static int mem_ap_setup_csw(struct adiv5_ap *ap, uint32_t csw)
{
- csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT |
- ap->csw_default;
+ csw |= ap->csw_default;
if (csw != ap->csw_value) {
/* LOG_DEBUG("DAP: Set CSW %x",csw); */
int retval = dap_queue_ap_write(ap, MEM_AP_REG_CSW, csw);
- if (retval != ERROR_OK)
+ if (retval != ERROR_OK) {
+ ap->csw_value = 0;
return retval;
+ }
ap->csw_value = csw;
}
return ERROR_OK;
if (!ap->tar_valid || tar != ap->tar_value) {
/* LOG_DEBUG("DAP: Set TAR %x",tar); */
int retval = dap_queue_ap_write(ap, MEM_AP_REG_TAR, tar);
- if (retval != ERROR_OK)
+ if (retval != ERROR_OK) {
+ ap->tar_valid = false;
return retval;
+ }
ap->tar_value = tar;
ap->tar_valid = true;
}
return 2;
case CSW_32BIT:
return 4;
+ default:
+ return 0;
}
case CSW_ADDRINC_PACKED:
return 4;
int ap_num;
/* Maximum AP number is 255 since the SELECT register is 8 bits */
- for (ap_num = 0; ap_num <= 255; ap_num++) {
+ for (ap_num = 0; ap_num <= DP_APSEL_MAX; ap_num++) {
/* read the IDR register of the Access Port */
uint32_t id_val = 0;
pc = (struct adiv5_private_config *)target->private_config;
if (pc == NULL) {
pc = calloc(1, sizeof(struct adiv5_private_config));
- pc->ap_num = -1;
+ pc->ap_num = DP_APSEL_INVALID;
target->private_config = pc;
}
e = Jim_GetOpt_Wide(goi, &ap_num);
if (e != JIM_OK)
return e;
+ if (ap_num < 0 || ap_num > DP_APSEL_MAX) {
+ Jim_SetResultString(goi->interp, "Invalid AP number!", -1);
+ return JIM_ERR;
+ }
pc->ap_num = ap_num;
} else {
if (goi->argc != 0) {
return JIM_ERR;
}
- if (pc->ap_num < 0) {
+ if (pc->ap_num == DP_APSEL_INVALID) {
Jim_SetResultString(goi->interp, "AP number not configured", -1);
return JIM_ERR;
}
- Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, (int)pc->ap_num));
+ Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, pc->ap_num));
}
break;
}
break;
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
- if (apsel >= 256)
+ if (apsel > DP_APSEL_MAX)
return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
- if (apsel >= 256)
+ if (apsel > DP_APSEL_MAX)
return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
COMMAND_HANDLER(dap_apsel_command)
{
struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
- uint32_t apsel, apid;
- int retval;
+ uint32_t apsel;
switch (CMD_ARGC) {
case 0:
- apsel = dap->apsel;
- break;
+ command_print(CMD_CTX, "%" PRIi32, dap->apsel);
+ return ERROR_OK;
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
- if (apsel >= 256)
+ if (apsel > DP_APSEL_MAX)
return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
}
dap->apsel = apsel;
-
- retval = dap_queue_ap_read(dap_ap(dap, apsel), AP_REG_IDR, &apid);
- if (retval != ERROR_OK)
- return retval;
- retval = dap_run(dap);
- if (retval != ERROR_OK)
- return retval;
-
- command_print(CMD_CTX, "ap %" PRIi32 " selected, identification register 0x%8.8" PRIx32,
- apsel, apid);
-
- return retval;
+ return ERROR_OK;
}
COMMAND_HANDLER(dap_apcsw_command)
{
struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
uint32_t apcsw = dap->ap[dap->apsel].csw_default;
- uint32_t sprot = 0;
+ uint32_t csw_val, csw_mask;
switch (CMD_ARGC) {
case 0:
- command_print(CMD_CTX, "apsel %" PRIi32 " selected, csw 0x%8.8" PRIx32,
- (dap->apsel), apcsw);
- break;
+ command_print(CMD_CTX, "ap %" PRIi32 " selected, csw 0x%8.8" PRIx32,
+ dap->apsel, apcsw);
+ return ERROR_OK;
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;
+ if (strcmp(CMD_ARGV[0], "default") == 0)
+ csw_val = CSW_DEFAULT;
else
- apcsw &= ~CSW_SPROT;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], csw_val);
+
+ if (csw_val & (CSW_SIZE_MASK | CSW_ADDRINC_MASK)) {
+ LOG_ERROR("CSW value cannot include 'Size' and 'AddrInc' bit-fields");
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ apcsw = csw_val;
+ break;
+ case 2:
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], csw_val);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], csw_mask);
+ if (csw_mask & (CSW_SIZE_MASK | CSW_ADDRINC_MASK)) {
+ LOG_ERROR("CSW mask cannot include 'Size' and 'AddrInc' bit-fields");
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ apcsw = (apcsw & ~csw_mask) | (csw_val & csw_mask);
break;
default:
return ERROR_COMMAND_SYNTAX_ERROR;
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
- if (apsel >= 256)
+ if (apsel > DP_APSEL_MAX)
return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
{
struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
uint32_t apsel, reg, value;
+ struct adiv5_ap *ap;
int retval;
if (CMD_ARGC < 2 || CMD_ARGC > 3)
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
- if (apsel >= 256)
+ if (apsel > DP_APSEL_MAX)
return ERROR_COMMAND_SYNTAX_ERROR;
+ ap = dap_ap(dap, apsel);
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], reg);
if (reg >= 256 || (reg & 3))
if (CMD_ARGC == 3) {
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], value);
- retval = dap_queue_ap_write(dap_ap(dap, apsel), reg, value);
+ switch (reg) {
+ case MEM_AP_REG_CSW:
+ ap->csw_default = 0; /* invalid, force write */
+ retval = mem_ap_setup_csw(ap, value);
+ break;
+ case MEM_AP_REG_TAR:
+ ap->tar_valid = false; /* invalid, force write */
+ retval = mem_ap_setup_tar(ap, value);
+ break;
+ default:
+ retval = dap_queue_ap_write(ap, reg, value);
+ break;
+ }
} else {
- retval = dap_queue_ap_read(dap_ap(dap, apsel), reg, &value);
+ retval = dap_queue_ap_read(ap, reg, &value);
}
if (retval == ERROR_OK)
retval = dap_run(dap);
return retval;
}
+COMMAND_HANDLER(dap_dpreg_command)
+{
+ struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
+ uint32_t reg, value;
+ int retval;
+
+ if (CMD_ARGC < 1 || CMD_ARGC > 2)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], reg);
+ if (reg >= 256 || (reg & 3))
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ if (CMD_ARGC == 2) {
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
+ retval = dap_queue_dp_write(dap, reg, value);
+ } else {
+ retval = dap_queue_dp_read(dap, reg, &value);
+ }
+ if (retval == ERROR_OK)
+ retval = dap_run(dap);
+
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (CMD_ARGC == 1)
+ command_print(CMD_CTX, "0x%08" PRIx32, value);
+
+ return retval;
+}
+
COMMAND_HANDLER(dap_ti_be_32_quirks_command)
{
struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
{
.name = "apsel",
.handler = dap_apsel_command,
- .mode = COMMAND_EXEC,
+ .mode = COMMAND_ANY,
.help = "Set the currently selected AP (default 0) "
"and display the result",
.usage = "[ap_num]",
{
.name = "apcsw",
.handler = dap_apcsw_command,
- .mode = COMMAND_EXEC,
- .help = "Set csw access bit ",
- .usage = "[sprot]",
+ .mode = COMMAND_ANY,
+ .help = "Set CSW default bits",
+ .usage = "[value [mask]]",
},
{
"(reg is byte address of a word register, like 0 4 8...)",
.usage = "ap_num reg [value]",
},
+ {
+ .name = "dpreg",
+ .handler = dap_dpreg_command,
+ .mode = COMMAND_EXEC,
+ .help = "read/write a register from DP "
+ "(reg is byte address (bank << 4 | reg) of a word register, like 0 4 8...)",
+ .usage = "reg [value]",
+ },
{
.name = "baseaddr",
.handler = dap_baseaddr_command,
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