- change signature for adi_jtag_dp_scan and adi_jtag_dp_scan_u32 to use swjdp_common_...
[openocd.git] / src / target / arm11.c
index d152880e6d7ac12763ee4e75c3999b778a547f5f..e4f53f1a7fc533e502efd7d5902e380c5b86e317 100644 (file)
@@ -1,5 +1,6 @@
 /***************************************************************************
  *   Copyright (C) 2008 digenius technology GmbH.                          *
+ *   Michael Bruck                                                         *
  *                                                                         *
  *   Copyright (C) 2008 Oyvind Harboe oyvind.harboe@zylin.com              *
  *                                                                         *
 #endif
 
 #include "arm11.h"
-#include "jtag.h"
-#include "log.h"
+#include "target_type.h"
 
-#include <stdlib.h>
-#include <string.h>
 
 #if 0
 #define _DEBUG_INSTRUCTION_EXECUTION_
@@ -48,7 +46,7 @@
 #define FNC_INFO_NOTIMPLEMENTED
 #endif
 
-static void arm11_on_enter_debug_state(arm11_common_t * arm11);
+static int arm11_on_enter_debug_state(arm11_common_t * arm11);
 
 bool   arm11_config_memwrite_burst                             = true;
 bool   arm11_config_memwrite_error_fatal               = true;
@@ -313,7 +311,7 @@ reg_t arm11_gdb_dummy_fps_reg =
  *                                     available a pointer to a word holding the
  *                                     DSCR can be passed. Otherwise use NULL.
  */
-void arm11_check_init(arm11_common_t * arm11, u32 * dscr)
+int arm11_check_init(arm11_common_t * arm11, u32 * dscr)
 {
        FNC_INFO;
 
@@ -322,7 +320,8 @@ void arm11_check_init(arm11_common_t * arm11, u32 * dscr)
        if (!dscr)
        {
                dscr = &dscr_local_tmp_copy;
-               *dscr = arm11_read_DSCR(arm11);
+
+               CHECK_RETVAL(arm11_read_DSCR(arm11, dscr));
        }
 
        if (!(*dscr & ARM11_DSCR_MODE_SELECT))
@@ -339,7 +338,9 @@ void arm11_check_init(arm11_common_t * arm11, u32 * dscr)
                if (*dscr & ARM11_DSCR_CORE_HALTED)
                {
                        /** \todo TODO: this needs further scrutiny because
-                         * arm11_on_enter_debug_state() never gets properly called
+                         * arm11_on_enter_debug_state() never gets properly called.
+                         * As a result we don't read the actual register states from
+                         * the target.
                          */
 
                        arm11->target->state    = TARGET_HALTED;
@@ -353,6 +354,8 @@ void arm11_check_init(arm11_common_t * arm11, u32 * dscr)
 
                arm11_sc7_clear_vbw(arm11);
        }
+
+       return ERROR_OK;
 }
 
 
@@ -366,20 +369,18 @@ void arm11_check_init(arm11_common_t * arm11, u32 * dscr)
   * or on other occasions that stop the processor.
   *
   */
-static void arm11_on_enter_debug_state(arm11_common_t * arm11)
+static int arm11_on_enter_debug_state(arm11_common_t * arm11)
 {
        FNC_INFO;
 
-       {size_t i;
-       for(i = 0; i < asizeof(arm11->reg_values); i++)
+       for (size_t i = 0; i < asizeof(arm11->reg_values); i++)
        {
                arm11->reg_list[i].valid        = 1;
                arm11->reg_list[i].dirty        = 0;
-       }}
+       }
 
        /* Save DSCR */
-
-       R(DSCR) = arm11_read_DSCR(arm11);
+       CHECK_RETVAL(arm11_read_DSCR(arm11, &R(DSCR)));
 
        /* Save wDTR */
 
@@ -392,8 +393,8 @@ static void arm11_on_enter_debug_state(arm11_common_t * arm11)
                scan_field_t    chain5_fields[3];
 
                arm11_setup_field(arm11, 32, NULL, &R(WDTR),    chain5_fields + 0);
-               arm11_setup_field(arm11,  1, NULL, NULL,        chain5_fields + 1);
-               arm11_setup_field(arm11,  1, NULL, NULL,        chain5_fields + 2);
+               arm11_setup_field(arm11,  1, NULL, NULL,                chain5_fields + 1);
+               arm11_setup_field(arm11,  1, NULL, NULL,                chain5_fields + 2);
 
                arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
        }
@@ -452,12 +453,11 @@ static void arm11_on_enter_debug_state(arm11_common_t * arm11)
 
        /** \todo TODO: handle other mode registers */
 
-       {size_t i;
-       for (i = 0; i < 15; i++)
+       for (size_t i = 0; i < 15; i++)
        {
                /* MCR p14,0,R?,c0,c5,0 */
                arm11_run_instr_data_from_core(arm11, 0xEE000E15 | (i << 12), &R(RX + i), 1);
-       }}
+       }
 
        /* save rDTR */
 
@@ -514,31 +514,38 @@ static void arm11_on_enter_debug_state(arm11_common_t * arm11)
        arm11_run_instr_data_finish(arm11);
 
        arm11_dump_reg_changes(arm11);
+
+       return ERROR_OK;
 }
 
 void arm11_dump_reg_changes(arm11_common_t * arm11)
 {
-       {size_t i;
-       for(i = 0; i < ARM11_REGCACHE_COUNT; i++)
+
+       if (!(debug_level >= LOG_LVL_DEBUG))
+       {
+               return;
+       }
+
+       for (size_t i = 0; i < ARM11_REGCACHE_COUNT; i++)
        {
                if (!arm11->reg_list[i].valid)
                {
                        if (arm11->reg_history[i].valid)
-                               LOG_INFO("%8s INVALID    (%08x)", arm11_reg_defs[i].name, arm11->reg_history[i].value);
+                               LOG_DEBUG("%8s INVALID   (%08x)", arm11_reg_defs[i].name, arm11->reg_history[i].value);
                }
                else
                {
                        if (arm11->reg_history[i].valid)
                        {
                                if (arm11->reg_history[i].value != arm11->reg_values[i])
-                                       LOG_INFO("%8s %08x (%08x)", arm11_reg_defs[i].name, arm11->reg_values[i], arm11->reg_history[i].value);
+                                       LOG_DEBUG("%8s %08x (%08x)", arm11_reg_defs[i].name, arm11->reg_values[i], arm11->reg_history[i].value);
                        }
                        else
                        {
-                               LOG_INFO("%8s %08x (INVALID)", arm11_reg_defs[i].name, arm11->reg_values[i]);
+                               LOG_DEBUG("%8s %08x (INVALID)", arm11_reg_defs[i].name, arm11->reg_values[i]);
                        }
                }
-       }}
+       }
 }
 
 /** Restore processor state
@@ -546,7 +553,7 @@ void arm11_dump_reg_changes(arm11_common_t * arm11)
   * This is called in preparation for the RESTART function.
   *
   */
-void arm11_leave_debug_state(arm11_common_t * arm11)
+int arm11_leave_debug_state(arm11_common_t * arm11)
 {
        FNC_INFO;
 
@@ -555,8 +562,8 @@ void arm11_leave_debug_state(arm11_common_t * arm11)
        /** \todo TODO: handle other mode registers */
 
        /* restore R1 - R14 */
-       {size_t i;
-       for (i = 1; i < 15; i++)
+
+       for (size_t i = 1; i < 15; i++)
        {
                if (!arm11->reg_list[ARM11_RC_RX + i].dirty)
                        continue;
@@ -565,14 +572,16 @@ void arm11_leave_debug_state(arm11_common_t * arm11)
                arm11_run_instr_data_to_core1(arm11, 0xee100e15 | (i << 12), R(RX + i));
 
                //      LOG_DEBUG("RESTORE R" ZU " %08x", i, R(RX + i));
-       }}
+       }
 
        arm11_run_instr_data_finish(arm11);
 
        /* spec says clear wDTR and rDTR; we assume they are clear as
           otherwise our programming would be sloppy */
        {
-               u32 DSCR = arm11_read_DSCR(arm11);
+               u32 DSCR;
+
+               CHECK_RETVAL(arm11_read_DSCR(arm11, &DSCR));
 
                if (DSCR & (ARM11_DSCR_RDTR_FULL | ARM11_DSCR_WDTR_FULL))
                {
@@ -632,19 +641,20 @@ void arm11_leave_debug_state(arm11_common_t * arm11)
        }
 
        arm11_record_register_history(arm11);
+
+       return ERROR_OK;
 }
 
 void arm11_record_register_history(arm11_common_t * arm11)
 {
-       {size_t i;
-       for(i = 0; i < ARM11_REGCACHE_COUNT; i++)
+       for (size_t i = 0; i < ARM11_REGCACHE_COUNT; i++)
        {
                arm11->reg_history[i].value     = arm11->reg_values[i];
                arm11->reg_history[i].valid     = arm11->reg_list[i].valid;
 
                arm11->reg_list[i].valid        = 0;
                arm11->reg_list[i].dirty        = 0;
-       }}
+       }
 }
 
 
@@ -658,11 +668,13 @@ int arm11_poll(struct target_s *target)
        if (arm11->trst_active)
                return ERROR_OK;
 
-       u32     dscr = arm11_read_DSCR(arm11);
+       u32     dscr;
+
+       CHECK_RETVAL(arm11_read_DSCR(arm11, &dscr));
 
        LOG_DEBUG("DSCR %08x", dscr);
 
-       arm11_check_init(arm11, &dscr);
+       CHECK_RETVAL(arm11_check_init(arm11, &dscr));
 
        if (dscr & ARM11_DSCR_CORE_HALTED)
        {
@@ -671,7 +683,7 @@ int arm11_poll(struct target_s *target)
                        enum target_state old_state = target->state;
 
                        LOG_DEBUG("enter TARGET_HALTED");
-                       target->state           = TARGET_HALTED;
+                       target->state                   = TARGET_HALTED;
                        target->debug_reason    = arm11_get_DSCR_debug_reason(dscr);
                        arm11_on_enter_debug_state(arm11);
 
@@ -684,7 +696,7 @@ int arm11_poll(struct target_s *target)
                if (target->state != TARGET_RUNNING && target->state != TARGET_DEBUG_RUNNING)
                {
                        LOG_DEBUG("enter TARGET_RUNNING");
-                       target->state           = TARGET_RUNNING;
+                       target->state                   = TARGET_RUNNING;
                        target->debug_reason    = DBG_REASON_NOTHALTED;
                }
        }
@@ -694,7 +706,12 @@ int arm11_poll(struct target_s *target)
 /* architecture specific status reply */
 int arm11_arch_state(struct target_s *target)
 {
-       FNC_INFO_NOTIMPLEMENTED;
+       arm11_common_t * arm11 = target->arch_info;
+
+       LOG_USER("target halted due to %s\ncpsr: 0x%8.8x pc: 0x%8.8x",
+                        Jim_Nvp_value2name_simple( nvp_target_debug_reason, target->debug_reason )->name,
+                        R(CPSR),
+                        R(PC));
 
        return ERROR_OK;
 }
@@ -710,8 +727,6 @@ int arm11_target_request_data(struct target_s *target, u32 size, u8 *buffer)
 /* target execution control */
 int arm11_halt(struct target_s *target)
 {
-       int retval = ERROR_OK;
-
        FNC_INFO;
 
        arm11_common_t * arm11 = target->arch_info;
@@ -738,16 +753,13 @@ int arm11_halt(struct target_s *target)
 
        arm11_add_IR(arm11, ARM11_HALT, TAP_IDLE);
 
-       if((retval = jtag_execute_queue()) != ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(jtag_execute_queue());
 
        u32 dscr;
 
        while (1)
        {
-               dscr = arm11_read_DSCR(arm11);
+               CHECK_RETVAL(arm11_read_DSCR(arm11, &dscr));
 
                if (dscr & ARM11_DSCR_CORE_HALTED)
                        break;
@@ -760,21 +772,17 @@ int arm11_halt(struct target_s *target)
        target->state           = TARGET_HALTED;
        target->debug_reason    = arm11_get_DSCR_debug_reason(dscr);
 
-       if((retval = target_call_event_callbacks(target,
-               old_state == TARGET_DEBUG_RUNNING ? TARGET_EVENT_DEBUG_HALTED : TARGET_EVENT_HALTED)) != ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(
+               target_call_event_callbacks(target,
+                       old_state == TARGET_DEBUG_RUNNING ? TARGET_EVENT_DEBUG_HALTED : TARGET_EVENT_HALTED));
 
        return ERROR_OK;
 }
 
 int arm11_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
 {
-       int retval = ERROR_OK;
-
        FNC_INFO;
-       
+
        //        LOG_DEBUG("current %d  address %08x  handle_breakpoints %d  debug_execution %d",
        //      current, address, handle_breakpoints, debug_execution);
 
@@ -793,7 +801,7 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
        if (!current)
                R(PC) = address;
 
-       LOG_INFO("RESUME PC %08x%s", R(PC), !current ? "!" : "");
+       LOG_DEBUG("RESUME PC %08x%s", R(PC), !current ? "!" : "");
 
        /* clear breakpoints/watchpoints and VCR*/
        arm11_sc7_clear_vbw(arm11);
@@ -844,14 +852,13 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
 
        arm11_add_IR(arm11, ARM11_RESTART, TAP_IDLE);
 
-       if((retval = jtag_execute_queue()) != ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(jtag_execute_queue());
 
        while (1)
        {
-               u32 dscr = arm11_read_DSCR(arm11);
+               u32 dscr;
+
+               CHECK_RETVAL(arm11_read_DSCR(arm11, &dscr));
 
                LOG_DEBUG("DSCR %08x", dscr);
 
@@ -864,19 +871,14 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
                target->state                   = TARGET_RUNNING;
                target->debug_reason    = DBG_REASON_NOTHALTED;
 
-               if((retval = target_call_event_callbacks(target, TARGET_EVENT_RESUMED)) != ERROR_OK)
-               {
-                       return retval;
-               }
+               CHECK_RETVAL(target_call_event_callbacks(target, TARGET_EVENT_RESUMED));
        }
        else
        {
                target->state                   = TARGET_DEBUG_RUNNING;
                target->debug_reason    = DBG_REASON_NOTHALTED;
-               if((retval = target_call_event_callbacks(target, TARGET_EVENT_RESUMED)) != ERROR_OK)
-               {
-                       return retval;
-               }
+
+               CHECK_RETVAL(target_call_event_callbacks(target, TARGET_EVENT_RESUMED));
        }
 
        return ERROR_OK;
@@ -884,8 +886,6 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
 
 int arm11_step(struct target_s *target, int current, u32 address, int handle_breakpoints)
 {
-       int retval = ERROR_OK;
-
        FNC_INFO;
 
        LOG_DEBUG("target->state: %s",
@@ -902,13 +902,13 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
        if (!current)
                R(PC) = address;
 
-       LOG_INFO("STEP PC %08x%s", R(PC), !current ? "!" : "");
+       LOG_DEBUG("STEP PC %08x%s", R(PC), !current ? "!" : "");
 
        /** \todo TODO: Thumb not supported here */
 
        u32     next_instruction;
 
-       arm11_read_memory_word(arm11, R(PC), &next_instruction);
+       CHECK_RETVAL(arm11_read_memory_word(arm11, R(PC), &next_instruction));
 
        /* skip over BKPT */
        if ((next_instruction & 0xFFF00070) == 0xe1200070)
@@ -916,7 +916,7 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
                R(PC) += 4;
                arm11->reg_list[ARM11_RC_PC].valid = 1;
                arm11->reg_list[ARM11_RC_PC].dirty = 0;
-               LOG_INFO("Skipping BKPT");
+               LOG_DEBUG("Skipping BKPT");
        }
        /* skip over Wait for interrupt / Standby */
        /* mcr  15, 0, r?, cr7, cr0, {4} */
@@ -925,12 +925,12 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
                R(PC) += 4;
                arm11->reg_list[ARM11_RC_PC].valid = 1;
                arm11->reg_list[ARM11_RC_PC].dirty = 0;
-               LOG_INFO("Skipping WFI");
+               LOG_DEBUG("Skipping WFI");
        }
        /* ignore B to self */
        else if ((next_instruction & 0xFEFFFFFF) == 0xeafffffe)
        {
-               LOG_INFO("Not stepping jump to self");
+               LOG_DEBUG("Not stepping jump to self");
        }
        else
        {
@@ -952,7 +952,7 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
                brp[1].address  = ARM11_SC7_BCR0;
                brp[1].value    = 0x1 | (3 << 1) | (0x0F << 5) | (0 << 14) | (0 << 16) | (0 << 20) | (2 << 21);
 
-               arm11_sc7_run(arm11, brp, asizeof(brp));
+               CHECK_RETVAL(arm11_sc7_run(arm11, brp, asizeof(brp)));
 
                /* resume */
 
@@ -961,16 +961,13 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
                        R(DSCR) &= ~ARM11_DSCR_INTERRUPTS_DISABLE;              /* should be redundant */
                else
                        R(DSCR) |= ARM11_DSCR_INTERRUPTS_DISABLE;
-                       
 
-               arm11_leave_debug_state(arm11);
+
+               CHECK_RETVAL(arm11_leave_debug_state(arm11));
 
                arm11_add_IR(arm11, ARM11_RESTART, TAP_IDLE);
 
-               if((retval = jtag_execute_queue()) != ERROR_OK)
-               {
-                       return retval;
-               }
+               CHECK_RETVAL(jtag_execute_queue());
 
                /** \todo TODO: add a timeout */
 
@@ -978,7 +975,9 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
 
                while (1)
                {
-                       u32 dscr = arm11_read_DSCR(arm11);
+                       u32 dscr;
+
+                       CHECK_RETVAL(arm11_read_DSCR(arm11, &dscr));
 
                        LOG_DEBUG("DSCR %08x", dscr);
 
@@ -991,7 +990,7 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
                arm11_sc7_clear_vbw(arm11);
 
                /* save state */
-               arm11_on_enter_debug_state(arm11);
+               CHECK_RETVAL(arm11_on_enter_debug_state(arm11));
 
            /* restore default state */
                R(DSCR) &= ~ARM11_DSCR_INTERRUPTS_DISABLE;
@@ -1001,10 +1000,7 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
        //        target->state         = TARGET_HALTED;
        target->debug_reason    = DBG_REASON_SINGLESTEP;
 
-       if((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(target_call_event_callbacks(target, TARGET_EVENT_HALTED));
 
        return ERROR_OK;
 }
@@ -1027,9 +1023,7 @@ int arm11_assert_reset(struct target_s *target)
 
        if (target->reset_halt)
        {
-               int retval;
-               if ((retval = target_halt(target))!=ERROR_OK)
-                       return retval;
+               CHECK_RETVAL(target_halt(target));
        }
 
        return ERROR_OK;
@@ -1074,22 +1068,20 @@ int arm11_get_gdb_reg_list(struct target_s *target, struct reg_s **reg_list[], i
        *reg_list_size  = ARM11_GDB_REGISTER_COUNT;
        *reg_list               = malloc(sizeof(reg_t*) * ARM11_GDB_REGISTER_COUNT);
 
-       {size_t i;
-       for (i = 16; i < 24; i++)
+       for (size_t i = 16; i < 24; i++)
        {
                (*reg_list)[i] = &arm11_gdb_dummy_fp_reg;
-       }}
+       }
 
        (*reg_list)[24] = &arm11_gdb_dummy_fps_reg;
 
-       {size_t i;
-       for (i = 0; i < ARM11_REGCACHE_COUNT; i++)
+       for (size_t i = 0; i < ARM11_REGCACHE_COUNT; i++)
        {
                if (arm11_reg_defs[i].gdb_num == -1)
                        continue;
 
                (*reg_list)[arm11_reg_defs[i].gdb_num] = arm11->reg_list + i;
-       }}
+       }
 
        return ERROR_OK;
 }
@@ -1125,8 +1117,7 @@ int arm11_read_memory(struct target_s *target, u32 address, u32 size, u32 count,
                /** \todo TODO: check if dirty is the right choice to force a rewrite on arm11_resume() */
                arm11->reg_list[ARM11_RC_R1].dirty = 1;
 
-               {size_t i;
-               for (i = 0; i < count; i++)
+               for (size_t i = 0; i < count; i++)
                {
                        /* ldrb    r1, [r0], #1 */
                        /* ldrb    r1, [r0] */
@@ -1138,7 +1129,7 @@ int arm11_read_memory(struct target_s *target, u32 address, u32 size, u32 count,
                        arm11_run_instr_data_from_core(arm11, 0xEE001E15, &res, 1);
 
                        *buffer++ = res;
-               }}
+               }
 
                break;
 
@@ -1146,10 +1137,7 @@ int arm11_read_memory(struct target_s *target, u32 address, u32 size, u32 count,
                {
                        arm11->reg_list[ARM11_RC_R1].dirty = 1;
 
-                       u16 * buf16 = (u16*)buffer;
-
-                       {size_t i;
-                       for (i = 0; i < count; i++)
+                       for (size_t i = 0; i < count; i++)
                        {
                                /* ldrh    r1, [r0], #2 */
                                arm11_run_instr_no_data1(arm11,
@@ -1160,20 +1148,24 @@ int arm11_read_memory(struct target_s *target, u32 address, u32 size, u32 count,
                                /* MCR p14,0,R1,c0,c5,0 */
                                arm11_run_instr_data_from_core(arm11, 0xEE001E15, &res, 1);
 
-                               *buf16++ = res;
-                       }}
+                               u16 svalue = res;
+                               memcpy(buffer + count * sizeof(u16), &svalue, sizeof(u16));
+                       }
 
                        break;
                }
 
        case 4:
+               {
+               u32 instr = !arm11_config_memrw_no_increment ? 0xecb05e01 : 0xed905e00;
+               /** \todo TODO: buffer cast to u32* causes alignment warnings */
+               u32 *words = (u32 *)buffer;
 
                /* LDC p14,c5,[R0],#4 */
                /* LDC p14,c5,[R0] */
-               arm11_run_instr_data_from_core(arm11,
-                       (!arm11_config_memrw_no_increment ? 0xecb05e01 : 0xed905e00),
-                       (u32 *)buffer, count);
+               arm11_run_instr_data_from_core(arm11, instr, words, count);
                break;
+               }
        }
 
        arm11_run_instr_data_finish(arm11);
@@ -1206,8 +1198,7 @@ int arm11_write_memory(struct target_s *target, u32 address, u32 size, u32 count
                {
                        arm11->reg_list[ARM11_RC_R1].dirty = 1;
 
-                       {size_t i;
-                       for (i = 0; i < count; i++)
+                       for (size_t i = 0; i < count; i++)
                        {
                                /* MRC p14,0,r1,c0,c5,0 */
                                arm11_run_instr_data_to_core1(arm11, 0xee101e15, *buffer++);
@@ -1216,7 +1207,7 @@ int arm11_write_memory(struct target_s *target, u32 address, u32 size, u32 count
                                /* strb    r1, [r0] */
                                arm11_run_instr_no_data1(arm11,
                                        !arm11_config_memrw_no_increment ? 0xe4c01001 : 0xe5c01000);
-                       }}
+                       }
 
                        break;
                }
@@ -1225,45 +1216,45 @@ int arm11_write_memory(struct target_s *target, u32 address, u32 size, u32 count
                {
                        arm11->reg_list[ARM11_RC_R1].dirty = 1;
 
-                       u16 * buf16 = (u16*)buffer;
-
-                       {size_t i;
-                       for (i = 0; i < count; i++)
+                       for (size_t i = 0; i < count; i++)
                        {
+                               u16 value;
+                               memcpy(&value, buffer + count * sizeof(u16), sizeof(u16));
+
                                /* MRC p14,0,r1,c0,c5,0 */
-                               arm11_run_instr_data_to_core1(arm11, 0xee101e15, *buf16++);
+                               arm11_run_instr_data_to_core1(arm11, 0xee101e15, value);
 
                                /* strh    r1, [r0], #2 */
                                /* strh    r1, [r0] */
                                arm11_run_instr_no_data1(arm11,
                                        !arm11_config_memrw_no_increment ? 0xe0c010b2 : 0xe1c010b0);
-                       }}
+                       }
 
                        break;
                }
 
-       case 4:
-               /** \todo TODO: check if buffer cast to u32* might cause alignment problems */
+       case 4: {
+               u32 instr = !arm11_config_memrw_no_increment ? 0xeca05e01 : 0xed805e00;
+
+               /** \todo TODO: buffer cast to u32* causes alignment warnings */
+               u32 *words = (u32*)buffer;
 
                if (!arm11_config_memwrite_burst)
                {
                        /* STC p14,c5,[R0],#4 */
                        /* STC p14,c5,[R0]*/
-                       arm11_run_instr_data_to_core(arm11,
-                               (!arm11_config_memrw_no_increment ? 0xeca05e01 : 0xed805e00),
-                               (u32 *)buffer, count);
+                       arm11_run_instr_data_to_core(arm11, instr, words, count);
                }
                else
                {
                        /* STC p14,c5,[R0],#4 */
                        /* STC p14,c5,[R0]*/
-                       arm11_run_instr_data_to_core_noack(arm11,
-                               (!arm11_config_memrw_no_increment ? 0xeca05e01 : 0xed805e00),
-                               (u32 *)buffer, count);
+                       arm11_run_instr_data_to_core_noack(arm11, instr, words, count);
                }
 
                break;
        }
+       }
 
 #if 1
        /* r0 verification */
@@ -1307,11 +1298,13 @@ int arm11_bulk_write_memory(struct target_s *target, u32 address, u32 count, u8
        return arm11_write_memory(target, address, 4, count, buffer);
 }
 
+/* here we have nothing target specific to contribute, so we fail and then the
+ * fallback code will read data from the target and calculate the CRC on the
+ * host.
+ */
 int arm11_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum)
 {
-       FNC_INFO_NOTIMPLEMENTED;
-
-       return ERROR_OK;
+       return ERROR_FAIL;
 }
 
 /* target break-/watchpoint control
@@ -1333,13 +1326,13 @@ int arm11_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
 
        if (!arm11->free_brps)
        {
-               LOG_INFO("no breakpoint unit available for hardware breakpoint");
+               LOG_DEBUG("no breakpoint unit available for hardware breakpoint");
                return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
        }
 
        if (breakpoint->length != 4)
        {
-               LOG_INFO("only breakpoints of four bytes length supported");
+               LOG_DEBUG("only breakpoints of four bytes length supported");
                return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
        }
 
@@ -1380,21 +1373,14 @@ int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t
                        int timeout_ms, void *arch_info)
 {
                arm11_common_t *arm11 = target->arch_info;
-       armv4_5_algorithm_t *arm11_algorithm_info = arch_info;
 //     enum armv4_5_state core_state = arm11->core_state;
 //     enum armv4_5_mode core_mode = arm11->core_mode;
        u32 context[16];
        u32 cpsr;
        int exit_breakpoint_size = 0;
-       int i;
        int retval = ERROR_OK;
                LOG_DEBUG("Running algorithm");
 
-       if (arm11_algorithm_info->common_magic != ARMV4_5_COMMON_MAGIC)
-       {
-               LOG_ERROR("current target isn't an ARMV4/5 target");
-               return ERROR_TARGET_INVALID;
-       }
 
        if (target->state != TARGET_HALTED)
        {
@@ -1407,22 +1393,22 @@ int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t
 //             return ERROR_FAIL;
 
        // Save regs
-       for (i = 0; i < 16; i++)
+       for (size_t i = 0; i < 16; i++)
        {
                context[i] = buf_get_u32((u8*)(&arm11->reg_values[i]),0,32);
-               LOG_DEBUG("Save %i: 0x%x",i,context[i]);
+               LOG_DEBUG("Save %zi: 0x%x",i,context[i]);
        }
 
        cpsr = buf_get_u32((u8*)(arm11->reg_values+ARM11_RC_CPSR),0,32);
        LOG_DEBUG("Save CPSR: 0x%x", cpsr);
 
-       for (i = 0; i < num_mem_params; i++)
+       for (int i = 0; i < num_mem_params; i++)
        {
                target_write_buffer(target, mem_params[i].address, mem_params[i].size, mem_params[i].value);
        }
 
        // Set register parameters
-       for (i = 0; i < num_reg_params; i++)
+       for (int i = 0; i < num_reg_params; i++)
        {
                reg_t *reg = register_get_by_name(arm11->core_cache, reg_params[i].reg_name, 0);
                if (!reg)
@@ -1453,6 +1439,12 @@ int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t
                exit(-1);
        }
 */
+
+
+/* arm11 at this point only supports ARM not THUMB mode
+   however if this test needs to be reactivated the current state can be read back
+   from CPSR */
+#if 0
        if (arm11_algorithm_info->core_mode != ARMV4_5_MODE_ANY)
        {
                LOG_DEBUG("setting core_mode: 0x%2.2x", arm11_algorithm_info->core_mode);
@@ -1460,6 +1452,7 @@ int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t
                arm11->reg_list[ARM11_RC_CPSR].dirty = 1;
                arm11->reg_list[ARM11_RC_CPSR].valid = 1;
        }
+#endif
 
        if ((retval = breakpoint_add(target, exit_point, exit_breakpoint_size, BKPT_HARD)) != ERROR_OK)
        {
@@ -1469,25 +1462,18 @@ int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t
        }
 
        // no debug, otherwise breakpoint is not set
-       if((retval = target_resume(target, 0, entry_point, 1, 0)) != ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(target_resume(target, 0, entry_point, 1, 0));
 
-       if((retval = target_wait_state(target, TARGET_HALTED, timeout_ms)) != ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(target_wait_state(target, TARGET_HALTED, timeout_ms));
 
        if (target->state != TARGET_HALTED)
        {
-               if ((retval=target_halt(target))!=ERROR_OK)
-                       return retval;
-               if ((retval=target_wait_state(target, TARGET_HALTED, 500))!=ERROR_OK)
-               {
-                       return retval;
-               }
+               CHECK_RETVAL(target_halt(target));
+
+               CHECK_RETVAL(target_wait_state(target, TARGET_HALTED, 500));
+
                retval = ERROR_TARGET_TIMEOUT;
+
                goto del_breakpoint;
        }
 
@@ -1499,13 +1485,13 @@ int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t
                goto del_breakpoint;
        }
 
-       for (i = 0; i < num_mem_params; i++)
+       for (int i = 0; i < num_mem_params; i++)
        {
                if (mem_params[i].direction != PARAM_OUT)
                        target_read_buffer(target, mem_params[i].address, mem_params[i].size, mem_params[i].value);
        }
 
-       for (i = 0; i < num_reg_params; i++)
+       for (int i = 0; i < num_reg_params; i++)
        {
                if (reg_params[i].direction != PARAM_OUT)
                {
@@ -1531,7 +1517,7 @@ del_breakpoint:
 
 restore:
        // Restore context
-       for (i = 0; i < 16; i++)
+       for (size_t i = 0; i < 16; i++)
        {
                LOG_DEBUG("restoring register %s with value 0x%8.8x",
                         arm11->reg_list[i].name, context[i]);
@@ -1548,22 +1534,12 @@ restore:
 
 int arm11_target_create(struct target_s *target, Jim_Interp *interp)
 {
-       int retval = ERROR_OK;
        FNC_INFO;
 
        NEW(arm11_common_t, arm11, 1);
 
        arm11->target = target;
 
-       /* prepare JTAG information for the new target */
-       arm11->jtag_info.tap    = target->tap;
-       arm11->jtag_info.scann_size     = 5;
-
-       if((retval = arm_jtag_setup_connection(&arm11->jtag_info)) != ERROR_OK)
-       {
-               return retval;
-       }
-
        if (target->tap==NULL)
                return ERROR_FAIL;
 
@@ -1588,7 +1564,6 @@ int arm11_init_target(struct command_context_s *cmd_ctx, struct target_s *target
 int arm11_examine(struct target_s *target)
 {
        FNC_INFO;
-       int retval;
 
        arm11_common_t * arm11 = target->arch_info;
 
@@ -1615,9 +1590,7 @@ int arm11_examine(struct target_s *target)
 
        arm11_add_dr_scan_vc(asizeof(chain0_fields), chain0_fields, TAP_IDLE);
 
-       if ((retval=jtag_execute_queue())!=ERROR_OK)
-               return retval;
-
+       CHECK_RETVAL(jtag_execute_queue());
 
        switch (arm11->device_id & 0x0FFFF000)
        {
@@ -1659,7 +1632,7 @@ int arm11_examine(struct target_s *target)
 
        arm11_check_init(arm11, NULL);
 
-       target->type->examined = 1;
+       target_set_examined(target);
 
        return ERROR_OK;
 }
@@ -1875,7 +1848,7 @@ arm11_common_t * arm11_find_target(const char * arg)
                        continue;
 
                /* if (t->type == arm11_target) */
-               if (0 == strcmp(t->type->name, "arm11"))
+               if (0 == strcmp(target_get_name(t), "arm11"))
                        return t->arch_info;
        }
 
@@ -1908,8 +1881,7 @@ int arm11_handle_mrc_mcr(struct command_context_s *cmd_ctx, char *cmd, char **ar
 
        u32     values[6];
 
-       {size_t i;
-       for (i = 0; i < (read ? 5 : 6); i++)
+       for (size_t i = 0; i < (read ? 5 : 6); i++)
        {
                values[i] = strtoul(args[i + 1], NULL, 0);
 
@@ -1920,7 +1892,7 @@ int arm11_handle_mrc_mcr(struct command_context_s *cmd_ctx, char *cmd, char **ar
                                read ? arm11_mrc_syntax : arm11_mcr_syntax);
                        return -1;
                }
-       }}
+       }
 
        u32 instr = 0xEE000010  |
                (values[0] <<  8) |
@@ -1983,11 +1955,11 @@ int arm11_register_commands(struct command_context_s *cmd_ctx)
 
                RC_FINAL_BOOL(  "error_fatal",                  "Terminate program if transfer error was found (default: enabled)",
                                                memwrite_error_fatal)
-       )
+       ) /* memwrite */
 
        RC_FINAL_BOOL(          "no_increment",                 "Don't increment address on multi-read/-write (default: disabled)",
                                                memrw_no_increment)
-                                               
+
        RC_FINAL_BOOL(          "step_irq_enable",              "Enable interrupts while stepping (default: disabled)",
                                                step_irq_enable)
 
@@ -1999,7 +1971,7 @@ int arm11_register_commands(struct command_context_s *cmd_ctx)
 
        RC_FINAL(                       "mcr",                                  "Write Coprocessor register",
                                                arm11_handle_mcr)
-       )
+       ) /* arm11 */
 
        return ERROR_OK;
 }

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|. .=o   . o      |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)