include/asm-arm/arch-aaec2000/debug-macro.S

   1 /*  linux/include/asm-arm/arch-aaec2000/debug-macro.S
   2  *
   3  *  Debugging macro include header
   4  *
   5  *  Copyright (c) 2005 Nicolas Bellido Y Ortega
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  */
  11
  12                 .macro  addruart,rx
  13                 mrc     p15, 0, \rx, c1, c0
  14                 tst     \rx, #1                 @ MMU enabled?
  15                 moveq   \rx, #0x80000000                @ physical
  16                 movne   \rx, #io_p2v(0x80000000)        @ virtual
  17                 orr     \rx, \rx, #0x00000800
  18                 .endm
  19
  20                 .macro  senduart,rd,rx
  21                 str     \rd, [\rx, #0]
  22                 .endm
  23
  24                 .macro  busyuart,rd,rx
  25 1002:           ldr     \rd, [\rx, #0x10]
  26                 tst     \rd, #(1 << 7)
  27                 beq     1002b
  28                 .endm
  29
  30                 .macro  waituart,rd,rx
  31 #if 0
  32 1001:           ldr     \rd, [\rx, #0x10]
  33                 tst     \rd, #(1 << 5)
  34                 beq     1001b
  35 #endif
  36                 .endm