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/***************************************************************************
* Copyright (C) 2008 digenius technology GmbH. *
* Michael Bruck *
* *
* Copyright (C) 2008 Georg Acher <acher@in.tum.de> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef ARM11_H
#define ARM11_H
#include <target/armv4_5.h>
#include <target/arm_dpm.h>
#define ARM11_TAP_DEFAULT TAP_INVALID
#define CHECK_RETVAL(action) \
do { \
int __retval = (action); \
if (__retval != ERROR_OK) { \
LOG_DEBUG("error while calling \"%s\"", \
# action ); \
return __retval; \
} \
} while (0)
/* bits from ARMv7 DIDR */
enum arm11_debug_version
{
ARM11_DEBUG_V6 = 0x01,
ARM11_DEBUG_V61 = 0x02,
ARM11_DEBUG_V7 = 0x03,
ARM11_DEBUG_V7_CP14 = 0x04,
};
struct arm11_common
{
struct arm arm;
/** Debug module state. */
struct arm_dpm dpm;
size_t brp; /**< Number of Breakpoint Register Pairs from DIDR */
size_t wrp; /**< Number of Watchpoint Register Pairs from DIDR */
size_t free_brps; /**< Number of breakpoints allocated */
uint32_t dscr; /**< Last retrieved DSCR value. */
uint32_t saved_rdtr;
uint32_t saved_wdtr;
bool is_rdtr_saved;
bool is_wdtr_saved;
bool simulate_reset_on_next_halt; /**< Perform cleanups of the ARM state on next halt */
struct arm_jtag jtag_info;
};
static inline struct arm11_common *target_to_arm11(struct target *target)
{
return container_of(target->arch_info, struct arm11_common,
arm);
}
/**
* ARM11 DBGTAP instructions
*
* http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301f/I1006229.html
*/
enum arm11_instructions
{
ARM11_EXTEST = 0x00,
ARM11_SCAN_N = 0x02,
ARM11_RESTART = 0x04,
ARM11_HALT = 0x08,
ARM11_INTEST = 0x0C,
ARM11_ITRSEL = 0x1D,
ARM11_IDCODE = 0x1E,
ARM11_BYPASS = 0x1F,
};
enum arm11_dscr
{
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_MASK = 0x0F << 2,
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_HALT = 0x00 << 2,
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_BREAKPOINT = 0x01 << 2,
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_WATCHPOINT = 0x02 << 2,
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_BKPT_INSTRUCTION = 0x03 << 2,
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_EDBGRQ = 0x04 << 2,
ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_VECTOR_CATCH = 0x05 << 2,
};
enum arm11_sc7
{
ARM11_SC7_NULL = 0,
ARM11_SC7_VCR = 7,
ARM11_SC7_PC = 8,
ARM11_SC7_BVR0 = 64,
ARM11_SC7_BCR0 = 80,
ARM11_SC7_WVR0 = 96,
ARM11_SC7_WCR0 = 112,
};
#endif /* ARM11_H */
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