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
  16 #ifndef MAX_HWIFS
  17 #ifdef __powerpc64__
  18 #define MAX_HWIFS       10
  19 #else
  20 #define MAX_HWIFS       8
  21 #endif
  22 #endif
  23
  24 #ifndef  __powerpc64__
  25 #include <linux/config.h>
  26 #include <linux/hdreg.h>
  27 #include <linux/ioport.h>
  28 #include <asm/io.h>
  29
  30 extern void __ide_mm_insw(void __iomem *port, void *addr, u32 count);
  31 extern void __ide_mm_outsw(void __iomem *port, void *addr, u32 count);
  32 extern void __ide_mm_insl(void __iomem *port, void *addr, u32 count);
  33 extern void __ide_mm_outsl(void __iomem *port, void *addr, u32 count);
  34
  35 struct ide_machdep_calls {
  36         int         (*default_irq)(unsigned long base);
  37         unsigned long (*default_io_base)(int index);
  38         void        (*ide_init_hwif)(hw_regs_t *hw,
  39                                      unsigned long data_port,
  40                                      unsigned long ctrl_port,
  41                                      int *irq);
  42 };
  43
  44 extern struct ide_machdep_calls ppc_ide_md;
  45
  46 #undef  SUPPORT_SLOW_DATA_PORTS
  47 #define SUPPORT_SLOW_DATA_PORTS 0
  48
  49 #define IDE_ARCH_OBSOLETE_DEFAULTS
  50
  51 static __inline__ int ide_default_irq(unsigned long base)
  52 {
  53         if (ppc_ide_md.default_irq)
  54                 return ppc_ide_md.default_irq(base);
  55         return 0;
  56 }
  57
  58 static __inline__ unsigned long ide_default_io_base(int index)
  59 {
  60         if (ppc_ide_md.default_io_base)
  61                 return ppc_ide_md.default_io_base(index);
  62         return 0;
  63 }
  64
  65 #ifdef CONFIG_PCI
  66 #define ide_init_default_irq(base)      (0)
  67 #else
  68 #define ide_init_default_irq(base)      ide_default_irq(base)
  69 #endif
  70
  71 #if (defined CONFIG_APUS || defined CONFIG_BLK_DEV_MPC8xx_IDE )
  72 #define IDE_ARCH_ACK_INTR  1
  73 #define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1)
  74 #endif
  75
  76 #endif /* __powerpc64__ */
  77
  78 #define IDE_ARCH_OBSOLETE_INIT
  79 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
  80
  81 #endif /* __KERNEL__ */
  82
  83 #endif /* _ASM_POWERPC_IDE_H */