blob: 1611bd03f52892ca846f56f4adc8801e4c85e362 [file] [log] [blame]
Russell Kinga09e64f2008-08-05 16:14:15 +01001/*
2 * arch/arm/mach-at91/include/mach/io.h
3 *
4 * Copyright (C) 2003 SAN People
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef __ASM_ARCH_IO_H
22#define __ASM_ARCH_IO_H
23
24#define IO_SPACE_LIMIT 0xFFFFFFFF
25
26#define __io(a) ((void __iomem *)(a))
27#define __mem_pci(a) (a)
28
29
30#ifndef __ASSEMBLY__
31
32static inline unsigned int at91_sys_read(unsigned int reg_offset)
33{
34 void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS;
35
36 return __raw_readl(addr + reg_offset);
37}
38
39static inline void at91_sys_write(unsigned int reg_offset, unsigned long value)
40{
41 void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS;
42
43 __raw_writel(value, addr + reg_offset);
44}
45
46#endif
47
48#endif