include/asm-powerpc/ide.h

   1 /*
   2  *  Copyright (C) 1994-1996 Linus Torvalds & authors
   3  *
   4  *  This file contains the powerpc architecture specific IDE code.
   5  */
   6 #ifndef _ASM_POWERPC_IDE_H
   7 #define _ASM_POWERPC_IDE_H
   8
   9 #ifdef __KERNEL__
  10
  11 #ifndef __powerpc64__
  12 #include <linux/sched.h>
  13 #include <asm/mpc8xx.h>
  14 #endif
  15 #include <asm/io.h>
  16
  17 #ifndef MAX_HWIFS
  18 #ifdef __powerpc64__
  19 #define MAX_HWIFS       10
  20 #else
  21 #define MAX_HWIFS       8
  22 #endif
  23 #endif
  24
  25 #define __ide_mm_insw(p, a, c)  readsw((void __iomem *)(p), (a), (c))
  26 #define __ide_mm_insl(p, a, c)  readsl((void __iomem *)(p), (a), (c))
  27 #define __ide_mm_outsw(p, a, c) writesw((void __iomem *)(p), (a), (c))
  28 #define __ide_mm_outsl(p, a, c) writesl((void __iomem *)(p), (a), (c))
  29
  30 #ifndef  __powerpc64__
  31 #include <linux/hdreg.h>
  32 #include <linux/ioport.h>
  33
  34 struct ide_machdep_calls {
  35         int         (*default_irq)(unsigned long base);
  36         unsigned long (*default_io_base)(int index);
  37         void        (*ide_init_hwif)(hw_regs_t *hw,
  38                                      unsigned long data_port,
  39                                      unsigned long ctrl_port,
  40                                      int *irq);
  41 };
  42
  43 extern struct ide_machdep_calls ppc_ide_md;
  44
  45 #define IDE_ARCH_OBSOLETE_DEFAULTS
  46
  47 static __inline__ int ide_default_irq(unsigned long base)
  48 {
  49         if (ppc_ide_md.default_irq)
  50                 return ppc_ide_md.default_irq(base);
  51         return 0;
  52 }
  53
  54 static __inline__ unsigned long ide_default_io_base(int index)
  55 {
  56         if (ppc_ide_md.default_io_base)
  57                 return ppc_ide_md.default_io_base(index);
  58         return 0;
  59 }
  60
  61 #ifdef CONFIG_PCI
  62 #define ide_init_default_irq(base)      (0)
  63 #else
  64 #define ide_init_default_irq(base)      ide_default_irq(base)
  65 #endif
  66
  67 #ifdef CONFIG_BLK_DEV_MPC8xx_IDE
  68 #define IDE_ARCH_ACK_INTR  1
  69 #define ide_ack_intr(hwif) ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
  70 #endif
  71
  72 #endif /* __powerpc64__ */
  73
  74 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
  75
  76 #endif /* __KERNEL__ */
  77
  78 #endif /* _ASM_POWERPC_IDE_H */