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

   1 /*
   2  * arch/arm/mach-kirkwood/include/mach/io.h
   3  *
   4  * This file is licensed under the terms of the GNU General Public
   5  * License version 2.  This program is licensed "as is" without any
   6  * warranty of any kind, whether express or implied.
   7  */
   8
   9 #ifndef __ASM_ARCH_IO_H
  10 #define __ASM_ARCH_IO_H
  11
  12 #include "kirkwood.h"
  13
  14 #define IO_SPACE_LIMIT          0xffffffff
  15
  16 static inline void __iomem *__io(unsigned long addr)
  17 {
  18         return (void __iomem *)((addr - KIRKWOOD_PCIE_IO_BUS_BASE)
  19                                         + KIRKWOOD_PCIE_IO_VIRT_BASE);
  20 }
  21
  22 static inline void __iomem *
  23 __arch_ioremap(unsigned long paddr, size_t size, unsigned int mtype)
  24 {
  25         void __iomem *retval;
  26         unsigned long offs = paddr - KIRKWOOD_REGS_PHYS_BASE;
  27         if (mtype == MT_DEVICE && size && offs < KIRKWOOD_REGS_SIZE &&
  28             size <= KIRKWOOD_REGS_SIZE && offs + size <= KIRKWOOD_REGS_SIZE) {
  29                 retval = (void __iomem *)KIRKWOOD_REGS_VIRT_BASE + offs;
  30         } else {
  31                 retval = __arm_ioremap(paddr, size, mtype);
  32         }
  33
  34         return retval;
  35 }
  36
  37 static inline void
  38 __arch_iounmap(void __iomem *addr)
  39 {
  40         if (addr < (void __iomem *)KIRKWOOD_REGS_VIRT_BASE ||
  41             addr >= (void __iomem *)(KIRKWOOD_REGS_VIRT_BASE + KIRKWOOD_REGS_SIZE))
  42                 __iounmap(addr);
  43 }
  44
  45 #define __arch_ioremap(p, s, m) __arch_ioremap(p, s, m)
  46 #define __arch_iounmap(a)       __arch_iounmap(a)
  47 #define __io(a)                 __io(a)
  48 #define __mem_pci(a)            (a)
  49
  50
  51 #endif