* 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, bool addr_incr) *
-* *
-* 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, 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 = CSW_ADDRINC_OFF;
+ 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;
- if (addr_incr)
- incr_flag = CSW_ADDRINC_SINGLE;
-
retval = dap_setup_accessport(dap, CSW_32BIT | incr_flag, address);
if (retval != ERROR_OK)
return retval;
for (writecount = 0; writecount < blocksize; writecount++) {
- uint32_t tmp;
- tmp = buf_get_u32(buffer + 4 * writecount, 0, 32);
- retval = dap_queue_ap_write(dap, AP_REG_DRW, tmp);
+ 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;
+ wcount -= blocksize;
if (addr_incr)
- address = address + 4 * blocksize;
- buffer = buffer + 4 * blocksize;
+ 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.
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?
- */
-
- /* Scan out first read */
- retval = adi_jtag_dp_scan(dap, JTAG_DP_APACC, AP_REG_DRW,
- DPAP_READ, 0, NULL, NULL);
- 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) {
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) {
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;
}
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,
Code Review / openocd.git / blobdiff