arch/arm/plat-tcc/include/mach/debug-macro.S

   1 /*
   2  * Copyright (C) 1994-1999 Russell King
   3  * Copyright (C) 2008-2009 Telechips
   4  * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11
  12                 .macro  addruart,rx,tmp
  13                 mrc     p15, 0, \rx, c1, c0
  14                 tst     \rx, #1                 @ MMU enabled?
  15                 moveq   \rx, #0x90000000        @ physical base address
  16                 movne   \rx, #0xF1000000        @ virtual base
  17                 orr     \rx, \rx, #0x00007000   @ UART0
  18                 .endm
  19
  20                 .macro  senduart,rd,rx
  21                 strb    \rd, [\rx, #0x44]
  22                 .endm
  23
  24                 .macro  waituart,rd,rx
  25                 .endm
  26
  27                 .macro  busyuart,rd,rx
  28 1001:
  29                 ldr \rd, [\rx, #0x14]
  30                 tst \rd, #0x20
  31
  32                 beq 1001b
  33                 .endm