* *
***************************************************************************/
-/**
- * Select one of the APs connected to the specified DAP. The
- * selection is implicitly used with future AP transactions.
- * This is a NOP if the specified AP is already selected.
- *
- * @param dap The DAP
- * @param apsel Number of the AP to (implicitly) use with further
- * transactions. This normally identifies a MEM-AP.
- */
-void dap_ap_select(struct adiv5_dap *dap, uint8_t ap)
-{
- uint32_t new_ap = (ap << 24) & 0xFF000000;
-
- if (new_ap != dap->ap_current) {
- dap->ap_current = new_ap;
- /* Switching AP invalidates cached values.
- * Values MUST BE UPDATED BEFORE AP ACCESS.
- */
- dap->ap_bank_value = -1;
- }
-}
-
static int mem_ap_setup_csw(struct adiv5_ap *ap, uint32_t csw)
{
csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT |
/* Number of bits for tar autoincrement, impl. dep. at least 10 */
dap->ap[i].tar_autoincr_block = (1<<10);
}
- dap->ap_current = -1;
- dap->ap_bank_value = -1;
- dap->dp_bank_value = -1;
return dap;
}
if (!dap->ops)
dap->ops = &jtag_dp_ops;
- dap->ap_current = -1;
- dap->ap_bank_value = -1;
+ dap->select = DP_SELECT_INVALID;
dap->last_read = NULL;
for (size_t i = 0; i < 10; i++) {
/* DP initialization */
- dap->dp_bank_value = 0;
-
retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
if (retval != ERROR_OK)
continue;
return ERROR_OK;
}
+/* The designer identity code is encoded as:
+ * bits 11:8 : JEP106 Bank (number of continuation codes), only valid when bit 7 is 1.
+ * bit 7 : Set when bits 6:0 represent a JEP106 ID and cleared when bits 6:0 represent
+ * a legacy ASCII Identity Code.
+ * bits 6:0 : JEP106 Identity Code (without parity) or legacy ASCII code according to bit 7.
+ * JEP106 is a standard available from jedec.org
+ */
+
+/* Part number interpretations are from Cortex
+ * core specs, the CoreSight components TRM
+ * (ARM DDI 0314H), CoreSight System Design
+ * Guide (ARM DGI 0012D) and ETM specs; also
+ * from chip observation (e.g. TI SDTI).
+ */
+
+/* The legacy code only used the part number field to identify CoreSight peripherals.
+ * This meant that the same part number from two different manufacturers looked the same.
+ * It is desirable for all future additions to identify with both part number and JEP106.
+ * "ANY_ID" is a wildcard (any JEP106) only to preserve legacy behavior for legacy entries.
+ */
+
+#define ANY_ID 0x1000
+
+#define ARM_ID 0x4BB
+
+static const struct {
+ uint16_t designer_id;
+ uint16_t part_num;
+ const char *type;
+ const char *full;
+} dap_partnums[] = {
+ { ARM_ID, 0x000, "Cortex-M3 SCS", "(System Control Space)", },
+ { ARM_ID, 0x001, "Cortex-M3 ITM", "(Instrumentation Trace Module)", },
+ { ARM_ID, 0x002, "Cortex-M3 DWT", "(Data Watchpoint and Trace)", },
+ { ARM_ID, 0x003, "Cortex-M3 FBP", "(Flash Patch and Breakpoint)", },
+ { ARM_ID, 0x008, "Cortex-M0 SCS", "(System Control Space)", },
+ { ARM_ID, 0x00a, "Cortex-M0 DWT", "(Data Watchpoint and Trace)", },
+ { ARM_ID, 0x00b, "Cortex-M0 BPU", "(Breakpoint Unit)", },
+ { ARM_ID, 0x00c, "Cortex-M4 SCS", "(System Control Space)", },
+ { ARM_ID, 0x00d, "CoreSight ETM11", "(Embedded Trace)", },
+ { ARM_ID, 0x490, "Cortex-A15 GIC", "(Generic Interrupt Controller)", },
+ { ARM_ID, 0x4c7, "Cortex-M7 PPB", "(Private Peripheral Bus ROM Table)", },
+ { ARM_ID, 0x906, "CoreSight CTI", "(Cross Trigger)", },
+ { ARM_ID, 0x907, "CoreSight ETB", "(Trace Buffer)", },
+ { ARM_ID, 0x908, "CoreSight CSTF", "(Trace Funnel)", },
+ { ARM_ID, 0x910, "CoreSight ETM9", "(Embedded Trace)", },
+ { ARM_ID, 0x912, "CoreSight TPIU", "(Trace Port Interface Unit)", },
+ { ARM_ID, 0x913, "CoreSight ITM", "(Instrumentation Trace Macrocell)", },
+ { ARM_ID, 0x914, "CoreSight SWO", "(Single Wire Output)", },
+ { ARM_ID, 0x917, "CoreSight HTM", "(AHB Trace Macrocell)", },
+ { ARM_ID, 0x920, "CoreSight ETM11", "(Embedded Trace)", },
+ { ARM_ID, 0x921, "Cortex-A8 ETM", "(Embedded Trace)", },
+ { ARM_ID, 0x922, "Cortex-A8 CTI", "(Cross Trigger)", },
+ { ARM_ID, 0x923, "Cortex-M3 TPIU", "(Trace Port Interface Unit)", },
+ { ARM_ID, 0x924, "Cortex-M3 ETM", "(Embedded Trace)", },
+ { ARM_ID, 0x925, "Cortex-M4 ETM", "(Embedded Trace)", },
+ { ARM_ID, 0x930, "Cortex-R4 ETM", "(Embedded Trace)", },
+ { ARM_ID, 0x941, "CoreSight TPIU-Lite", "(Trace Port Interface Unit)", },
+ { ARM_ID, 0x950, "CoreSight Component", "(unidentified Cortex-A9 component)", },
+ { ARM_ID, 0x955, "CoreSight Component", "(unidentified Cortex-A5 component)", },
+ { ARM_ID, 0x95f, "Cortex-A15 PTM", "(Program Trace Macrocell)", },
+ { ARM_ID, 0x961, "CoreSight TMC", "(Trace Memory Controller)", },
+ { ARM_ID, 0x962, "CoreSight STM", "(System Trace Macrocell)", },
+ { ARM_ID, 0x9a0, "CoreSight PMU", "(Performance Monitoring Unit)", },
+ { ARM_ID, 0x9a1, "Cortex-M4 TPIU", "(Trace Port Interface Unit)", },
+ { ARM_ID, 0x9a5, "Cortex-A5 ETM", "(Embedded Trace)", },
+ { ARM_ID, 0x9a7, "Cortex-A7 PMU", "(Performance Monitor Unit)", },
+ { ARM_ID, 0x9af, "Cortex-A15 PMU", "(Performance Monitor Unit)", },
+ { ARM_ID, 0xc05, "Cortex-A5 Debug", "(Debug Unit)", },
+ { ARM_ID, 0xc07, "Cortex-A7 Debug", "(Debug Unit)", },
+ { ARM_ID, 0xc08, "Cortex-A8 Debug", "(Debug Unit)", },
+ { ARM_ID, 0xc09, "Cortex-A9 Debug", "(Debug Unit)", },
+ { ARM_ID, 0xc0f, "Cortex-A15 Debug", "(Debug Unit)", },
+ { ARM_ID, 0xc14, "Cortex-R4 Debug", "(Debug Unit)", },
+ { 0x0E5, 0x000, "SHARC+/Blackfin+", "", },
+ /* legacy comment: 0x113: what? */
+ { ANY_ID, 0x120, "TI SDTI", "(System Debug Trace Interface)", }, /* from OMAP3 memmap */
+ { ANY_ID, 0x343, "TI DAPCTL", "", }, /* from OMAP3 memmap */
+};
+
static int dap_rom_display(struct command_context *cmd_ctx,
struct adiv5_ap *ap, uint32_t dbgbase, int depth)
{
uint32_t c_cid0, c_cid1, c_cid2, c_cid3;
uint32_t c_pid0, c_pid1, c_pid2, c_pid3, c_pid4;
uint32_t component_base;
- uint32_t part_num;
+ uint16_t part_num, designer_id;
const char *type, *full;
component_base = (dbgbase & 0xFFFFF000) + (romentry & 0xFFFFF000);
(int)c_pid4, (int)c_pid3, (int)c_pid2,
(int)c_pid1, (int)c_pid0);
- /* Part number interpretations are from Cortex
- * core specs, the CoreSight components TRM
- * (ARM DDI 0314H), CoreSight System Design
- * Guide (ARM DGI 0012D) and ETM specs; also
- * from chip observation (e.g. TI SDTI).
- */
part_num = (c_pid0 & 0xff);
part_num |= (c_pid1 & 0x0f) << 8;
- switch (part_num) {
- case 0x000:
- type = "Cortex-M3 NVIC";
- full = "(Interrupt Controller)";
- break;
- case 0x001:
- type = "Cortex-M3 ITM";
- full = "(Instrumentation Trace Module)";
- break;
- case 0x002:
- type = "Cortex-M3 DWT";
- full = "(Data Watchpoint and Trace)";
- break;
- case 0x003:
- 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)";
- break;
- case 0x00d:
- type = "CoreSight ETM11";
- full = "(Embedded Trace)";
- break;
- /* case 0x113: what? */
- case 0x120: /* from OMAP3 memmap */
- type = "TI SDTI";
- full = "(System Debug Trace Interface)";
- break;
- case 0x343: /* from OMAP3 memmap */
- type = "TI DAPCTL";
- full = "";
- break;
- case 0x906:
- type = "Coresight CTI";
- full = "(Cross Trigger)";
- break;
- case 0x907:
- type = "Coresight ETB";
- full = "(Trace Buffer)";
- break;
- case 0x908:
- type = "Coresight CSTF";
- full = "(Trace Funnel)";
- break;
- case 0x910:
- type = "CoreSight ETM9";
- full = "(Embedded Trace)";
- break;
- case 0x912:
- type = "Coresight TPIU";
- full = "(Trace Port Interface Unit)";
- break;
- case 0x913:
- 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)";
- break;
- case 0x920:
- type = "CoreSight ETM11";
- full = "(Embedded Trace)";
- break;
- case 0x921:
- type = "Cortex-A8 ETM";
- full = "(Embedded Trace)";
- break;
- case 0x922:
- type = "Cortex-A8 CTI";
- full = "(Cross Trigger)";
- break;
- case 0x923:
- type = "Cortex-M3 TPIU";
- full = "(Trace Port Interface Unit)";
- break;
- case 0x924:
- type = "Cortex-M3 ETM";
- full = "(Embedded Trace)";
- break;
- case 0x925:
- type = "Cortex-M4 ETM";
- full = "(Embedded Trace)";
- break;
- case 0x930:
- type = "Cortex-R4 ETM";
- full = "(Embedded Trace)";
- break;
- case 0x950:
- 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)";
- break;
- case 0x9a0:
- type = "CoreSight PMU";
- full = "(Performance Monitoring Unit)";
- break;
- case 0x9a1:
- 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)";
- break;
- case 0xc09:
- 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 = "";
+ designer_id = (c_pid1 & 0xf0) >> 4;
+ designer_id |= (c_pid2 & 0x0f) << 4;
+ designer_id |= (c_pid4 & 0x0f) << 8;
+ if ((designer_id & 0x80) == 0) {
+ /* Legacy ASCII ID, clear invalid bits */
+ designer_id &= 0x7f;
+ }
+
+ /* default values to be overwritten upon finding a match */
+ type = NULL;
+ full = "";
+
+ /* search dap_partnums[] array for a match */
+ unsigned entry;
+ for (entry = 0; entry < ARRAY_SIZE(dap_partnums); entry++) {
+
+ if ((dap_partnums[entry].designer_id != designer_id) && (dap_partnums[entry].designer_id != ANY_ID))
+ continue;
+
+ if (dap_partnums[entry].part_num != part_num)
+ continue;
+
+ type = dap_partnums[entry].type;
+ full = dap_partnums[entry].full;
break;
}
- command_print(cmd_ctx, "\t\tPart is %s %s",
- type, full);
+
+ if (type) {
+ command_print(cmd_ctx, "\t\tPart is %s %s",
+ type, full);
+ } else {
+ command_print(cmd_ctx, "\t\tUnrecognized (Part 0x%" PRIx16 ", designer 0x%" PRIx16 ")",
+ part_num, designer_id);
+ }
/* ROM Table? */
if (((c_cid1 >> 4) & 0x0f) == 1) {
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