arch/blackfin/mach-bf533/include/mach/fio_flag.h

   1 /*
   2  * Copyright 2005-2008 Analog Devices Inc.
   3  *
   4  * Licensed under the GPL-2 or later
   5  */
   6
   7 #ifndef _MACH_FIO_FLAG_H
   8 #define _MACH_FIO_FLAG_H
   9
  10 #include <asm/blackfin.h>
  11 #include <asm/irqflags.h>
  12
  13 #if ANOMALY_05000311
  14 #define BFIN_WRITE_FIO_FLAG(name) \
  15 static inline void bfin_write_FIO_FLAG_##name(unsigned short val) \
  16 { \
  17         unsigned long flags; \
  18         flags = hard_local_irq_save(); \
  19         bfin_write16(FIO_FLAG_##name, val); \
  20         bfin_read_CHIPID(); \
  21         hard_local_irq_restore(flags); \
  22 }
  23 BFIN_WRITE_FIO_FLAG(D)
  24 BFIN_WRITE_FIO_FLAG(C)
  25 BFIN_WRITE_FIO_FLAG(S)
  26 BFIN_WRITE_FIO_FLAG(T)
  27
  28 #define BFIN_READ_FIO_FLAG(name) \
  29 static inline u16 bfin_read_FIO_FLAG_##name(void) \
  30 { \
  31         unsigned long flags; \
  32         u16 ret; \
  33         flags = hard_local_irq_save(); \
  34         ret = bfin_read16(FIO_FLAG_##name); \
  35         bfin_read_CHIPID(); \
  36         hard_local_irq_restore(flags); \
  37         return ret; \
  38 }
  39 BFIN_READ_FIO_FLAG(D)
  40 BFIN_READ_FIO_FLAG(C)
  41 BFIN_READ_FIO_FLAG(S)
  42 BFIN_READ_FIO_FLAG(T)
  43
  44 #else
  45 #define bfin_write_FIO_FLAG_D(val)           bfin_write16(FIO_FLAG_D, val)
  46 #define bfin_write_FIO_FLAG_C(val)           bfin_write16(FIO_FLAG_C, val)
  47 #define bfin_write_FIO_FLAG_S(val)           bfin_write16(FIO_FLAG_S, val)
  48 #define bfin_write_FIO_FLAG_T(val)           bfin_write16(FIO_FLAG_T, val)
  49 #define bfin_read_FIO_FLAG_T()               bfin_read16(FIO_FLAG_T)
  50 #define bfin_read_FIO_FLAG_C()               bfin_read16(FIO_FLAG_C)
  51 #define bfin_read_FIO_FLAG_S()               bfin_read16(FIO_FLAG_S)
  52 #define bfin_read_FIO_FLAG_D()               bfin_read16(FIO_FLAG_D)
  53 #endif
  54
  55 #endif /* _MACH_FIO_FLAG_H */