X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Ftarget%2Farm966e.c;h=9fe513c9ea404298ed9f209fbe04c7d7b6903c8e;hb=896ac8d4ef3212f80887bf009d626c5becb1240a;hp=1ea2ce77cc97ecca94bc6a2939ac228856f3391c;hpb=687a9553c9cc74a7ca3d3ac5f2470b34e7cc623b;p=openocd.git diff --git a/src/target/arm966e.c b/src/target/arm966e.c index 1ea2ce77cc..9fe513c9ea 100644 --- a/src/target/arm966e.c +++ b/src/target/arm966e.c @@ -1,364 +1,286 @@ -/*************************************************************************** - * Copyright (C) 2005 by Dominic Rath * - * Dominic.Rath@gmx.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. * - ***************************************************************************/ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "arm966e.h" - -#include "arm7_9_common.h" -#include "register.h" -#include "target.h" -#include "armv4_5.h" -#include "embeddedice.h" -#include "log.h" -#include "jtag.h" -#include "arm_jtag.h" - -#include -#include - -#if 0 -#define _DEBUG_INSTRUCTION_EXECUTION_ -#endif - -/* cli handling */ -int arm966e_register_commands(struct command_context_s *cmd_ctx); - -/* forward declarations */ -int arm966e_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target); -int arm966e_init_target(struct command_context_s *cmd_ctx, struct target_s *target); -int arm966e_quit(void); - -target_type_t arm966e_target = -{ - .name = "arm966e", - - .poll = arm7_9_poll, - .arch_state = armv4_5_arch_state, - - .target_request_data = arm7_9_target_request_data, - - .halt = arm7_9_halt, - .resume = arm7_9_resume, - .step = arm7_9_step, - - .assert_reset = arm7_9_assert_reset, - .deassert_reset = arm7_9_deassert_reset, - .soft_reset_halt = arm7_9_soft_reset_halt, - .prepare_reset_halt = arm7_9_prepare_reset_halt, - - .get_gdb_reg_list = armv4_5_get_gdb_reg_list, - - .read_memory = arm7_9_read_memory, - .write_memory = arm7_9_write_memory, - .bulk_write_memory = arm7_9_bulk_write_memory, - .checksum_memory = arm7_9_checksum_memory, - - .run_algorithm = armv4_5_run_algorithm, - - .add_breakpoint = arm7_9_add_breakpoint, - .remove_breakpoint = arm7_9_remove_breakpoint, - .add_watchpoint = arm7_9_add_watchpoint, - .remove_watchpoint = arm7_9_remove_watchpoint, - - .register_commands = arm966e_register_commands, - .target_command = arm966e_target_command, - .init_target = arm966e_init_target, - .quit = arm966e_quit, -}; - -int arm966e_init_target(struct command_context_s *cmd_ctx, struct target_s *target) -{ - arm9tdmi_init_target(cmd_ctx, target); - - return ERROR_OK; -} - -int arm966e_quit(void) -{ - - return ERROR_OK; -} - -int arm966e_init_arch_info(target_t *target, arm966e_common_t *arm966e, int chain_pos, char *variant) -{ - arm9tdmi_common_t *arm9tdmi = &arm966e->arm9tdmi_common; - arm7_9_common_t *arm7_9 = &arm9tdmi->arm7_9_common; - - arm9tdmi_init_arch_info(target, arm9tdmi, chain_pos, variant); - - arm9tdmi->arch_info = arm966e; - arm966e->common_magic = ARM966E_COMMON_MAGIC; - - /* The ARM966E-S implements the ARMv5TE architecture which - * has the BKPT instruction, so we don't have to use a watchpoint comparator - */ - arm7_9->arm_bkpt = ARMV5_BKPT(0x0); - arm7_9->thumb_bkpt = ARMV5_T_BKPT(0x0) & 0xffff; - - arm7_9->sw_bkpts_use_wp = 0; - arm7_9->sw_bkpts_enabled = 1; - - return ERROR_OK; -} - -int arm966e_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target) -{ - int chain_pos; - char *variant = NULL; - arm966e_common_t *arm966e = malloc(sizeof(arm966e_common_t)); - - if (argc < 4) - { - ERROR("'target arm966e' requires at least one additional argument"); - exit(-1); - } - - chain_pos = strtoul(args[3], NULL, 0); - - if (argc >= 5) - variant = args[4]; - - DEBUG("chain_pos: %i, variant: %s", chain_pos, variant); - - arm966e_init_arch_info(target, arm966e, chain_pos, variant); - - return ERROR_OK; -} - -int arm966e_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p, arm9tdmi_common_t **arm9tdmi_p, arm966e_common_t **arm966e_p) -{ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9; - arm9tdmi_common_t *arm9tdmi; - arm966e_common_t *arm966e; - - if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC) - { - return -1; - } - - arm7_9 = armv4_5->arch_info; - if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC) - { - return -1; - } - - arm9tdmi = arm7_9->arch_info; - if (arm9tdmi->common_magic != ARM9TDMI_COMMON_MAGIC) - { - return -1; - } - - arm966e = arm9tdmi->arch_info; - if (arm966e->common_magic != ARM966E_COMMON_MAGIC) - { - return -1; - } - - *armv4_5_p = armv4_5; - *arm7_9_p = arm7_9; - *arm9tdmi_p = arm9tdmi; - *arm966e_p = arm966e; - - return ERROR_OK; -} - -int arm966e_read_cp15(target_t *target, int reg_addr, u32 *value) -{ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; - scan_field_t fields[3]; - u8 reg_addr_buf = reg_addr & 0x3f; - u8 nr_w_buf = 0; - - jtag_add_end_state(TAP_RTI); - arm_jtag_scann(jtag_info, 0xf); - arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); - - fields[0].device = jtag_info->chain_pos; - fields[0].num_bits = 32; - fields[0].out_value = NULL; - fields[0].out_mask = NULL; - fields[0].in_value = NULL; - fields[0].in_check_value = NULL; - fields[0].in_check_mask = NULL; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - - fields[1].device = jtag_info->chain_pos; - fields[1].num_bits = 6; - fields[1].out_value = ®_addr_buf; - fields[1].out_mask = NULL; - fields[1].in_value = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - - fields[2].device = jtag_info->chain_pos; - fields[2].num_bits = 1; - fields[2].out_value = &nr_w_buf; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = NULL; - fields[2].in_check_mask = NULL; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; - - jtag_add_dr_scan(3, fields, -1); - - fields[0].in_handler_priv = value; - fields[0].in_handler = arm_jtag_buf_to_u32; - - jtag_add_dr_scan(3, fields, -1); - -#ifdef _DEBUG_INSTRUCTION_EXECUTION_ - jtag_execute_queue(); - DEBUG("addr: 0x%x value: %8.8x", reg_addr, *value); -#endif - - return ERROR_OK; -} - -int arm966e_write_cp15(target_t *target, int reg_addr, u32 value) -{ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; - scan_field_t fields[3]; - u8 reg_addr_buf = reg_addr & 0x3f; - u8 nr_w_buf = 1; - u8 value_buf[4]; - - buf_set_u32(value_buf, 0, 32, value); - - jtag_add_end_state(TAP_RTI); - arm_jtag_scann(jtag_info, 0xf); - arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); - - fields[0].device = jtag_info->chain_pos; - fields[0].num_bits = 32; - fields[0].out_value = value_buf; - fields[0].out_mask = NULL; - fields[0].in_value = NULL; - fields[0].in_check_value = NULL; - fields[0].in_check_mask = NULL; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - - fields[1].device = jtag_info->chain_pos; - fields[1].num_bits = 6; - fields[1].out_value = ®_addr_buf; - fields[1].out_mask = NULL; - fields[1].in_value = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - - fields[2].device = jtag_info->chain_pos; - fields[2].num_bits = 1; - fields[2].out_value = &nr_w_buf; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = NULL; - fields[2].in_check_mask = NULL; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; - - jtag_add_dr_scan(3, fields, -1); - -#ifdef _DEBUG_INSTRUCTION_EXECUTION_ - DEBUG("addr: 0x%x value: %8.8x", reg_addr, value); -#endif - - return ERROR_OK; -} - -int arm966e_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int retval; - target_t *target = get_current_target(cmd_ctx); - armv4_5_common_t *armv4_5; - arm7_9_common_t *arm7_9; - arm9tdmi_common_t *arm9tdmi; - arm966e_common_t *arm966e; - arm_jtag_t *jtag_info; - - if (arm966e_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm966e) != ERROR_OK) - { - command_print(cmd_ctx, "current target isn't an ARM966e target"); - return ERROR_OK; - } - - jtag_info = &arm7_9->jtag_info; - - if (target->state != TARGET_HALTED) - { - command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd); - return ERROR_OK; - } - - /* one or more argument, access a single register (write if second argument is given */ - if (argc >= 1) - { - int address = strtoul(args[0], NULL, 0); - - if (argc == 1) - { - u32 value; - if ((retval = arm966e_read_cp15(target, address, &value)) != ERROR_OK) - { - command_print(cmd_ctx, "couldn't access reg %i", address); - return ERROR_OK; - } - jtag_execute_queue(); - - command_print(cmd_ctx, "%i: %8.8x", address, value); - } - else if (argc == 2) - { - u32 value = strtoul(args[1], NULL, 0); - if ((retval = arm966e_write_cp15(target, address, value)) != ERROR_OK) - { - command_print(cmd_ctx, "couldn't access reg %i", address); - return ERROR_OK; - } - command_print(cmd_ctx, "%i: %8.8x", address, value); - } - } - - return ERROR_OK; -} - -int arm966e_register_commands(struct command_context_s *cmd_ctx) -{ - int retval; - command_t *arm966e_cmd; - - retval = arm9tdmi_register_commands(cmd_ctx); - arm966e_cmd = register_command(cmd_ctx, NULL, "arm966e", NULL, COMMAND_ANY, "arm966e specific commands"); - register_command(cmd_ctx, arm966e_cmd, "cp15", arm966e_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register [value]"); - - return ERROR_OK; -} +/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * 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. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "arm966e.h" +#include "target_type.h" + + +#if 0 +#define _DEBUG_INSTRUCTION_EXECUTION_ +#endif + +int arm966e_init_arch_info(struct target *target, struct arm966e_common *arm966e, struct jtag_tap *tap) +{ + struct arm7_9_common *arm7_9 = &arm966e->arm7_9_common; + + /* initialize arm7/arm9 specific info (including armv4_5) */ + arm9tdmi_init_arch_info(target, arm7_9, tap); + + arm966e->common_magic = ARM966E_COMMON_MAGIC; + + /* The ARM966E-S implements the ARMv5TE architecture which + * has the BKPT instruction, so we don't have to use a watchpoint comparator + */ + arm7_9->arm_bkpt = ARMV5_BKPT(0x0); + arm7_9->thumb_bkpt = ARMV5_T_BKPT(0x0) & 0xffff; + + return ERROR_OK; +} + +static int arm966e_target_create(struct target *target, Jim_Interp *interp) +{ + struct arm966e_common *arm966e = calloc(1,sizeof(struct arm966e_common)); + + return arm966e_init_arch_info(target, arm966e, target->tap); +} + +static int arm966e_verify_pointer(struct command_context *cmd_ctx, + struct arm966e_common *arm966e) +{ + if (arm966e->common_magic != ARM966E_COMMON_MAGIC) { + command_print(cmd_ctx, "target is not an ARM966"); + return ERROR_TARGET_INVALID; + } + return ERROR_OK; +} + +static int arm966e_read_cp15(struct target *target, int reg_addr, uint32_t *value) +{ + int retval = ERROR_OK; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; + struct scan_field fields[3]; + uint8_t reg_addr_buf = reg_addr & 0x3f; + uint8_t nr_w_buf = 0; + + jtag_set_end_state(TAP_IDLE); + if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK) + { + return retval; + } + arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); + + fields[0].tap = jtag_info->tap; + fields[0].num_bits = 32; + fields[0].out_value = NULL; + fields[0].in_value = NULL; + + fields[1].tap = jtag_info->tap; + fields[1].num_bits = 6; + fields[1].out_value = ®_addr_buf; + fields[1].in_value = NULL; + + fields[2].tap = jtag_info->tap; + fields[2].num_bits = 1; + fields[2].out_value = &nr_w_buf; + fields[2].in_value = NULL; + + jtag_add_dr_scan(3, fields, jtag_get_end_state()); + + fields[1].in_value = (uint8_t *)value; + + jtag_add_dr_scan(3, fields, jtag_get_end_state()); + + jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value); + + +#ifdef _DEBUG_INSTRUCTION_EXECUTION_ + if ((retval = jtag_execute_queue()) != ERROR_OK) + { + return retval; + } + LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, *value); +#endif + + return ERROR_OK; +} + +// EXPORTED to str9x (flash) +int arm966e_write_cp15(struct target *target, int reg_addr, uint32_t value) +{ + int retval = ERROR_OK; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; + struct scan_field fields[3]; + uint8_t reg_addr_buf = reg_addr & 0x3f; + uint8_t nr_w_buf = 1; + uint8_t value_buf[4]; + + buf_set_u32(value_buf, 0, 32, value); + + jtag_set_end_state(TAP_IDLE); + if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK) + { + return retval; + } + arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); + + fields[0].tap = jtag_info->tap; + fields[0].num_bits = 32; + fields[0].out_value = value_buf; + fields[0].in_value = NULL; + + fields[1].tap = jtag_info->tap; + fields[1].num_bits = 6; + fields[1].out_value = ®_addr_buf; + fields[1].in_value = NULL; + + fields[2].tap = jtag_info->tap; + fields[2].num_bits = 1; + fields[2].out_value = &nr_w_buf; + fields[2].in_value = NULL; + + jtag_add_dr_scan(3, fields, jtag_get_end_state()); + +#ifdef _DEBUG_INSTRUCTION_EXECUTION_ + LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, value); +#endif + + return ERROR_OK; +} + +COMMAND_HANDLER(arm966e_handle_cp15_command) +{ + int retval; + struct target *target = get_current_target(CMD_CTX); + struct arm966e_common *arm966e = target_to_arm966(target); + + retval = arm966e_verify_pointer(CMD_CTX, arm966e); + if (retval != ERROR_OK) + return retval; + + if (target->state != TARGET_HALTED) + { + command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME); + return ERROR_OK; + } + + /* one or more argument, access a single register (write if second argument is given */ + if (CMD_ARGC >= 1) + { + uint32_t address; + COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address); + + if (CMD_ARGC == 1) + { + uint32_t value; + if ((retval = arm966e_read_cp15(target, address, &value)) != ERROR_OK) + { + command_print(CMD_CTX, + "couldn't access reg %" PRIi32, + address); + return ERROR_OK; + } + if ((retval = jtag_execute_queue()) != ERROR_OK) + { + return retval; + } + + command_print(CMD_CTX, "%" PRIi32 ": %8.8" PRIx32, + address, value); + } + else if (CMD_ARGC == 2) + { + uint32_t value; + COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value); + if ((retval = arm966e_write_cp15(target, address, value)) != ERROR_OK) + { + command_print(CMD_CTX, + "couldn't access reg %" PRIi32, + address); + return ERROR_OK; + } + command_print(CMD_CTX, "%" PRIi32 ": %8.8" PRIx32, + address, value); + } + } + + return ERROR_OK; +} + +static const struct command_registration arm966e_exec_command_handlers[] = { + { + .name = "cp15", + .handler = arm966e_handle_cp15_command, + .mode = COMMAND_EXEC, + .usage = " [value]", + .help = "display/modify cp15 register", + }, + COMMAND_REGISTRATION_DONE +}; + +const struct command_registration arm966e_command_handlers[] = { + { + .chain = arm9tdmi_command_handlers, + }, + { + .name = "arm966e", + .mode = COMMAND_ANY, + .help = "arm966e command group", + .chain = arm966e_exec_command_handlers, + }, + COMMAND_REGISTRATION_DONE +}; + +/** Holds methods for ARM966 targets. */ +struct target_type arm966e_target = +{ + .name = "arm966e", + + .poll = arm7_9_poll, + .arch_state = armv4_5_arch_state, + + .target_request_data = arm7_9_target_request_data, + + .halt = arm7_9_halt, + .resume = arm7_9_resume, + .step = arm7_9_step, + + .assert_reset = arm7_9_assert_reset, + .deassert_reset = arm7_9_deassert_reset, + .soft_reset_halt = arm7_9_soft_reset_halt, + + .get_gdb_reg_list = armv4_5_get_gdb_reg_list, + + .read_memory = arm7_9_read_memory, + .write_memory = arm7_9_write_memory, + .bulk_write_memory = arm7_9_bulk_write_memory, + + .checksum_memory = arm_checksum_memory, + .blank_check_memory = arm_blank_check_memory, + + .run_algorithm = armv4_5_run_algorithm, + + .add_breakpoint = arm7_9_add_breakpoint, + .remove_breakpoint = arm7_9_remove_breakpoint, + .add_watchpoint = arm7_9_add_watchpoint, + .remove_watchpoint = arm7_9_remove_watchpoint, + + .commands = arm966e_command_handlers, + .target_create = arm966e_target_create, + .init_target = arm9tdmi_init_target, + .examine = arm7_9_examine, +};