return ERROR_OK;
}
-
-char * class_description[16] ={
- "Reserved",
- "ROM table","Reserved","Reserved","Reserved","Reserved","Reserved","Reserved","Reserved",
- "CoreSight component","Reserved","Peripheral Test Block","Reserved","DESS","Generic IP component","Non standard layout"};
+/* CID interpretation -- see ARM IHI 0029B section 3 */
+static const char *class_description[16] ={
+ "Reserved", "ROM table", "Reserved", "Reserved",
+ "Reserved", "Reserved", "Reserved", "Reserved",
+ "Reserved", "CoreSight component", "Reserved", "Peripheral Test Block",
+ "Reserved", "DESS", "Generic IP component", "PrimeCell or System component"
+};
+
+static bool
+is_dap_cid_ok(uint32_t cid3, uint32_t cid2, uint32_t cid1, uint32_t cid0)
+{
+ return cid3 == 0xb1 && cid2 == 0x05
+ && ((cid1 & 0x0f) == 0) && cid0 == 0x0d;
+}
int dap_info_command(struct command_context_s *cmd_ctx, swjdp_common_t *swjdp, int apsel)
{
{
uint32_t cid0,cid1,cid2,cid3,memtype,romentry;
uint16_t entry_offset;
+
/* bit 16 of apid indicates a memory access port */
- if (dbgbase&0x02)
- {
+ if (dbgbase & 0x02)
command_print(cmd_ctx, "\tValid ROM table present");
- }
else
- {
command_print(cmd_ctx, "\tROM table in legacy format");
- }
+
/* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */
mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFF0, &cid0);
mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFF4, &cid1);
mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFFC, &cid3);
mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFCC, &memtype);
swjdp_transaction_endcheck(swjdp);
- command_print(cmd_ctx, "\tCID3 0x%" PRIx32 ", CID2 0x%" PRIx32 ", CID1 0x%" PRIx32 " CID0, 0x%" PRIx32,cid3,cid2,cid1,cid0);
- if (memtype&0x01)
- {
+ if (!is_dap_cid_ok(cid3, cid2, cid1, cid0))
+ command_print(cmd_ctx, "\tCID3 0x%2.2" PRIx32
+ ", CID2 0x%2.2" PRIx32
+ ", CID1 0x%2.2" PRIx32
+ ", CID0 0x%2.2" PRIx32,
+ cid3, cid2, cid1, cid0);
+ if (memtype & 0x01)
command_print(cmd_ctx, "\tMEMTYPE system memory present on bus");
- }
else
- {
- command_print(cmd_ctx, "\tMEMTYPE system memory not present. Dedicated debug bus");
- }
+ command_print(cmd_ctx, "\tMEMTYPE System memory not present. "
+ "Dedicated debug bus.");
/* Now we read ROM table entries from dbgbase&0xFFFFF000) | 0x000 until we get 0x00000000 */
entry_offset = 0;
command_print(cmd_ctx, "\tROMTABLE[0x%x] = 0x%" PRIx32 "",entry_offset,romentry);
if (romentry&0x01)
{
- uint32_t c_cid0,c_cid1,c_cid2,c_cid3,c_pid0,c_pid1,c_pid2,c_pid3,c_pid4,component_start;
- uint32_t component_base = (uint32_t)((dbgbase&0xFFFFF000) + (int)(romentry&0xFFFFF000));
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFE0, &c_pid0);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFE4, &c_pid1);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFE8, &c_pid2);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFEC, &c_pid3);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFD0, &c_pid4);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFF0, &c_cid0);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFF4, &c_cid1);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFF8, &c_cid2);
- mem_ap_read_atomic_u32(swjdp, (component_base&0xFFFFF000) | 0xFFC, &c_cid3);
+ 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_start, component_base;
+ unsigned part_num;
+ char *type, *full;
+
+ component_base = (uint32_t)((dbgbase & 0xFFFFF000)
+ + (int)(romentry & 0xFFFFF000));
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFE0, &c_pid0);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFE4, &c_pid1);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFE8, &c_pid2);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFEC, &c_pid3);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFD0, &c_pid4);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFF0, &c_cid0);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFF4, &c_cid1);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFF8, &c_cid2);
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xFFFFF000) | 0xFFC, &c_cid3);
component_start = component_base - 0x1000*(c_pid4 >> 4);
- command_print(cmd_ctx, "\t\tComponent base address 0x%" PRIx32 ", pid4 0x%" PRIx32 ", start address 0x%" PRIx32 "",component_base,c_pid4,component_start);
- command_print(cmd_ctx, "\t\tComponent cid1 0x%" PRIx32 ", class is %s",c_cid1,class_description[(c_cid1 >> 4)&0xF]); /* Se ARM DDI 0314 C Table 2.2 */
- command_print(cmd_ctx, "\t\tCID3 0x%" PRIx32 ", CID2 0x%" PRIx32 ", CID1 0x%" PRIx32 ", CID0, 0x%" PRIx32 "",c_cid3,c_cid2,c_cid1,c_cid0);
- command_print(cmd_ctx, "\t\tPID3 0x%" PRIx32 ", PID2 0x%" PRIx32 ", PID1 0x%" PRIx32 ", PID0, 0x%" PRIx32 "",c_pid3,c_pid2,c_pid1,c_pid0);
- /* For CoreSight components, (c_cid1 >> 4)&0xF == 9 , we also read 0xFC8 DevId and 0xFCC DevType */
+
+ command_print(cmd_ctx, "\t\tComponent base address 0x%" PRIx32
+ ", start address 0x%" PRIx32,
+ component_base, component_start);
+ command_print(cmd_ctx, "\t\tComponent class is 0x%x, %s",
+ (int) (c_cid1 >> 4) & 0xf,
+ /* See ARM IHI 0029B Table 3-3 */
+ class_description[(c_cid1 >> 4) & 0xf]);
+
+ /* CoreSight component? */
+ if (((c_cid1 >> 4) & 0x0f) == 9) {
+ uint32_t devtype;
+ unsigned minor;
+ char *major = "Reserved", *subtype = "Reserved";
+
+ mem_ap_read_atomic_u32(swjdp,
+ (component_base & 0xfffff000) | 0xfcc,
+ &devtype);
+ minor = (devtype >> 4) & 0x0f;
+ switch (devtype & 0x0f) {
+ case 0:
+ major = "Miscellaneous";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 4:
+ subtype = "Validation component";
+ break;
+ }
+ break;
+ case 1:
+ major = "Trace Sink";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Port";
+ break;
+ case 2:
+ subtype = "Buffer";
+ break;
+ }
+ break;
+ case 2:
+ major = "Trace Link";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Funnel, router";
+ break;
+ case 2:
+ subtype = "Filter";
+ break;
+ case 3:
+ subtype = "FIFO, buffer";
+ break;
+ }
+ break;
+ case 3:
+ major = "Trace Source";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Processor";
+ break;
+ case 2:
+ subtype = "DSP";
+ break;
+ case 3:
+ subtype = "Engine/Coprocessor";
+ break;
+ case 4:
+ subtype = "Bus";
+ break;
+ }
+ break;
+ case 4:
+ major = "Debug Control";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Trigger Matrix";
+ break;
+ case 2:
+ subtype = "Debug Auth";
+ break;
+ }
+ break;
+ case 5:
+ major = "Debug Logic";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Processor";
+ break;
+ case 2:
+ subtype = "DSP";
+ break;
+ case 3:
+ subtype = "Engine/Coprocessor";
+ break;
+ }
+ break;
+ }
+ command_print(cmd_ctx, "\t\tType is 0x%2.2x, %s, %s",
+ (unsigned) (devtype & 0xff),
+ major, subtype);
+ /* REVISIT also show 0xfc8 DevId */
+ }
+
+ if (!is_dap_cid_ok(cid3, cid2, cid1, cid0))
+ command_print(cmd_ctx, "\t\tCID3 0x%2.2" PRIx32
+ ", CID2 0x%2.2" PRIx32
+ ", CID1 0x%2.2" PRIx32
+ ", CID0 0x%2.2" PRIx32,
+ c_cid3, c_cid2, c_cid1, c_cid0);
+ command_print(cmd_ctx, "\t\tPeripheral ID[4..0] = hex "
+ "%2.2x %2.2x %2.2x %2.2x %2.2x",
+ (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), 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 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 0x4e0:
+ type = "Cortex-M3 ETM";
+ full = "(Embedded Trace)";
+ 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 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 0xc08:
+ type = "Cortex-A8 Debug";
+ full = "(Debug Unit)";
+ break;
+ default:
+ type = "-*- unrecognized -*-";
+ full = "";
+ break;
+ }
+ command_print(cmd_ctx, "\t\tPart is %s %s",
+ type, full);
}
else
{
projects / fw / openocd / commitdiff