include/asm-arm/arch-epxa10db/debug-macro.S

   1 /* linux/include/asm-arm/arch-epxa10db/debug-macro.S
   2  *
   3  * Debugging macro include header
   4  *
   5  *  Copyright (C) 1994-1999 Russell King
   6  *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12 */
  13
  14 #include <asm/arch/excalibur.h>
  15 #define UART00_TYPE
  16 #include <asm/arch/uart00.h>
  17
  18                 .macro  addruart,rx
  19                 mrc     p15, 0, \rx, c1, c0
  20                 tst     \rx, #1                 @ MMU enabled?
  21                 ldr     \rx, =EXC_UART00_BASE   @ physical base address
  22                 orrne   \rx, \rx, #0xff000000   @ virtual base
  23                 orrne   \rx, \rx, #0x00f00000
  24                 .endm
  25
  26                 .macro  senduart,rd,rx
  27                 str     \rd, [\rx, #UART_TD(0)]
  28                 .endm
  29
  30                 .macro  waituart,rd,rx
  31 1001:           ldr     \rd, [\rx, #UART_TSR(0)]
  32                 and     \rd, \rd,  #UART_TSR_TX_LEVEL_MSK
  33                 cmp     \rd, #15
  34                 beq     1001b
  35                 .endm
  36
  37                 .macro  busyuart,rd,rx
  38 1001:           ldr     \rd, [\rx, #UART_TSR(0)]
  39                 ands    \rd, \rd,  #UART_TSR_TX_LEVEL_MSK
  40                 bne     1001b
  41                 .endm