#endif
#include "arm926ejs.h"
-#include "jtag.h"
-#include "log.h"
+#include "time_support.h"
+#include "target_type.h"
-#include <stdlib.h>
-#include <string.h>
-#if 1
+#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
/* cli handling */
-int arm926ejs_register_commands(struct command_context_s *cmd_ctx);
-
int arm926ejs_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int arm926ejs_handle_cp15i_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int arm926ejs_handle_virt2phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int arm926ejs_handle_read_mmu_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* forward declarations */
-int arm926ejs_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target);
+int arm926ejs_target_create(struct target_s *target, Jim_Interp *interp);
int arm926ejs_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
-int arm926ejs_quit();
-int arm926ejs_arch_state(struct target_s *target, char *buf, int buf_size);
-int arm926ejs_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
-int arm926ejs_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
-int arm926ejs_soft_reset_halt(struct target_s *target);
+int arm926ejs_quit(void);
+int arm926ejs_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
-#define ARM926EJS_CP15_ADDR(opcode_1, opcode_2, CRn, CRm) ((opcode_1 << 11) | (opcode_2 << 8) | (CRn << 4) | (CRm << 0))
+static int arm926ejs_virt2phys(struct target_s *target, uint32_t virtual, uint32_t *physical);
+static int arm926ejs_mmu(struct target_s *target, int *enabled);
target_type_t arm926ejs_target =
{
.assert_reset = arm7_9_assert_reset,
.deassert_reset = arm7_9_deassert_reset,
.soft_reset_halt = arm926ejs_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 = arm926ejs_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
+ .checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
.remove_watchpoint = arm7_9_remove_watchpoint,
.register_commands = arm926ejs_register_commands,
- .target_command = arm926ejs_target_command,
+ .target_create = arm926ejs_target_create,
.init_target = arm926ejs_init_target,
- .quit = arm926ejs_quit
+ .examine = arm9tdmi_examine,
+ .quit = arm926ejs_quit,
+ .virt2phys = arm926ejs_virt2phys,
+ .mmu = arm926ejs_mmu
};
-int arm926ejs_catch_broken_irscan(u8 *in_value, void *priv)
+int arm926ejs_catch_broken_irscan(uint8_t *captured, void *priv, scan_field_t *field)
{
+ /* FIX!!!! this code should be reenabled. For now it does not check
+ * the queue...*/
+ return 0;
+#if 0
/* The ARM926EJ-S' instruction register is 4 bits wide */
- *in_value &= 0xf;
-
- if ((*in_value == 0x0f) || (*in_value == 0x00))
+ uint8_t t = *captured & 0xf;
+ uint8_t t2 = *field->in_check_value & 0xf;
+ if (t == t2)
{
- DEBUG("caught ARM926EJ-S invalid Capture-IR result after CP15 access");
return ERROR_OK;
}
- else
+ else if ((t == 0x0f) || (t == 0x00))
{
- return ERROR_JTAG_QUEUE_FAILED;
+ LOG_DEBUG("caught ARM926EJ-S invalid Capture-IR result after CP15 access");
+ return ERROR_OK;
}
+ return ERROR_JTAG_QUEUE_FAILED;;
+#endif
}
-int arm926ejs_read_cp15(target_t *target, u32 address, u32 *value)
+#define ARM926EJS_CP15_ADDR(opcode_1, opcode_2, CRn, CRm) ((opcode_1 << 11) | (opcode_2 << 8) | (CRn << 4) | (CRm << 0))
+
+int arm926ejs_cp15_read(target_t *target, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
{
+ int retval = ERROR_OK;
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;
+ uint32_t address = ARM926EJS_CP15_ADDR(op1, op2, CRn, CRm);
scan_field_t fields[4];
- u8 address_buf[2];
- u8 nr_w_buf = 0;
- u8 access = 1;
- error_handler_t error_handler;
-
+ uint8_t address_buf[2];
+ uint8_t nr_w_buf = 0;
+ uint8_t access = 1;
+
buf_set_u32(address_buf, 0, 14, address);
-
- jtag_add_end_state(TAP_RTI);
- arm_jtag_scann(jtag_info, 0xf);
+
+ 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].device = jtag_info->chain_pos;
+ fields[0].tap = jtag_info->tap;
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[0].in_value = (uint8_t *)value;
- fields[1].device = jtag_info->chain_pos;
+
+ fields[1].tap = jtag_info->tap;
fields[1].num_bits = 1;
fields[1].out_value = &access;
- fields[1].out_mask = NULL;
fields[1].in_value = &access;
- 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].tap = jtag_info->tap;
fields[2].num_bits = 14;
fields[2].out_value = address_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;
- fields[3].device = jtag_info->chain_pos;
+ fields[3].tap = jtag_info->tap;
fields[3].num_bits = 1;
fields[3].out_value = &nr_w_buf;
- fields[3].out_mask = NULL;
fields[3].in_value = NULL;
- fields[3].in_check_value = NULL;
- fields[3].in_check_mask = NULL;
- fields[3].in_handler = NULL;
- fields[3].in_handler_priv = NULL;
-
- jtag_add_dr_scan(4, fields, -1, NULL);
-
- fields[0].in_handler_priv = value;
- fields[0].in_handler = arm_jtag_buf_to_u32;
-
- do
+
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+
+ long long then = timeval_ms();
+
+ for (;;)
{
/* rescan with NOP, to wait for the access to complete */
access = 0;
nr_w_buf = 0;
- jtag_add_dr_scan(4, fields, -1, NULL);
- jtag_execute_queue();
- } while (buf_get_u32(&access, 0, 1) != 1);
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+
+ jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value);
+
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ if (buf_get_u32(&access, 0, 1) == 1)
+ {
+ break;
+ }
+
+ /* 10ms timeout */
+ if ((timeval_ms()-then)>10)
+ {
+ LOG_ERROR("cp15 read operation timed out");
+ return ERROR_FAIL;
+ }
+ }
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
- DEBUG("addr: 0x%x value: %8.8x", address, *value);
+ LOG_DEBUG("addr: 0x%x value: %8.8x", address, *value);
#endif
- error_handler.error_handler = arm926ejs_catch_broken_irscan;
- error_handler.error_handler_priv = NULL;
-
- arm_jtag_set_instr(jtag_info, 0xc, &error_handler);
+ arm_jtag_set_instr(jtag_info, 0xc, &arm926ejs_catch_broken_irscan);
return ERROR_OK;
}
-int arm926ejs_write_cp15(target_t *target, u32 address, u32 value)
+int arm926ejs_cp15_write(target_t *target, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
{
+ int retval = ERROR_OK;
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;
+ uint32_t address = ARM926EJS_CP15_ADDR(op1, op2, CRn, CRm);
scan_field_t fields[4];
- u8 value_buf[4];
- u8 address_buf[2];
- u8 nr_w_buf = 1;
- u8 access = 1;
- error_handler_t error_handler;
-
+ uint8_t value_buf[4];
+ uint8_t address_buf[2];
+ uint8_t nr_w_buf = 1;
+ uint8_t access = 1;
+
buf_set_u32(address_buf, 0, 14, address);
buf_set_u32(value_buf, 0, 32, value);
-
- jtag_add_end_state(TAP_RTI);
- arm_jtag_scann(jtag_info, 0xf);
+
+ 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].device = jtag_info->chain_pos;
+ fields[0].tap = jtag_info->tap;
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].tap = jtag_info->tap;
fields[1].num_bits = 1;
fields[1].out_value = &access;
- fields[1].out_mask = NULL;
fields[1].in_value = &access;
- 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].tap = jtag_info->tap;
fields[2].num_bits = 14;
fields[2].out_value = address_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;
- fields[3].device = jtag_info->chain_pos;
+ fields[3].tap = jtag_info->tap;
fields[3].num_bits = 1;
fields[3].out_value = &nr_w_buf;
- fields[3].out_mask = NULL;
fields[3].in_value = NULL;
- fields[3].in_check_value = NULL;
- fields[3].in_check_mask = NULL;
- fields[3].in_handler = NULL;
- fields[3].in_handler_priv = NULL;
-
- jtag_add_dr_scan(4, fields, -1, NULL);
- do
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+
+ long long then = timeval_ms();
+
+ for (;;)
{
/* rescan with NOP, to wait for the access to complete */
access = 0;
nr_w_buf = 0;
- jtag_add_dr_scan(4, fields, -1, NULL);
- jtag_execute_queue();
- } while (buf_get_u32(&access, 0, 1) != 1);
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ if (buf_get_u32(&access, 0, 1) == 1)
+ {
+ break;
+ }
+
+ /* 10ms timeout */
+ if ((timeval_ms()-then)>10)
+ {
+ LOG_ERROR("cp15 write operation timed out");
+ return ERROR_FAIL;
+ }
+ }
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
- DEBUG("addr: 0x%x value: %8.8x", address, value);
+ LOG_DEBUG("addr: 0x%x value: %8.8x", address, value);
#endif
- error_handler.error_handler = arm926ejs_catch_broken_irscan;
- error_handler.error_handler_priv = NULL;
-
- arm_jtag_set_instr(jtag_info, 0xf, &error_handler);
+ arm_jtag_set_instr(jtag_info, 0xf, &arm926ejs_catch_broken_irscan);
return ERROR_OK;
}
embeddedice_read_reg(dbg_stat);
if ((retval = jtag_execute_queue()) != ERROR_OK)
return retval;
-
+
+ /* Method-Of-Entry (MOE) field */
debug_reason = buf_get_u32(dbg_stat->value, 6, 4);
-
+
switch (debug_reason)
{
+ /* case 0: no debug entry */
case 1:
- DEBUG("breakpoint from EICE unit 0");
+ LOG_DEBUG("breakpoint from EICE unit 0");
target->debug_reason = DBG_REASON_BREAKPOINT;
break;
case 2:
- DEBUG("breakpoint from EICE unit 1");
+ LOG_DEBUG("breakpoint from EICE unit 1");
target->debug_reason = DBG_REASON_BREAKPOINT;
break;
case 3:
- DEBUG("soft breakpoint (BKPT instruction)");
+ LOG_DEBUG("soft breakpoint (BKPT instruction)");
target->debug_reason = DBG_REASON_BREAKPOINT;
break;
case 4:
- DEBUG("vector catch breakpoint");
+ LOG_DEBUG("vector catch breakpoint");
target->debug_reason = DBG_REASON_BREAKPOINT;
break;
case 5:
- DEBUG("external breakpoint");
+ LOG_DEBUG("external breakpoint");
target->debug_reason = DBG_REASON_BREAKPOINT;
break;
case 6:
- DEBUG("watchpoint from EICE unit 0");
+ LOG_DEBUG("watchpoint from EICE unit 0");
target->debug_reason = DBG_REASON_WATCHPOINT;
break;
case 7:
- DEBUG("watchpoint from EICE unit 1");
+ LOG_DEBUG("watchpoint from EICE unit 1");
target->debug_reason = DBG_REASON_WATCHPOINT;
break;
case 8:
- DEBUG("external watchpoint");
+ LOG_DEBUG("external watchpoint");
target->debug_reason = DBG_REASON_WATCHPOINT;
break;
case 9:
- DEBUG("internal debug request");
+ LOG_DEBUG("internal debug request");
target->debug_reason = DBG_REASON_DBGRQ;
break;
case 10:
- DEBUG("external debug request");
+ LOG_DEBUG("external debug request");
target->debug_reason = DBG_REASON_DBGRQ;
break;
case 11:
- ERROR("BUG: debug re-entry from system speed access shouldn't be handled here");
+ LOG_DEBUG("debug re-entry from system speed access");
+ /* This is normal when connecting to something that's
+ * already halted, or in some related code paths, but
+ * otherwise is surprising (and presumably wrong).
+ */
+ switch (target->debug_reason) {
+ case DBG_REASON_DBGRQ:
+ break;
+ default:
+ LOG_ERROR("unexpected -- debug re-entry");
+ /* FALLTHROUGH */
+ case DBG_REASON_UNDEFINED:
+ target->debug_reason = DBG_REASON_DBGRQ;
+ break;
+ }
+ break;
+ case 12:
+ /* FIX!!!! here be dragons!!! We need to fail here so
+ * the target will interpreted as halted but we won't
+ * try to talk to it right now... a resume + halt seems
+ * to sync things up again. Please send an email to
+ * openocd development mailing list if you have hardware
+ * to donate to look into this problem....
+ */
+ LOG_WARNING("WARNING: mystery debug reason MOE = 0xc. Try issuing a resume + halt.");
+ target->debug_reason = DBG_REASON_DBGRQ;
break;
default:
- ERROR("BUG: unknown debug reason: 0x%x", debug_reason);
+ LOG_WARNING("WARNING: unknown debug reason: 0x%x", debug_reason);
+ /* Oh agony! should we interpret this as a halt request or
+ * that the target stopped on it's own accord?
+ */
target->debug_reason = DBG_REASON_DBGRQ;
+ /* if we fail here, we won't talk to the target and it will
+ * be reported to be in the halted state */
+ break;
}
-
+
return ERROR_OK;
}
-u32 arm926ejs_get_ttb(target_t *target)
+uint32_t arm926ejs_get_ttb(target_t *target)
{
+ armv4_5_common_t *armv4_5 = target->arch_info;
+ arm7_9_common_t *arm7_9 = armv4_5->arch_info;
+ arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
+ arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
int retval;
- u32 ttb = 0x0;
+ uint32_t ttb = 0x0;
- if ((retval = arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 2, 0), &ttb)) != ERROR_OK)
+ if ((retval = arm926ejs->read_cp15(target, 0, 0, 2, 0, &ttb)) != ERROR_OK)
return retval;
return ttb;
void arm926ejs_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
{
- u32 cp15_control;
+ armv4_5_common_t *armv4_5 = target->arch_info;
+ arm7_9_common_t *arm7_9 = armv4_5->arch_info;
+ arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
+ arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
+ uint32_t cp15_control;
/* read cp15 control register */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 1, 0), &cp15_control);
+ arm926ejs->read_cp15(target, 0, 0, 1, 0, &cp15_control);
jtag_execute_queue();
-
+
if (mmu)
{
/* invalidate TLB */
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 8, 7), 0x0);
-
+ arm926ejs->write_cp15(target, 0, 0, 8, 7, 0x0);
+
cp15_control &= ~0x1U;
}
-
+
if (d_u_cache)
{
- u32 debug_override;
- /* read-modify-write CP15 debug override register
+ uint32_t debug_override;
+ /* read-modify-write CP15 debug override register
* to enable "test and clean all" */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 15, 0), &debug_override);
+ arm926ejs->read_cp15(target, 0, 0, 15, 0, &debug_override);
debug_override |= 0x80000;
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 15, 0), debug_override);
-
+ arm926ejs->write_cp15(target, 0, 0, 15, 0, debug_override);
+
/* clean and invalidate DCache */
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 7, 5), 0x0);
+ arm926ejs->write_cp15(target, 0, 0, 7, 5, 0x0);
- /* write CP15 debug override register
+ /* write CP15 debug override register
* to disable "test and clean all" */
debug_override &= ~0x80000;
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 15, 0), debug_override);
-
+ arm926ejs->write_cp15(target, 0, 0, 15, 0, debug_override);
+
cp15_control &= ~0x4U;
}
-
+
if (i_cache)
{
/* invalidate ICache */
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 7, 5), 0x0);
-
+ arm926ejs->write_cp15(target, 0, 0, 7, 5, 0x0);
+
cp15_control &= ~0x1000U;
}
-
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 1, 0), cp15_control);
+
+ arm926ejs->write_cp15(target, 0, 0, 1, 0, cp15_control);
}
void arm926ejs_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
{
- u32 cp15_control;
+ armv4_5_common_t *armv4_5 = target->arch_info;
+ arm7_9_common_t *arm7_9 = armv4_5->arch_info;
+ arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
+ arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
+ uint32_t cp15_control;
/* read cp15 control register */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 1, 0), &cp15_control);
+ arm926ejs->read_cp15(target, 0, 0, 1, 0, &cp15_control);
jtag_execute_queue();
-
+
if (mmu)
cp15_control |= 0x1U;
-
+
if (d_u_cache)
cp15_control |= 0x4U;
-
+
if (i_cache)
cp15_control |= 0x1000U;
-
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 1, 0), cp15_control);
+
+ arm926ejs->write_cp15(target, 0, 0, 1, 0, cp15_control);
}
void arm926ejs_post_debug_entry(target_t *target)
arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
/* examine cp15 control reg */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 1, 0), &arm926ejs->cp15_control_reg);
+ arm926ejs->read_cp15(target, 0, 0, 1, 0, &arm926ejs->cp15_control_reg);
jtag_execute_queue();
- DEBUG("cp15_control_reg: %8.8x", arm926ejs->cp15_control_reg);
+ LOG_DEBUG("cp15_control_reg: %8.8" PRIx32 "", arm926ejs->cp15_control_reg);
if (arm926ejs->armv4_5_mmu.armv4_5_cache.ctype == -1)
{
- u32 cache_type_reg;
+ uint32_t cache_type_reg;
/* identify caches */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 1, 0, 0), &cache_type_reg);
+ arm926ejs->read_cp15(target, 0, 1, 0, 0, &cache_type_reg);
jtag_execute_queue();
armv4_5_identify_cache(cache_type_reg, &arm926ejs->armv4_5_mmu.armv4_5_cache);
}
arm926ejs->armv4_5_mmu.armv4_5_cache.i_cache_enabled = (arm926ejs->cp15_control_reg & 0x1000U) ? 1 : 0;
/* save i/d fault status and address register */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 5, 0), &arm926ejs->d_fsr);
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 1, 5, 0), &arm926ejs->i_fsr);
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 6, 0), &arm926ejs->d_far);
-
- DEBUG("D FSR: 0x%8.8x, D FAR: 0x%8.8x, I FSR: 0x%8.8x",
- arm926ejs->d_fsr, arm926ejs->d_far, arm926ejs->i_fsr);
+ arm926ejs->read_cp15(target, 0, 0, 5, 0, &arm926ejs->d_fsr);
+ arm926ejs->read_cp15(target, 0, 1, 5, 0, &arm926ejs->i_fsr);
+ arm926ejs->read_cp15(target, 0, 0, 6, 0, &arm926ejs->d_far);
+
+ LOG_DEBUG("D FSR: 0x%8.8" PRIx32 ", D FAR: 0x%8.8" PRIx32 ", I FSR: 0x%8.8" PRIx32 "",
+ arm926ejs->d_fsr, arm926ejs->d_far, arm926ejs->i_fsr);
+ uint32_t cache_dbg_ctrl;
- u32 cache_dbg_ctrl;
-
- /* read-modify-write CP15 cache debug control register
+ /* read-modify-write CP15 cache debug control register
* to disable I/D-cache linefills and force WT */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(7, 0, 15, 0), &cache_dbg_ctrl);
+ arm926ejs->read_cp15(target, 7, 0, 15, 0, &cache_dbg_ctrl);
cache_dbg_ctrl |= 0x7;
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(7, 0, 15, 0), cache_dbg_ctrl);
+ arm926ejs->write_cp15(target, 7, 0, 15, 0, cache_dbg_ctrl);
}
void arm926ejs_pre_restore_context(target_t *target)
arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
/* restore i/d fault status and address register */
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 5, 0), arm926ejs->d_fsr);
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 1, 5, 0), arm926ejs->i_fsr);
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 6, 0), arm926ejs->d_far);
-
- u32 cache_dbg_ctrl;
-
- /* read-modify-write CP15 cache debug control register
+ arm926ejs->write_cp15(target, 0, 0, 5, 0, arm926ejs->d_fsr);
+ arm926ejs->write_cp15(target, 0, 1, 5, 0, arm926ejs->i_fsr);
+ arm926ejs->write_cp15(target, 0, 0, 6, 0, arm926ejs->d_far);
+
+ uint32_t cache_dbg_ctrl;
+
+ /* read-modify-write CP15 cache debug control register
* to reenable I/D-cache linefills and disable WT */
- arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(7, 0, 15, 0), &cache_dbg_ctrl);
+ arm926ejs->read_cp15(target, 7, 0, 15, 0, &cache_dbg_ctrl);
cache_dbg_ctrl &= ~0x7;
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(7, 0, 15, 0), cache_dbg_ctrl);
+ arm926ejs->write_cp15(target, 7, 0, 15, 0, cache_dbg_ctrl);
}
int arm926ejs_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, arm926ejs_common_t **arm926ejs_p)
arm7_9_common_t *arm7_9;
arm9tdmi_common_t *arm9tdmi;
arm926ejs_common_t *arm926ejs;
-
+
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;
}
-
+
arm926ejs = arm9tdmi->arch_info;
if (arm926ejs->common_magic != ARM926EJS_COMMON_MAGIC)
{
return -1;
}
-
+
*armv4_5_p = armv4_5;
*arm7_9_p = arm7_9;
*arm9tdmi_p = arm9tdmi;
*arm926ejs_p = arm926ejs;
-
+
return ERROR_OK;
}
-int arm926ejs_arch_state(struct target_s *target, char *buf, int buf_size)
+int arm926ejs_arch_state(struct target_s *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
-
- char *state[] =
+
+ char *state[] =
{
"disabled", "enabled"
};
-
+
if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
{
- ERROR("BUG: called for a non-ARMv4/5 target");
+ LOG_ERROR("BUG: called for a non-ARMv4/5 target");
exit(-1);
}
-
- snprintf(buf, buf_size,
+
+ LOG_USER(
"target halted in %s state due to %s, current mode: %s\n"
- "cpsr: 0x%8.8x pc: 0x%8.8x\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],
- target_debug_reason_strings[target->debug_reason],
+ 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),
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.d_u_cache_enabled],
state[arm926ejs->armv4_5_mmu.armv4_5_cache.i_cache_enabled]);
-
+
return ERROR_OK;
}
int arm926ejs_soft_reset_halt(struct target_s *target)
{
+ int retval = ERROR_OK;
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
-
- if (target->state == TARGET_RUNNING)
+
+ if ((retval = target_halt(target)) != ERROR_OK)
{
- target->type->halt(target);
+ return retval;
}
-
- while (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
+
+ long long then = timeval_ms();
+ int timeout;
+ while (!(timeout = ((timeval_ms()-then) > 1000)))
{
- embeddedice_read_reg(dbg_stat);
- jtag_execute_queue();
+ if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
+ {
+ embeddedice_read_reg(dbg_stat);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+ } else
+ {
+ break;
+ }
+ if (debug_level >= 1)
+ {
+ /* do not eat all CPU, time out after 1 se*/
+ alive_sleep(100);
+ } else
+ {
+ keep_alive();
+ }
}
-
+ if (timeout)
+ {
+ LOG_ERROR("Failed to halt CPU after 1 sec");
+ return ERROR_TARGET_TIMEOUT;
+ }
+
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;
-
+
/* 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;
-
+
armv4_5->core_mode = ARMV4_5_MODE_SVC;
armv4_5->core_state = ARMV4_5_STATE_ARM;
-
+
arm926ejs_disable_mmu_caches(target, 1, 1, 1);
arm926ejs->armv4_5_mmu.mmu_enabled = 0;
arm926ejs->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 0;
arm926ejs->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
- target_call_event_callbacks(target, TARGET_EVENT_HALTED);
-
- return ERROR_OK;
+ return target_call_event_callbacks(target, TARGET_EVENT_HALTED);
}
-int arm926ejs_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
+int arm926ejs_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
int retval;
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
arm926ejs_common_t *arm926ejs = arm9tdmi->arch_info;
-
+
if ((retval = arm7_9_write_memory(target, address, size, count, buffer)) != ERROR_OK)
return retval;
if (count <= 1)
{
/* invalidate ICache single entry with MVA */
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 1, 7, 5), address);
+ arm926ejs->write_cp15(target, 0, 1, 7, 5, address);
}
else
{
/* invalidate ICache */
- arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(0, 0, 7, 5), address);
+ arm926ejs->write_cp15(target, 0, 0, 7, 5, address);
}
}
int arm926ejs_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
{
arm9tdmi_init_target(cmd_ctx, target);
-
+
return ERROR_OK;
-
}
-int arm926ejs_quit()
+int arm926ejs_quit(void)
{
-
return ERROR_OK;
}
-int arm926ejs_init_arch_info(target_t *target, arm926ejs_common_t *arm926ejs, int chain_pos, char *variant)
+int arm926ejs_init_arch_info(target_t *target, arm926ejs_common_t *arm926ejs, jtag_tap_t *tap)
{
arm9tdmi_common_t *arm9tdmi = &arm926ejs->arm9tdmi_common;
arm7_9_common_t *arm7_9 = &arm9tdmi->arm7_9_common;
-
+
/* initialize arm9tdmi specific info (including arm7_9 and armv4_5)
*/
- arm9tdmi_init_arch_info(target, arm9tdmi, chain_pos, variant);
+ arm9tdmi_init_arch_info(target, arm9tdmi, tap);
arm9tdmi->arch_info = arm926ejs;
arm926ejs->common_magic = ARM926EJS_COMMON_MAGIC;
-
+
arm7_9->post_debug_entry = arm926ejs_post_debug_entry;
arm7_9->pre_restore_context = arm926ejs_pre_restore_context;
-
+
+ arm926ejs->read_cp15 = arm926ejs_cp15_read;
+ arm926ejs->write_cp15 = arm926ejs_cp15_write;
arm926ejs->armv4_5_mmu.armv4_5_cache.ctype = -1;
arm926ejs->armv4_5_mmu.get_ttb = arm926ejs_get_ttb;
arm926ejs->armv4_5_mmu.read_memory = arm7_9_read_memory;
arm926ejs->armv4_5_mmu.enable_mmu_caches = arm926ejs_enable_mmu_caches;
arm926ejs->armv4_5_mmu.has_tiny_pages = 1;
arm926ejs->armv4_5_mmu.mmu_enabled = 0;
-
+
arm7_9->examine_debug_reason = arm926ejs_examine_debug_reason;
-
+
/* The ARM926EJ-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 arm926ejs_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target)
+int arm926ejs_target_create(struct target_s *target, Jim_Interp *interp)
{
- int chain_pos;
- char *variant = NULL;
- arm926ejs_common_t *arm926ejs = malloc(sizeof(arm926ejs_common_t));
-
- if (argc < 4)
- {
- ERROR("'target arm926ejs' 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);
-
- arm926ejs_init_arch_info(target, arm926ejs, chain_pos, variant);
+ arm926ejs_common_t *arm926ejs = calloc(1,sizeof(arm926ejs_common_t));
+
+ arm926ejs_init_arch_info(target, arm926ejs, target->tap);
return ERROR_OK;
}
{
int retval;
command_t *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 <opcode_1> <opcode_2> <CRn> <CRm> [value]");
-
+
register_command(cmd_ctx, arm926ejs_cmd, "cache_info", arm926ejs_handle_cache_info_command, COMMAND_EXEC, "display information about target caches");
register_command(cmd_ctx, arm926ejs_cmd, "virt2phys", arm926ejs_handle_virt2phys_command, COMMAND_EXEC, "translate va to pa <va>");
register_command(cmd_ctx, arm926ejs_cmd, "mwh_phys", arm926ejs_handle_mw_phys_command, COMMAND_EXEC, "write memory half-word <physical addr> <value>");
register_command(cmd_ctx, arm926ejs_cmd, "mwb_phys", arm926ejs_handle_mw_phys_command, COMMAND_EXEC, "write memory byte <physical addr> <value>");
- return ERROR_OK;
+ return retval;
}
int arm926ejs_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
command_print(cmd_ctx, "usage: arm926ejs cp15 <opcode_1> <opcode_2> <CRn> <CRm> [value]");
return ERROR_OK;
}
-
+
opcode_1 = strtoul(args[0], NULL, 0);
opcode_2 = strtoul(args[1], NULL, 0);
CRn = strtoul(args[2], NULL, 0);
command_print(cmd_ctx, "current target isn't an ARM926EJ-S target");
return ERROR_OK;
}
-
+
if (target->state != TARGET_HALTED)
{
command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
return ERROR_OK;
}
-
+
if (argc == 4)
{
- u32 value;
- if ((retval = arm926ejs_read_cp15(target, ARM926EJS_CP15_ADDR(opcode_1, opcode_2, CRn, CRm), &value)) != ERROR_OK)
+ 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;
}
- jtag_execute_queue();
-
- command_print(cmd_ctx, "%i %i %i %i: %8.8x", opcode_1, opcode_2, CRn, CRm, value);
+ 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
{
- u32 value = strtoul(args[4], NULL, 0);
- if ((retval = arm926ejs_write_cp15(target, ARM926EJS_CP15_ADDR(opcode_1, opcode_2, CRn, CRm), value)) != ERROR_OK)
+ uint32_t value = strtoul(args[4], NULL, 0);
+ 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: %8.8x", opcode_1, opcode_2, CRn, CRm, value);
+ command_print(cmd_ctx, "%i %i %i %i: %8.8" PRIx32 "", opcode_1, opcode_2, CRn, CRm, value);
}
return ERROR_OK;
arm7_9_common_t *arm7_9;
arm9tdmi_common_t *arm9tdmi;
arm926ejs_common_t *arm926ejs;
-
+
if (arm926ejs_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm926ejs) != ERROR_OK)
{
command_print(cmd_ctx, "current target isn't an ARM926EJ-S target");
return ERROR_OK;
}
-
+
return armv4_5_handle_cache_info_command(cmd_ctx, &arm926ejs->armv4_5_mmu.armv4_5_cache);
}
int arm926ejs_handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
-{
+{
target_t *target = get_current_target(cmd_ctx);
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
command_print(cmd_ctx, "current target isn't an ARM926EJ-S 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;
}
-
+
return armv4_5_mmu_handle_virt2phys_command(cmd_ctx, cmd, args, argc, target, &arm926ejs->armv4_5_mmu);
}
int arm926ejs_handle_md_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
-{
+{
target_t *target = get_current_target(cmd_ctx);
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
command_print(cmd_ctx, "current target isn't an ARM926EJ-S 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;
}
-
+
return armv4_5_mmu_handle_md_phys_command(cmd_ctx, cmd, args, argc, target, &arm926ejs->armv4_5_mmu);
}
int arm926ejs_handle_mw_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
-{
+{
target_t *target = get_current_target(cmd_ctx);
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
command_print(cmd_ctx, "current target isn't an ARM926EJ-S 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;
}
-
+
return armv4_5_mmu_handle_mw_phys_command(cmd_ctx, cmd, args, argc, target, &arm926ejs->armv4_5_mmu);
}
+
+static int arm926ejs_virt2phys(struct target_s *target, uint32_t virtual, uint32_t *physical)
+{
+ int retval;
+ int type;
+ uint32_t cb;
+ int domain;
+ uint32_t ap;
+
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ arm9tdmi_common_t *arm9tdmi;
+ arm926ejs_common_t *arm926ejs;
+ retval= arm926ejs_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm926ejs);
+ if (retval != ERROR_OK)
+ {
+ return retval;
+ }
+ uint32_t ret = armv4_5_mmu_translate_va(target, &arm926ejs->armv4_5_mmu, virtual, &type, &cb, &domain, &ap);
+ if (type == -1)
+ {
+ return ret;
+ }
+ *physical = ret;
+ return ERROR_OK;
+}
+
+static int arm926ejs_mmu(struct target_s *target, int *enabled)
+{
+ armv4_5_common_t *armv4_5 = target->arch_info;
+ arm926ejs_common_t *arm926ejs = armv4_5->arch_info;
+
+ if (target->state != TARGET_HALTED)
+ {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_INVALID;
+ }
+ *enabled = arm926ejs->armv4_5_mmu.mmu_enabled;
+ return ERROR_OK;
+}
projects / fw / openocd / blobdiff