X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm926ejs.c;h=f4c47748cd282e39f5c5e608053a2d27e44f48fd;hp=cc6318b9addf705c55f838cc8cf55d26e7602555;hb=57d7743639d5092770d79f7c4b12ae694c482750;hpb=2861877b32a7a2f4022a1c3d9b66c9b4879878ac diff --git a/src/target/arm926ejs.c b/src/target/arm926ejs.c index cc6318b9ad..f4c47748cd 100644 --- a/src/target/arm926ejs.c +++ b/src/target/arm926ejs.c @@ -25,9 +25,10 @@ #endif #include "arm926ejs.h" -#include "time_support.h" +#include #include "target_type.h" #include "register.h" +#include "arm_opcodes.h" /* @@ -56,7 +57,7 @@ static int arm926ejs_cp15_read(struct target *target, uint32_t op1, uint32_t op2 struct arm_jtag *jtag_info = &arm7_9->jtag_info; uint32_t address = ARM926EJS_CP15_ADDR(op1, op2, CRn, CRm); struct scan_field fields[4]; - uint8_t address_buf[2]; + uint8_t address_buf[2] = {0, 0}; uint8_t nr_w_buf = 0; uint8_t access = 1; @@ -69,28 +70,23 @@ static int arm926ejs_cp15_read(struct target *target, uint32_t op1, uint32_t op2 } 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 = (uint8_t *)value; - - fields[1].tap = jtag_info->tap; fields[1].num_bits = 1; fields[1].out_value = &access; fields[1].in_value = &access; - fields[2].tap = jtag_info->tap; fields[2].num_bits = 14; fields[2].out_value = address_buf; fields[2].in_value = NULL; - fields[3].tap = jtag_info->tap; fields[3].num_bits = 1; fields[3].out_value = &nr_w_buf; fields[3].in_value = NULL; - jtag_add_dr_scan(4, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 4, fields, jtag_get_end_state()); long long then = timeval_ms(); @@ -99,7 +95,7 @@ static int arm926ejs_cp15_read(struct target *target, uint32_t op1, uint32_t op2 /* rescan with NOP, to wait for the access to complete */ access = 0; nr_w_buf = 0; - jtag_add_dr_scan(4, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 4, fields, jtag_get_end_state()); jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value); @@ -149,7 +145,7 @@ static int arm926ejs_cp15_write(struct target *target, uint32_t op1, uint32_t op uint32_t address = ARM926EJS_CP15_ADDR(op1, op2, CRn, CRm); struct scan_field fields[4]; uint8_t value_buf[4]; - uint8_t address_buf[2]; + uint8_t address_buf[2] = {0, 0}; uint8_t nr_w_buf = 1; uint8_t access = 1; @@ -163,27 +159,23 @@ static int arm926ejs_cp15_write(struct target *target, uint32_t op1, uint32_t op } 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 = 1; fields[1].out_value = &access; fields[1].in_value = &access; - fields[2].tap = jtag_info->tap; fields[2].num_bits = 14; fields[2].out_value = address_buf; fields[2].in_value = NULL; - fields[3].tap = jtag_info->tap; fields[3].num_bits = 1; fields[3].out_value = &nr_w_buf; fields[3].in_value = NULL; - jtag_add_dr_scan(4, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 4, fields, jtag_get_end_state()); long long then = timeval_ms(); @@ -192,7 +184,7 @@ static int arm926ejs_cp15_write(struct target *target, uint32_t op1, uint32_t op /* rescan with NOP, to wait for the access to complete */ access = 0; nr_w_buf = 0; - jtag_add_dr_scan(4, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 4, fields, jtag_get_end_state()); if ((retval = jtag_execute_queue()) != ERROR_OK) { return retval; @@ -494,7 +486,7 @@ int arm926ejs_arch_state(struct target *target) }; struct arm926ejs_common *arm926ejs = target_to_arm926(target); - struct armv4_5_common_s *armv4_5; + struct arm *armv4_5; if (arm926ejs->common_magic != ARM926EJS_COMMON_MAGIC) { @@ -504,14 +496,8 @@ int arm926ejs_arch_state(struct target *target) armv4_5 = &arm926ejs->arm7_9_common.armv4_5_common; - LOG_USER("target halted in %s state due to %s, current mode: %s\n" - "cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n" - "MMU: %s, D-Cache: %s, I-Cache: %s", - armv4_5_state_strings[armv4_5->core_state], - Jim_Nvp_value2name_simple(nvp_target_debug_reason,target->debug_reason)->name, - armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)], - buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32), - buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32), + arm_arch_state(target); + LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s", state[arm926ejs->armv4_5_mmu.mmu_enabled], state[arm926ejs->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled], state[arm926ejs->armv4_5_mmu.armv4_5_cache.i_cache_enabled]); @@ -524,7 +510,7 @@ int arm926ejs_soft_reset_halt(struct target *target) int retval = ERROR_OK; struct arm926ejs_common *arm926ejs = target_to_arm926(target); struct arm7_9_common *arm7_9 = target_to_arm7_9(target); - struct armv4_5_common_s *armv4_5 = &arm7_9->armv4_5_common; + struct arm *armv4_5 = &arm7_9->armv4_5_common; struct reg *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT]; if ((retval = target_halt(target)) != ERROR_OK) @@ -565,17 +551,18 @@ int arm926ejs_soft_reset_halt(struct target *target) target->state = TARGET_HALTED; /* SVC, ARM state, IRQ and FIQ disabled */ - buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8, 0xd3); - armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1; - armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1; + uint32_t cpsr; - /* start fetching from 0x0 */ - buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, 0x0); - armv4_5->core_cache->reg_list[15].dirty = 1; - armv4_5->core_cache->reg_list[15].valid = 1; + cpsr = buf_get_u32(armv4_5->cpsr->value, 0, 32); + cpsr &= ~0xff; + cpsr |= 0xd3; + arm_set_cpsr(armv4_5, cpsr); + armv4_5->cpsr->dirty = 1; - armv4_5->core_mode = ARMV4_5_MODE_SVC; - armv4_5->core_state = ARMV4_5_STATE_ARM; + /* start fetching from 0x0 */ + buf_set_u32(armv4_5->pc->value, 0, 32, 0x0); + armv4_5->pc->dirty = 1; + armv4_5->pc->valid = 1; arm926ejs_disable_mmu_caches(target, 1, 1, 1); arm926ejs->armv4_5_mmu.mmu_enabled = 0; @@ -672,6 +659,9 @@ int arm926ejs_init_arch_info(struct target *target, struct arm926ejs_common *arm { struct arm7_9_common *arm7_9 = &arm926ejs->arm7_9_common; + arm7_9->armv4_5_common.mrc = arm926ejs_mrc; + arm7_9->armv4_5_common.mcr = arm926ejs_mcr; + /* initialize arm7/arm9 specific info (including armv4_5) */ arm9tdmi_init_arch_info(target, arm7_9, tap); @@ -712,67 +702,6 @@ static int arm926ejs_target_create(struct target *target, Jim_Interp *interp) return arm926ejs_init_arch_info(target, arm926ejs, target->tap); } -COMMAND_HANDLER(arm926ejs_handle_cp15_command) -{ - int retval; - struct target *target = get_current_target(CMD_CTX); - struct arm926ejs_common *arm926ejs = target_to_arm926(target); - int opcode_1; - int opcode_2; - int CRn; - int CRm; - - if ((CMD_ARGC < 4) || (CMD_ARGC > 5)) - { - command_print(CMD_CTX, "usage: arm926ejs cp15 [value]"); - return ERROR_OK; - } - - COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], opcode_1); - COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], opcode_2); - COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], CRn); - COMMAND_PARSE_NUMBER(int, CMD_ARGV[3], CRm); - - retval = arm926ejs_verify_pointer(CMD_CTX, arm926ejs); - 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; - } - - if (CMD_ARGC == 4) - { - uint32_t value; - if ((retval = arm926ejs->read_cp15(target, opcode_1, opcode_2, CRn, CRm, &value)) != ERROR_OK) - { - command_print(CMD_CTX, "couldn't access register"); - return ERROR_OK; - } - if ((retval = jtag_execute_queue()) != ERROR_OK) - { - return retval; - } - - command_print(CMD_CTX, "%i %i %i %i: %8.8" PRIx32 "", opcode_1, opcode_2, CRn, CRm, value); - } - else - { - uint32_t value; - COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], value); - if ((retval = arm926ejs->write_cp15(target, opcode_1, opcode_2, CRn, CRm, value)) != ERROR_OK) - { - command_print(CMD_CTX, "couldn't access register"); - return ERROR_OK; - } - command_print(CMD_CTX, "%i %i %i %i: %8.8" PRIx32 "", opcode_1, opcode_2, CRn, CRm, value); - } - - return ERROR_OK; -} - COMMAND_HANDLER(arm926ejs_handle_cache_info_command) { int retval; @@ -816,29 +745,28 @@ static int arm926ejs_mmu(struct target *target, int *enabled) return ERROR_OK; } -/** Registers commands to access coprocessor, cache, and debug resources. */ -int arm926ejs_register_commands(struct command_context *cmd_ctx) -{ - int retval; - struct command *arm926ejs_cmd; - - retval = arm9tdmi_register_commands(cmd_ctx); - - arm926ejs_cmd = register_command(cmd_ctx, NULL, "arm926ejs", - NULL, COMMAND_ANY, - "arm926ejs specific commands"); - - register_command(cmd_ctx, arm926ejs_cmd, "cp15", - arm926ejs_handle_cp15_command, COMMAND_EXEC, - "display/modify cp15 register " - " [value]"); - - register_command(cmd_ctx, arm926ejs_cmd, "cache_info", - arm926ejs_handle_cache_info_command, COMMAND_EXEC, - "display information about target caches"); +static const struct command_registration arm926ejs_exec_command_handlers[] = { + { + .name = "cache_info", + .handler = arm926ejs_handle_cache_info_command, + .mode = COMMAND_EXEC, + .help = "display information about target caches", - return retval; -} + }, + COMMAND_REGISTRATION_DONE +}; +const struct command_registration arm926ejs_command_handlers[] = { + { + .chain = arm9tdmi_command_handlers, + }, + { + .name = "arm926ejs", + .mode = COMMAND_ANY, + .help = "arm926ejs command group", + .chain = arm926ejs_exec_command_handlers, + }, + COMMAND_REGISTRATION_DONE +}; /** Holds methods for ARM926 targets. */ struct target_type arm926ejs_target = @@ -858,7 +786,7 @@ struct target_type arm926ejs_target = .deassert_reset = arm7_9_deassert_reset, .soft_reset_halt = arm926ejs_soft_reset_halt, - .get_gdb_reg_list = armv4_5_get_gdb_reg_list, + .get_gdb_reg_list = arm_get_gdb_reg_list, .read_memory = arm7_9_read_memory, .write_memory = arm926ejs_write_memory, @@ -874,15 +802,14 @@ struct target_type arm926ejs_target = .add_watchpoint = arm7_9_add_watchpoint, .remove_watchpoint = arm7_9_remove_watchpoint, - .register_commands = arm926ejs_register_commands, + .commands = arm926ejs_command_handlers, .target_create = arm926ejs_target_create, .init_target = arm9tdmi_init_target, .examine = arm7_9_examine, + .check_reset = arm7_9_check_reset, .virt2phys = arm926ejs_virt2phys, .mmu = arm926ejs_mmu, .read_phys_memory = arm926ejs_read_phys_memory, .write_phys_memory = arm926ejs_write_phys_memory, - .mrc = arm926ejs_mrc, - .mcr = arm926ejs_mcr, };