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_A_H
  31 #define CORTEX_A_H
  32
  33 #include "armv7a.h"
  34
  35 #define CORTEX_A_COMMON_MAGIC 0x411fc082
  36 #define CORTEX_A15_COMMON_MAGIC 0x413fc0f1
  37
  38 #define CORTEX_A7_PARTNUM 0xc07
  39 #define CORTEX_A8_PARTNUM 0xc08
  40 #define CORTEX_A9_PARTNUM 0xc09
  41 #define CORTEX_A15_PARTNUM 0xc0f
  42 #define CORTEX_A_MIDR_PARTNUM_MASK 0x0000fff0
  43 #define CORTEX_A_MIDR_PARTNUM_SHIFT 4
  44
  45 #define CPUDBG_CPUID    0xD00
  46 #define CPUDBG_CTYPR    0xD04
  47 #define CPUDBG_TTYPR    0xD0C
  48 #define CPUDBG_LOCKACCESS 0xFB0
  49 #define CPUDBG_LOCKSTATUS 0xFB4
  50 #define CPUDBG_OSLAR_LK_MASK (1 << 1)
  51
  52 #define BRP_NORMAL 0
  53 #define BRP_CONTEXT 1
  54
  55 #define CORTEX_A_PADDRDBG_CPU_SHIFT 13
  56
  57 struct cortex_a_brp {
  58         int used;
  59         int type;
  60         uint32_t value;
  61         uint32_t control;
  62         uint8_t BRPn;
  63 };
  64
  65 struct cortex_a_common {
  66         int common_magic;
  67         struct arm_jtag jtag_info;
  68
  69         /* Context information */
  70         uint32_t cpudbg_dscr;
  71
  72         /* Saved cp15 registers */
  73         uint32_t cp15_control_reg;
  74         /* latest cp15 register value written and cpsr processor mode */
  75         uint32_t cp15_control_reg_curr;
  76         enum arm_mode curr_mode;
  77
  78
  79         /* Breakpoint register pairs */
  80         int brp_num_context;
  81         int brp_num;
  82         int brp_num_available;
  83         struct cortex_a_brp *brp_list;
  84
  85         /* Use cortex_a_read_regs_through_mem for fast register reads */
  86         int fast_reg_read;
  87
  88         uint32_t cpuid;
  89         uint32_t ctypr;
  90         uint32_t ttypr;
  91         uint32_t didr;
  92
  93         struct armv7a_common armv7a_common;
  94
  95 };
  96
  97 static inline struct cortex_a_common *
  98 target_to_cortex_a(struct target *target)
  99 {
 100         return container_of(target->arch_info, struct cortex_a_common, armv7a_common.arm);
 101 }
 102
 103 #endif /* CORTEX_A_H */