io.h
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上传日期:2013-04-10
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- /*
- * linux/include/asm-arm/arch-clps711x/io.h
- *
- * Copyright (C) 1999 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #ifndef __ASM_ARM_ARCH_IO_H
- #define __ASM_ARM_ARCH_IO_H
- #define IO_SPACE_LIMIT 0xffffffff
- #define __io(a) ((a))
- #define __mem_pci(a) ((unsigned long)(a))
- #define __mem_isa(a) ((unsigned long)(a))
- /*
- * Generic virtual read/write
- */
- #define __arch_getw(a) (*(volatile unsigned short *)(a))
- #define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v))
- /*
- * ioremap support - validate a PCI memory address, and convert it
- * to a physical address for the page tables.
- */
- #define iomem_valid_addr(iomem,size) (1)
- #define iomem_to_phys(iomem) (iomem)
- /*
- * We don't support ins[lb]/outs[lb]. Make them fault.
- */
- #define __raw_readsb(p,d,l) do { *(int *)0 = 0; } while (0)
- #define __raw_readsl(p,d,l) do { *(int *)0 = 0; } while (0)
- #define __raw_writesb(p,d,l) do { *(int *)0 = 0; } while (0)
- #define __raw_writesl(p,d,l) do { *(int *)0 = 0; } while (0)
- #endif