arch/arm/include/debug/vexpress.S

   1 /* arch/arm/mach-realview/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 #define DEBUG_LL_PHYS_BASE              0x10000000
  14 #define DEBUG_LL_UART_OFFSET            0x00009000
  15
  16 #define DEBUG_LL_PHYS_BASE_RS1          0x1c000000
  17 #define DEBUG_LL_UART_OFFSET_RS1        0x00090000
  18
  19 #define DEBUG_LL_UART_PHYS_CRX          0xb0090000
  20
  21 #define DEBUG_LL_VIRT_BASE              0xf8000000
  22
  23 #if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
  24
  25                 .macro  addruart,rp,rv,tmp
  26                 .arch   armv7-a
  27
  28                 @ Make an educated guess regarding the memory map:
  29                 @ - the original A9 core tile (based on ARM Cortex-A9 r0p1)
  30                 @   should use UART at 0x10009000
  31                 @ - all other (RS1 complaint) tiles use UART mapped
  32                 @   at 0x1c090000
  33                 mrc     p15, 0, \rp, c0, c0, 0
  34                 movw    \rv, #0xc091
  35                 movt    \rv, #0x410f
  36                 cmp     \rp, \rv
  37
  38                 @ Original memory map
  39                 moveq   \rp, #DEBUG_LL_UART_OFFSET
  40                 orreq   \rv, \rp, #DEBUG_LL_VIRT_BASE
  41                 orreq   \rp, \rp, #DEBUG_LL_PHYS_BASE
  42
  43                 @ RS1 memory map
  44                 movne   \rp, #DEBUG_LL_UART_OFFSET_RS1
  45                 orrne   \rv, \rp, #DEBUG_LL_VIRT_BASE
  46                 orrne   \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
  47
  48                 .endm
  49
  50 #include <debug/pl01x.S>
  51 #endif