arch/arm/mach-clps711x/include/mach/debug-macro.S

   1 /* arch/arm/mach-clps711x/include/mach/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/hardware/clps7111.h>
  15
  16                 .macro  addruart,rx
  17                 mrc     p15, 0, \rx, c1, c0
  18                 tst     \rx, #1                 @ MMU enabled?
  19                 moveq   \rx, #CLPS7111_PHYS_BASE
  20                 movne   \rx, #CLPS7111_VIRT_BASE
  21 #ifndef CONFIG_DEBUG_CLPS711X_UART2
  22                 add     \rx, \rx, #0x0000       @ UART1
  23 #else
  24                 add     \rx, \rx, #0x1000       @ UART2
  25 #endif
  26                 .endm
  27
  28                 .macro  senduart,rd,rx
  29                 str     \rd, [\rx, #0x0480]     @ UARTDR
  30                 .endm
  31
  32                 .macro  waituart,rd,rx
  33 1001:           ldr     \rd, [\rx, #0x0140]     @ SYSFLGx
  34                 tst     \rd, #1 << 11           @ UBUSYx
  35                 bne     1001b
  36                 .endm
  37
  38                 .macro  busyuart,rd,rx
  39                 tst     \rx, #0x1000            @ UART2 does not have CTS here
  40                 bne     1002f
  41 1001:           ldr     \rd, [\rx, #0x0140]     @ SYSFLGx
  42                 tst     \rd, #1 << 8            @ CTS
  43                 bne     1001b
  44 1002:
  45                 .endm
  46