arch/arm/plat-stmp3xxx/include/mach/debug-macro.S

   1 /*
   2  * Debugging macro include header
   3  *
   4  * Embedded Alley Solutions, Inc <source@embeddedalley.com>
   5  *
   6  * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
   7  * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
   8  */
   9
  10 /*
  11  * The code contained herein is licensed under the GNU General Public
  12  * License. You may obtain a copy of the GNU General Public License
  13  * Version 2 or later at the following locations:
  14  *
  15  * http://www.opensource.org/licenses/gpl-license.html
  16  * http://www.gnu.org/copyleft/gpl.html
  17  */
  18
  19                 .macro  addruart,rx
  20                 mrc     p15, 0, \rx, c1, c0
  21                 tst     \rx, #1                 @ MMU enabled?
  22                 moveq   \rx, #0x80000000        @ physical base address
  23                 addeq   \rx, \rx, #0x00070000
  24                 movne   \rx, #0xf0000000        @ virtual base
  25                 addne   \rx, \rx, #0x00070000
  26                 .endm
  27
  28                 .macro  senduart,rd,rx
  29                 strb    \rd, [\rx, #0]          @ data register at 0
  30                 .endm
  31
  32                 .macro  waituart,rd,rx
  33 1001:           ldr     \rd, [\rx, #0x18]       @ UARTFLG
  34                 tst     \rd, #1 << 5            @ UARTFLGUTXFF - 1 when full
  35                 bne     1001b
  36                 .endm
  37
  38                 .macro  busyuart,rd,rx
  39 1001:           ldr     \rd, [\rx, #0x18]       @ UARTFLG
  40                 tst     \rd, #1 << 3            @ UARTFLGUBUSY - 1 when busy
  41                 bne     1001b
  42                 .endm