release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/plat-mxc/include/mach/io.h

   1 /*
   2  *  Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   3  */
   4
   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 version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __ASM_ARCH_MXC_IO_H__
  12 #define __ASM_ARCH_MXC_IO_H__
  13
  14 /* Allow IO space to be anywhere in the memory */
  15 #define IO_SPACE_LIMIT 0xffffffff
  16
  17 #ifdef CONFIG_ARCH_MX3
  18 #define __arch_ioremap __mx3_ioremap
  19 #define __arch_iounmap __iounmap
  20
  21 static inline void __iomem *
  22 __mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
  23 {
  24         if (mtype == MT_DEVICE) {
  25                 /* Access all peripherals below 0x80000000 as nonshared device
  26                  * but leave l2cc alone.
  27                  */
  28                 if ((phys_addr < 0x80000000) && ((phys_addr < 0x30000000) ||
  29                         (phys_addr >= 0x30000000 + SZ_1M)))
  30                         mtype = MT_DEVICE_NONSHARED;
  31         }
  32
  33         return __arm_ioremap(phys_addr, size, mtype);
  34 }
  35 #endif
  36
  37 /* io address mapping macro */
  38 #define __io(a)         __typesafe_io(a)
  39
  40 #define __mem_pci(a)    (a)
  41
  42 #endif