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cortex_m: Add Cortex-M0 identification to ROM-table display.
[openocd.git] / src / target / arm_adi_v5.c
diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c
index efddd66900adef5c85d5dad65301c941f4ad1718..4f19e954867828341b177caa97ec0e14f2f7319f 100644 (file)
--- a/src/target/arm_adi_v5.c
+++ b/src/target/arm_adi_v5.c
@@ -661,6 +661,7 @@ int ahbap_debugport_init(struct adiv5_dap *dap)
         */
        dap->ap_current = !0;
        dap_ap_select(dap, 0);
+       dap->last_read = NULL;
 
        /* DP initialization */
 
@@ -828,11 +829,10 @@ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, uint8_t *ap_nu
 }
 
 int dap_get_debugbase(struct adiv5_dap *dap, int ap,
-                       uint32_t *out_dbgbase, uint32_t *out_apid)
+                       uint32_t *dbgbase, uint32_t *apid)
 {
        uint32_t ap_old;
        int retval;
-       uint32_t dbgbase, apid;
 
        /* AP address is in bits 31:24 of DP_SELECT */
        if (ap >= 256)
@@ -841,46 +841,32 @@ int dap_get_debugbase(struct adiv5_dap *dap, int ap,
        ap_old = dap->ap_current;
        dap_ap_select(dap, ap);
 
-       retval = dap_queue_ap_read(dap, AP_REG_BASE, &dbgbase);
+       retval = dap_queue_ap_read(dap, AP_REG_BASE, dbgbase);
        if (retval != ERROR_OK)
                return retval;
-       retval = dap_queue_ap_read(dap, AP_REG_IDR, &apid);
+       retval = dap_queue_ap_read(dap, AP_REG_IDR, apid);
        if (retval != ERROR_OK)
                return retval;
        retval = dap_run(dap);
        if (retval != ERROR_OK)
                return retval;
 
-       /* Excavate the device ID code */
-       struct jtag_tap *tap = dap->jtag_info->tap;
-       while (tap != NULL) {
-               if (tap->hasidcode)
-                       break;
-               tap = tap->next_tap;
-       }
-       if (tap == NULL || !tap->hasidcode)
-               return ERROR_OK;
-
        dap_ap_select(dap, ap_old);
 
-       /* The asignment happens only here to prevent modification of these
-        * values before they are certain. */
-       *out_dbgbase = dbgbase;
-       *out_apid = apid;
-
        return ERROR_OK;
 }
 
 int dap_lookup_cs_component(struct adiv5_dap *dap, int ap,
-                       uint32_t dbgbase, uint8_t type, uint32_t *addr)
+                       uint32_t dbgbase, uint8_t type, uint32_t *addr, int32_t *idx)
 {
        uint32_t ap_old;
        uint32_t romentry, entry_offset = 0, component_base, devtype;
-       int retval = ERROR_FAIL;
+       int retval;
 
        if (ap >= 256)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
+       *addr = 0;
        ap_old = dap->ap_current;
        dap_ap_select(dap, ap);
 
@@ -894,15 +880,33 @@ int dap_lookup_cs_component(struct adiv5_dap *dap, int ap,
                        + (romentry & 0xFFFFF000);
 
                if (romentry & 0x1) {
+                       uint32_t c_cid1;
+                       retval = mem_ap_read_atomic_u32(dap, component_base | 0xff4, &c_cid1);
+                       if (retval != ERROR_OK) {
+                               LOG_ERROR("Can't read component with base address 0x%" PRIx32
+                                         ", the corresponding core might be turned off", component_base);
+                               return retval;
+                       }
+                       if (((c_cid1 >> 4) & 0x0f) == 1) {
+                               retval = dap_lookup_cs_component(dap, ap, component_base,
+                                                       type, addr, idx);
+                               if (retval == ERROR_OK)
+                                       break;
+                               if (retval != ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
+                                       return retval;
+                       }
+
                        retval = mem_ap_read_atomic_u32(dap,
                                        (component_base & 0xfffff000) | 0xfcc,
                                        &devtype);
                        if (retval != ERROR_OK)
                                return retval;
                        if ((devtype & 0xff) == type) {
-                               *addr = component_base;
-                               retval = ERROR_OK;
-                               break;
+                               if (!*idx) {
+                                       *addr = component_base;
+                                       break;
+                               } else
+                                       (*idx)--;
                        }
                }
                entry_offset += 4;
@@ -910,7 +914,10 @@ int dap_lookup_cs_component(struct adiv5_dap *dap, int ap,
 
        dap_ap_select(dap, ap_old);
 
-       return retval;
+       if (!*addr)
+               return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+
+       return ERROR_OK;
 }
 
 static int dap_rom_display(struct command_context *cmd_ctx,
@@ -980,7 +987,7 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                        uint32_t c_pid0, c_pid1, c_pid2, c_pid3, c_pid4;
                        uint32_t component_base;
                        unsigned part_num;
-                       char *type, *full;
+                       const char *type, *full;
 
                        component_base = (dbgbase & 0xFFFFF000) + (romentry & 0xFFFFF000);
 
@@ -1039,7 +1046,7 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                        if (((c_cid1 >> 4) & 0x0f) == 9) {
                                uint32_t devtype;
                                unsigned minor;
-                               char *major = "Reserved", *subtype = "Reserved";
+                               const char *major = "Reserved", *subtype = "Reserved";
 
                                retval = mem_ap_read_atomic_u32(dap,
                                                (component_base & 0xfffff000) | 0xfcc,
@@ -1227,6 +1234,18 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                                type = "Cortex-M3 FBP";
                                full = "(Flash Patch and Breakpoint)";
                                break;
+                       case 0x008:
+                               type = "Cortex-M0 SCS";
+                               full = "(System Control Space)";
+                               break;
+                       case 0x00a:
+                               type = "Cortex-M0 DWT";
+                               full = "(Data Watchpoint and Trace)";
+                               break;
+                       case 0x00b:
+                               type = "Cortex-M0 BPU";
+                               full = "(Breakpoint Unit)";
+                               break;
                        case 0x00c:
                                type = "Cortex-M4 SCS";
                                full = "(System Control Space)";
@@ -1268,6 +1287,10 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                                type = "Coresight ITM";
                                full = "(Instrumentation Trace Macrocell)";
                                break;
+                       case 0x914:
+                               type = "Coresight SWO";
+                               full = "(Single Wire Output)";
+                               break;
                        case 0x917:
                                type = "Coresight HTM";
                                full = "(AHB Trace Macrocell)";
@@ -1304,6 +1327,10 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                                type = "CoreSight Component";
                                full = "(unidentified Cortex-A9 component)";
                                break;
+                       case 0x961:
+                               type = "CoreSight TMC";
+                               full = "(Trace Memory Controller)";
+                               break;
                        case 0x962:
                                type = "CoreSight STM";
                                full = "(System Trace Macrocell)";
@@ -1316,6 +1343,14 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                                type = "Cortex-M4 TPUI";
                                full = "(Trace Port Interface Unit)";
                                break;
+                       case 0x9a5:
+                               type = "Cortex-A5 ETM";
+                               full = "(Embedded Trace)";
+                               break;
+                       case 0xc05:
+                               type = "Cortex-A5 Debug";
+                               full = "(Debug Unit)";
+                               break;
                        case 0xc08:
                                type = "Cortex-A8 Debug";
                                full = "(Debug Unit)";
@@ -1324,7 +1359,12 @@ static int dap_rom_display(struct command_context *cmd_ctx,
                                type = "Cortex-A9 Debug";
                                full = "(Debug Unit)";
                                break;
+                       case 0x4af:
+                               type = "Cortex-A15 Debug";
+                               full = "(Debug Unit)";
+                               break;
                        default:
+                               LOG_DEBUG("Unrecognized Part number 0x%" PRIx32, part_num);
                                type = "-*- unrecognized -*-";
                                full = "";
                                break;
@@ -1353,7 +1393,7 @@ static int dap_info_command(struct command_context *cmd_ctx,
                struct adiv5_dap *dap, int ap)
 {
        int retval;
-       uint32_t dbgbase = 0, apid = 0; /* Silence gcc by initializing */
+       uint32_t dbgbase, apid;
        int romtable_present = 0;
        uint8_t mem_ap;
        uint32_t ap_old;
@@ -1393,9 +1433,9 @@ static int dap_info_command(struct command_context *cmd_ctx,
                command_print(cmd_ctx, "No AP found at this ap 0x%x", ap);
 
        romtable_present = ((mem_ap) && (dbgbase != 0xFFFFFFFF));
-       if (romtable_present) {
+       if (romtable_present)
                dap_rom_display(cmd_ctx, dap, ap, dbgbase, 0);
-       } else
+       else
                command_print(cmd_ctx, "\tNo ROM table present");
        dap_ap_select(dap, ap_old);
 
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