include/asm-arm/arch-p2001/debug-macro.S

   1 /* linux/include/asm-arm/arch-p2001/debug-macro.S
   2  *
   3  * Debugging macro include header
   4  *
   5  * by Hyok S. Choi <hyok.choi@samsung.com>
   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
  13                 /* UART base address */
  14                 .macro  addruart,rx
  15                 mov     \rx, #0x00140000
  16                 .endm
  17
  18                 /* send char */
  19                 .macro  senduart,rd,rx
  20                 strb    \rd, [\rx]
  21                 .endm
  22
  23                 /* wait for end of transmission */
  24                 .macro  busyuart,rd,rx
  25 1001:           ldrb    \rd, [\rx, #0x24]
  26                 cmp     \rd, #0
  27                 bne     1001b
  28                 .endm
  29
  30                 /* wait for fifo space */
  31                 /* quickest way here: test for >0x20 chars in fifo */
  32                 .macro  waituart,rd,rx
  33 1001:           ldrb    \rd, [\rx, #0x24]
  34                 tst     \rd, #0x20
  35                 bne     1001b
  36                 .endm
  37