* 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. *
***************************************************************************/
/**
int dap_setup_accessport(struct adiv5_dap *dap, uint32_t csw, uint32_t tar)
{
int retval;
+ csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT |
+ dap->apcsw[dap->ap_current >> 24];
- csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT;
if (csw != dap->ap_csw_value) {
/* LOG_DEBUG("DAP: Set CSW %x",csw); */
retval = dap_queue_ap_write(dap, AP_REG_CSW, csw);
return dap_run(dap);
}
-/*****************************************************************************
-* *
-* mem_ap_write_buf(struct adiv5_dap *dap, uint8_t *buffer, int count, uint32_t address) *
-* *
-* Write a buffer in target order (little endian) *
-* *
-*****************************************************************************/
-int mem_ap_write_buf_u32(struct adiv5_dap *dap, const uint8_t *buffer, int count, uint32_t address)
+int mem_ap_write_buf_u32(struct adiv5_dap *dap, const uint8_t *buffer, int count, uint32_t address, bool addr_incr)
{
int wcount, blocksize, writecount, errorcount = 0, retval = ERROR_OK;
uint32_t adr = address;
- const uint8_t *pBuffer = buffer;
+ uint32_t incr_flag = addr_incr ? CSW_ADDRINC_SINGLE : CSW_ADDRINC_OFF;
- count >>= 2;
- wcount = count;
-
- /* if we have an unaligned access - reorder data */
- if (adr & 0x3u) {
- for (writecount = 0; writecount < count; writecount++) {
- int i;
- uint32_t outvalue;
- memcpy(&outvalue, pBuffer, sizeof(uint32_t));
-
- for (i = 0; i < 4; i++) {
- *((uint8_t *)pBuffer + (adr & 0x3)) = outvalue;
- outvalue >>= 8;
- adr++;
- }
- pBuffer += sizeof(uint32_t);
- }
- }
+ wcount = count >> 2;
while (wcount > 0) {
- /* Adjust to write blocks within boundaries aligned to the TAR autoincremnent size*/
+ /* Adjust to write blocks within boundaries aligned to the TAR auto-increment size */
blocksize = max_tar_block_size(dap->tar_autoincr_block, address);
if (wcount < blocksize)
blocksize = wcount;
if (blocksize == 0)
blocksize = 1;
- retval = dap_setup_accessport(dap, CSW_32BIT | CSW_ADDRINC_SINGLE, address);
+ retval = dap_setup_accessport(dap, CSW_32BIT | incr_flag, address);
if (retval != ERROR_OK)
return retval;
for (writecount = 0; writecount < blocksize; writecount++) {
- retval = dap_queue_ap_write(dap, AP_REG_DRW,
- *(uint32_t *) ((void *) (buffer + 4 * writecount)));
+ uint32_t outvalue = 0;
+ outvalue |= (uint32_t)*buffer++ << 8 * (adr++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (adr++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (adr++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (adr++ & 3);
+
+ retval = dap_queue_ap_write(dap, AP_REG_DRW, outvalue);
if (retval != ERROR_OK)
break;
}
retval = dap_run(dap);
if (retval == ERROR_OK) {
- wcount = wcount - blocksize;
- address = address + 4 * blocksize;
- buffer = buffer + 4 * blocksize;
+ wcount -= blocksize;
+ if (addr_incr)
+ address += 4 * blocksize;
} else
errorcount++;
const uint8_t *buffer, int count, uint32_t address)
{
int retval = ERROR_OK;
- int wcount, blocksize, writecount, i;
+ int wcount, blocksize, writecount;
wcount = count >> 1;
while (wcount > 0) {
int nbytes;
- /* Adjust to write blocks within boundaries aligned to the TAR autoincremnent size*/
+ /* Adjust to write blocks within boundaries aligned to the TAR auto-increment size */
blocksize = max_tar_block_size(dap->tar_autoincr_block, address);
if (wcount < blocksize)
return retval;
}
- address += nbytes >> 1;
+ address += nbytes;
+ buffer += nbytes;
} else {
- uint32_t outvalue;
- memcpy(&outvalue, buffer, sizeof(uint32_t));
+ assert(nbytes == 4);
- for (i = 0; i < nbytes; i++) {
- *((uint8_t *)buffer + (address & 0x3)) = outvalue;
- outvalue >>= 8;
- address++;
- }
+ uint32_t outvalue = 0;
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
- memcpy(&outvalue, buffer, sizeof(uint32_t));
retval = dap_queue_ap_write(dap,
AP_REG_DRW, outvalue);
if (retval != ERROR_OK)
}
}
- buffer += nbytes >> 1;
writecount -= nbytes >> 1;
} while (writecount);
{
int retval = ERROR_OK;
- if (count >= 4)
+ if (dap->packed_transfers && count >= 4)
return mem_ap_write_buf_packed_u16(dap, buffer, count, address);
while (count > 0) {
retval = dap_setup_accessport(dap, CSW_16BIT | CSW_ADDRINC_SINGLE, address);
if (retval != ERROR_OK)
return retval;
- uint16_t svalue;
- memcpy(&svalue, buffer, sizeof(uint16_t));
- uint32_t outvalue = (uint32_t)svalue << 8 * (address & 0x3);
+
+ uint32_t outvalue = 0;
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+
retval = dap_queue_ap_write(dap, AP_REG_DRW, outvalue);
if (retval != ERROR_OK)
break;
break;
count -= 2;
- address += 2;
- buffer += 2;
}
return retval;
const uint8_t *buffer, int count, uint32_t address)
{
int retval = ERROR_OK;
- int wcount, blocksize, writecount, i;
+ int wcount, blocksize, writecount;
wcount = count;
while (wcount > 0) {
int nbytes;
- /* Adjust to write blocks within boundaries aligned to the TAR autoincremnent size*/
+ /* Adjust to write blocks within boundaries aligned to the TAR auto-increment size */
blocksize = max_tar_block_size(dap->tar_autoincr_block, address);
if (wcount < blocksize)
}
address += nbytes;
+ buffer += nbytes;
} else {
- uint32_t outvalue;
- memcpy(&outvalue, buffer, sizeof(uint32_t));
+ assert(nbytes == 4);
- for (i = 0; i < nbytes; i++) {
- *((uint8_t *)buffer + (address & 0x3)) = outvalue;
- outvalue >>= 8;
- address++;
- }
+ uint32_t outvalue = 0;
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
- memcpy(&outvalue, buffer, sizeof(uint32_t));
retval = dap_queue_ap_write(dap,
AP_REG_DRW, outvalue);
if (retval != ERROR_OK)
}
}
- buffer += nbytes;
writecount -= nbytes;
} while (writecount);
{
int retval = ERROR_OK;
- if (count >= 4)
+ if (dap->packed_transfers && count >= 4)
return mem_ap_write_buf_packed_u8(dap, buffer, count, address);
while (count > 0) {
retval = dap_setup_accessport(dap, CSW_8BIT | CSW_ADDRINC_SINGLE, address);
if (retval != ERROR_OK)
return retval;
- uint32_t outvalue = (uint32_t)*buffer << 8 * (address & 0x3);
+ uint32_t outvalue = (uint32_t)*buffer++ << 8 * (address++ & 0x3);
retval = dap_queue_ap_write(dap, AP_REG_DRW, outvalue);
if (retval != ERROR_OK)
break;
break;
count--;
- address++;
- buffer++;
}
return retval;
}
-/* FIXME don't import ... this is a temporary workaround for the
- * mem_ap_read_buf_u32() mess, until it's no longer JTAG-specific.
- */
-extern int adi_jtag_dp_scan(struct adiv5_dap *dap,
- uint8_t instr, uint8_t reg_addr, uint8_t RnW,
- uint8_t *outvalue, uint8_t *invalue, uint8_t *ack);
-
/**
* Synchronously read a block of 32-bit words into a buffer
* @param dap The DAP connected to the MEM-AP.
* @param buffer where the words will be stored (in host byte order).
* @param count How many words to read.
* @param address Memory address from which to read words; all the
+ * @param addr_incr if true, increment the source address for each u32
* words must be readable by the currently selected MEM-AP.
*/
int mem_ap_read_buf_u32(struct adiv5_dap *dap, uint8_t *buffer,
- int count, uint32_t address)
+ int count, uint32_t address, bool addr_incr)
{
int wcount, blocksize, readcount, errorcount = 0, retval = ERROR_OK;
uint32_t adr = address;
uint8_t *pBuffer = buffer;
+ uint32_t incr_flag = CSW_ADDRINC_OFF;
count >>= 2;
wcount = count;
if (blocksize == 0)
blocksize = 1;
- retval = dap_setup_accessport(dap, CSW_32BIT | CSW_ADDRINC_SINGLE,
- address);
- if (retval != ERROR_OK)
- return retval;
-
- /* FIXME remove these three calls to adi_jtag_dp_scan(),
- * so this routine becomes transport-neutral. Be careful
- * not to cause performance problems with JTAG; would it
- * suffice to loop over dap_queue_ap_read(), or would that
- * be slower when JTAG is the chosen transport?
- */
+ if (addr_incr)
+ incr_flag = CSW_ADDRINC_SINGLE;
- /* Scan out first read */
- retval = adi_jtag_dp_scan(dap, JTAG_DP_APACC, AP_REG_DRW,
- DPAP_READ, 0, NULL, NULL);
+ retval = dap_setup_accessport(dap, CSW_32BIT | incr_flag,
+ address);
if (retval != ERROR_OK)
return retval;
- for (readcount = 0; readcount < blocksize - 1; readcount++) {
- /* Scan out next read; scan in posted value for the
- * previous one. Assumes read is acked "OK/FAULT",
- * and CTRL_STAT says that meant "OK".
- */
- retval = adi_jtag_dp_scan(dap, JTAG_DP_APACC, AP_REG_DRW,
- DPAP_READ, 0, buffer + 4 * readcount,
- &dap->ack);
- if (retval != ERROR_OK)
- return retval;
- }
- /* Scan in last posted value; RDBUFF has no other effect,
- * assuming ack is OK/FAULT and CTRL_STAT says "OK".
- */
- retval = adi_jtag_dp_scan(dap, JTAG_DP_DPACC, DP_RDBUFF,
- DPAP_READ, 0, buffer + 4 * readcount,
- &dap->ack);
- if (retval != ERROR_OK)
- return retval;
+ retval = dap_queue_ap_read_block(dap, AP_REG_DRW, blocksize, buffer);
retval = dap_run(dap);
if (retval != ERROR_OK) {
return retval;
}
wcount = wcount - blocksize;
- address += 4 * blocksize;
+ if (addr_incr)
+ address += 4 * blocksize;
buffer += 4 * blocksize;
}
uint32_t invalue, i;
int retval = ERROR_OK;
- if (count >= 4)
+ if (dap->packed_transfers && count >= 4)
return mem_ap_read_buf_packed_u16(dap, buffer, count, address);
while (count > 0) {
uint32_t invalue;
int retval = ERROR_OK;
- if (count >= 4)
+ if (dap->packed_transfers && count >= 4)
return mem_ap_read_buf_packed_u8(dap, buffer, count, address);
while (count > 0) {
return mem_ap_read_buf_u16(swjdp, buffer, count, address);
}
+int mem_ap_sel_read_buf_u32_noincr(struct adiv5_dap *swjdp, uint8_t ap,
+ uint8_t *buffer, int count, uint32_t address)
+{
+ dap_ap_select(swjdp, ap);
+ return mem_ap_read_buf_u32(swjdp, buffer, count, address, false);
+}
+
int mem_ap_sel_read_buf_u32(struct adiv5_dap *swjdp, uint8_t ap,
uint8_t *buffer, int count, uint32_t address)
{
dap_ap_select(swjdp, ap);
- return mem_ap_read_buf_u32(swjdp, buffer, count, address);
+ return mem_ap_read_buf_u32(swjdp, buffer, count, address, true);
}
int mem_ap_sel_write_buf_u8(struct adiv5_dap *swjdp, uint8_t ap,
const uint8_t *buffer, int count, uint32_t address)
{
dap_ap_select(swjdp, ap);
- return mem_ap_write_buf_u32(swjdp, buffer, count, address);
+ return mem_ap_write_buf_u32(swjdp, buffer, count, address, true);
+}
+
+int mem_ap_sel_write_buf_u32_noincr(struct adiv5_dap *swjdp, uint8_t ap,
+ const uint8_t *buffer, int count, uint32_t address)
+{
+ dap_ap_select(swjdp, ap);
+ return mem_ap_write_buf_u32(swjdp, buffer, count, address, false);
}
#define MDM_REG_STAT 0x00
dap_syssec(dap);
+ /* check that we support packed transfers */
+ uint32_t csw;
+
+ retval = dap_setup_accessport(dap, CSW_8BIT | CSW_ADDRINC_PACKED, 0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = dap_queue_ap_read(dap, AP_REG_CSW, &csw);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = dap_run(dap);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (csw & CSW_ADDRINC_PACKED)
+ dap->packed_transfers = true;
+ else
+ dap->packed_transfers = false;
+
+ LOG_DEBUG("MEM_AP Packed Transfers: %s",
+ dap->packed_transfers ? "enabled" : "disabled");
+
return ERROR_OK;
}
&& ((cid1 & 0x0f) == 0) && cid0 == 0x0d;
}
+/*
+ * This function checks the ID for each access port to find the requested Access Port type
+ */
+int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, uint8_t *ap_num_out)
+{
+ int ap;
+
+ /* Maximum AP number is 255 since the SELECT register is 8 bits */
+ for (ap = 0; ap <= 255; ap++) {
+
+ /* read the IDR register of the Access Port */
+ uint32_t id_val = 0;
+ dap_ap_select(dap, ap);
+
+ int retval = dap_queue_ap_read(dap, AP_REG_IDR, &id_val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = dap_run(dap);
+
+ /* IDR bits:
+ * 31-28 : Revision
+ * 27-24 : JEDEC bank (0x4 for ARM)
+ * 23-17 : JEDEC code (0x3B for ARM)
+ * 16 : Mem-AP
+ * 15-8 : Reserved
+ * 7-0 : AP Identity (1=AHB-AP 2=APB-AP 0x10=JTAG-AP)
+ */
+
+ /* Reading register for a non-existant AP should not cause an error,
+ * but just to be sure, try to continue searching if an error does happen.
+ */
+ if ((retval == ERROR_OK) && /* Register read success */
+ ((id_val & 0x0FFF0000) == 0x04770000) && /* Jedec codes match */
+ ((id_val & 0xFF) == type_to_find)) { /* type matches*/
+
+ LOG_DEBUG("Found %s at AP index: %d (IDR=0x%08X)",
+ (type_to_find == AP_TYPE_AHB_AP) ? "AHB-AP" :
+ (type_to_find == AP_TYPE_APB_AP) ? "APB-AP" :
+ (type_to_find == AP_TYPE_JTAG_AP) ? "JTAG-AP" : "Unknown",
+ ap, id_val);
+
+ *ap_num_out = ap;
+ return ERROR_OK;
+ }
+ }
+
+ LOG_DEBUG("No %s found",
+ (type_to_find == AP_TYPE_AHB_AP) ? "AHB-AP" :
+ (type_to_find == AP_TYPE_APB_AP) ? "APB-AP" :
+ (type_to_find == AP_TYPE_JTAG_AP) ? "JTAG-AP" : "Unknown");
+ return ERROR_FAIL;
+}
+
int dap_get_debugbase(struct adiv5_dap *dap, int ap,
uint32_t *out_dbgbase, uint32_t *out_apid)
{
type = "Cortex-M3 FBP";
full = "(Flash Patch and Breakpoint)";
break;
+ case 0x00c:
+ type = "Cortex-M4 SCS";
+ full = "(System Control Space)";
+ break;
case 0x00d:
type = "CoreSight ETM11";
full = "(Embedded Trace)";
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 0x9a1:
+ type = "Cortex-M4 TPUI";
+ full = "(Trace Port Interface Unit)";
+ break;
case 0xc08:
type = "Cortex-A8 Debug";
full = "(Debug Unit)";
return retval;
}
+COMMAND_HANDLER(dap_apcsw_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+
+ uint32_t apcsw = dap->apcsw[dap->apsel], sprot = 0;
+
+ switch (CMD_ARGC) {
+ case 0:
+ command_print(CMD_CTX, "apsel %" PRIi32 " selected, csw 0x%8.8" PRIx32,
+ (dap->apsel), apcsw);
+ break;
+ case 1:
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], sprot);
+ /* AP address is in bits 31:24 of DP_SELECT */
+ if (sprot > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ if (sprot)
+ apcsw |= CSW_SPROT;
+ else
+ apcsw &= ~CSW_SPROT;
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ dap->apcsw[dap->apsel] = apcsw;
+
+ return 0;
+}
+
+
+
COMMAND_HANDLER(dap_apid_command)
{
struct target *target = get_current_target(CMD_CTX);
"and display the result",
.usage = "[ap_num]",
},
+ {
+ .name = "apcsw",
+ .handler = dap_apcsw_command,
+ .mode = COMMAND_EXEC,
+ .help = "Set csw access bit ",
+ .usage = "[sprot]",
+ },
+
{
.name = "apid",
.handler = dap_apid_command,
projects / fw / openocd / blobdiff