return ERROR_OK;
}
-/** Holds registers of a CoreSight component */
+/** Holds registers and coordinates of a CoreSight component */
struct cs_component_vals {
+ struct adiv5_ap *ap;
+ target_addr_t component_base;
uint64_t pid;
uint32_t cid;
uint32_t devarch;
+ uint32_t devid;
uint32_t devtype_memtype;
};
uint32_t pid0, pid1, pid2, pid3, pid4;
int retval = ERROR_OK;
+ v->ap = ap;
+ v->component_base = component_base;
+
/* sort by offset to gain speed */
/*
- * Registers DEVARCH and DEVTYPE are valid on Class 0x9 devices
+ * Registers DEVARCH, DEVID and DEVTYPE are valid on Class 0x9 devices
* only, but are at offset above 0xf00, so can be read on any device
* without triggering error. Read them for eventual use on Class 0x9.
*/
if (retval == ERROR_OK)
retval = mem_ap_read_u32(ap, component_base + ARM_CS_C9_DEVARCH, &v->devarch);
+ if (retval == ERROR_OK)
+ retval = mem_ap_read_u32(ap, component_base + ARM_CS_C9_DEVID, &v->devid);
+
/* Same address as ARM_CS_C1_MEMTYPE */
if (retval == ERROR_OK)
retval = mem_ap_read_u32(ap, component_base + ARM_CS_C9_DEVTYPE, &v->devtype_memtype);
return ERROR_OK;
}
-static int dap_rom_display(struct command_invocation *cmd,
- struct adiv5_ap *ap, target_addr_t dbgbase, int depth)
+/* Broken ROM tables can have circular references. Stop after a while */
+#define ROM_TABLE_MAX_DEPTH (16)
+
+/* TODO: these prototypes will be removed in a following patch */
+static int dap_info_mem_ap_header(struct command_invocation *cmd,
+ int retval, struct adiv5_ap *ap,
+ target_addr_t dbgbase, uint32_t apid);
+static int dap_info_cs_component(struct command_invocation *cmd,
+ int retval, struct cs_component_vals *v, int depth);
+static int dap_info_rom_table_entry(struct command_invocation *cmd,
+ int retval, int depth,
+ unsigned int offset, uint32_t romentry);
+
+static int rtp_cs_component(struct command_invocation *cmd,
+ struct adiv5_ap *ap, target_addr_t dbgbase, int depth);
+
+static int rtp_rom_loop(struct command_invocation *cmd,
+ struct adiv5_ap *ap, target_addr_t base_address, int depth,
+ unsigned int max_entries)
{
- struct cs_component_vals v;
- unsigned int rom_num_entries;
- int retval;
- char tabs[16] = "";
+ assert(IS_ALIGNED(base_address, ARM_CS_ALIGN));
- if (depth > 16) {
- command_print(cmd, "\tTables too deep");
- return ERROR_FAIL;
- }
+ unsigned int offset = 0;
+ while (max_entries--) {
+ uint32_t romentry;
+ unsigned int saved_offset = offset;
- if (depth)
- snprintf(tabs, sizeof(tabs), "[L%02d] ", depth);
+ int retval = mem_ap_read_atomic_u32(ap, base_address + offset, &romentry);
+ offset += 4;
+ if (retval != ERROR_OK)
+ LOG_DEBUG("Failed read ROM table entry");
- target_addr_t base_addr = dbgbase & 0xFFFFFFFFFFFFF000ull;
- command_print(cmd, "\t\tComponent base address " TARGET_ADDR_FMT, base_addr);
+ retval = dap_info_rom_table_entry(cmd, retval, depth, saved_offset, romentry);
+ if (retval != ERROR_OK)
+ return retval;
- retval = rtp_read_cs_regs(ap, base_addr, &v);
- if (retval != ERROR_OK) {
- command_print(cmd, "\t\tCan't read component, the corresponding core might be turned off");
- return ERROR_OK; /* Don't abort recursion */
- }
+ if (romentry == 0) {
+ /* End of ROM table */
+ break;
+ }
- if (!is_valid_arm_cs_cidr(v.cid)) {
- command_print(cmd, "\t\tInvalid CID 0x%08" PRIx32, v.cid);
- return ERROR_OK; /* Don't abort recursion */
+ if (!(romentry & ARM_CS_ROMENTRY_PRESENT))
+ continue;
+
+ /* Recurse. "romentry" is signed */
+ target_addr_t component_base = base_address + (int32_t)(romentry & ARM_CS_ROMENTRY_OFFSET_MASK);
+ retval = rtp_cs_component(cmd, ap, component_base, depth + 1);
+ if (retval != ERROR_OK) {
+ /* TODO: do we need to send an ABORT before continuing? */
+ LOG_DEBUG("Ignore error parsing CoreSight component");
+ continue;
+ }
}
- /* component may take multiple 4K pages */
- uint32_t size = ARM_CS_PIDR_SIZE(v.pid);
- if (size > 0)
- command_print(cmd, "\t\tStart address " TARGET_ADDR_FMT, base_addr - 0x1000 * size);
+ return ERROR_OK;
+}
- command_print(cmd, "\t\tPeripheral ID 0x%010" PRIx64, v.pid);
+static int rtp_cs_component(struct command_invocation *cmd,
+ struct adiv5_ap *ap, target_addr_t base_address, int depth)
+{
+ struct cs_component_vals v;
+ int retval;
- const unsigned int class = ARM_CS_CIDR_CLASS(v.cid);
- const unsigned int part_num = ARM_CS_PIDR_PART(v.pid);
- unsigned int designer_id = ARM_CS_PIDR_DESIGNER(v.pid);
+ assert(IS_ALIGNED(base_address, ARM_CS_ALIGN));
- if (v.pid & ARM_CS_PIDR_JEDEC) {
- /* JEP106 code */
- command_print(cmd, "\t\tDesigner is 0x%03x, %s",
- designer_id, jep106_manufacturer(designer_id));
- } else {
- /* Legacy ASCII ID, clear invalid bits */
- designer_id &= 0x7f;
- command_print(cmd, "\t\tDesigner ASCII code 0x%02x, %s",
- designer_id, designer_id == 0x41 ? "ARM" : "<unknown>");
- }
+ if (depth > ROM_TABLE_MAX_DEPTH)
+ retval = ERROR_FAIL;
+ else
+ retval = rtp_read_cs_regs(ap, base_address, &v);
- const struct dap_part_nums *partnum = pidr_to_part_num(designer_id, part_num);
- command_print(cmd, "\t\tPart is 0x%03x, %s %s", part_num, partnum->type, partnum->full);
- command_print(cmd, "\t\tComponent class is 0x%x, %s", class, class_description[class]);
+ retval = dap_info_cs_component(cmd, retval, &v, depth);
+ if (retval != ERROR_OK)
+ return ERROR_OK; /* Don't abort recursion */
- if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
- if (v.devtype_memtype & ARM_CS_C1_MEMTYPE_SYSMEM_MASK)
- command_print(cmd, "\t\tMEMTYPE system memory present on bus");
- else
- command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
+ if (!is_valid_arm_cs_cidr(v.cid))
+ return ERROR_OK; /* Don't abort recursion */
- rom_num_entries = 960;
- } else if (class == ARM_CS_CLASS_0X9_CS_COMPONENT) {
- retval = dap_devtype_display(cmd, v.devtype_memtype);
- if (retval != ERROR_OK)
- return retval;
+ const unsigned int class = ARM_CS_CIDR_CLASS(v.cid);
- /* REVISIT also show ARM_CS_C9_DEVID */
+ if (class == ARM_CS_CLASS_0X1_ROM_TABLE)
+ return rtp_rom_loop(cmd, ap, base_address, depth, 960);
+ if (class == ARM_CS_CLASS_0X9_CS_COMPONENT) {
if ((v.devarch & ARM_CS_C9_DEVARCH_PRESENT) == 0)
return ERROR_OK;
- unsigned int architect_id = (v.devarch & ARM_CS_C9_DEVARCH_ARCHITECT_MASK) >> ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT;
- unsigned int revision = (v.devarch & ARM_CS_C9_DEVARCH_REVISION_MASK) >> ARM_CS_C9_DEVARCH_REVISION_SHIFT;
- command_print(cmd, "\t\tDev Arch is 0x%08" PRIx32 ", %s \"%s\" rev.%u", v.devarch,
- jep106_manufacturer(architect_id), class0x9_devarch_description(v.devarch),
- revision);
/* quit if not ROM table */
if ((v.devarch & DEVARCH_ID_MASK) != DEVARCH_ROM_C_0X9)
return ERROR_OK;
- rom_num_entries = 512;
- } else {
- /* Class other than 0x1 and 0x9 */
- return ERROR_OK;
- }
-
- /* Read ROM table entries from base address until we get 0x00000000 or reach the reserved area */
- for (unsigned int entry_offset = 0; entry_offset < 4 * rom_num_entries; entry_offset += 4) {
- uint32_t romentry;
- retval = mem_ap_read_atomic_u32(ap, base_addr + entry_offset, &romentry);
- if (retval != ERROR_OK)
- return retval;
- command_print(cmd, "\t%sROMTABLE[0x%x] = 0x%08" PRIx32 "",
- tabs, entry_offset, romentry);
- if (romentry & ARM_CS_ROMENTRY_PRESENT) {
- /* Recurse. "romentry" is signed */
- retval = dap_rom_display(cmd, ap, base_addr + (int32_t)(romentry & ARM_CS_ROMENTRY_OFFSET_MASK),
- depth + 1);
- if (retval != ERROR_OK)
- return retval;
- } else if (romentry != 0) {
- command_print(cmd, "\t\tComponent not present");
- } else {
- command_print(cmd, "\t%s\tEnd of ROM table", tabs);
- break;
- }
+ return rtp_rom_loop(cmd, ap, base_address, depth, 512);
}
+ /* Class other than 0x1 and 0x9 */
return ERROR_OK;
}
int retval;
uint32_t apid;
target_addr_t dbgbase;
- target_addr_t dbgaddr;
+ target_addr_t invalid_entry;
/* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */
retval = dap_get_debugbase(ap, &dbgbase, &apid);
+ retval = dap_info_mem_ap_header(cmd, retval, ap, dbgbase, apid);
if (retval != ERROR_OK)
return retval;
+ if (apid == 0)
+ return ERROR_FAIL;
+
+ /* NOTE: a MEM-AP may have a single CoreSight component that's
+ * not a ROM table ... or have no such components at all.
+ */
+ const unsigned int class = (apid & AP_REG_IDR_CLASS_MASK) >> AP_REG_IDR_CLASS_SHIFT;
+
+ if (class == AP_REG_IDR_CLASS_MEM_AP) {
+ if (is_64bit_ap(ap))
+ invalid_entry = 0xFFFFFFFFFFFFFFFFull;
+ else
+ invalid_entry = 0xFFFFFFFFul;
+
+ if (dbgbase != invalid_entry && (dbgbase & 0x3) != 0x2)
+ rtp_cs_component(cmd, ap, dbgbase & 0xFFFFFFFFFFFFF000ull, 0);
+ }
+
+ return ERROR_OK;
+}
+
+/* Actions for command "dap info" */
+
+static int dap_info_mem_ap_header(struct command_invocation *cmd,
+ int retval, struct adiv5_ap *ap,
+ target_addr_t dbgbase, uint32_t apid)
+{
+ target_addr_t invalid_entry;
+
+ if (retval != ERROR_OK) {
+ command_print(cmd, "\t\tCan't read MEM-AP, the corresponding core might be turned off");
+ return retval;
+ }
+
command_print(cmd, "AP ID register 0x%8.8" PRIx32, apid);
if (apid == 0) {
command_print(cmd, "No AP found at this ap 0x%x", ap->ap_num);
if (class == AP_REG_IDR_CLASS_MEM_AP) {
if (is_64bit_ap(ap))
- dbgaddr = 0xFFFFFFFFFFFFFFFFull;
+ invalid_entry = 0xFFFFFFFFFFFFFFFFull;
else
- dbgaddr = 0xFFFFFFFFul;
+ invalid_entry = 0xFFFFFFFFul;
command_print(cmd, "MEM-AP BASE " TARGET_ADDR_FMT, dbgbase);
- if (dbgbase == dbgaddr || (dbgbase & 0x3) == 0x2) {
+ if (dbgbase == invalid_entry || (dbgbase & 0x3) == 0x2) {
command_print(cmd, "\tNo ROM table present");
} else {
if (dbgbase & 0x01)
command_print(cmd, "\tValid ROM table present");
else
command_print(cmd, "\tROM table in legacy format");
+ }
+ }
+
+ return ERROR_OK;
+}
+
+static int dap_info_cs_component(struct command_invocation *cmd,
+ int retval, struct cs_component_vals *v, int depth)
+{
+ if (depth > ROM_TABLE_MAX_DEPTH) {
+ command_print(cmd, "\tTables too deep");
+ return ERROR_FAIL;
+ }
+
+ command_print(cmd, "\t\tComponent base address " TARGET_ADDR_FMT, v->component_base);
+
+ if (retval != ERROR_OK) {
+ command_print(cmd, "\t\tCan't read component, the corresponding core might be turned off");
+ return retval;
+ }
+
+ if (!is_valid_arm_cs_cidr(v->cid)) {
+ command_print(cmd, "\t\tInvalid CID 0x%08" PRIx32, v->cid);
+ return ERROR_OK; /* Don't abort recursion */
+ }
+
+ /* component may take multiple 4K pages */
+ uint32_t size = ARM_CS_PIDR_SIZE(v->pid);
+ if (size > 0)
+ command_print(cmd, "\t\tStart address " TARGET_ADDR_FMT, v->component_base - 0x1000 * size);
+
+ command_print(cmd, "\t\tPeripheral ID 0x%010" PRIx64, v->pid);
+
+ const unsigned int part_num = ARM_CS_PIDR_PART(v->pid);
+ unsigned int designer_id = ARM_CS_PIDR_DESIGNER(v->pid);
+
+ if (v->pid & ARM_CS_PIDR_JEDEC) {
+ /* JEP106 code */
+ command_print(cmd, "\t\tDesigner is 0x%03x, %s",
+ designer_id, jep106_manufacturer(designer_id));
+ } else {
+ /* Legacy ASCII ID, clear invalid bits */
+ designer_id &= 0x7f;
+ command_print(cmd, "\t\tDesigner ASCII code 0x%02x, %s",
+ designer_id, designer_id == 0x41 ? "ARM" : "<unknown>");
+ }
+
+ const struct dap_part_nums *partnum = pidr_to_part_num(designer_id, part_num);
+ command_print(cmd, "\t\tPart is 0x%03x, %s %s", part_num, partnum->type, partnum->full);
+
+ const unsigned int class = ARM_CS_CIDR_CLASS(v->cid);
+ command_print(cmd, "\t\tComponent class is 0x%x, %s", class, class_description[class]);
+
+ if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
+ if (v->devtype_memtype & ARM_CS_C1_MEMTYPE_SYSMEM_MASK)
+ command_print(cmd, "\t\tMEMTYPE system memory present on bus");
+ else
+ command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
+ return ERROR_OK;
+ }
+
+ if (class == ARM_CS_CLASS_0X9_CS_COMPONENT) {
+ dap_devtype_display(cmd, v->devtype_memtype);
- dap_rom_display(cmd, ap, dbgbase & 0xFFFFFFFFFFFFF000ull, 0);
+ /* REVISIT also show ARM_CS_C9_DEVID */
+
+ if ((v->devarch & ARM_CS_C9_DEVARCH_PRESENT) == 0)
+ return ERROR_OK;
+
+ unsigned int architect_id = ARM_CS_C9_DEVARCH_ARCHITECT(v->devarch);
+ unsigned int revision = ARM_CS_C9_DEVARCH_REVISION(v->devarch);
+ command_print(cmd, "\t\tDev Arch is 0x%08" PRIx32 ", %s \"%s\" rev.%u", v->devarch,
+ jep106_manufacturer(architect_id), class0x9_devarch_description(v->devarch),
+ revision);
+
+ if ((v->devarch & DEVARCH_ID_MASK) == DEVARCH_ROM_C_0X9) {
+ command_print(cmd, "\t\tType is ROM table");
+
+ if (v->devid & ARM_CS_C9_DEVID_SYSMEM_MASK)
+ command_print(cmd, "\t\tMEMTYPE system memory present on bus");
+ else
+ command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
}
+ return ERROR_OK;
+ }
+
+ /* Class other than 0x1 and 0x9 */
+ return ERROR_OK;
+}
+
+static int dap_info_rom_table_entry(struct command_invocation *cmd,
+ int retval, int depth,
+ unsigned int offset, uint32_t romentry)
+{
+ char tabs[16] = "";
+
+ if (depth)
+ snprintf(tabs, sizeof(tabs), "[L%02d] ", depth);
+
+ if (retval != ERROR_OK) {
+ command_print(cmd, "\t%sROMTABLE[0x%x] Read error", tabs, offset);
+ command_print(cmd, "\t\tUnable to continue");
+ command_print(cmd, "\t%s\tStop parsing of ROM table", tabs);
+ return retval;
+ }
+
+ command_print(cmd, "\t%sROMTABLE[0x%x] = 0x%08" PRIx32,
+ tabs, offset, romentry);
+
+ if (romentry == 0) {
+ command_print(cmd, "\t%s\tEnd of ROM table", tabs);
+ return ERROR_OK;
+ }
+
+ if (!(romentry & ARM_CS_ROMENTRY_PRESENT)) {
+ command_print(cmd, "\t\tComponent not present");
+ return ERROR_OK;
}
return ERROR_OK;
Code Review / openocd.git / blobdiff