+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "arm920t.h"
-#include "time_support.h"
+#include <helper/time_support.h>
#include "target_type.h"
-
+#include "register.h"
+#include "arm_opcodes.h"
+
+/*
+ * For information about the ARM920T, see ARM DDI 0151C especially
+ * Chapter 9 about debug support, which shows how to manipulate each
+ * of the different scan chains:
+ *
+ * 0 ... ARM920 signals, e.g. to rest of SOC (unused here)
+ * 1 ... debugging; watchpoint and breakpoint status, etc; also
+ * MMU and cache access in conjunction with scan chain 15
+ * 2 ... EmbeddedICE
+ * 3 ... external boundary scan (SoC-specific, unused here)
+ * 4 ... access to cache tag RAM
+ * 6 ... ETM9
+ * 15 ... access coprocessor 15, "physical" or "interpreted" modes
+ * "interpreted" works with a few actual MRC/MCR instructions
+ * "physical" provides register-like behaviors. Section 9.6.7
+ * covers these details.
+ *
+ * The ARM922T is similar, but with smaller caches (8K each, vs 16K).
+ */
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
-/* cli handling */
-int arm920t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int arm920t_handle_cp15i_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int arm920t_handle_cache_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int arm920t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
-int arm920t_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
-
-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_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(void);
-
+/* Table 9-8 shows scan chain 15 format during physical access mode, using a
+ * dedicated 6-bit address space (encoded in bits 33:38). Writes use one
+ * JTAG scan, while reads use two.
+ *
+ * Table 9-9 lists the thirteen registers which support physical access.
+ * ARM920T_CP15_PHYS_ADDR() constructs the 6-bit reg_addr parameter passed
+ * to arm920t_read_cp15_physical() and arm920t_write_cp15_physical().
+ *
+ * x == bit[38]
+ * y == bits[37:34]
+ * z == bit[33]
+ */
#define ARM920T_CP15_PHYS_ADDR(x, y, z) ((x << 5) | (y << 1) << (z))
-target_type_t arm920t_target =
+/* Registers supporting physical Read access (from table 9-9) */
+#define CP15PHYS_CACHETYPE ARM920T_CP15_PHYS_ADDR(0, 0x0, 1)
+#define CP15PHYS_ICACHE_IDX ARM920T_CP15_PHYS_ADDR(1, 0xd, 1)
+#define CP15PHYS_DCACHE_IDX ARM920T_CP15_PHYS_ADDR(1, 0xe, 1)
+/* NOTE: several more registers support only physical read access */
+
+/* Registers supporting physical Read/Write access (from table 9-9) */
+#define CP15PHYS_CTRL ARM920T_CP15_PHYS_ADDR(0, 0x1, 0)
+#define CP15PHYS_PID ARM920T_CP15_PHYS_ADDR(0, 0xd, 0)
+#define CP15PHYS_TESTSTATE ARM920T_CP15_PHYS_ADDR(0, 0xf, 0)
+#define CP15PHYS_ICACHE ARM920T_CP15_PHYS_ADDR(1, 0x1, 1)
+#define CP15PHYS_DCACHE ARM920T_CP15_PHYS_ADDR(1, 0x2, 1)
+
+static int arm920t_read_cp15_physical(struct target *target,
+ int reg_addr, uint32_t *value)
{
- .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,
- .read_phys_memory = arm920t_read_phys_memory,
- .write_phys_memory = arm920t_write_phys_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,
-
- .add_breakpoint = arm7_9_add_breakpoint,
- .remove_breakpoint = arm7_9_remove_breakpoint,
- .add_watchpoint = arm7_9_add_watchpoint,
- .remove_watchpoint = arm7_9_remove_watchpoint,
-
- .register_commands = arm920t_register_commands,
- .target_create = arm920t_target_create,
- .init_target = arm920t_init_target,
- .examine = arm9tdmi_examine,
- .quit = arm920t_quit
-};
-
-int arm920t_read_cp15_physical(target_t *target, int reg_addr, uint32_t *value)
-{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm_jtag_t *jtag_info = &arm7_9->jtag_info;
- scan_field_t fields[4];
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ struct arm_jtag *jtag_info;
+ struct scan_field fields[4];
uint8_t access_type_buf = 1;
uint8_t reg_addr_buf = reg_addr & 0x3f;
uint8_t nr_w_buf = 0;
+ int retval;
- jtag_set_end_state(TAP_IDLE);
- arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
+ jtag_info = &arm920t->arm7_9_common.jtag_info;
+
+ retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
- fields[0].tap = jtag_info->tap;
fields[0].num_bits = 1;
fields[0].out_value = &access_type_buf;
fields[0].in_value = NULL;
- fields[1].tap = jtag_info->tap;
fields[1].num_bits = 32;
fields[1].out_value = NULL;
fields[1].in_value = NULL;
- fields[2].tap = jtag_info->tap;
fields[2].num_bits = 6;
fields[2].out_value = ®_addr_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, TAP_IDLE);
fields[1].in_value = (uint8_t *)value;
- jtag_add_dr_scan(4, fields, jtag_get_end_state());
+ jtag_add_dr_scan(jtag_info->tap, 4, fields, TAP_IDLE);
jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value);
- #ifdef _DEBUG_INSTRUCTION_EXECUTION_
+#ifdef _DEBUG_INSTRUCTION_EXECUTION_
jtag_execute_queue();
LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, *value);
#endif
return ERROR_OK;
}
-int arm920t_write_cp15_physical(target_t *target, int reg_addr, uint32_t value)
+static int arm920t_write_cp15_physical(struct target *target,
+ int reg_addr, uint32_t value)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm_jtag_t *jtag_info = &arm7_9->jtag_info;
- scan_field_t fields[4];
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ struct arm_jtag *jtag_info;
+ struct scan_field fields[4];
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];
+ int retval;
+
+ jtag_info = &arm920t->arm7_9_common.jtag_info;
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, NULL);
+ retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
- fields[0].tap = jtag_info->tap;
fields[0].num_bits = 1;
fields[0].out_value = &access_type_buf;
fields[0].in_value = NULL;
- fields[1].tap = jtag_info->tap;
fields[1].num_bits = 32;
fields[1].out_value = value_buf;
fields[1].in_value = NULL;
- fields[2].tap = jtag_info->tap;
fields[2].num_bits = 6;
fields[2].out_value = ®_addr_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, TAP_IDLE);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, value);
return ERROR_OK;
}
-int arm920t_execute_cp15(target_t *target, uint32_t cp15_opcode, uint32_t arm_opcode)
+/* See table 9-10 for scan chain 15 format during interpreted access mode.
+ * If the TESTSTATE register is set for interpreted access, certain CP15
+ * MRC and MCR instructions may be executed through scan chain 15.
+ *
+ * Tables 9-11, 9-12, and 9-13 show which MRC and MCR instructions can be
+ * executed using scan chain 15 interpreted mode.
+ */
+static int arm920t_execute_cp15(struct target *target, uint32_t cp15_opcode,
+ uint32_t arm_opcode)
{
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;
- scan_field_t fields[4];
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ struct arm_jtag *jtag_info;
+ struct scan_field 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_set_end_state(TAP_IDLE);
- arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
+ jtag_info = &arm920t->arm7_9_common.jtag_info;
+
+ retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
buf_set_u32(cp15_opcode_buf, 0, 32, cp15_opcode);
- fields[0].tap = jtag_info->tap;
fields[0].num_bits = 1;
fields[0].out_value = &access_type_buf;
fields[0].in_value = NULL;
- fields[1].tap = jtag_info->tap;
fields[1].num_bits = 32;
fields[1].out_value = cp15_opcode_buf;
fields[1].in_value = NULL;
- fields[2].tap = jtag_info->tap;
fields[2].num_bits = 6;
fields[2].out_value = ®_addr_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, TAP_IDLE);
arm9tdmi_clock_out(jtag_info, arm_opcode, 0, NULL, 0);
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1);
if (retval != ERROR_OK)
return retval;
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
- LOG_ERROR("failed executing JTAG queue, exiting");
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK) {
+ LOG_ERROR("failed executing JTAG queue");
return retval;
}
return ERROR_OK;
}
-int arm920t_read_cp15_interpreted(target_t *target, uint32_t cp15_opcode, uint32_t address, uint32_t *value)
+static int arm920t_read_cp15_interpreted(struct target *target,
+ uint32_t cp15_opcode, uint32_t address, uint32_t *value)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- uint32_t* regs_p[1];
+ struct arm *arm = target_to_arm(target);
+ uint32_t *regs_p[1];
uint32_t regs[2];
uint32_t cp15c15 = 0x0;
+ struct reg *r = arm->core_cache->reg_list;
/* load address into R1 */
regs[1] = address;
/* read-modify-write CP15 test state register
* to enable interpreted access mode */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
+ arm920t_read_cp15_physical(target, CP15PHYS_TESTSTATE, &cp15c15);
jtag_execute_queue();
cp15c15 |= 1; /* set interpret mode */
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, 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);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
/* retrieve value from R0 */
regs_p[0] = value;
jtag_execute_queue();
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
- LOG_DEBUG("cp15_opcode: %8.8x, address: %8.8x, value: %8.8x", cp15_opcode, address, *value);
+ 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)
+ if (!is_arm_mode(arm->core_mode)) {
+ LOG_ERROR("not a valid arm core mode - communication failure?");
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;
+ r[0].dirty = true;
+ r[1].dirty = true;
return ERROR_OK;
}
-int arm920t_write_cp15_interpreted(target_t *target, uint32_t cp15_opcode, uint32_t value, uint32_t address)
+static
+int arm920t_write_cp15_interpreted(struct target *target,
+ uint32_t cp15_opcode, uint32_t value, uint32_t address)
{
uint32_t cp15c15 = 0x0;
- armv4_5_common_t *armv4_5 = target->arch_info;
+ struct arm *arm = target_to_arm(target);
uint32_t regs[2];
+ struct reg *r = arm->core_cache->reg_list;
/* load value, address into R0, R1 */
regs[0] = value;
/* read-modify-write CP15 test state register
* to enable interpreted access mode */
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
+ arm920t_read_cp15_physical(target, CP15PHYS_TESTSTATE, &cp15c15);
jtag_execute_queue();
cp15c15 |= 1; /* set interpret mode */
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
/* execute CP15 instruction and ARM store (writing to coprocessor) */
arm920t_execute_cp15(target, cp15_opcode, ARMV4_5_STR(0, 1));
/* disable interpreted access mode */
cp15c15 &= ~1U; /* set interpret mode */
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
- LOG_DEBUG("cp15_opcode: %8.8x, value: %8.8x, address: %8.8x", cp15_opcode, value, address);
+ 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)
+ if (!is_arm_mode(arm->core_mode)) {
+ LOG_ERROR("not a valid arm core mode - communication failure?");
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;
+ r[0].dirty = true;
+ r[1].dirty = true;
return ERROR_OK;
}
-uint32_t arm920t_get_ttb(target_t *target)
+/* EXPORTED to FA256 */
+int arm920t_get_ttb(struct target *target, uint32_t *result)
{
int retval;
uint32_t ttb = 0x0;
- if ((retval = arm920t_read_cp15_interpreted(target, 0xeebf0f51, 0x0, &ttb)) != ERROR_OK)
+ retval = arm920t_read_cp15_interpreted(target,
+ /* FIXME use opcode macro */
+ 0xeebf0f51, 0x0, &ttb);
+ if (retval != ERROR_OK)
return retval;
- return ttb;
+ *result = ttb;
+ return ERROR_OK;
}
-void arm920t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
+/* EXPORTED to FA256 */
+int arm920t_disable_mmu_caches(struct target *target, int mmu,
+ int d_u_cache, int i_cache)
{
uint32_t cp15_control;
+ int retval;
/* read cp15 control register */
- arm920t_read_cp15_physical(target, 0x2, &cp15_control);
- jtag_execute_queue();
+ retval = arm920t_read_cp15_physical(target, CP15PHYS_CTRL, &cp15_control);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
if (mmu)
cp15_control &= ~0x1U;
if (i_cache)
cp15_control &= ~0x1000U;
- arm920t_write_cp15_physical(target, 0x2, cp15_control);
+ retval = arm920t_write_cp15_physical(target, CP15PHYS_CTRL, cp15_control);
+ return retval;
}
-void arm920t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
+/* EXPORTED to FA256 */
+int arm920t_enable_mmu_caches(struct target *target, int mmu,
+ int d_u_cache, int i_cache)
{
uint32_t cp15_control;
+ int retval;
/* read cp15 control register */
- arm920t_read_cp15_physical(target, 0x2, &cp15_control);
- jtag_execute_queue();
+ retval = arm920t_read_cp15_physical(target, CP15PHYS_CTRL, &cp15_control);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
if (mmu)
cp15_control |= 0x1U;
if (i_cache)
cp15_control |= 0x1000U;
- arm920t_write_cp15_physical(target, 0x2, cp15_control);
+ retval = arm920t_write_cp15_physical(target, CP15PHYS_CTRL, cp15_control);
+ return retval;
}
-void arm920t_post_debug_entry(target_t *target)
+/* EXPORTED to FA256 */
+int arm920t_post_debug_entry(struct target *target)
{
uint32_t cp15c15;
- 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;
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ int retval;
/* examine cp15 control reg */
- arm920t_read_cp15_physical(target, 0x2, &arm920t->cp15_control_reg);
- jtag_execute_queue();
- LOG_DEBUG("cp15_control_reg: %8.8" PRIx32 "", arm920t->cp15_control_reg);
+ retval = arm920t_read_cp15_physical(target,
+ CP15PHYS_CTRL, &arm920t->cp15_control_reg);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("cp15_control_reg: %8.8" PRIx32, arm920t->cp15_control_reg);
- if (arm920t->armv4_5_mmu.armv4_5_cache.ctype == -1)
- {
+ if (arm920t->armv4_5_mmu.armv4_5_cache.ctype == -1) {
uint32_t cache_type_reg;
/* identify caches */
- arm920t_read_cp15_physical(target, 0x1, &cache_type_reg);
- jtag_execute_queue();
- armv4_5_identify_cache(cache_type_reg, &arm920t->armv4_5_mmu.armv4_5_cache);
+ retval = arm920t_read_cp15_physical(target,
+ CP15PHYS_CACHETYPE, &cache_type_reg);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
+ armv4_5_identify_cache(cache_type_reg,
+ &arm920t->armv4_5_mmu.armv4_5_cache);
}
- arm920t->armv4_5_mmu.mmu_enabled = (arm920t->cp15_control_reg & 0x1U) ? 1 : 0;
- arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = (arm920t->cp15_control_reg & 0x4U) ? 1 : 0;
- arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = (arm920t->cp15_control_reg & 0x1000U) ? 1 : 0;
+ arm920t->armv4_5_mmu.mmu_enabled =
+ (arm920t->cp15_control_reg & 0x1U) ? 1 : 0;
+ arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled =
+ (arm920t->cp15_control_reg & 0x4U) ? 1 : 0;
+ 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, 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);
+ /* save i/d fault status and address register
+ * FIXME use opcode macros */
+ retval = arm920t_read_cp15_interpreted(target, 0xee150f10, 0x0, &arm920t->d_fsr);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm920t_read_cp15_interpreted(target, 0xee150f30, 0x0, &arm920t->i_fsr);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm920t_read_cp15_interpreted(target, 0xee160f10, 0x0, &arm920t->d_far);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm920t_read_cp15_interpreted(target, 0xee160f30, 0x0, &arm920t->i_far);
+ if (retval != ERROR_OK)
+ return retval;
- LOG_DEBUG("D FSR: 0x%8.8" PRIx32 ", D FAR: 0x%8.8" PRIx32 ", I FSR: 0x%8.8" PRIx32 ", I FAR: 0x%8.8" PRIx32 "",
+ LOG_DEBUG("D FSR: 0x%8.8" PRIx32 ", D FAR: 0x%8.8" PRIx32
+ ", I FSR: 0x%8.8" PRIx32 ", I FAR: 0x%8.8" PRIx32,
arm920t->d_fsr, arm920t->d_far, arm920t->i_fsr, arm920t->i_far);
- if (arm920t->preserve_cache)
- {
+ 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();
+ retval = arm920t_read_cp15_physical(target,
+ CP15PHYS_TESTSTATE, &cp15c15);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
cp15c15 |= 0x600;
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ retval = arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
+ if (retval != ERROR_OK)
+ return retval;
}
+ return ERROR_OK;
}
-void arm920t_pre_restore_context(target_t *target)
+/* EXPORTED to FA256 */
+void arm920t_pre_restore_context(struct target *target)
{
uint32_t cp15c15;
- 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;
+ struct arm920t_common *arm920t = target_to_arm920(target);
/* restore i/d fault status and address register */
arm920t_write_cp15_interpreted(target, 0xee050f10, arm920t->d_fsr, 0x0);
/* read-modify-write CP15 test state register
* to reenable I/D-cache linefills */
- if (arm920t->preserve_cache)
- {
- arm920t_read_cp15_physical(target, 0x1e, &cp15c15);
+ if (arm920t->preserve_cache) {
+ arm920t_read_cp15_physical(target,
+ CP15PHYS_TESTSTATE, &cp15c15);
jtag_execute_queue();
cp15c15 &= ~0x600U;
- arm920t_write_cp15_physical(target, 0x1e, cp15c15);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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)
-{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9;
- arm9tdmi_common_t *arm9tdmi;
- arm920t_common_t *arm920t;
+static const char arm920_not[] = "target is not an ARM920";
- if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
- {
- return -1;
+static int arm920t_verify_pointer(struct command_context *cmd_ctx,
+ struct arm920t_common *arm920t)
+{
+ if (arm920t->common_magic != ARM920T_COMMON_MAGIC) {
+ command_print(cmd_ctx, arm920_not);
+ return ERROR_TARGET_INVALID;
}
- arm7_9 = armv4_5->arch_info;
- if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC)
- {
- return -1;
- }
+ return ERROR_OK;
+}
- arm9tdmi = arm7_9->arch_info;
- if (arm9tdmi->common_magic != ARM9TDMI_COMMON_MAGIC)
- {
- return -1;
- }
+/** Logs summary of ARM920 state for a halted target. */
+int arm920t_arch_state(struct target *target)
+{
+ static const char *state[] = {
+ "disabled", "enabled"
+ };
- arm920t = arm9tdmi->arch_info;
- if (arm920t->common_magic != ARM920T_COMMON_MAGIC)
- {
- return -1;
+ struct arm920t_common *arm920t = target_to_arm920(target);
+
+ if (arm920t->common_magic != ARM920T_COMMON_MAGIC) {
+ LOG_ERROR("BUG: %s", arm920_not);
+ return ERROR_TARGET_INVALID;
}
- *armv4_5_p = armv4_5;
- *arm7_9_p = arm7_9;
- *arm9tdmi_p = arm9tdmi;
- *arm920t_p = arm920t;
+ arm_arch_state(target);
+ LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s",
+ 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.i_cache_enabled]);
return ERROR_OK;
}
-int arm920t_arch_state(struct target_s *target)
+static int arm920_mmu(struct target *target, int *enabled)
{
- 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[] =
- {
- "disabled", "enabled"
- };
-
- if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
- {
- LOG_ERROR("BUG: called for a non-ARMv4/5 target");
- exit(-1);
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("%s: target not halted", __func__);
+ return ERROR_TARGET_INVALID;
}
- 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),
- 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.i_cache_enabled]);
+ *enabled = target_to_arm920(target)->armv4_5_mmu.mmu_enabled;
+ return ERROR_OK;
+}
+
+static int arm920_virt2phys(struct target *target,
+ target_addr_t virt, target_addr_t *phys)
+{
+ uint32_t cb;
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ uint32_t ret;
+ int retval = armv4_5_mmu_translate_va(target,
+ &arm920t->armv4_5_mmu, virt, &cb, &ret);
+ if (retval != ERROR_OK)
+ return retval;
+ *phys = ret;
return ERROR_OK;
}
-int arm920t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+/** Reads a buffer, in the specified word size, with current MMU settings. */
+int arm920t_read_memory(struct target *target, target_addr_t address,
+ uint32_t size, uint32_t count, uint8_t *buffer)
{
int retval;
}
-int arm920t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+static int arm920t_read_phys_memory(struct target *target,
+ target_addr_t address, uint32_t size,
+ uint32_t count, uint8_t *buffer)
{
- 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;
+ struct arm920t_common *arm920t = target_to_arm920(target);
- return armv4_5_mmu_read_physical(target, &arm920t->armv4_5_mmu, address, size, count, buffer);
+ return armv4_5_mmu_read_physical(target, &arm920t->armv4_5_mmu,
+ address, size, count, buffer);
}
-int arm920t_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+static int arm920t_write_phys_memory(struct target *target,
+ target_addr_t address, uint32_t size,
+ uint32_t count, const uint8_t *buffer)
{
- 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;
+ struct arm920t_common *arm920t = target_to_arm920(target);
- return armv4_5_mmu_write_physical(target, &arm920t->armv4_5_mmu, address, size, count, buffer);
+ return armv4_5_mmu_write_physical(target, &arm920t->armv4_5_mmu,
+ address, size, count, buffer);
}
-
-int arm920t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+/** Writes a buffer, in the specified word size, with current MMU settings. */
+int arm920t_write_memory(struct target *target, target_addr_t address,
+ uint32_t size, uint32_t count, const 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;
+ const uint32_t cache_mask = ~0x1f; /* cache line size : 32 byte */
+ struct arm920t_common *arm920t = target_to_arm920(target);
+
+ /* FIX!!!! this should be cleaned up and made much more general. The
+ * plan is to write up and test on arm920t specifically and
+ * then generalize and clean up afterwards.
+ *
+ * Also it should be moved to the callbacks that handle breakpoints
+ * specifically and not the generic memory write fn's. See XScale code.
+ */
+ if (arm920t->armv4_5_mmu.mmu_enabled && (count == 1) &&
+ ((size == 2) || (size == 4))) {
+ /* special case the handling of single word writes to
+ * bypass MMU, to allow implementation of breakpoints
+ * in memory marked read only
+ * by MMU
+ */
+ uint32_t cb;
+ uint32_t pa;
+
+ /*
+ * We need physical address and cb
+ */
+ retval = armv4_5_mmu_translate_va(target, &arm920t->armv4_5_mmu,
+ address, &cb, &pa);
+ if (retval != ERROR_OK)
+ return retval;
- 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) {
+ if (cb & 0x1) {
+ LOG_DEBUG("D-Cache buffered, "
+ "drain write buffer");
+ /*
+ * Buffered ?
+ * Drain write buffer - MCR p15,0,Rd,c7,c10,4
+ */
+
+ retval = arm920t_write_cp15_interpreted(target,
+ ARMV4_5_MCR(15, 0, 0, 7, 10, 4),
+ 0x0, 0);
+ if (retval != ERROR_OK)
+ return retval;
+ }
- /* This fn is used to write breakpoints, so we need to make sure that the
- * datacache is flushed and the instruction cache is invalidated */
- if (((size == 4) || (size == 2)) && (count == 1))
- {
- if (arm920t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
- {
- LOG_DEBUG("D-Cache enabled, flush and invalidate cache line");
- /* MCR p15,0,Rd,c7,c10,2 */
- retval = arm920t_write_cp15_interpreted(target, 0xee070f5e, 0x0, address);
- if (retval != ERROR_OK)
- return retval;
+ if (cb == 0x3) {
+ /*
+ * Write back memory ? -> clean cache
+ *
+ * There is no way to clean cache lines using
+ * cp15 scan chain, so copy the full cache
+ * line from cache to physical memory.
+ */
+ uint8_t data[32];
+
+ LOG_DEBUG("D-Cache in 'write back' mode, "
+ "flush cache line");
+
+ retval = target_read_memory(target,
+ address & cache_mask, 1,
+ sizeof(data), &data[0]);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = armv4_5_mmu_write_physical(target,
+ &arm920t->armv4_5_mmu,
+ pa & cache_mask, 1,
+ sizeof(data), &data[0]);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ /* Cached ? */
+ if (cb & 0x2) {
+ /*
+ * Cached ? -> Invalidate data cache using MVA
+ *
+ * MCR p15,0,Rd,c7,c6,1
+ */
+ LOG_DEBUG("D-Cache enabled, "
+ "invalidate cache line");
+
+ retval = arm920t_write_cp15_interpreted(target,
+ ARMV4_5_MCR(15, 0, 0, 7, 6, 1), 0x0,
+ address & cache_mask);
+ if (retval != ERROR_OK)
+ return retval;
+ }
}
- if (arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled)
- {
- LOG_DEBUG("I-Cache enabled, invalidating affected I-Cache line");
- retval = arm920t_write_cp15_interpreted(target, 0xee070f35, 0x0, address);
+ /* write directly to physical memory,
+ * bypassing any read only MMU bits, etc.
+ */
+ retval = armv4_5_mmu_write_physical(target,
+ &arm920t->armv4_5_mmu, pa, size,
+ count, buffer);
+ if (retval != ERROR_OK)
+ return retval;
+ } else {
+ retval = arm7_9_write_memory(target, address, size, count, buffer);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ /* If ICache is enabled, we have to invalidate affected ICache lines
+ * the DCache is forced to write-through,
+ * so we don't have to clean it here
+ */
+ if (arm920t->armv4_5_mmu.armv4_5_cache.i_cache_enabled) {
+ if (count <= 1) {
+ /* invalidate ICache single entry with MVA
+ * mcr 15, 0, r0, cr7, cr5, {1}
+ */
+ LOG_DEBUG("I-Cache enabled, "
+ "invalidating affected I-Cache line");
+ retval = arm920t_write_cp15_interpreted(target,
+ ARMV4_5_MCR(15, 0, 0, 7, 5, 1),
+ 0x0, address & cache_mask);
+ if (retval != ERROR_OK)
+ return retval;
+ } else {
+ /* invalidate ICache
+ * mcr 15, 0, r0, cr7, cr5, {0}
+ */
+ retval = arm920t_write_cp15_interpreted(target,
+ ARMV4_5_MCR(15, 0, 0, 7, 5, 0),
+ 0x0, 0x0);
if (retval != ERROR_OK)
return retval;
}
}
- return retval;
+ return ERROR_OK;
}
-int arm920t_soft_reset_halt(struct target_s *target)
+/* EXPORTED to FA256 */
+int arm920t_soft_reset_halt(struct target *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];
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+ struct arm *arm = &arm7_9->arm;
+ struct reg *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
- if ((retval = target_halt(target)) != ERROR_OK)
- {
+ retval = target_halt(target);
+ if (retval != ERROR_OK)
return retval;
- }
- long long then = timeval_ms();
- int timeout;
- while (!(timeout = ((timeval_ms()-then) > 1000)))
- {
- if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
- {
+ int64_t then = timeval_ms();
+ bool timeout;
+ while (!(timeout = ((timeval_ms()-then) > 1000))) {
+ 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)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
} else
- {
break;
- }
- if (debug_level >= 3)
- {
+ if (debug_level >= 3) {
/* do not eat all CPU, time out after 1 se*/
alive_sleep(100);
} else
- {
keep_alive();
- }
}
- if (timeout)
- {
+ 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;
+ 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(arm->cpsr->value, 0, 32);
+ cpsr &= ~0xff;
+ cpsr |= 0xd3;
+ arm_set_cpsr(arm, cpsr);
+ arm->cpsr->dirty = true;
- armv4_5->core_mode = ARMV4_5_MODE_SVC;
- armv4_5->core_state = ARMV4_5_STATE_ARM;
+ /* start fetching from 0x0 */
+ buf_set_u32(arm->pc->value, 0, 32, 0x0);
+ arm->pc->dirty = true;
+ arm->pc->valid = true;
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;
- if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
- {
- return retval;
- }
-
- return ERROR_OK;
+ return target_call_event_callbacks(target, TARGET_EVENT_HALTED);
}
-int arm920t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
+/* FIXME remove forward decls */
+static int arm920t_mrc(struct target *target, int cpnum,
+ uint32_t op1, uint32_t op2,
+ uint32_t CRn, uint32_t CRm,
+ uint32_t *value);
+static int arm920t_mcr(struct target *target, int cpnum,
+ uint32_t op1, uint32_t op2,
+ uint32_t CRn, uint32_t CRm,
+ uint32_t value);
+
+static int arm920t_init_arch_info(struct target *target,
+ struct arm920t_common *arm920t, struct jtag_tap *tap)
{
- arm9tdmi_init_target(cmd_ctx, target);
-
- return ERROR_OK;
-}
+ struct arm7_9_common *arm7_9 = &arm920t->arm7_9_common;
-int arm920t_quit(void)
-{
- return ERROR_OK;
-}
+ arm7_9->arm.mrc = arm920t_mrc;
+ arm7_9->arm.mcr = arm920t_mcr;
-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;
+ /* initialize arm7/arm9 specific info (including armv4_5) */
+ arm9tdmi_init_arch_info(target, arm7_9, tap);
- /* 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;
+ arm7_9->write_memory = arm920t_write_memory;
arm920t->armv4_5_mmu.armv4_5_cache.ctype = -1;
arm920t->armv4_5_mmu.get_ttb = arm920t_get_ttb;
return ERROR_OK;
}
-int arm920t_target_create(struct target_s *target, Jim_Interp *interp)
+static int arm920t_target_create(struct target *target, Jim_Interp *interp)
{
- arm920t_common_t *arm920t = calloc(1,sizeof(arm920t_common_t));
-
- arm920t_init_arch_info(target, arm920t, target->tap);
+ struct arm920t_common *arm920t;
- return ERROR_OK;
+ arm920t = calloc(1, sizeof(struct arm920t_common));
+ return arm920t_init_arch_info(target, arm920t, target->tap);
}
-int arm920t_register_commands(struct command_context_s *cmd_ctx)
-{
- 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, "cp15i", arm920t_handle_cp15i_command, COMMAND_EXEC, "display/modify cp15 (interpreted access) <opcode> [value] [address]");
- register_command(cmd_ctx, arm920t_cmd, "cache_info", arm920t_handle_cache_info_command, COMMAND_EXEC, "display information about target caches");
-
- 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)
+COMMAND_HANDLER(arm920t_handle_read_cache_command)
{
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;
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+ struct arm *arm = &arm7_9->arm;
uint32_t cp15c15;
uint32_t cp15_ctrl, cp15_ctrl_saved;
uint32_t regs[16];
uint32_t 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;
+ int segment, index_t;
+ struct reg *r;
- if (argc != 1)
- {
- command_print(cmd_ctx, "usage: arm920t read_cache <filename>");
- return ERROR_OK;
- }
+ retval = arm920t_verify_pointer(CMD_CTX, arm920t);
+ if (retval != ERROR_OK)
+ return retval;
- if ((output = fopen(args[0], "w")) == NULL)
- {
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ output = fopen(CMD_ARGV[0], "w");
+ if (output == 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)
- {
+ arm920t_read_cp15_physical(target, CP15PHYS_CTRL, &cp15_ctrl);
+ retval = jtag_execute_queue();
+ if (retval != 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);
+ cp15_ctrl &= ~(ARMV4_5_MMU_ENABLED
+ | ARMV4_5_D_U_CACHE_ENABLED | ARMV4_5_I_CACHE_ENABLED);
+ arm920t_write_cp15_physical(target, CP15PHYS_CTRL, cp15_ctrl);
/* read CP15 test state register */
- arm920t_read_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), &cp15c15);
+ arm920t_read_cp15_physical(target, CP15PHYS_TESTSTATE, &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++)
- {
+ 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) */
/* set interpret mode */
cp15c15 |= 0x1;
- arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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));
+ 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);
+ arm920t_read_cp15_physical(target,
+ CP15PHYS_DCACHE_IDX, &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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
+
+ for (index_t = 0; index_t < 64; index_t++) {
+ /* Ra:
+ * r0 = index(31:26):SBZ(25:8):segment(7:5):SBZ(4:0)
+ */
+ regs[0] = 0x0 | (segment << 5) | (index_t << 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write DCache victim */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,0), ARMV4_5_LDR(1, 0));
+ 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));
+ 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));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* read D RAM and CAM content */
arm9tdmi_read_core_regs(target, 0x3fe, regs_p);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != 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%8.8" PRIx32 ", 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%8.8" PRIx32 "\n", i-1, regs[i]);
+ fprintf(output, "\nsegment: %i, index: %i, CAM: 0x%8.8"
+ PRIx32 ", content (%s):\n",
+ segment, index_t, regs[9],
+ (regs[9] & 0x10) ? "valid" : "invalid");
+
+ for (i = 1; i < 9; i++) {
+ fprintf(output, "%i: 0x%8.8" PRIx32 "\n",
+ i-1, regs[i]);
}
}
/* set interpret mode */
cp15c15 |= 0x1;
- arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write DCache victim */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,0), ARMV4_5_LDR(1, 0));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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++)
- {
+ 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) */
/* set interpret mode */
cp15c15 |= 0x1;
- arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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));
+ 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);
+ arm920t_read_cp15_physical(target, CP15PHYS_ICACHE_IDX,
+ &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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
+
+ for (index_t = 0; index_t < 64; index_t++) {
+ /* Ra:
+ * r0 = index(31:26):SBZ(25:8):segment(7:5):SBZ(4:0)
+ */
+ regs[0] = 0x0 | (segment << 5) | (index_t << 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write ICache victim */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,1), ARMV4_5_LDR(1, 0));
+ 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));
+ 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));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* read I RAM and CAM content */
arm9tdmi_read_core_regs(target, 0x3fe, regs_p);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != 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%8.8" PRIx32 ", 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%8.8" PRIx32 "\n", i-1, regs[i]);
+ fprintf(output, "\nsegment: %i, index: %i, "
+ "CAM: 0x%8.8" PRIx32 ", content (%s):\n",
+ segment, index_t, regs[9],
+ (regs[9] & 0x10) ? "valid" : "invalid");
+
+ for (i = 1; i < 9; i++) {
+ fprintf(output, "%i: 0x%8.8" PRIx32 "\n",
+ i-1, regs[i]);
}
}
/* set interpret mode */
cp15c15 |= 0x1;
- arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0xf, 0), cp15c15);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write ICache victim */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,9,1,1), ARMV4_5_LDR(1, 0));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
}
/* restore CP15 MMU and Cache settings */
- arm920t_write_cp15_physical(target, ARM920T_CP15_PHYS_ADDR(0, 0x1, 0), cp15_ctrl_saved);
+ arm920t_write_cp15_physical(target, CP15PHYS_CTRL, cp15_ctrl_saved);
- command_print(cmd_ctx, "cache content successfully output to %s", args[0]);
+ command_print(CMD_CTX, "cache content successfully output to %s",
+ CMD_ARGV[0]);
fclose(output);
- if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+ if (!is_arm_mode(arm->core_mode)) {
+ LOG_ERROR("not a valid arm core mode - communication failure?");
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;
+ /* force writeback of the valid data */
+ r = arm->core_cache->reg_list;
+ r[0].dirty = r[0].valid;
+ r[1].dirty = r[1].valid;
+ r[2].dirty = r[2].valid;
+ r[3].dirty = r[3].valid;
+ r[4].dirty = r[4].valid;
+ r[5].dirty = r[5].valid;
+ r[6].dirty = r[6].valid;
+ r[7].dirty = r[7].valid;
+
+ r = arm_reg_current(arm, 8);
+ r->dirty = r->valid;
+
+ r = arm_reg_current(arm, 9);
+ r->dirty = r->valid;
return ERROR_OK;
}
-int arm920t_handle_read_mmu_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(arm920t_handle_read_mmu_command)
{
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;
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm920t_common *arm920t = target_to_arm920(target);
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+ struct arm *arm = &arm7_9->arm;
uint32_t cp15c15;
uint32_t cp15_ctrl, cp15_ctrl_saved;
uint32_t regs[16];
int i;
FILE *output;
uint32_t Dlockdown, Ilockdown;
- arm920t_tlb_entry_t d_tlb[64], i_tlb[64];
+ struct arm920t_tlb_entry d_tlb[64], i_tlb[64];
int victim;
+ struct reg *r;
- if (argc != 1)
- {
- command_print(cmd_ctx, "usage: arm920t read_mmu <filename>");
- return ERROR_OK;
- }
+ retval = arm920t_verify_pointer(CMD_CTX, arm920t);
+ if (retval != ERROR_OK)
+ return retval;
- if ((output = fopen(args[0], "w")) == NULL)
- {
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ output = fopen(CMD_ARGV[0], "w");
+ if (output == 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)
- {
+ arm920t_read_cp15_physical(target, CP15PHYS_CTRL, &cp15_ctrl);
+ retval = jtag_execute_queue();
+ if (retval != 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);
+ cp15_ctrl &= ~(ARMV4_5_MMU_ENABLED
+ | ARMV4_5_D_U_CACHE_ENABLED | ARMV4_5_I_CACHE_ENABLED);
+ arm920t_write_cp15_physical(target, CP15PHYS_CTRL, 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)
- {
+ arm920t_read_cp15_physical(target, CP15PHYS_TESTSTATE, &cp15c15);
+ retval = jtag_execute_queue();
+ if (retval != 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);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
/* Read D TLB lockdown */
- arm920t_execute_cp15(target, ARMV4_5_MRC(15,0,0,10,0,0), ARMV4_5_LDR(1, 0));
+ 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);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
/* read D TLB lockdown stored to r1 */
arm9tdmi_read_core_regs(target, 0x2, regs_p);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
Dlockdown = regs[1];
- for (victim = 0; victim < 64; victim += 8)
- {
+ 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 */
+ * 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write D TLB lockdown */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,0), ARMV4_5_STR(1, 0));
+ 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));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
for (i = 0; i < 8; i++)
d_tlb[victim + i].cam = regs[i + 2];
}
- for (victim = 0; victim < 64; victim++)
- {
+ 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 */
+ * 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write D TLB lockdown */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,0), ARMV4_5_STR(1, 0));
+ 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));
+ 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));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
d_tlb[victim].ram1 = regs[2];
d_tlb[victim].ram2 = regs[3];
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));
+ 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);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
/* Read I TLB lockdown */
- arm920t_execute_cp15(target, ARMV4_5_MRC(15,0,0,10,0,1), ARMV4_5_LDR(1, 0));
+ 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);
+ arm920t_write_cp15_physical(target, CP15PHYS_TESTSTATE, cp15c15);
/* read I TLB lockdown stored to r1 */
arm9tdmi_read_core_regs(target, 0x2, regs_p);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
Ilockdown = regs[1];
- for (victim = 0; victim < 64; victim += 8)
- {
+ 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 */
+ * 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write I TLB lockdown */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,1), ARMV4_5_STR(1, 0));
+ 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));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
for (i = 0; i < 8; i++)
i_tlb[i + victim].cam = regs[i + 2];
}
- for (victim = 0; victim < 64; victim++)
- {
+ 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 */
+ * 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, cp15c15);
/* Write I TLB lockdown */
- arm920t_execute_cp15(target, ARMV4_5_MCR(15,0,0,10,0,1), ARMV4_5_STR(1, 0));
+ 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));
+ 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));
+ 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);
+ arm920t_write_cp15_physical(target,
+ CP15PHYS_TESTSTATE, 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)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
i_tlb[victim].ram1 = regs[2];
i_tlb[victim].ram2 = regs[3];
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));
+ 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);
+ arm920t_write_cp15_physical(target, CP15PHYS_CTRL, cp15_ctrl_saved);
/* output data to file */
fprintf(output, "D TLB content:\n");
- for (i = 0; i < 64; i++)
- {
- fprintf(output, "%i: 0x%8.8" PRIx32 " 0x%8.8" PRIx32 " 0x%8.8" PRIx32 " %s\n", i, d_tlb[i].cam, d_tlb[i].ram1, d_tlb[i].ram2, (d_tlb[i].cam & 0x20) ? "(valid)" : "(invalid)");
+ for (i = 0; i < 64; i++) {
+ fprintf(output, "%i: 0x%8.8" PRIx32 " 0x%8.8" PRIx32
+ " 0x%8.8" PRIx32 " %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%8.8" PRIx32 " 0x%8.8" PRIx32 " 0x%8.8" PRIx32 " %s\n", i, i_tlb[i].cam, i_tlb[i].ram1, i_tlb[i].ram2, (i_tlb[i].cam & 0x20) ? "(valid)" : "(invalid)");
+ for (i = 0; i < 64; i++) {
+ fprintf(output, "%i: 0x%8.8" PRIx32 " 0x%8.8" PRIx32
+ " 0x%8.8" PRIx32 " %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]);
+ command_print(CMD_CTX, "mmu content successfully output to %s",
+ CMD_ARGV[0]);
fclose(output);
- if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+ if (!is_arm_mode(arm->core_mode)) {
+ LOG_ERROR("not a valid arm core mode - communication failure?");
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;
+ /* force writeback of the valid data */
+ r = arm->core_cache->reg_list;
+ r[0].dirty = r[0].valid;
+ r[1].dirty = r[1].valid;
+ r[2].dirty = r[2].valid;
+ r[3].dirty = r[3].valid;
+ r[4].dirty = r[4].valid;
+ r[5].dirty = r[5].valid;
+ r[6].dirty = r[6].valid;
+ r[7].dirty = r[7].valid;
+
+ r = arm_reg_current(arm, 8);
+ r->dirty = r->valid;
+
+ r = arm_reg_current(arm, 9);
+ r->dirty = r->valid;
return ERROR_OK;
}
-int arm920t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+
+COMMAND_HANDLER(arm920t_handle_cp15_command)
{
int retval;
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm9tdmi_common_t *arm9tdmi;
- arm920t_common_t *arm920t;
- arm_jtag_t *jtag_info;
-
- 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;
- }
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm920t_common *arm920t = target_to_arm920(target);
- jtag_info = &arm7_9->jtag_info;
+ retval = arm920t_verify_pointer(CMD_CTX, arm920t);
+ if (retval != ERROR_OK)
+ return retval;
- if (target->state != TARGET_HALTED)
- {
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
+ if (target->state != TARGET_HALTED) {
+ command_print(CMD_CTX, "target must be stopped for "
+ "\"%s\" command", CMD_NAME);
return ERROR_OK;
}
- /* one or more argument, access a single register (write if second argument is given */
- if (argc >= 1)
- {
- int address = strtoul(args[0], NULL, 0);
+ /* one argument, read a register.
+ * two arguments, write it.
+ */
+ if (CMD_ARGC >= 1) {
+ int address;
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], address);
- if (argc == 1)
- {
+ if (CMD_ARGC == 1) {
uint32_t value;
- if ((retval = arm920t_read_cp15_physical(target, address, &value)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't access reg %i", address);
+ retval = arm920t_read_cp15_physical(target, address, &value);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX,
+ "couldn't access reg %i", address);
return ERROR_OK;
}
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
- command_print(cmd_ctx, "%i: %8.8" PRIx32 "", address, value);
- }
- else if (argc == 2)
- {
- uint32_t value = strtoul(args[1], NULL, 0);
- if ((retval = arm920t_write_cp15_physical(target, address, value)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't access reg %i", address);
+ command_print(CMD_CTX, "%i: %8.8" PRIx32,
+ address, value);
+ } else if (CMD_ARGC == 2) {
+ uint32_t value;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
+ retval = arm920t_write_cp15_physical(target,
+ address, value);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX,
+ "couldn't access reg %i", address);
+ /* REVISIT why lie? "return retval"? */
return ERROR_OK;
}
- command_print(cmd_ctx, "%i: %8.8" PRIx32 "", address, value);
+ command_print(CMD_CTX, "%i: %8.8" PRIx32,
+ address, value);
}
}
return ERROR_OK;
}
-int arm920t_handle_cp15i_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(arm920t_handle_cp15i_command)
{
int retval;
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm9tdmi_common_t *arm9tdmi;
- arm920t_common_t *arm920t;
- arm_jtag_t *jtag_info;
-
- 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;
- }
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm920t_common *arm920t = target_to_arm920(target);
- jtag_info = &arm7_9->jtag_info;
+ retval = arm920t_verify_pointer(CMD_CTX, arm920t);
+ if (retval != ERROR_OK)
+ return retval;
- if (target->state != TARGET_HALTED)
- {
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
+
+ if (target->state != TARGET_HALTED) {
+ command_print(CMD_CTX, "target must be stopped for "
+ "\"%s\" command", CMD_NAME);
return ERROR_OK;
}
- /* one or more argument, access a single register (write if second argument is given */
- if (argc >= 1)
- {
- uint32_t opcode = strtoul(args[0], NULL, 0);
+ /* one argument, read a register.
+ * two arguments, write it.
+ */
+ if (CMD_ARGC >= 1) {
+ uint32_t opcode;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], opcode);
- if (argc == 1)
- {
+ if (CMD_ARGC == 1) {
uint32_t value;
- if ((retval = arm920t_read_cp15_interpreted(target, opcode, 0x0, &value)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't execute %8.8" PRIx32 "", opcode);
+ retval = arm920t_read_cp15_interpreted(target,
+ opcode, 0x0, &value);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX,
+ "couldn't execute %8.8" PRIx32,
+ opcode);
+ /* REVISIT why lie? "return retval"? */
return ERROR_OK;
}
- command_print(cmd_ctx, "%8.8" PRIx32 ": %8.8" PRIx32 "", opcode, value);
- }
- else if (argc == 2)
- {
- uint32_t value = strtoul(args[1], NULL, 0);
- if ((retval = arm920t_write_cp15_interpreted(target, opcode, value, 0)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't execute %8.8" PRIx32 "", opcode);
+ command_print(CMD_CTX, "%8.8" PRIx32 ": %8.8" PRIx32,
+ opcode, value);
+ } else if (CMD_ARGC == 2) {
+ uint32_t value;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
+ retval = arm920t_write_cp15_interpreted(target,
+ opcode, value, 0);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX,
+ "couldn't execute %8.8" PRIx32,
+ opcode);
+ /* REVISIT why lie? "return retval"? */
return ERROR_OK;
}
- command_print(cmd_ctx, "%8.8" PRIx32 ": %8.8" PRIx32 "", opcode, value);
- }
- else if (argc == 3)
- {
- uint32_t value = strtoul(args[1], NULL, 0);
- uint32_t address = strtoul(args[2], NULL, 0);
- if ((retval = arm920t_write_cp15_interpreted(target, opcode, value, address)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't execute %8.8" PRIx32 "", opcode);
+ command_print(CMD_CTX, "%8.8" PRIx32 ": %8.8" PRIx32,
+ opcode, value);
+ } else if (CMD_ARGC == 3) {
+ uint32_t value;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
+ uint32_t address;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], address);
+ retval = arm920t_write_cp15_interpreted(target,
+ opcode, value, address);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX,
+ "couldn't execute %8.8" PRIx32, opcode);
+ /* REVISIT why lie? "return retval"? */
return ERROR_OK;
}
- command_print(cmd_ctx, "%8.8" PRIx32 ": %8.8" PRIx32 " %8.8" PRIx32 "", opcode, value, address);
+ command_print(CMD_CTX, "%8.8" PRIx32 ": %8.8" PRIx32
+ " %8.8" PRIx32, opcode, value, address);
}
- }
- else
- {
- command_print(cmd_ctx, "usage: arm920t cp15i <opcode> [value] [address]");
- }
+ } else
+ return ERROR_COMMAND_SYNTAX_ERROR;
return ERROR_OK;
}
-int arm920t_handle_cache_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(arm920t_handle_cache_info_command)
{
- 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;
+ int retval;
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm920t_common *arm920t = target_to_arm920(target);
- 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;
+ retval = arm920t_verify_pointer(CMD_CTX, arm920t);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return armv4_5_handle_cache_info_command(CMD_CTX,
+ &arm920t->armv4_5_mmu.armv4_5_cache);
+}
+
+
+static int arm920t_mrc(struct target *target, int cpnum,
+ uint32_t op1, uint32_t op2,
+ uint32_t CRn, uint32_t CRm,
+ uint32_t *value)
+{
+ if (cpnum != 15) {
+ LOG_ERROR("Only cp15 is supported");
+ return ERROR_FAIL;
+ }
+
+ /* read "to" r0 */
+ return arm920t_read_cp15_interpreted(target,
+ ARMV4_5_MRC(cpnum, op1, 0, CRn, CRm, op2),
+ 0, value);
+}
+
+static int arm920t_mcr(struct target *target, int cpnum,
+ uint32_t op1, uint32_t op2,
+ uint32_t CRn, uint32_t CRm,
+ uint32_t value)
+{
+ if (cpnum != 15) {
+ LOG_ERROR("Only cp15 is supported");
+ return ERROR_FAIL;
}
- return armv4_5_handle_cache_info_command(cmd_ctx, &arm920t->armv4_5_mmu.armv4_5_cache);
+ /* write "from" r0 */
+ return arm920t_write_cp15_interpreted(target,
+ ARMV4_5_MCR(cpnum, op1, 0, CRn, CRm, op2),
+ 0, value);
}
+
+static const struct command_registration arm920t_exec_command_handlers[] = {
+ {
+ .name = "cp15",
+ .handler = arm920t_handle_cp15_command,
+ .mode = COMMAND_EXEC,
+ .help = "display/modify cp15 register",
+ .usage = "regnum [value]",
+ },
+ {
+ .name = "cp15i",
+ .handler = arm920t_handle_cp15i_command,
+ .mode = COMMAND_EXEC,
+ /* prefer using less error-prone "arm mcr" or "arm mrc" */
+ .help = "display/modify cp15 register using ARM opcode"
+ " (DEPRECATED)",
+ .usage = "instruction [value [address]]",
+ },
+ {
+ .name = "cache_info",
+ .handler = arm920t_handle_cache_info_command,
+ .mode = COMMAND_EXEC,
+ .usage = "",
+ .help = "display information about target caches",
+ },
+ {
+ .name = "read_cache",
+ .handler = arm920t_handle_read_cache_command,
+ .mode = COMMAND_EXEC,
+ .help = "dump I/D cache content to file",
+ .usage = "filename",
+ },
+ {
+ .name = "read_mmu",
+ .handler = arm920t_handle_read_mmu_command,
+ .mode = COMMAND_EXEC,
+ .help = "dump I/D mmu content to file",
+ .usage = "filename",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+const struct command_registration arm920t_command_handlers[] = {
+ {
+ .chain = arm9tdmi_command_handlers,
+ },
+ {
+ .name = "arm920t",
+ .mode = COMMAND_ANY,
+ .help = "arm920t command group",
+ .usage = "",
+ .chain = arm920t_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+/** Holds methods for ARM920 targets. */
+struct target_type 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_arch = arm_get_gdb_arch,
+ .get_gdb_reg_list = arm_get_gdb_reg_list,
+
+ .read_memory = arm920t_read_memory,
+ .write_memory = arm7_9_write_memory_opt,
+ .read_phys_memory = arm920t_read_phys_memory,
+ .write_phys_memory = arm920t_write_phys_memory,
+ .mmu = arm920_mmu,
+ .virt2phys = arm920_virt2phys,
+
+ .checksum_memory = arm_checksum_memory,
+ .blank_check_memory = arm_blank_check_memory,
+
+ .run_algorithm = armv4_5_run_algorithm,
+
+ .add_breakpoint = arm7_9_add_breakpoint,
+ .remove_breakpoint = arm7_9_remove_breakpoint,
+ .add_watchpoint = arm7_9_add_watchpoint,
+ .remove_watchpoint = arm7_9_remove_watchpoint,
+
+ .commands = arm920t_command_handlers,
+ .target_create = arm920t_target_create,
+ .init_target = arm9tdmi_init_target,
+ .examine = arm7_9_examine,
+ .check_reset = arm7_9_check_reset,
+};
Code Review / openocd.git / blobdiff