include/asm-avr32/arch-at32ap/io.h

   1 #ifndef __ASM_AVR32_ARCH_AT32AP_IO_H
   2 #define __ASM_AVR32_ARCH_AT32AP_IO_H
   3
   4 /* For "bizarre" halfword swapping */
   5 #include <linux/byteorder/swabb.h>
   6
   7 #if defined(CONFIG_AP700X_32_BIT_SMC)
   8 # define __swizzle_addr_b(addr) (addr ^ 3UL)
   9 # define __swizzle_addr_w(addr) (addr ^ 2UL)
  10 # define __swizzle_addr_l(addr) (addr)
  11 # define ioswabb(a, x)          (x)
  12 # define ioswabw(a, x)          (x)
  13 # define ioswabl(a, x)          (x)
  14 # define __mem_ioswabb(a, x)    (x)
  15 # define __mem_ioswabw(a, x)    swab16(x)
  16 # define __mem_ioswabl(a, x)    swab32(x)
  17 #elif defined(CONFIG_AP700X_16_BIT_SMC)
  18 # define __swizzle_addr_b(addr) (addr ^ 1UL)
  19 # define __swizzle_addr_w(addr) (addr)
  20 # define __swizzle_addr_l(addr) (addr)
  21 # define ioswabb(a, x)          (x)
  22 # define ioswabw(a, x)          (x)
  23 # define ioswabl(a, x)          swahw32(x)
  24 # define __mem_ioswabb(a, x)    (x)
  25 # define __mem_ioswabw(a, x)    swab16(x)
  26 # define __mem_ioswabl(a, x)    swahb32(x)
  27 #else
  28 # define __swizzle_addr_b(addr) (addr)
  29 # define __swizzle_addr_w(addr) (addr)
  30 # define __swizzle_addr_l(addr) (addr)
  31 # define ioswabb(a, x)          (x)
  32 # define ioswabw(a, x)          swab16(x)
  33 # define ioswabl(a, x)          swab32(x)
  34 # define __mem_ioswabb(a, x)    (x)
  35 # define __mem_ioswabw(a, x)    (x)
  36 # define __mem_ioswabl(a, x)    (x)
  37 #endif
  38
  39 #endif /* __ASM_AVR32_ARCH_AT32AP_IO_H */