arch/arm/mach-ux500/include/mach/debug-macro.S

   1 /*
   2  * Debugging macro include header
   3  *
   4  *  Copyright (C) 2009 ST-Ericsson
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11 #include <mach/hardware.h>
  12
  13 #if CONFIG_UX500_DEBUG_UART > 2
  14 #error Invalid Ux500 debug UART
  15 #endif
  16
  17 #define __UX500_UART(n) UX500_UART##n##_BASE
  18 #define UX500_UART(n)   __UX500_UART(n)
  19 #define UART_BASE       UX500_UART(CONFIG_UX500_DEBUG_UART)
  20
  21         .macro  addruart, rx, tmp
  22         mrc     p15, 0, \rx, c1, c0
  23         tst     \rx, #1                                 @ MMU enabled?
  24         ldreq   \rx, =UART_BASE                         @ no, physical address
  25         ldrne   \rx, =IO_ADDRESS(UART_BASE)             @ yes, virtual address
  26         .endm
  27
  28 #include <asm/hardware/debug-pl01x.S>