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, rp, rv
  13                 moveq   \rp, #0x90000000        @ physical base address
  14                 movne   \rv, #0xF1000000        @ virtual base
  15                 orr     \rp, \rp, #0x00007000   @ UART0
  16                 orr     \rv, \rv, #0x00007000   @ UART0
  17                 .endm
  18
  19                 .macro  senduart,rd,rx
  20                 strb    \rd, [\rx, #0x44]
  21                 .endm
  22
  23                 .macro  waituart,rd,rx
  24                 .endm
  25
  26                 .macro  busyuart,rd,rx
  27 1001:
  28                 ldr \rd, [\rx, #0x14]
  29                 tst \rd, #0x20
  30
  31                 beq 1001b
  32                 .endm