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arm_adi_v5: Rename TAR and CSW setters and make them AP-specific 

Change-Id: I0ab66b259e929e6ba826ada9cf8e35614df46410
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3152
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
__archive__
Andreas Fritiofson 2015-12-06 15:50:24 +01:00
parent 00dbc185ee
commit 4da8915fb9
2 changed files with 25 additions and 31 deletions
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52
src/target/arm_adi_v5.c
View File

@ -116,30 +116,30 @@ void dap_ap_select(struct adiv5_dap *dap, uint8_t ap)
} }
} }
static int dap_setup_accessport_csw(struct adiv5_dap *dap, uint32_t csw) static int mem_ap_setup_csw(struct adiv5_ap *ap, uint32_t csw)
{ {
csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT | csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT |
dap->ap[dap_ap_get_select(dap)].csw_default; ap->csw_default;
if (csw != dap->ap[dap_ap_get_select(dap)].csw_value) { if (csw != ap->csw_value) {
/* LOG_DEBUG("DAP: Set CSW %x",csw); */ /* LOG_DEBUG("DAP: Set CSW %x",csw); */
int retval = dap_queue_ap_write(dap, MEM_AP_REG_CSW, csw); int retval = dap_queue_ap_write(ap->dap, MEM_AP_REG_CSW, csw);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
dap->ap[dap_ap_get_select(dap)].csw_value = csw; ap->csw_value = csw;
} }
return ERROR_OK; return ERROR_OK;
} }
static int dap_setup_accessport_tar(struct adiv5_dap *dap, uint32_t tar) static int mem_ap_setup_tar(struct adiv5_ap *ap, uint32_t tar)
{ {
if (tar != dap->ap[dap_ap_get_select(dap)].tar_value || if (tar != ap->tar_value ||
(dap->ap[dap_ap_get_select(dap)].csw_value & CSW_ADDRINC_MASK)) { (ap->csw_value & CSW_ADDRINC_MASK)) {
/* LOG_DEBUG("DAP: Set TAR %x",tar); */ /* LOG_DEBUG("DAP: Set TAR %x",tar); */
int retval = dap_queue_ap_write(dap, MEM_AP_REG_TAR, tar); int retval = dap_queue_ap_write(ap->dap, MEM_AP_REG_TAR, tar);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
dap->ap[dap_ap_get_select(dap)].tar_value = tar; ap->tar_value = tar;
} }
return ERROR_OK; return ERROR_OK;
} }
@ -153,9 +153,7 @@ static int dap_setup_accessport_tar(struct adiv5_dap *dap, uint32_t tar)
* If the CSW is configured for it, the TAR may be automatically * If the CSW is configured for it, the TAR may be automatically
* incremented after each transfer. * incremented after each transfer.
* *
* @todo Rename to reflect it being specifically a MEM-AP function. * @param ap The MEM-AP.
*
* @param dap The DAP connected to the MEM-AP.
* @param csw MEM-AP Control/Status Word (CSW) register to assign. If this * @param csw MEM-AP Control/Status Word (CSW) register to assign. If this
* matches the cached value, the register is not changed. * matches the cached value, the register is not changed.
* @param tar MEM-AP Transfer Address Register (TAR) to assign. If this * @param tar MEM-AP Transfer Address Register (TAR) to assign. If this
@ -163,13 +161,13 @@ static int dap_setup_accessport_tar(struct adiv5_dap *dap, uint32_t tar)
* *
* @return ERROR_OK if the transaction was properly queued, else a fault code. * @return ERROR_OK if the transaction was properly queued, else a fault code.
*/ */
int dap_setup_accessport(struct adiv5_dap *dap, uint32_t csw, uint32_t tar) static int mem_ap_setup_transfer(struct adiv5_ap *ap, uint32_t csw, uint32_t tar)
{ {
int retval; int retval;
retval = dap_setup_accessport_csw(dap, csw); retval = mem_ap_setup_csw(ap, csw);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
retval = dap_setup_accessport_tar(dap, tar); retval = mem_ap_setup_tar(ap, tar);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
return ERROR_OK; return ERROR_OK;
@ -194,7 +192,7 @@ static int mem_ap_read_u32(struct adiv5_ap *ap, uint32_t address,
/* Use banked addressing (REG_BDx) to avoid some link traffic /* Use banked addressing (REG_BDx) to avoid some link traffic
* (updating TAR) when reading several consecutive addresses. * (updating TAR) when reading several consecutive addresses.
*/ */
retval = dap_setup_accessport(ap->dap, CSW_32BIT | CSW_ADDRINC_OFF, retval = mem_ap_setup_transfer(ap, CSW_32BIT | CSW_ADDRINC_OFF,
address & 0xFFFFFFF0); address & 0xFFFFFFF0);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
@ -245,7 +243,7 @@ static int mem_ap_write_u32(struct adiv5_ap *ap, uint32_t address,
/* Use banked addressing (REG_BDx) to avoid some link traffic /* Use banked addressing (REG_BDx) to avoid some link traffic
* (updating TAR) when writing several consecutive addresses. * (updating TAR) when writing several consecutive addresses.
*/ */
retval = dap_setup_accessport(ap->dap, CSW_32BIT | CSW_ADDRINC_OFF, retval = mem_ap_setup_transfer(ap, CSW_32BIT | CSW_ADDRINC_OFF,
address & 0xFFFFFFF0); address & 0xFFFFFFF0);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
@ -327,7 +325,7 @@ static int mem_ap_write(struct adiv5_ap *ap, const uint8_t *buffer, uint32_t siz
if (ap->unaligned_access_bad && (address % size != 0)) if (ap->unaligned_access_bad && (address % size != 0))
return ERROR_TARGET_UNALIGNED_ACCESS; return ERROR_TARGET_UNALIGNED_ACCESS;
retval = dap_setup_accessport_tar(dap, address ^ addr_xor); retval = mem_ap_setup_tar(ap, address ^ addr_xor);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
@ -338,9 +336,9 @@ static int mem_ap_write(struct adiv5_ap *ap, const uint8_t *buffer, uint32_t siz
if (addrinc && ap->packed_transfers && nbytes >= 4 if (addrinc && ap->packed_transfers && nbytes >= 4
&& max_tar_block_size(ap->tar_autoincr_block, address) >= 4) { && max_tar_block_size(ap->tar_autoincr_block, address) >= 4) {
this_size = 4; this_size = 4;
retval = dap_setup_accessport_csw(dap, csw_size | CSW_ADDRINC_PACKED); retval = mem_ap_setup_csw(ap, csw_size | CSW_ADDRINC_PACKED);
} else { } else {
retval = dap_setup_accessport_csw(dap, csw_size | csw_addrincr); retval = mem_ap_setup_csw(ap, csw_size | csw_addrincr);
} }
if (retval != ERROR_OK) if (retval != ERROR_OK)
@ -385,7 +383,7 @@ static int mem_ap_write(struct adiv5_ap *ap, const uint8_t *buffer, uint32_t siz
/* Rewrite TAR if it wrapped or we're xoring addresses */ /* Rewrite TAR if it wrapped or we're xoring addresses */
if (addrinc && (addr_xor || (address % ap->tar_autoincr_block < size && nbytes > 0))) { if (addrinc && (addr_xor || (address % ap->tar_autoincr_block < size && nbytes > 0))) {
retval = dap_setup_accessport_tar(dap, address ^ addr_xor); retval = mem_ap_setup_tar(ap, address ^ addr_xor);
if (retval != ERROR_OK) if (retval != ERROR_OK)
break; break;
} }
@ -458,7 +456,7 @@ static int mem_ap_read(struct adiv5_ap *ap, uint8_t *buffer, uint32_t size, uint
return ERROR_FAIL; return ERROR_FAIL;
} }
retval = dap_setup_accessport_tar(dap, address); retval = mem_ap_setup_tar(ap, address);
if (retval != ERROR_OK) { if (retval != ERROR_OK) {
free(read_buf); free(read_buf);
return retval; return retval;
@ -474,9 +472,9 @@ static int mem_ap_read(struct adiv5_ap *ap, uint8_t *buffer, uint32_t size, uint
if (addrinc && ap->packed_transfers && nbytes >= 4 if (addrinc && ap->packed_transfers && nbytes >= 4
&& max_tar_block_size(ap->tar_autoincr_block, address) >= 4) { && max_tar_block_size(ap->tar_autoincr_block, address) >= 4) {
this_size = 4; this_size = 4;
retval = dap_setup_accessport_csw(dap, csw_size | CSW_ADDRINC_PACKED); retval = mem_ap_setup_csw(ap, csw_size | CSW_ADDRINC_PACKED);
} else { } else {
retval = dap_setup_accessport_csw(dap, csw_size | csw_addrincr); retval = mem_ap_setup_csw(ap, csw_size | csw_addrincr);
} }
if (retval != ERROR_OK) if (retval != ERROR_OK)
break; break;
@ -490,7 +488,7 @@ static int mem_ap_read(struct adiv5_ap *ap, uint8_t *buffer, uint32_t size, uint
/* Rewrite TAR if it wrapped */ /* Rewrite TAR if it wrapped */
if (addrinc && address % ap->tar_autoincr_block < size && nbytes > 0) { if (addrinc && address % ap->tar_autoincr_block < size && nbytes > 0) {
retval = dap_setup_accessport_tar(dap, address); retval = mem_ap_setup_tar(ap, address);
if (retval != ERROR_OK) if (retval != ERROR_OK)
break; break;
} }
@ -750,7 +748,7 @@ int mem_ap_init(struct adiv5_ap *ap)
dap_ap_select(dap, ap->ap_num); dap_ap_select(dap, ap->ap_num);
retval = dap_setup_accessport(dap, CSW_8BIT | CSW_ADDRINC_PACKED, 0); retval = mem_ap_setup_transfer(ap, CSW_8BIT | CSW_ADDRINC_PACKED, 0);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;

4
src/target/arm_adi_v5.h
View File

@ -455,10 +455,6 @@ static inline uint8_t dap_ap_get_select(struct adiv5_dap *swjdp)
/* AP selection applies to future AP transactions */ /* AP selection applies to future AP transactions */
void dap_ap_select(struct adiv5_dap *dap, uint8_t ap); void dap_ap_select(struct adiv5_dap *dap, uint8_t ap);
/* Queued AP transactions */
int dap_setup_accessport(struct adiv5_dap *swjdp,
uint32_t csw, uint32_t tar);
/* Queued MEM-AP memory mapped single word transfers with selection of ap */ /* Queued MEM-AP memory mapped single word transfers with selection of ap */
int mem_ap_sel_read_u32(struct adiv5_ap *ap, int mem_ap_sel_read_u32(struct adiv5_ap *ap,
uint32_t address, uint32_t *value); uint32_t address, uint32_t *value);