arch/sh/include/asm/romimage-macros.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ROMIMAGE_MACRO_H
   3 #define __ROMIMAGE_MACRO_H
   4
   5 /* The LIST command is used to include comments in the script */
   6 .macro  LIST comment
   7 .endm
   8
   9 /* The ED command is used to write a 32-bit word */
  10 .macro  ED, addr, data
  11         mov.l 1f, r1
  12         mov.l 2f, r0
  13         mov.l r0, @r1
  14         bra 3f
  15          nop
  16         .align 2
  17 1 :     .long \addr
  18 2 :     .long \data
  19 3 :
  20 .endm
  21
  22 /* The EW command is used to write a 16-bit word */
  23 .macro  EW, addr, data
  24         mov.l 1f, r1
  25         mov.l 2f, r0
  26         mov.w r0, @r1
  27         bra 3f
  28          nop
  29         .align 2
  30 1 :     .long \addr
  31 2 :     .long \data
  32 3 :
  33 .endm
  34
  35 /* The EB command is used to write an 8-bit word */
  36 .macro  EB, addr, data
  37         mov.l 1f, r1
  38         mov.l 2f, r0
  39         mov.b r0, @r1
  40         bra 3f
  41          nop
  42         .align 2
  43 1 :     .long \addr
  44 2 :     .long \data
  45 3 :
  46 .endm
  47
  48 /* The WAIT command is used to delay the execution */
  49 .macro  WAIT, time
  50         mov.l  2f, r3
  51 1 :
  52         nop
  53         tst     r3, r3
  54         bf/s    1b
  55         dt      r3
  56         bra     3f
  57          nop
  58         .align 2
  59 2 :     .long \time * 100
  60 3 :
  61 .endm
  62
  63 /* The DD command is used to read a 32-bit word */
  64 .macro  DD, addr, addr2, nr
  65         mov.l 1f, r1
  66         mov.l @r1, r0
  67         bra 2f
  68          nop
  69         .align 2
  70 1 :     .long \addr
  71 2 :
  72 .endm
  73
  74 #endif /* __ROMIMAGE_MACRO_H */