1/* 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) __typesafe_io(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 49