacom Ltd.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef _ASM_NIOS2_IO_H
#define _ASM_NIOS2_IO_H
#include <linux/types.h>
#include <asm/pgtable-bits.h>
/* PCI is not supported in nios2, set this to 0. */
#define IO_SPACE_LIMIT 0
#define readb_relaxed(addr) readb(addr)
#define readw_relaxed(addr) readw(addr)
#define readl_relaxed(addr) readl(addr)
#define writeb_relaxed(x, addr) writeb(x, addr)
#define writew_relaxed(x, addr) writew(x, addr)
#define writel_relaxed(x, addr) writel(x, addr)
void __iomem *ioremap(unsigned long physaddr, unsigned long size);
void iounmap(void __iomem *addr);
/* Pages to physical address... */
#define page_to_phys(page) virt_to_phys(page_to_virt(page))
/* Macros used for converting between virtual and physical mappings. */
#define phys_to_virt(vaddr) \
((void *)((unsigned long)(vaddr) | CONFIG_NIOS2_KERNEL_REGION_BASE))
/* Clear top 3 bits */
#define virt_to_phys(vaddr) \
((unsigned long)((unsigned long)(vaddr) & ~0xE0000000))
#include <asm-generic/io.h>
#endif /* _ASM_NIOS2_IO_H */
|
