board/MAI/AmigaOneG3SE/macros.h

   1
   2 #ifndef _MACROS_H
   3 #define _MACROS_H
   4
   5         /*
   6         ** Load a long integer into a register
   7         */
   8         .macro liw reg, value
   9                 lis \reg, \value@h
  10                 ori \reg, \reg, \value@l
  11         .endm
  12
  13
  14         /*
  15         ** Generate config_addr request
  16         ** This macro expects the values in registers:
  17         ** r3 - bus
  18         ** r4 - devfn
  19         ** r5 - offset
  20         */
  21         .macro config_addr
  22                 rlwinm  r9, r5, 24, 0, 6
  23                 rlwinm  r8, r4, 16, 0, 31
  24                 rlwinm  r7, r3, 8, 0, 31
  25                 or      r9, r8, r9
  26                 or      r9, r7, r9
  27                 ori     r9, r9, 0x80
  28                 liw     r10, 0xfec00cf8
  29                 stw     r9, 0(r10)
  30                 eieio
  31                 sync
  32         .endm
  33
  34
  35         /*
  36         ** Generate config_data address
  37         */
  38         .macro config_data mask
  39                 andi.   r9, r5, \mask
  40                 addi    r9, r9, 0xcfc
  41                 oris    r9, r9, 0xfee0
  42         .endm
  43
  44
  45         /*
  46         ** Write a byte value to an output port
  47         */
  48         .macro outb port, value
  49                 lis     r2, 0xfe00
  50                 li      r0, \value
  51                 stb     r0, \port(r2)
  52         .endm
  53
  54
  55         /*
  56         ** Write a register byte value to an output port
  57         */
  58         .macro outbr port, value
  59                 lis     r2, 0xfe00
  60                 stb     \value, \port(r2)
  61         .endm
  62
  63
  64         /*
  65         ** Read a byte value from a port into a specified register
  66         */
  67         .macro inb reg, port
  68                 lis     r2, 0xfe00
  69                 lbz     \reg, \port(r2)
  70         .endm
  71
  72
  73         /*
  74         ** Write a byte to the SuperIO config area
  75         */
  76         .macro siowb offset, value
  77                 li      r3, 0
  78                 li      r4, (7<<3)
  79                 li      r5, \offset
  80                 li      r6, \value
  81                 bl      pci_write_cfg_byte
  82         .endm
  83
  84 #endif