ff5ec942d8
Add a mandatory field in struct arm7_9_common for regular, non-optimized memory writes. Together with the existing bulk_memory_write field, this allows variants to select any combination of implementations for regular and bulk writes, without risking infinite loops from accidentally using bulk writes for implementing bulk writes. ARM 7/9 targets may now select arm7_9_memory_write_opt as their target.write_memory implementation, which will dispatch to arm7_9_common.bulk_write_memory if possible, or fallback to arm7_9_common.write_memory otherwise. To avoid loops, bulk write implementations mustn't call any other functions than arm7_9_write_memory_no_opt() to write memory; it will unconditionally call arm7_9_common.write_memory. If they fail, they should simply return error to allow the caller to fallback to regular writes. Tested on a regular ARM7TDMI only. Change-Id: Iae42a6e093e2df68c4823c927d757ae8f42ef388 Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com> Reviewed-on: http://openocd.zylin.com/1685 Tested-by: jenkins Reviewed-by: Sergey A. Borshch <sb-sf@users.sourceforge.net> Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
58 lines
2.6 KiB
C
58 lines
2.6 KiB
C
/***************************************************************************
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* Copyright (C) 2007 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
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***************************************************************************/
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#ifndef ARM926EJS_H
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#define ARM926EJS_H
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#include "arm9tdmi.h"
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#include "armv4_5_mmu.h"
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#define ARM926EJS_COMMON_MAGIC 0xa926a926
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struct arm926ejs_common {
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struct arm7_9_common arm7_9_common;
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uint32_t common_magic;
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struct armv4_5_mmu_common armv4_5_mmu;
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int (*read_cp15)(struct target *target, uint32_t op1, uint32_t op2,
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uint32_t CRn, uint32_t CRm, uint32_t *value);
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int (*write_cp15)(struct target *target, uint32_t op1, uint32_t op2,
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uint32_t CRn, uint32_t CRm, uint32_t value);
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uint32_t cp15_control_reg;
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uint32_t d_fsr;
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uint32_t i_fsr;
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uint32_t d_far;
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};
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static inline struct arm926ejs_common *target_to_arm926(struct target *target)
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{
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return container_of(target->arch_info, struct arm926ejs_common, arm7_9_common.arm);
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}
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int arm926ejs_init_arch_info(struct target *target,
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struct arm926ejs_common *arm926ejs, struct jtag_tap *tap);
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int arm926ejs_arch_state(struct target *target);
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int arm926ejs_write_memory(struct target *target,
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uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
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int arm926ejs_soft_reset_halt(struct target *target);
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extern const struct command_registration arm926ejs_command_handlers[];
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#endif /* ARM926EJS_H */
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