src/target/cortex_a.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2006 by Magnus Lundin                                   *
   6  *   lundin@mlu.mine.nu                                                    *
   7  *                                                                         *
   8  *   Copyright (C) 2008 by Spencer Oliver                                  *
   9  *   spen@spen-soft.co.uk                                                  *
  10  *                                                                         *
  11  *   Copyright (C) 2009 by Dirk Behme                                      *
  12  *   dirk.behme@gmail.com - copy from cortex_m3                            *
  13  *                                                                         *
  14  *   This program is free software; you can redistribute it and/or modify  *
  15  *   it under the terms of the GNU General Public License as published by  *
  16  *   the Free Software Foundation; either version 2 of the License, or     *
  17  *   (at your option) any later version.                                   *
  18  *                                                                         *
  19  *   This program is distributed in the hope that it will be useful,       *
  20  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  21  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  22  *   GNU General Public License for more details.                          *
  23  *                                                                         *
  24  *   You should have received a copy of the GNU General Public License     *
  25  *   along with this program; if not, write to the                         *
  26  *   Free Software Foundation, Inc.,                                       *
  27  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  28  ***************************************************************************/
  29
  30 #ifndef CORTEX_A8_H
  31 #define CORTEX_A8_H
  32
  33 #include "armv7a.h"
  34
  35 #define CORTEX_A8_COMMON_MAGIC 0x411fc082
  36
  37 #define CPUDBG_CPUID    0xD00
  38 #define CPUDBG_CTYPR    0xD04
  39 #define CPUDBG_TTYPR    0xD0C
  40 #define CPUDBG_LOCKACCESS 0xFB0
  41 #define CPUDBG_LOCKSTATUS 0xFB4
  42
  43 #define BRP_NORMAL 0
  44 #define BRP_CONTEXT 1
  45
  46 #define CORTEX_A8_PADDRDBG_CPU_SHIFT 13
  47
  48 struct cortex_a8_brp {
  49         int used;
  50         int type;
  51         uint32_t value;
  52         uint32_t control;
  53         uint8_t BRPn;
  54 };
  55
  56 struct cortex_a8_common {
  57         int common_magic;
  58         struct arm_jtag jtag_info;
  59
  60         /* Context information */
  61         uint32_t cpudbg_dscr;
  62
  63         /* Saved cp15 registers */
  64         uint32_t cp15_control_reg;
  65         /* latest cp15 register value written and cpsr processor mode */
  66         uint32_t cp15_control_reg_curr;
  67         enum arm_mode curr_mode;
  68
  69
  70         /* Breakpoint register pairs */
  71         int brp_num_context;
  72         int brp_num;
  73         int brp_num_available;
  74         struct cortex_a8_brp *brp_list;
  75
  76         /* Use cortex_a8_read_regs_through_mem for fast register reads */
  77         int fast_reg_read;
  78
  79         struct armv7a_common armv7a_common;
  80
  81 };
  82
  83 static inline struct cortex_a8_common *
  84 target_to_cortex_a8(struct target *target)
  85 {
  86         return container_of(target->arch_info, struct cortex_a8_common, armv7a_common.arm);
  87 }
  88
  89 #endif /* CORTEX_A8_H */