arch/mips/include/asm/dec/ioasic.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *      include/asm-mips/dec/ioasic.h
   4  *
   5  *      DEC I/O ASIC access operations.
   6  *
   7  *      Copyright (C) 2000, 2002, 2003  Maciej W. Rozycki
   8  */
   9
  10 #ifndef __ASM_DEC_IOASIC_H
  11 #define __ASM_DEC_IOASIC_H
  12
  13 #include <linux/spinlock.h>
  14 #include <linux/types.h>
  15
  16 extern spinlock_t ioasic_ssr_lock;
  17
  18 extern volatile u32 *ioasic_base;
  19
  20 static inline void ioasic_write(unsigned int reg, u32 v)
  21 {
  22         ioasic_base[reg / 4] = v;
  23 }
  24
  25 static inline u32 ioasic_read(unsigned int reg)
  26 {
  27         return ioasic_base[reg / 4];
  28 }
  29
  30 extern void init_ioasic_irqs(int base);
  31
  32 extern int dec_ioasic_clocksource_init(void);
  33
  34 #endif /* __ASM_DEC_IOASIC_H */