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

   1 /* arch/arm/mach-footbridge/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/dec21285.h>
  15
  16 #ifndef CONFIG_DEBUG_DC21285_PORT
  17         /* For NetWinder debugging */
  18                 .macro  addruart, rp, rv
  19                 mov     \rp, #0x000003f8
  20                 orr     \rv, \rp, #0x7c000000   @ physical
  21                 orr     \rp, \rp, #0xff000000   @ virtual
  22                 .endm
  23
  24 #define UART_SHIFT      0
  25 #define FLOW_CONTROL
  26 #include <asm/hardware/debug-8250.S>
  27
  28 #else
  29         /* For EBSA285 debugging */
  30                 .equ    dc21285_high, ARMCSR_BASE & 0xff000000
  31                 .equ    dc21285_low,  ARMCSR_BASE & 0x00ffffff
  32
  33                 .macro  addruart, rp, rv
  34                 .if     dc21285_low
  35                 mov     \rp, #dc21285_low
  36                 .else
  37                 mov     \rp, #0
  38                 .endif
  39                 orr     \rv, \rp, #0x42000000
  40                 orr     \rp, \rp, #dc21285_high
  41                 .endm
  42
  43                 .macro  senduart,rd,rx
  44                 str     \rd, [\rx, #0x160]      @ UARTDR
  45                 .endm
  46
  47                 .macro  busyuart,rd,rx
  48 1001:           ldr     \rd, [\rx, #0x178]      @ UARTFLG
  49                 tst     \rd, #1 << 3
  50                 bne     1001b
  51                 .endm
  52
  53                 .macro  waituart,rd,rx
  54                 .endm
  55 #endif