]> git.sur5r.net Git - openocd/blobdiff - src/target/cortex_m.c
armv7m: use consistent arm.cpsr member
[openocd] / src / target / cortex_m.c
index 89d70beceb7769b604825bf39399c84fdc3c877c..fbe635bdd8bc695bfe90b49f5e27cd4389179c49 100644 (file)
@@ -21,7 +21,7 @@
  *   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.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  *                                                                         *
  *                                                                         *
  *   Cortex-M3(tm) TRM, ARM DDI 0337E (r1p1) and 0337G (r2p0)              *
@@ -61,7 +61,7 @@
 
 /* forward declarations */
 static int cortex_m3_store_core_reg_u32(struct target *target,
-       enum armv7m_regtype type, uint32_t num, uint32_t value);
+               uint32_t num, uint32_t value);
 
 static int cortexm3_dap_read_coreregister_u32(struct adiv5_dap *swjdp,
        uint32_t *value, int regnum)
@@ -298,7 +298,7 @@ static int cortex_m3_endreset_event(struct target *target)
        if (retval != ERROR_OK)
                return retval;
 
-       register_cache_invalidate(cortex_m3->armv7m.core_cache);
+       register_cache_invalidate(armv7m->arm.core_cache);
 
        /* make sure we have latest dhcsr flags */
        retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
@@ -421,15 +421,16 @@ static int cortex_m3_debug_entry(struct target *target)
                return retval;
 
        /* Examine target state and mode
-        * First load register acessible through core debug port*/
-       int num_regs = armv7m->core_cache->num_regs;
+        * First load register accessible through core debug port */
+       int num_regs = arm->core_cache->num_regs;
 
        for (i = 0; i < num_regs; i++) {
-               if (!armv7m->core_cache->reg_list[i].valid)
-                       armv7m->read_core_reg(target, i);
+               r = &armv7m->arm.core_cache->reg_list[i];
+               if (!r->valid)
+                       arm->read_core_reg(target, r, i, ARM_MODE_ANY);
        }
 
-       r = armv7m->core_cache->reg_list + ARMV7M_xPSR;
+       r = arm->cpsr;
        xPSR = buf_get_u32(r->value, 0, 32);
 
 #ifdef ARMV7_GDB_HACKS
@@ -446,7 +447,7 @@ static int cortex_m3_debug_entry(struct target *target)
        /* For IT instructions xPSR must be reloaded on resume and clear on debug exec */
        if (xPSR & 0xf00) {
                r->dirty = r->valid;
-               cortex_m3_store_core_reg_u32(target, ARMV7M_REGISTER_CORE_GP, 16, xPSR & ~0xff);
+               cortex_m3_store_core_reg_u32(target, 16, xPSR & ~0xff);
        }
 
        /* Are we in an exception handler */
@@ -631,6 +632,12 @@ static int cortex_m3_soft_reset_halt(struct target *target)
        uint32_t dcb_dhcsr = 0;
        int retval, timeout = 0;
 
+       /* soft_reset_halt is deprecated on cortex_m as the same functionality
+        * can be obtained by using 'reset halt' and 'cortex_m reset_config vectreset'
+        * As this reset only used VC_CORERESET it would only ever reset the cortex_m
+        * core, not the peripherals */
+       LOG_WARNING("soft_reset_halt is deprecated, please use 'reset halt' instead.");
+
        /* Enter debug state on reset; restore DEMCR in endreset_event() */
        retval = mem_ap_write_u32(swjdp, DCB_DEMCR,
                        TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET);
@@ -645,7 +652,7 @@ static int cortex_m3_soft_reset_halt(struct target *target)
        target->state = TARGET_RESET;
 
        /* registers are now invalid */
-       register_cache_invalidate(cortex_m3->armv7m.core_cache);
+       register_cache_invalidate(cortex_m3->armv7m.arm.core_cache);
 
        while (timeout < 100) {
                retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &dcb_dhcsr);
@@ -707,7 +714,7 @@ static int cortex_m3_resume(struct target *target, int current,
        }
 
        if (debug_execution) {
-               r = armv7m->core_cache->reg_list + ARMV7M_PRIMASK;
+               r = armv7m->arm.core_cache->reg_list + ARMV7M_PRIMASK;
 
                /* Disable interrupts */
                /* We disable interrupts in the PRIMASK register instead of
@@ -725,7 +732,7 @@ static int cortex_m3_resume(struct target *target, int current,
                r->valid = true;
 
                /* Make sure we are in Thumb mode */
-               r = armv7m->core_cache->reg_list + ARMV7M_xPSR;
+               r = armv7m->arm.cpsr;
                buf_set_u32(r->value, 24, 1, 1);
                r->dirty = true;
                r->valid = true;
@@ -771,7 +778,7 @@ static int cortex_m3_resume(struct target *target, int current,
        target->debug_reason = DBG_REASON_NOTHALTED;
 
        /* registers are now invalid */
-       register_cache_invalidate(armv7m->core_cache);
+       register_cache_invalidate(armv7m->arm.core_cache);
 
        if (!debug_execution) {
                target->state = TARGET_RUNNING;
@@ -934,7 +941,7 @@ static int cortex_m3_step(struct target *target, int current,
                return retval;
 
        /* registers are now invalid */
-       register_cache_invalidate(cortex_m3->armv7m.core_cache);
+       register_cache_invalidate(armv7m->arm.core_cache);
 
        if (breakpoint)
                cortex_m3_set_breakpoint(target, breakpoint);
@@ -977,7 +984,7 @@ static int cortex_m3_assert_reset(struct target *target)
                /* allow scripts to override the reset event */
 
                target_handle_event(target, TARGET_EVENT_RESET_ASSERT);
-               register_cache_invalidate(cortex_m3->armv7m.core_cache);
+               register_cache_invalidate(cortex_m3->armv7m.arm.core_cache);
                target->state = TARGET_RESET;
 
                return ERROR_OK;
@@ -988,7 +995,8 @@ static int cortex_m3_assert_reset(struct target *target)
 
        bool srst_asserted = false;
 
-       if (jtag_reset_config & RESET_SRST_NO_GATING) {
+       if ((jtag_reset_config & RESET_HAS_SRST) &&
+           (jtag_reset_config & RESET_SRST_NO_GATING)) {
                adapter_assert_reset();
                srst_asserted = true;
        }
@@ -1059,11 +1067,11 @@ static int cortex_m3_assert_reset(struct target *target)
                if (retval != ERROR_OK)
                        return retval;
 
-               LOG_DEBUG("Using Cortex-M3 %s", (reset_config == CORTEX_M3_RESET_SYSRESETREQ)
+               LOG_DEBUG("Using Cortex-M %s", (reset_config == CORTEX_M3_RESET_SYSRESETREQ)
                        ? "SYSRESETREQ" : "VECTRESET");
 
                if (reset_config == CORTEX_M3_RESET_VECTRESET) {
-                       LOG_WARNING("Only resetting the Cortex-M3 core, use a reset-init event "
+                       LOG_WARNING("Only resetting the Cortex-M core, use a reset-init event "
                                "handler to reset any peripherals or configure hardware srst support.");
                }
 
@@ -1082,7 +1090,7 @@ static int cortex_m3_assert_reset(struct target *target)
        target->state = TARGET_RESET;
        jtag_add_sleep(50000);
 
-       register_cache_invalidate(cortex_m3->armv7m.core_cache);
+       register_cache_invalidate(cortex_m3->armv7m.arm.core_cache);
 
        if (target->reset_halt) {
                retval = target_halt(target);
@@ -1464,7 +1472,7 @@ void cortex_m3_enable_watchpoints(struct target *target)
 }
 
 static int cortex_m3_load_core_reg_u32(struct target *target,
-       enum armv7m_regtype type, uint32_t num, uint32_t *value)
+               uint32_t num, uint32_t *value)
 {
        int retval;
        struct armv7m_common *armv7m = target_to_armv7m(target);
@@ -1525,7 +1533,7 @@ static int cortex_m3_load_core_reg_u32(struct target *target,
 }
 
 static int cortex_m3_store_core_reg_u32(struct target *target,
-       enum armv7m_regtype type, uint32_t num, uint32_t value)
+               uint32_t num, uint32_t value)
 {
        int retval;
        uint32_t reg;
@@ -1555,7 +1563,7 @@ static int cortex_m3_store_core_reg_u32(struct target *target,
                                struct reg *r;
 
                                LOG_ERROR("JTAG failure");
-                               r = armv7m->core_cache->reg_list + num;
+                               r = armv7m->arm.core_cache->reg_list + num;
                                r->dirty = r->valid;
                                return ERROR_JTAG_DEVICE_ERROR;
                        }
@@ -1619,7 +1627,7 @@ static int cortex_m3_read_memory(struct target *target, uint32_t address,
        if (count && buffer) {
                switch (size) {
                        case 4:
-                               retval = mem_ap_read_buf_u32(swjdp, buffer, 4 * count, address);
+                               retval = mem_ap_read_buf_u32(swjdp, buffer, 4 * count, address, true);
                                break;
                        case 2:
                                retval = mem_ap_read_buf_u16(swjdp, buffer, 2 * count, address);
@@ -1649,7 +1657,7 @@ static int cortex_m3_write_memory(struct target *target, uint32_t address,
        if (count && buffer) {
                switch (size) {
                        case 4:
-                               retval = mem_ap_write_buf_u32(swjdp, buffer, 4 * count, address);
+                               retval = mem_ap_write_buf_u32(swjdp, buffer, 4 * count, address, true);
                                break;
                        case 2:
                                retval = mem_ap_write_buf_u16(swjdp, buffer, 2 * count, address);
@@ -1663,12 +1671,6 @@ static int cortex_m3_write_memory(struct target *target, uint32_t address,
        return retval;
 }
 
-static int cortex_m3_bulk_write_memory(struct target *target, uint32_t address,
-       uint32_t count, const uint8_t *buffer)
-{
-       return cortex_m3_write_memory(target, address, 4, count, buffer);
-}
-
 static int cortex_m3_init_target(struct command_context *cmd_ctx,
        struct target *target)
 {
@@ -1801,6 +1803,9 @@ fail1:
                for (j = 0; j < 3; j++, reg++)
                        cortex_m3_dwt_addreg(target, cache->reg_list + reg,
                                dwt_comp + 3 * i + j);
+
+               /* make sure we clear any watchpoints enabled on the target */
+               target_write_u32(target, comparator->dwt_comparator_address + 8, 0);
        }
 
        *register_get_last_cache_p(&target->reg_cache) = cache;
@@ -1892,6 +1897,9 @@ int cortex_m3_examine(struct target *target)
                        cortex_m3->fp_comparator_list[i].type =
                                (i < cortex_m3->fp_num_code) ? FPCR_CODE : FPCR_LITERAL;
                        cortex_m3->fp_comparator_list[i].fpcr_address = FP_COMP0 + 4 * i;
+
+                       /* make sure we clear any breakpoints enabled on the target */
+                       target_write_u32(target, cortex_m3->fp_comparator_list[i].fpcr_address, 0);
                }
                LOG_DEBUG("FPB fpcr 0x%" PRIx32 ", numcode %i, numlit %i",
                        fpcr,
@@ -2049,7 +2057,7 @@ static int cortex_m3_verify_pointer(struct command_context *cmd_ctx,
        struct cortex_m3_common *cm3)
 {
        if (cm3->common_magic != CORTEX_M3_COMMON_MAGIC) {
-               command_print(cmd_ctx, "target is not a Cortex-M3");
+               command_print(cmd_ctx, "target is not a Cortex-M");
                return ERROR_TARGET_INVALID;
        }
        return ERROR_OK;
@@ -2184,7 +2192,7 @@ COMMAND_HANDLER(handle_cortex_m3_mask_interrupts_command)
        }
 
        n = Jim_Nvp_value2name_simple(nvp_maskisr_modes, cortex_m3->isrmasking_mode);
-       command_print(CMD_CTX, "cortex_m3 interrupt mask %s", n->name);
+       command_print(CMD_CTX, "cortex_m interrupt mask %s", n->name);
 
        return ERROR_OK;
 }
@@ -2221,7 +2229,7 @@ COMMAND_HANDLER(handle_cortex_m3_reset_config_command)
                        break;
        }
 
-       command_print(CMD_CTX, "cortex_m3 reset_config %s", reset_config);
+       command_print(CMD_CTX, "cortex_m reset_config %s", reset_config);
 
        return ERROR_OK;
 }
@@ -2231,7 +2239,7 @@ static const struct command_registration cortex_m3_exec_command_handlers[] = {
                .name = "maskisr",
                .handler = handle_cortex_m3_mask_interrupts_command,
                .mode = COMMAND_EXEC,
-               .help = "mask cortex_m3 interrupts",
+               .help = "mask cortex_m interrupts",
                .usage = "['auto'|'on'|'off']",
        },
        {
@@ -2255,9 +2263,9 @@ static const struct command_registration cortex_m3_command_handlers[] = {
                .chain = armv7m_command_handlers,
        },
        {
-               .name = "cortex_m3",
+               .name = "cortex_m",
                .mode = COMMAND_EXEC,
-               .help = "Cortex-M3 command group",
+               .help = "Cortex-M command group",
                .usage = "",
                .chain = cortex_m3_exec_command_handlers,
        },
@@ -2265,7 +2273,8 @@ static const struct command_registration cortex_m3_command_handlers[] = {
 };
 
 struct target_type cortexm3_target = {
-       .name = "cortex_m3",
+       .name = "cortex_m",
+       .deprecated_name = "cortex_m3",
 
        .poll = cortex_m3_poll,
        .arch_state = armv7m_arch_state,
@@ -2284,7 +2293,6 @@ struct target_type cortexm3_target = {
 
        .read_memory = cortex_m3_read_memory,
        .write_memory = cortex_m3_write_memory,
-       .bulk_write_memory = cortex_m3_bulk_write_memory,
        .checksum_memory = armv7m_checksum_memory,
        .blank_check_memory = armv7m_blank_check_memory,