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   1 /* linux/include/asm-arm/arch-rpc/debug-macro.S
   2  *
   3  * Debugging macro include header
   4  *
   5  *  Copyright (C) 1994-1999 Russell King
   6  *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12 */
  13
  14                 .macro  addruart,rx
  15                 mrc     p15, 0, \rx, c1, c0
  16                 tst     \rx, #1                 @ MMU enabled?
  17                 moveq   \rx, #0x03000000
  18                 movne   \rx, #0xe0000000
  19                 orr     \rx, \rx, #0x00010000
  20                 orr     \rx, \rx, #0x00000fe0
  21                 .endm
  22
  23                 .macro  senduart,rd,rx
  24                 strb    \rd, [\rx]
  25                 .endm
  26
  27                 .macro  busyuart,rd,rx
  28 1001:           ldrb    \rd, [\rx, #0x14]
  29                 and     \rd, \rd, #0x60
  30                 teq     \rd, #0x60
  31                 bne     1001b
  32                 .endm
  33
  34                 .macro  waituart,rd,rx
  35 1001:           ldrb    \rd, [\rx, #0x18]
  36                 tst     \rd, #0x10
  37                 beq     1001b
  38                 .endm