* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#ifdef HAVE_CONFIG_H
#include "config.h"
+#endif
#include "arm920t.h"
-#include "jtag.h"
-#include "log.h"
+#include "time_support.h"
+#include "target_type.h"
-#include <stdlib.h>
-#include <string.h>
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
int arm920t_handle_md_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int arm920t_handle_mw_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int arm920t_handle_read_cache_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int arm920t_handle_read_mmu_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
/* forward declarations */
-int arm920t_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target);
+int arm920t_target_create(struct target_s *target, Jim_Interp *interp);
int arm920t_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
-int arm920t_quit();
-int arm920t_arch_state(struct target_s *target, char *buf, int buf_size);
-int arm920t_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
-int arm920t_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
+int arm920t_quit(void);
+int arm920t_arch_state(struct target_s *target);
+int arm920t_read_memory(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer);
+int arm920t_write_memory(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer);
int arm920t_soft_reset_halt(struct target_s *target);
+#define ARM920T_CP15_PHYS_ADDR(x, y, z) ((x << 5) | (y << 1) << (z))
+
target_type_t arm920t_target =
{
.name = "arm920t",
.poll = arm7_9_poll,
.arch_state = arm920t_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 = arm920t_soft_reset_halt,
-
+
.get_gdb_reg_list = armv4_5_get_gdb_reg_list,
.read_memory = arm920t_read_memory,
.write_memory = arm920t_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 = arm920t_register_commands,
- .target_command = arm920t_target_command,
+ .target_create = arm920t_target_create,
.init_target = arm920t_init_target,
+ .examine = arm9tdmi_examine,
.quit = arm920t_quit
};
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm_jtag_t *jtag_info = &arm7_9->jtag_info;
scan_field_t fields[4];
- u8 access_type_buf = 1;
- u8 reg_addr_buf = reg_addr & 0x3f;
- u8 nr_w_buf = 0;
-
- jtag_add_end_state(TAP_RTI);
+ uint8_t access_type_buf = 1;
+ uint8_t reg_addr_buf = reg_addr & 0x3f;
+ uint8_t nr_w_buf = 0;
+
+ jtag_set_end_state(TAP_IDLE);
arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+ 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 = 1;
fields[0].out_value = &access_type_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 = 32;
fields[1].out_value = NULL;
- 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].tap = jtag_info->tap;
fields[2].num_bits = 6;
fields[2].out_value = ®_addr_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);
- fields[1].in_value = (u8*)value;
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+
+ fields[1].in_value = (uint8_t *)value;
- jtag_add_dr_scan(4, fields, -1);
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+
+ jtag_add_callback(arm_le_to_h_u32, (uint8_t *)value);
+
+ #ifdef _DEBUG_INSTRUCTION_EXECUTION_
+ jtag_execute_queue();
+ LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, *value);
+#endif
return ERROR_OK;
}
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm_jtag_t *jtag_info = &arm7_9->jtag_info;
scan_field_t fields[4];
- u8 access_type_buf = 1;
- u8 reg_addr_buf = reg_addr & 0x3f;
- u8 nr_w_buf = 1;
-
- jtag_add_end_state(TAP_RTI);
+ uint8_t access_type_buf = 1;
+ 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);
arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+ 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 = 1;
fields[0].out_value = &access_type_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 = 32;
- fields[1].out_value = (u8*)&value;
- fields[1].out_mask = NULL;
+ fields[1].out_value = value_buf;
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].tap = jtag_info->tap;
fields[2].num_bits = 6;
fields[2].out_value = ®_addr_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);
+
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
+
+#ifdef _DEBUG_INSTRUCTION_EXECUTION_
+ LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, value);
+#endif
return ERROR_OK;
}
-int arm920t_read_cp15_interpreted(target_t *target, u32 opcode, u32 *value)
+int arm920t_execute_cp15(target_t *target, u32 cp15_opcode, u32 arm_opcode)
{
- u32 cp15c15 = 0x0;
- scan_field_t fields[4];
- u8 access_type_buf = 0; /* interpreted access */
- u8 reg_addr_buf = 0x0;
- u8 nr_w_buf = 0;
+ int retval;
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;
- u32* context_p[1];
-
- /* read-modify-write CP15 test state register
- * to enable interpreted access mode */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
- jtag_execute_queue();
- cp15c15 |= 1; /* set interpret mode */
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ scan_field_t fields[4];
+ uint8_t access_type_buf = 0; /* interpreted access */
+ uint8_t reg_addr_buf = 0x0;
+ uint8_t nr_w_buf = 0;
+ uint8_t cp15_opcode_buf[4];
- jtag_add_end_state(TAP_RTI);
+ jtag_set_end_state(TAP_IDLE);
arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+ arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
+
+ buf_set_u32(cp15_opcode_buf, 0, 32, cp15_opcode);
- fields[0].device = jtag_info->chain_pos;
+ fields[0].tap = jtag_info->tap;
fields[0].num_bits = 1;
fields[0].out_value = &access_type_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 = 32;
- fields[1].out_value = (u8*)&opcode;
- fields[1].out_mask = NULL;
+ fields[1].out_value = cp15_opcode_buf;
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].tap = jtag_info->tap;
fields[2].num_bits = 6;
fields[2].out_value = ®_addr_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);
+ jtag_add_dr_scan(4, fields, jtag_get_end_state());
- arm9tdmi_clock_out(jtag_info, ARMV4_5_LDR(0, 15), 0, NULL, 0);
+ arm9tdmi_clock_out(jtag_info, arm_opcode, 0, NULL, 0);
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1);
- arm7_9_execute_sys_speed(target);
- jtag_execute_queue();
+ retval = arm7_9_execute_sys_speed(target);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ LOG_ERROR("failed executing JTAG queue, exiting");
+ return retval;
+ }
+
+ return ERROR_OK;
+}
+
+int arm920t_read_cp15_interpreted(target_t *target, u32 cp15_opcode, u32 address, u32 *value)
+{
+ armv4_5_common_t *armv4_5 = target->arch_info;
+ u32* regs_p[1];
+ u32 regs[2];
+ u32 cp15c15 = 0x0;
+
+ /* load address into R1 */
+ regs[1] = address;
+ arm9tdmi_write_core_regs(target, 0x2, regs);
- /* read-modify-write CP15 test state register
- * to disable interpreted access mode */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
+ /* read-modify-write CP15 test state register
+ * to enable interpreted access mode */
+ arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
jtag_execute_queue();
+ cp15c15 |= 1; /* set interpret mode */
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* execute CP15 instruction and ARM load (reading from coprocessor) */
+ arm920t_execute_cp15(target, cp15_opcode, ARMV4_5_LDR(0, 1));
+
+ /* disable interpreted access mode */
cp15c15 &= ~1U; /* clear interpret mode */
arm920t_write_cp15_physical(target, 0x1e, cp15c15);
- context_p[0] = value;
- arm9tdmi_read_core_regs(target, 0x1, context_p);
+ /* retrieve value from R0 */
+ regs_p[0] = value;
+ arm9tdmi_read_core_regs(target, 0x1, regs_p);
jtag_execute_queue();
-
- DEBUG("opcode: %8.8x, value: %8.8x", opcode, *value);
+
+#ifdef _DEBUG_INSTRUCTION_EXECUTION_
+ LOG_DEBUG("cp15_opcode: %8.8x, address: %8.8x, value: %8.8x", cp15_opcode, address, *value);
+#endif
+
+ if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+ return ERROR_FAIL;
ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = 1;
- ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 15).dirty = 1;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = 1;
return ERROR_OK;
}
-int arm920t_write_cp15_interpreted(target_t *target, u32 opcode, u32 value, u32 address)
+int arm920t_write_cp15_interpreted(target_t *target, u32 cp15_opcode, u32 value, u32 address)
{
u32 cp15c15 = 0x0;
- scan_field_t fields[4];
- u8 access_type_buf = 0; /* interpreted access */
- u8 reg_addr_buf = 0x0;
- u8 nr_w_buf = 0;
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;
u32 regs[2];
+ /* load value, address into R0, R1 */
regs[0] = value;
regs[1] = address;
-
arm9tdmi_write_core_regs(target, 0x3, regs);
- /* read-modify-write CP15 test state register
+ /* read-modify-write CP15 test state register
* to enable interpreted access mode */
arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
jtag_execute_queue();
cp15c15 |= 1; /* set interpret mode */
arm920t_write_cp15_physical(target, 0x1e, cp15c15);
- jtag_add_end_state(TAP_RTI);
- arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+ /* execute CP15 instruction and ARM store (writing to coprocessor) */
+ arm920t_execute_cp15(target, cp15_opcode, ARMV4_5_STR(0, 1));
- fields[0].device = jtag_info->chain_pos;
- fields[0].num_bits = 1;
- fields[0].out_value = &access_type_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 = 32;
- fields[1].out_value = (u8*)&opcode;
- 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 = 6;
- fields[2].out_value = ®_addr_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].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);
-
- arm9tdmi_clock_out(jtag_info, ARMV4_5_STR(0, 1), 0, NULL, 0);
- arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1);
- arm7_9_execute_sys_speed(target);
- jtag_execute_queue();
-
- /* read-modify-write CP15 test state register
- * to disable interpreted access mode */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
- jtag_execute_queue();
+ /* disable interpreted access mode */
cp15c15 &= ~1U; /* set interpret mode */
arm920t_write_cp15_physical(target, 0x1e, cp15c15);
- DEBUG("opcode: %8.8x, value: %8.8x, address: %8.8x", opcode, value, address);
+#ifdef _DEBUG_INSTRUCTION_EXECUTION_
+ LOG_DEBUG("cp15_opcode: %8.8x, value: %8.8x, address: %8.8x", cp15_opcode, value, address);
+#endif
+
+ if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+ return ERROR_FAIL;
+
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = 1;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = 1;
return ERROR_OK;
}
int retval;
u32 ttb = 0x0;
- if ((retval = arm920t_read_cp15_interpreted(target, 0xeebf0f51, &ttb)) != ERROR_OK)
+ if ((retval = arm920t_read_cp15_interpreted(target, 0xeebf0f51, 0x0, &ttb)) != ERROR_OK)
return retval;
return ttb;
/* read cp15 control register */
arm920t_read_cp15_physical(target, 0x2, &cp15_control);
jtag_execute_queue();
-
+
if (mmu)
cp15_control &= ~0x1U;
-
+
if (d_u_cache)
cp15_control &= ~0x4U;
-
+
if (i_cache)
cp15_control &= ~0x1000U;
/* read cp15 control register */
arm920t_read_cp15_physical(target, 0x2, &cp15_control);
jtag_execute_queue();
-
+
if (mmu)
cp15_control |= 0x1U;
-
+
if (d_u_cache)
cp15_control |= 0x4U;
-
+
if (i_cache)
cp15_control |= 0x1000U;
-
+
arm920t_write_cp15_physical(target, 0x2, cp15_control);
}
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
arm920t_common_t *arm920t = arm9tdmi->arch_info;
-
+
/* examine cp15 control reg */
arm920t_read_cp15_physical(target, 0x2, &arm920t->cp15_control_reg);
jtag_execute_queue();
- DEBUG("cp15_control_reg: %8.8x", arm920t->cp15_control_reg);
+ LOG_DEBUG("cp15_control_reg: %8.8x", arm920t->cp15_control_reg);
if (arm920t->armv4_5_mmu.armv4_5_cache.ctype == -1)
{
arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = (arm920t->cp15_control_reg & 0x1000U) ? 1 : 0;
/* save i/d fault status and address register */
- arm920t_read_cp15_interpreted(target, 0xee150f10, &arm920t->d_fsr);
- arm920t_read_cp15_interpreted(target, 0xee150f30, &arm920t->i_fsr);
- arm920t_read_cp15_interpreted(target, 0xee160f10, &arm920t->d_far);
- arm920t_read_cp15_interpreted(target, 0xee160f30, &arm920t->i_far);
-
- /* read-modify-write CP15 test state register
- * to disable I/D-cache linefills */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
- jtag_execute_queue();
- cp15c15 |= 0x600;
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ arm920t_read_cp15_interpreted(target, 0xee150f10, 0x0, &arm920t->d_fsr);
+ arm920t_read_cp15_interpreted(target, 0xee150f30, 0x0, &arm920t->i_fsr);
+ arm920t_read_cp15_interpreted(target, 0xee160f10, 0x0, &arm920t->d_far);
+ arm920t_read_cp15_interpreted(target, 0xee160f30, 0x0, &arm920t->i_far);
+
+ LOG_DEBUG("D FSR: 0x%8.8x, D FAR: 0x%8.8x, I FSR: 0x%8.8x, I FAR: 0x%8.8x",
+ arm920t->d_fsr, arm920t->d_far, arm920t->i_fsr, arm920t->i_far);
+ if (arm920t->preserve_cache)
+ {
+ /* read-modify-write CP15 test state register
+ * to disable I/D-cache linefills */
+ arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
+ jtag_execute_queue();
+ cp15c15 |= 0x600;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ }
}
void arm920t_pre_restore_context(target_t *target)
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm9tdmi_common_t *arm9tdmi = arm7_9->arch_info;
arm920t_common_t *arm920t = arm9tdmi->arch_info;
-
+
/* restore i/d fault status and address register */
arm920t_write_cp15_interpreted(target, 0xee050f10, arm920t->d_fsr, 0x0);
arm920t_write_cp15_interpreted(target, 0xee050f30, arm920t->i_fsr, 0x0);
arm920t_write_cp15_interpreted(target, 0xee060f10, arm920t->d_far, 0x0);
arm920t_write_cp15_interpreted(target, 0xee060f30, arm920t->i_far, 0x0);
-
- /* read-modify-write CP15 test state register
- * to reenable I/D-cache linefills */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
- jtag_execute_queue();
- cp15c15 &= ~0x600U;
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ /* read-modify-write CP15 test state register
+ * to reenable I/D-cache linefills */
+ if (arm920t->preserve_cache)
+ {
+ arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
+ jtag_execute_queue();
+ cp15c15 &= ~0x600U;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ }
}
int arm920t_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, arm920t_common_t **arm920t_p)
arm7_9_common_t *arm7_9;
arm9tdmi_common_t *arm9tdmi;
arm920t_common_t *arm920t;
-
+
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;
}
-
+
arm920t = arm9tdmi->arch_info;
if (arm920t->common_magic != ARM920T_COMMON_MAGIC)
{
return -1;
}
-
+
*armv4_5_p = armv4_5;
*arm7_9_p = arm7_9;
*arm9tdmi_p = arm9tdmi;
*arm920t_p = arm920t;
-
+
return ERROR_OK;
}
-int arm920t_arch_state(struct target_s *target, char *buf, int buf_size)
+int arm920t_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;
arm920t_common_t *arm920t = 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,
- "target halted in %s state due to %s, current mode: %s\n"
+
+ LOG_USER( "target halted in %s state due to %s, current mode: %s\n"
"cpsr: 0x%8.8x pc: 0x%8.8x\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[arm920t->armv4_5_mmu.mmu_enabled],
- state[arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled],
+ state[arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled],
state[arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled]);
-
+
return ERROR_OK;
}
-int arm920t_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
+int arm920t_read_memory(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer)
{
int retval;
-
+
retval = arm7_9_read_memory(target, address, size, count, buffer);
-
+
return retval;
}
-int arm920t_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
+int arm920t_write_memory(struct target_s *target, u32 address, u32 size, u32 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;
arm920t_common_t *arm920t = arm9tdmi->arch_info;
-
+
if ((retval = arm7_9_write_memory(target, address, size, count, buffer)) != ERROR_OK)
return retval;
{
if (arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
{
- DEBUG("D-Cache enabled, writing through to main memory");
+ LOG_DEBUG("D-Cache enabled, writing through to main memory");
u32 pa, cb, ap;
int type, domain;
if (cb == 3)
armv4_5_mmu_write_physical(target, &arm920t->armv4_5_mmu, pa, size, count, buffer);
}
-
+
if (arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled)
{
- DEBUG("I-Cache enabled, invalidating affected I-Cache line");
+ LOG_DEBUG("I-Cache enabled, invalidating affected I-Cache line");
arm920t_write_cp15_interpreted(target, 0xee070f35, 0x0, address);
}
}
int arm920t_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;
arm920t_common_t *arm920t = 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_CONTROL_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>=3)
+ {
+ /* 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;
-
+
arm920t_disable_mmu_caches(target, 1, 1, 1);
arm920t->armv4_5_mmu.mmu_enabled = 0;
arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 0;
arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
- target_call_event_callbacks(target, TARGET_EVENT_HALTED);
-
+ if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
+ {
+ return retval;
+ }
+
return ERROR_OK;
}
int arm920t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
{
arm9tdmi_init_target(cmd_ctx, target);
-
+
return ERROR_OK;
-
}
-int arm920t_quit()
+int arm920t_quit(void)
{
-
return ERROR_OK;
}
-int arm920t_init_arch_info(target_t *target, arm920t_common_t *arm920t, int chain_pos, char *variant)
+int arm920t_init_arch_info(target_t *target, arm920t_common_t *arm920t, jtag_tap_t *tap)
{
arm9tdmi_common_t *arm9tdmi = &arm920t->arm9tdmi_common;
arm7_9_common_t *arm7_9 = &arm9tdmi->arm7_9_common;
-
- arm9tdmi_init_arch_info(target, arm9tdmi, chain_pos, variant);
+
+ /* initialize arm9tdmi specific info (including arm7_9 and armv4_5)
+ */
+ arm9tdmi_init_arch_info(target, arm9tdmi, tap);
arm9tdmi->arch_info = arm920t;
arm920t->common_magic = ARM920T_COMMON_MAGIC;
-
+
arm7_9->post_debug_entry = arm920t_post_debug_entry;
arm7_9->pre_restore_context = arm920t_pre_restore_context;
-
+
arm920t->armv4_5_mmu.armv4_5_cache.ctype = -1;
arm920t->armv4_5_mmu.get_ttb = arm920t_get_ttb;
arm920t->armv4_5_mmu.read_memory = arm7_9_read_memory;
arm920t->armv4_5_mmu.enable_mmu_caches = arm920t_enable_mmu_caches;
arm920t->armv4_5_mmu.has_tiny_pages = 1;
arm920t->armv4_5_mmu.mmu_enabled = 0;
-
- arm9tdmi->has_single_step = 1;
-
+
+ /* disabling linefills leads to lockups, so keep them enabled for now
+ * this doesn't affect correctness, but might affect timing issues, if
+ * important data is evicted from the cache during the debug session
+ * */
+ arm920t->preserve_cache = 0;
+
+ /* override hw single-step capability from ARM9TDMI */
+ arm7_9->has_single_step = 1;
+
return ERROR_OK;
}
-int arm920t_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target)
+int arm920t_target_create(struct target_s *target, Jim_Interp *interp)
{
- int chain_pos;
- char *variant = NULL;
- arm920t_common_t *arm920t = malloc(sizeof(arm920t_common_t));
-
- if (argc < 4)
- {
- ERROR("'target arm920t' requires at least one additional argument");
- exit(-1);
- }
-
- chain_pos = strtoul(args[3], NULL, 0);
-
- if (argc >= 5)
- variant = strdup(args[4]);
-
- DEBUG("chain_pos: %i, variant: %s", chain_pos, variant);
-
- arm920t_init_arch_info(target, arm920t, chain_pos, variant);
+ arm920t_common_t *arm920t = calloc(1,sizeof(arm920t_common_t));
+
+ arm920t_init_arch_info(target, arm920t, target->tap);
return ERROR_OK;
}
{
int retval;
command_t *arm920t_cmd;
-
-
+
+
retval = arm9tdmi_register_commands(cmd_ctx);
-
+
arm920t_cmd = register_command(cmd_ctx, NULL, "arm920t", NULL, COMMAND_ANY, "arm920t specific commands");
register_command(cmd_ctx, arm920t_cmd, "cp15", arm920t_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <num> [value]");
register_command(cmd_ctx, arm920t_cmd, "mwh_phys", arm920t_handle_mw_phys_command, COMMAND_EXEC, "write memory half-word <physical addr> <value>");
register_command(cmd_ctx, arm920t_cmd, "mwb_phys", arm920t_handle_mw_phys_command, COMMAND_EXEC, "write memory byte <physical addr> <value>");
+ register_command(cmd_ctx, arm920t_cmd, "read_cache", arm920t_handle_read_cache_command, COMMAND_EXEC, "display I/D cache content");
+ register_command(cmd_ctx, arm920t_cmd, "read_mmu", arm920t_handle_read_mmu_command, COMMAND_EXEC, "display I/D mmu content");
+
+ return retval;
+}
+
+int arm920t_handle_read_cache_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int retval = ERROR_OK;
+ target_t *target = get_current_target(cmd_ctx);
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ arm9tdmi_common_t *arm9tdmi;
+ arm920t_common_t *arm920t;
+ arm_jtag_t *jtag_info;
+ u32 cp15c15;
+ u32 cp15_ctrl, cp15_ctrl_saved;
+ u32 regs[16];
+ u32 *regs_p[16];
+ u32 C15_C_D_Ind, C15_C_I_Ind;
+ int i;
+ FILE *output;
+ arm920t_cache_line_t d_cache[8][64], i_cache[8][64];
+ int segment, index;
+
+ if (argc != 1)
+ {
+ command_print(cmd_ctx, "usage: arm920t read_cache <filename>");
+ return ERROR_OK;
+ }
+
+ if ((output = fopen(args[0], "w")) == NULL)
+ {
+ LOG_DEBUG("error opening cache content file");
+ return ERROR_OK;
+ }
+
+ for (i = 0; i < 16; i++)
+ regs_p[i] = ®s[i];
+
+ if (arm920t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm920t) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM920t target");
+ return ERROR_OK;
+ }
+
+ jtag_info = &arm7_9->jtag_info;
+
+ /* disable MMU and Caches */
+ arm920t_read_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), &cp15_ctrl);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+ cp15_ctrl_saved = cp15_ctrl;
+ cp15_ctrl &= ~(ARMV4_5_MMU_ENABLED | ARMV4_5_D_U_CACHE_ENABLED | ARMV4_5_I_CACHE_ENABLED);
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), cp15_ctrl);
+
+ /* read CP15 test state register */
+ arm920t_read_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), &cp15c15);
+ jtag_execute_queue();
+
+ /* read DCache content */
+ fprintf(output, "DCache:\n");
+
+ /* go through segments 0 to nsets (8 on ARM920T, 4 on ARM922T) */
+ for (segment = 0; segment < arm920t->armv4_5_mmu.armv4_5_cache.d_u_size.nsets; segment++)
+ {
+ fprintf(output, "\nsegment: %i\n----------", segment);
+
+ /* Ra: r0 = SBZ(31:8):segment(7:5):SBZ(4:0) */
+ regs[0] = 0x0 | (segment << 5);
+ arm9tdmi_write_core_regs(target, 0x1, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* D CAM Read, loads current victim into C15.C.D.Ind */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,2,0,15,6,2), ARMV4_5_LDR(1, 0));
+
+ /* read current victim */
+ arm920t_read_cp15_physical(target, 0x3d, &C15_C_D_Ind);
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ for (index = 0; index < 64; index++)
+ {
+ /* Ra: r0 = index(31:26):SBZ(25:8):segment(7:5):SBZ(4:0) */
+ regs[0] = 0x0 | (segment << 5) | (index << 26);
+ arm9tdmi_write_core_regs(target, 0x1, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write DCache victim */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,0), ARMV4_5_LDR(1, 0));
+
+ /* Read D RAM */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,2,0,15,10,2), ARMV4_5_LDMIA(0, 0x1fe, 0, 0));
+
+ /* Read D CAM */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,2,0,15,6,2), ARMV4_5_LDR(9, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read D RAM and CAM content */
+ arm9tdmi_read_core_regs(target, 0x3fe, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ d_cache[segment][index].cam = regs[9];
+
+ /* mask LFSR[6] */
+ regs[9] &= 0xfffffffe;
+ fprintf(output, "\nsegment: %i, index: %i, CAM: 0x%8.8x, content (%s):\n", segment, index, regs[9], (regs[9] & 0x10) ? "valid" : "invalid");
+
+ for (i = 1; i < 9; i++)
+ {
+ d_cache[segment][index].data[i] = regs[i];
+ fprintf(output, "%i: 0x%8.8x\n", i-1, regs[i]);
+ }
+
+ }
+
+ /* Ra: r0 = index(31:26):SBZ(25:8):segment(7:5):SBZ(4:0) */
+ regs[0] = 0x0 | (segment << 5) | (C15_C_D_Ind << 26);
+ arm9tdmi_write_core_regs(target, 0x1, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write DCache victim */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,0), ARMV4_5_LDR(1, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ }
+
+ /* read ICache content */
+ fprintf(output, "ICache:\n");
+
+ /* go through segments 0 to nsets (8 on ARM920T, 4 on ARM922T) */
+ for (segment = 0; segment < arm920t->armv4_5_mmu.armv4_5_cache.d_u_size.nsets; segment++)
+ {
+ fprintf(output, "segment: %i\n----------", segment);
+
+ /* Ra: r0 = SBZ(31:8):segment(7:5):SBZ(4:0) */
+ regs[0] = 0x0 | (segment << 5);
+ arm9tdmi_write_core_regs(target, 0x1, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* I CAM Read, loads current victim into C15.C.I.Ind */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,2,0,15,5,2), ARMV4_5_LDR(1, 0));
+
+ /* read current victim */
+ arm920t_read_cp15_physical(target, 0x3b, &C15_C_I_Ind);
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ for (index = 0; index < 64; index++)
+ {
+ /* Ra: r0 = index(31:26):SBZ(25:8):segment(7:5):SBZ(4:0) */
+ regs[0] = 0x0 | (segment << 5) | (index << 26);
+ arm9tdmi_write_core_regs(target, 0x1, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write ICache victim */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,1), ARMV4_5_LDR(1, 0));
+
+ /* Read I RAM */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,2,0,15,9,2), ARMV4_5_LDMIA(0, 0x1fe, 0, 0));
+
+ /* Read I CAM */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,2,0,15,5,2), ARMV4_5_LDR(9, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read I RAM and CAM content */
+ arm9tdmi_read_core_regs(target, 0x3fe, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ i_cache[segment][index].cam = regs[9];
+
+ /* mask LFSR[6] */
+ regs[9] &= 0xfffffffe;
+ fprintf(output, "\nsegment: %i, index: %i, CAM: 0x%8.8x, content (%s):\n", segment, index, regs[9], (regs[9] & 0x10) ? "valid" : "invalid");
+
+ for (i = 1; i < 9; i++)
+ {
+ i_cache[segment][index].data[i] = regs[i];
+ fprintf(output, "%i: 0x%8.8x\n", i-1, regs[i]);
+ }
+ }
+
+ /* Ra: r0 = index(31:26):SBZ(25:8):segment(7:5):SBZ(4:0) */
+ regs[0] = 0x0 | (segment << 5) | (C15_C_D_Ind << 26);
+ arm9tdmi_write_core_regs(target, 0x1, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write ICache victim */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,1), ARMV4_5_LDR(1, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ }
+
+ /* restore CP15 MMU and Cache settings */
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), cp15_ctrl_saved);
+
+ command_print(cmd_ctx, "cache content successfully output to %s", args[0]);
+
+ fclose(output);
+
+ if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+ return ERROR_FAIL;
+
+ /* mark registers dirty. */
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 2).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 2).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 3).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 3).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 4).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 4).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 5).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 5).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 6).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 6).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 7).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 7).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 8).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 8).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 9).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 9).valid;
+
return ERROR_OK;
}
+int arm920t_handle_read_mmu_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int retval = ERROR_OK;
+ target_t *target = get_current_target(cmd_ctx);
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ arm9tdmi_common_t *arm9tdmi;
+ arm920t_common_t *arm920t;
+ arm_jtag_t *jtag_info;
+ u32 cp15c15;
+ u32 cp15_ctrl, cp15_ctrl_saved;
+ u32 regs[16];
+ u32 *regs_p[16];
+ int i;
+ FILE *output;
+ u32 Dlockdown, Ilockdown;
+ arm920t_tlb_entry_t d_tlb[64], i_tlb[64];
+ int victim;
+
+ if (argc != 1)
+ {
+ command_print(cmd_ctx, "usage: arm920t read_mmu <filename>");
+ return ERROR_OK;
+ }
+
+ if ((output = fopen(args[0], "w")) == NULL)
+ {
+ LOG_DEBUG("error opening mmu content file");
+ return ERROR_OK;
+ }
+
+ for (i = 0; i < 16; i++)
+ regs_p[i] = ®s[i];
+
+ if (arm920t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm920t) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM920t target");
+ return ERROR_OK;
+ }
+
+ jtag_info = &arm7_9->jtag_info;
+
+ /* disable MMU and Caches */
+ arm920t_read_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), &cp15_ctrl);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+ cp15_ctrl_saved = cp15_ctrl;
+ cp15_ctrl &= ~(ARMV4_5_MMU_ENABLED | ARMV4_5_D_U_CACHE_ENABLED | ARMV4_5_I_CACHE_ENABLED);
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), cp15_ctrl);
+
+ /* read CP15 test state register */
+ arm920t_read_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), &cp15c15);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ /* prepare reading D TLB content
+ * */
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Read D TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MRC(15,0,0,10,0,0), ARMV4_5_LDR(1, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read D TLB lockdown stored to r1 */
+ arm9tdmi_read_core_regs(target, 0x2, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+ Dlockdown = regs[1];
+
+ for (victim = 0; victim < 64; victim += 8)
+ {
+ /* new lockdown value: base[31:26]:victim[25:20]:SBZ[19:1]:p[0]
+ * base remains unchanged, victim goes through entries 0 to 63 */
+ regs[1] = (Dlockdown & 0xfc000000) | (victim << 20);
+ arm9tdmi_write_core_regs(target, 0x2, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write D TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,0), ARMV4_5_STR(1, 0));
+
+ /* Read D TLB CAM */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,4,0,15,6,4), ARMV4_5_LDMIA(0, 0x3fc, 0, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read D TLB CAM content stored to r2-r9 */
+ arm9tdmi_read_core_regs(target, 0x3fc, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ for (i = 0; i < 8; i++)
+ d_tlb[victim + i].cam = regs[i + 2];
+ }
+
+ for (victim = 0; victim < 64; victim++)
+ {
+ /* new lockdown value: base[31:26]:victim[25:20]:SBZ[19:1]:p[0]
+ * base remains unchanged, victim goes through entries 0 to 63 */
+ regs[1] = (Dlockdown & 0xfc000000) | (victim << 20);
+ arm9tdmi_write_core_regs(target, 0x2, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write D TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,0), ARMV4_5_STR(1, 0));
+
+ /* Read D TLB RAM1 */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,4,0,15,10,4), ARMV4_5_LDR(2,0));
+
+ /* Read D TLB RAM2 */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,4,0,15,2,5), ARMV4_5_LDR(3,0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read D TLB RAM content stored to r2 and r3 */
+ arm9tdmi_read_core_regs(target, 0xc, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ d_tlb[victim].ram1 = regs[2];
+ d_tlb[victim].ram2 = regs[3];
+ }
+
+ /* restore D TLB lockdown */
+ regs[1] = Dlockdown;
+ arm9tdmi_write_core_regs(target, 0x2, regs);
+
+ /* Write D TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,0), ARMV4_5_STR(1, 0));
+
+ /* prepare reading I TLB content
+ * */
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Read I TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MRC(15,0,0,10,0,1), ARMV4_5_LDR(1, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read I TLB lockdown stored to r1 */
+ arm9tdmi_read_core_regs(target, 0x2, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+ Ilockdown = regs[1];
+
+ for (victim = 0; victim < 64; victim += 8)
+ {
+ /* new lockdown value: base[31:26]:victim[25:20]:SBZ[19:1]:p[0]
+ * base remains unchanged, victim goes through entries 0 to 63 */
+ regs[1] = (Ilockdown & 0xfc000000) | (victim << 20);
+ arm9tdmi_write_core_regs(target, 0x2, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write I TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,1), ARMV4_5_STR(1, 0));
+
+ /* Read I TLB CAM */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,4,0,15,5,4), ARMV4_5_LDMIA(0, 0x3fc, 0, 0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read I TLB CAM content stored to r2-r9 */
+ arm9tdmi_read_core_regs(target, 0x3fc, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ for (i = 0; i < 8; i++)
+ i_tlb[i + victim].cam = regs[i + 2];
+ }
+
+ for (victim = 0; victim < 64; victim++)
+ {
+ /* new lockdown value: base[31:26]:victim[25:20]:SBZ[19:1]:p[0]
+ * base remains unchanged, victim goes through entries 0 to 63 */
+ regs[1] = (Dlockdown & 0xfc000000) | (victim << 20);
+ arm9tdmi_write_core_regs(target, 0x2, regs);
+
+ /* set interpret mode */
+ cp15c15 |= 0x1;
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+
+ /* Write I TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,1), ARMV4_5_STR(1, 0));
+
+ /* Read I TLB RAM1 */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,4,0,15,9,4), ARMV4_5_LDR(2,0));
+
+ /* Read I TLB RAM2 */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,4,0,15,1,5), ARMV4_5_LDR(3,0));
+
+ /* clear interpret mode */
+ cp15c15 &= ~0x1;
+ arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+
+ /* read I TLB RAM content stored to r2 and r3 */
+ arm9tdmi_read_core_regs(target, 0xc, regs_p);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ i_tlb[victim].ram1 = regs[2];
+ i_tlb[victim].ram2 = regs[3];
+ }
+
+ /* restore I TLB lockdown */
+ regs[1] = Ilockdown;
+ arm9tdmi_write_core_regs(target, 0x2, regs);
+
+ /* Write I TLB lockdown */
+ arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,1), ARMV4_5_STR(1, 0));
+
+ /* restore CP15 MMU and Cache settings */
+ arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), cp15_ctrl_saved);
+
+ /* output data to file */
+ fprintf(output, "D TLB content:\n");
+ for (i = 0; i < 64; i++)
+ {
+ fprintf(output, "%i: 0x%8.8x 0x%8.8x 0x%8.8x %s\n", i, d_tlb[i].cam, d_tlb[i].ram1, d_tlb[i].ram2, (d_tlb[i].cam & 0x20) ? "(valid)" : "(invalid)");
+ }
+
+ fprintf(output, "\n\nI TLB content:\n");
+ for (i = 0; i < 64; i++)
+ {
+ fprintf(output, "%i: 0x%8.8x 0x%8.8x 0x%8.8x %s\n", i, i_tlb[i].cam, i_tlb[i].ram1, i_tlb[i].ram2, (i_tlb[i].cam & 0x20) ? "(valid)" : "(invalid)");
+ }
+
+ command_print(cmd_ctx, "mmu content successfully output to %s", args[0]);
+
+ fclose(output);
+
+ if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+ return ERROR_FAIL;
+
+ /* mark registers dirty */
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 0).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 1).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 2).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 2).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 3).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 3).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 4).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 4).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 5).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 5).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 6).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 6).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 7).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 7).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 8).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 8).valid;
+ ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 9).dirty = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, 9).valid;
+
+ return ERROR_OK;
+}
int arm920t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int retval;
command_print(cmd_ctx, "current target isn't an ARM920t 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);
command_print(cmd_ctx, "couldn't access reg %i", address);
return ERROR_OK;
}
- jtag_execute_queue();
-
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ return retval;
+ }
+
command_print(cmd_ctx, "%i: %8.8x", address, value);
}
else if (argc == 2)
command_print(cmd_ctx, "current target isn't an ARM920t 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);
if (argc == 1)
{
u32 value;
- if ((retval = arm920t_read_cp15_interpreted(target, opcode, &value)) != ERROR_OK)
+ if ((retval = arm920t_read_cp15_interpreted(target, opcode, 0x0, &value)) != ERROR_OK)
{
command_print(cmd_ctx, "couldn't execute %8.8x", opcode);
return ERROR_OK;
}
-
+
command_print(cmd_ctx, "%8.8x: %8.8x", opcode, value);
}
else if (argc == 2)
command_print(cmd_ctx, "%8.8x: %8.8x %8.8x", opcode, value, address);
}
}
+ else
+ {
+ command_print(cmd_ctx, "usage: arm920t cp15i <opcode> [value] [address]");
+ }
return ERROR_OK;
}
arm7_9_common_t *arm7_9;
arm9tdmi_common_t *arm9tdmi;
arm920t_common_t *arm920t;
-
+
if (arm920t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm920t) != ERROR_OK)
{
command_print(cmd_ctx, "current target isn't an ARM920t target");
return ERROR_OK;
}
-
+
return armv4_5_handle_cache_info_command(cmd_ctx, &arm920t->armv4_5_mmu.armv4_5_cache);
}
int arm920t_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 ARM920t 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, &arm920t->armv4_5_mmu);
}
int arm920t_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 ARM920t 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, &arm920t->armv4_5_mmu);
}
int arm920t_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 ARM920t 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, &arm920t->armv4_5_mmu);
}
projects / fw / openocd / blobdiff