* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
- * Copyright (C) 2009 by Oyvind Harboe *
+ * Copyright (C) 2009-2010 by Oyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2009-2010 by David Brownell *
* *
+ * Copyright (C) 2013 by Andreas Fritiofson *
+ * andreas.fritiofson@gmail.com *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* 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. *
***************************************************************************/
/**
* use either SWD or JTAG, and is called SWJ-DP. The most common type of AP
* is used to access memory mapped resources and is called a MEM-AP. Also a
* JTAG-AP is also defined, bridging to JTAG resources; those are uncommon.
+ *
+ * This programming interface allows DAP pipelined operations through a
+ * transaction queue. This primarily affects AP operations (such as using
+ * a MEM-AP to access memory or registers). If the current transaction has
+ * not finished by the time the next one must begin, and the ORUNDETECT bit
+ * is set in the DP_CTRL_STAT register, the SSTICKYORUN status is set and
+ * further AP operations will fail. There are two basic methods to avoid
+ * such overrun errors. One involves polling for status instead of using
+ * transaction piplining. The other involves adding delays to ensure the
+ * AP has enough time to complete one operation before starting the next
+ * one. (For JTAG these delays are controlled by memaccess_tck.)
*/
/*
#include "config.h"
#endif
+#include "jtag/interface.h"
+#include "arm.h"
#include "arm_adi_v5.h"
#include <helper/time_support.h>
-/*
- * Transaction Mode:
- * swjdp->trans_mode = TRANS_MODE_COMPOSITE;
- * Uses Overrun checking mode and does not do actual JTAG send/receive or transaction
- * result checking until swjdp_end_transaction()
- * This must be done before using or deallocating any return variables.
- * swjdp->trans_mode == TRANS_MODE_ATOMIC
- * All reads and writes to the AHB bus are checked for valid completion, and return values
- * are immediatley available.
-*/
-
-
/* ARM ADI Specification requires at least 10 bits used for TAR autoincrement */
/*
*/
static uint32_t max_tar_block_size(uint32_t tar_autoincr_block, uint32_t address)
{
- return (tar_autoincr_block - ((tar_autoincr_block - 1) & address)) >> 2;
+ return tar_autoincr_block - ((tar_autoincr_block - 1) & address);
}
/***************************************************************************
* *
- * DPACC and APACC scanchain access through JTAG-DP *
+ * DP and MEM-AP register access through APACC and DPACC *
* *
***************************************************************************/
/**
- * Scan DPACC or APACC using target ordered uint8_t buffers. No endianness
- * conversions are performed. See section 4.4.3 of the ADIv5 spec, which
- * discusses operations which access these registers.
- *
- * Note that only one scan is performed. If RnW is set, a separate scan
- * will be needed to collect the data which was read; the "invalue" collects
- * the posted result of a preceding operation, not the current one.
+ * Select one of the APs connected to the specified DAP. The
+ * selection is implicitly used with future AP transactions.
+ * This is a NOP if the specified AP is already selected.
*
- * @param swjdp the DAP
- * @param instr JTAG_DP_APACC (AP access) or JTAG_DP_DPACC (DP access)
- * @param reg_addr two significant bits; A[3:2]; for APACC access, the
- * SELECT register has more addressing bits.
- * @param RnW false iff outvalue will be written to the DP or AP
- * @param outvalue points to a 32-bit (little-endian) integer
- * @param invalue NULL, or points to a 32-bit (little-endian) integer
- * @param ack points to where the three bit JTAG_ACK_* code will be stored
+ * @param dap The DAP
+ * @param apsel Number of the AP to (implicitly) use with further
+ * transactions. This normally identifies a MEM-AP.
*/
-static int adi_jtag_dp_scan(struct swjdp_common *swjdp,
- uint8_t instr, uint8_t reg_addr, uint8_t RnW,
- uint8_t *outvalue, uint8_t *invalue, uint8_t *ack)
+void dap_ap_select(struct adiv5_dap *dap, uint8_t ap)
{
- struct arm_jtag *jtag_info = swjdp->jtag_info;
- struct scan_field fields[2];
- uint8_t out_addr_buf;
+ uint32_t new_ap = (ap << 24) & 0xFF000000;
- jtag_set_end_state(TAP_IDLE);
- arm_jtag_set_instr(jtag_info, instr, NULL);
-
- /* Add specified number of tck clocks before accessing memory bus */
-
- /* REVISIT these TCK cycles should be *AFTER* updating APACC, since
- * they provide more time for the (MEM) AP to complete the read ...
- * See "Minimum Response Time" for JTAG-DP, in the ADIv5 spec.
- */
- if ((instr == JTAG_DP_APACC)
- && ((reg_addr == AP_REG_DRW)
- || ((reg_addr & 0xF0) == AP_REG_BD0))
- && (swjdp->memaccess_tck != 0))
- jtag_add_runtest(swjdp->memaccess_tck, jtag_set_end_state(TAP_IDLE));
-
- /* Scan out a read or write operation using some DP or AP register.
- * For APACC access with any sticky error flag set, this is discarded.
- */
- fields[0].tap = jtag_info->tap;
- fields[0].num_bits = 3;
- buf_set_u32(&out_addr_buf, 0, 3, ((reg_addr >> 1) & 0x6) | (RnW & 0x1));
- fields[0].out_value = &out_addr_buf;
- fields[0].in_value = ack;
-
- /* NOTE: if we receive JTAG_ACK_WAIT, the previous operation did not
- * complete; data we write is discarded, data we read is unpredictable.
- * When overrun detect is active, STICKYORUN is set.
- */
-
- fields[1].tap = jtag_info->tap;
- fields[1].num_bits = 32;
- fields[1].out_value = outvalue;
- fields[1].in_value = invalue;
+ if (new_ap != dap->ap_current) {
+ dap->ap_current = new_ap;
+ /* Switching AP invalidates cached values.
+ * Values MUST BE UPDATED BEFORE AP ACCESS.
+ */
+ dap->ap_bank_value = -1;
+ dap->ap_csw_value = -1;
+ dap->ap_tar_value = -1;
+ }
+}
- jtag_add_dr_scan(2, fields, jtag_get_end_state());
+static int dap_setup_accessport_csw(struct adiv5_dap *dap, uint32_t csw)
+{
+ csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT |
+ dap->apcsw[dap->ap_current >> 24];
+ if (csw != dap->ap_csw_value) {
+ /* LOG_DEBUG("DAP: Set CSW %x",csw); */
+ int retval = dap_queue_ap_write(dap, AP_REG_CSW, csw);
+ if (retval != ERROR_OK)
+ return retval;
+ dap->ap_csw_value = csw;
+ }
return ERROR_OK;
}
-/* Scan out and in from host ordered uint32_t variables */
-static int adi_jtag_dp_scan_u32(struct swjdp_common *swjdp,
- uint8_t instr, uint8_t reg_addr, uint8_t RnW,
- uint32_t outvalue, uint32_t *invalue, uint8_t *ack)
+static int dap_setup_accessport_tar(struct adiv5_dap *dap, uint32_t tar)
{
- struct arm_jtag *jtag_info = swjdp->jtag_info;
- struct scan_field fields[2];
- uint8_t out_value_buf[4];
- uint8_t out_addr_buf;
+ if (tar != dap->ap_tar_value || dap->ap_csw_value & CSW_ADDRINC_MASK) {
+ /* LOG_DEBUG("DAP: Set TAR %x",tar); */
+ int retval = dap_queue_ap_write(dap, AP_REG_TAR, tar);
+ if (retval != ERROR_OK)
+ return retval;
+ dap->ap_tar_value = tar;
+ }
+ return ERROR_OK;
+}
- jtag_set_end_state(TAP_IDLE);
- arm_jtag_set_instr(jtag_info, instr, NULL);
+/**
+ * Queue transactions setting up transfer parameters for the
+ * currently selected MEM-AP.
+ *
+ * Subsequent transfers using registers like AP_REG_DRW or AP_REG_BD2
+ * initiate data reads or writes using memory or peripheral addresses.
+ * If the CSW is configured for it, the TAR may be automatically
+ * incremented after each transfer.
+ *
+ * @todo Rename to reflect it being specifically a MEM-AP function.
+ *
+ * @param dap The DAP connected to the MEM-AP.
+ * @param csw MEM-AP Control/Status Word (CSW) register to assign. If this
+ * matches the cached value, the register is not changed.
+ * @param tar MEM-AP Transfer Address Register (TAR) to assign. If this
+ * matches the cached address, the register is not changed.
+ *
+ * @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)
+{
+ int retval;
+ retval = dap_setup_accessport_csw(dap, csw);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_setup_accessport_tar(dap, tar);
+ if (retval != ERROR_OK)
+ return retval;
+ return ERROR_OK;
+}
- /* Add specified number of tck clocks before accessing memory bus */
+/**
+ * Asynchronous (queued) read of a word from memory or a system register.
+ *
+ * @param dap The DAP connected to the MEM-AP performing the read.
+ * @param address Address of the 32-bit word to read; it must be
+ * readable by the currently selected MEM-AP.
+ * @param value points to where the word will be stored when the
+ * transaction queue is flushed (assuming no errors).
+ *
+ * @return ERROR_OK for success. Otherwise a fault code.
+ */
+int mem_ap_read_u32(struct adiv5_dap *dap, uint32_t address,
+ uint32_t *value)
+{
+ int retval;
- /* REVISIT these TCK cycles should be *AFTER* updating APACC, since
- * they provide more time for the (MEM) AP to complete the read ...
+ /* Use banked addressing (REG_BDx) to avoid some link traffic
+ * (updating TAR) when reading several consecutive addresses.
*/
- if ((instr == JTAG_DP_APACC)
- && ((reg_addr == AP_REG_DRW)
- || ((reg_addr & 0xF0) == AP_REG_BD0))
- && (swjdp->memaccess_tck != 0))
- jtag_add_runtest(swjdp->memaccess_tck, jtag_set_end_state(TAP_IDLE));
-
- fields[0].tap = jtag_info->tap;
- fields[0].num_bits = 3;
- buf_set_u32(&out_addr_buf, 0, 3, ((reg_addr >> 1) & 0x6) | (RnW & 0x1));
- fields[0].out_value = &out_addr_buf;
- fields[0].in_value = ack;
-
- fields[1].tap = jtag_info->tap;
- fields[1].num_bits = 32;
- buf_set_u32(out_value_buf, 0, 32, outvalue);
- fields[1].out_value = out_value_buf;
- fields[1].in_value = NULL;
-
- if (invalue)
- {
- fields[1].in_value = (uint8_t *)invalue;
- jtag_add_dr_scan(2, fields, jtag_get_end_state());
+ retval = dap_setup_accessport(dap, CSW_32BIT | CSW_ADDRINC_OFF,
+ address & 0xFFFFFFF0);
+ if (retval != ERROR_OK)
+ return retval;
- jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t) invalue);
- } else
- {
+ return dap_queue_ap_read(dap, AP_REG_BD0 | (address & 0xC), value);
+}
- jtag_add_dr_scan(2, fields, jtag_get_end_state());
- }
+/**
+ * Synchronous read of a word from memory or a system register.
+ * As a side effect, this flushes any queued transactions.
+ *
+ * @param dap The DAP connected to the MEM-AP performing the read.
+ * @param address Address of the 32-bit word to read; it must be
+ * readable by the currently selected MEM-AP.
+ * @param value points to where the result will be stored.
+ *
+ * @return ERROR_OK for success; *value holds the result.
+ * Otherwise a fault code.
+ */
+int mem_ap_read_atomic_u32(struct adiv5_dap *dap, uint32_t address,
+ uint32_t *value)
+{
+ int retval;
- return ERROR_OK;
+ retval = mem_ap_read_u32(dap, address, value);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return dap_run(dap);
}
-/* scan_inout_check adds one extra inscan for DPAP_READ commands to read variables */
-static int scan_inout_check(struct swjdp_common *swjdp,
- uint8_t instr, uint8_t reg_addr, uint8_t RnW,
- uint8_t *outvalue, uint8_t *invalue)
+/**
+ * Asynchronous (queued) write of a word to memory or a system register.
+ *
+ * @param dap The DAP connected to the MEM-AP.
+ * @param address Address to be written; it must be writable by
+ * the currently selected MEM-AP.
+ * @param value Word that will be written to the address when transaction
+ * queue is flushed (assuming no errors).
+ *
+ * @return ERROR_OK for success. Otherwise a fault code.
+ */
+int mem_ap_write_u32(struct adiv5_dap *dap, uint32_t address,
+ uint32_t value)
{
- adi_jtag_dp_scan(swjdp, instr, reg_addr, RnW, outvalue, NULL, NULL);
-
- if ((RnW == DPAP_READ) && (invalue != NULL))
- adi_jtag_dp_scan(swjdp, JTAG_DP_DPACC,
- DP_RDBUFF, DPAP_READ, 0, invalue, &swjdp->ack);
+ int retval;
- /* In TRANS_MODE_ATOMIC all JTAG_DP_APACC transactions wait for
- * ack = OK/FAULT and the check CTRL_STAT
+ /* Use banked addressing (REG_BDx) to avoid some link traffic
+ * (updating TAR) when writing several consecutive addresses.
*/
- if ((instr == JTAG_DP_APACC)
- && (swjdp->trans_mode == TRANS_MODE_ATOMIC))
- return jtagdp_transaction_endcheck(swjdp);
+ retval = dap_setup_accessport(dap, CSW_32BIT | CSW_ADDRINC_OFF,
+ address & 0xFFFFFFF0);
+ if (retval != ERROR_OK)
+ return retval;
- return ERROR_OK;
+ return dap_queue_ap_write(dap, AP_REG_BD0 | (address & 0xC),
+ value);
}
-static int scan_inout_check_u32(struct swjdp_common *swjdp,
- uint8_t instr, uint8_t reg_addr, uint8_t RnW,
- uint32_t outvalue, uint32_t *invalue)
+/**
+ * Synchronous write of a word to memory or a system register.
+ * As a side effect, this flushes any queued transactions.
+ *
+ * @param dap The DAP connected to the MEM-AP.
+ * @param address Address to be written; it must be writable by
+ * the currently selected MEM-AP.
+ * @param value Word that will be written.
+ *
+ * @return ERROR_OK for success; the data was written. Otherwise a fault code.
+ */
+int mem_ap_write_atomic_u32(struct adiv5_dap *dap, uint32_t address,
+ uint32_t value)
{
- /* Issue the read or write */
- adi_jtag_dp_scan_u32(swjdp, instr, reg_addr, RnW, outvalue, NULL, NULL);
-
- /* For reads, collect posted value; RDBUFF has no other effect.
- * Assumes read gets acked with OK/FAULT, and CTRL_STAT says "OK".
- */
- if ((RnW == DPAP_READ) && (invalue != NULL))
- adi_jtag_dp_scan_u32(swjdp, JTAG_DP_DPACC,
- DP_RDBUFF, DPAP_READ, 0, invalue, &swjdp->ack);
+ int retval = mem_ap_write_u32(dap, address, value);
- /* In TRANS_MODE_ATOMIC all JTAG_DP_APACC transactions wait for
- * ack = OK/FAULT and then check CTRL_STAT
- */
- if ((instr == JTAG_DP_APACC)
- && (swjdp->trans_mode == TRANS_MODE_ATOMIC))
- return jtagdp_transaction_endcheck(swjdp);
+ if (retval != ERROR_OK)
+ return retval;
- return ERROR_OK;
+ return dap_run(dap);
}
-int jtagdp_transaction_endcheck(struct swjdp_common *swjdp)
+/**
+ * Synchronous write of a block of memory, using a specific access size.
+ *
+ * @param dap The DAP connected to the MEM-AP.
+ * @param buffer The data buffer to write. No particular alignment is assumed.
+ * @param size Which access size to use, in bytes. 1, 2 or 4.
+ * @param count The number of writes to do (in size units, not bytes).
+ * @param address Address to be written; it must be writable by the currently selected MEM-AP.
+ * @param addrinc Whether the target address should be increased for each write or not. This
+ * should normally be true, except when writing to e.g. a FIFO.
+ * @return ERROR_OK on success, otherwise an error code.
+ */
+int mem_ap_write(struct adiv5_dap *dap, const uint8_t *buffer, uint32_t size, uint32_t count,
+ uint32_t address, bool addrinc)
{
+ size_t nbytes = size * count;
+ const uint32_t csw_addrincr = addrinc ? CSW_ADDRINC_SINGLE : CSW_ADDRINC_OFF;
+ uint32_t csw_size;
+ uint32_t addr_xor;
int retval;
- uint32_t ctrlstat;
-
- /* too expensive to call keep_alive() here */
-#if 0
- /* Danger!!!! BROKEN!!!! */
- scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
- /* Danger!!!! BROKEN!!!! Why will jtag_execute_queue() fail here????
- R956 introduced the check on return value here and now Michael Schwingen reports
- that this code no longer works....
-
- https://lists.berlios.de/pipermail/openocd-development/2008-September/003107.html
- */
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
- LOG_ERROR("BUG: Why does this fail the first time????");
+ /* TI BE-32 Quirks mode:
+ * Writes on big-endian TMS570 behave very strangely. Observed behavior:
+ * size write address bytes written in order
+ * 4 TAR ^ 0 (val >> 24), (val >> 16), (val >> 8), (val)
+ * 2 TAR ^ 2 (val >> 8), (val)
+ * 1 TAR ^ 3 (val)
+ * For example, if you attempt to write a single byte to address 0, the processor
+ * will actually write a byte to address 3.
+ *
+ * To make writes of size < 4 work as expected, we xor a value with the address before
+ * setting the TAP, and we set the TAP after every transfer rather then relying on
+ * address increment. */
+
+ if (size == 4) {
+ csw_size = CSW_32BIT;
+ addr_xor = 0;
+ } else if (size == 2) {
+ csw_size = CSW_16BIT;
+ addr_xor = dap->ti_be_32_quirks ? 2 : 0;
+ } else if (size == 1) {
+ csw_size = CSW_8BIT;
+ addr_xor = dap->ti_be_32_quirks ? 3 : 0;
+ } else {
+ return ERROR_TARGET_UNALIGNED_ACCESS;
}
- /* Why??? second time it works??? */
-#endif
- /* Post CTRL/STAT read; discard any previous posted read value
- * but collect its ACK status.
- */
- scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
+ if (dap->unaligned_access_bad && (address % size != 0))
+ return ERROR_TARGET_UNALIGNED_ACCESS;
- swjdp->ack = swjdp->ack & 0x7;
+ retval = dap_setup_accessport_tar(dap, address ^ addr_xor);
+ if (retval != ERROR_OK)
+ return retval;
- /* common code path avoids calling timeval_ms() */
- if (swjdp->ack != JTAG_ACK_OK_FAULT)
- {
- long long then = timeval_ms();
-
- while (swjdp->ack != JTAG_ACK_OK_FAULT)
- {
- if (swjdp->ack == JTAG_ACK_WAIT)
- {
- if ((timeval_ms()-then) > 1000)
- {
- /* NOTE: this would be a good spot
- * to use JTAG_DP_ABORT.
- */
- LOG_WARNING("Timeout (1000ms) waiting "
- "for ACK=OK/FAULT "
- "in JTAG-DP transaction");
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
- else
- {
- LOG_WARNING("Invalid ACK %#x "
- "in JTAG-DP transaction",
- swjdp->ack);
- return ERROR_JTAG_DEVICE_ERROR;
- }
+ while (nbytes > 0) {
+ uint32_t this_size = size;
- scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- swjdp->ack = swjdp->ack & 0x7;
+ /* Select packed transfer if possible */
+ if (addrinc && dap->packed_transfers && nbytes >= 4
+ && max_tar_block_size(dap->tar_autoincr_block, address) >= 4) {
+ this_size = 4;
+ retval = dap_setup_accessport_csw(dap, csw_size | CSW_ADDRINC_PACKED);
+ } else {
+ retval = dap_setup_accessport_csw(dap, csw_size | csw_addrincr);
}
- }
- /* Check for STICKYERR and STICKYORUN */
- if (ctrlstat & (SSTICKYORUN | SSTICKYERR))
- {
- LOG_DEBUG("jtag-dp: CTRL/STAT error, 0x%" PRIx32, ctrlstat);
- /* Check power to debug regions */
- if ((ctrlstat & 0xf0000000) != 0xf0000000)
- {
- ahbap_debugport_init(swjdp);
+ if (retval != ERROR_OK)
+ break;
+
+ /* How many source bytes each transfer will consume, and their location in the DRW,
+ * depends on the type of transfer and alignment. See ARM document IHI0031C. */
+ uint32_t outvalue = 0;
+ if (dap->ti_be_32_quirks) {
+ switch (this_size) {
+ case 4:
+ outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (address++ & 3) ^ addr_xor);
+ outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (address++ & 3) ^ addr_xor);
+ outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (address++ & 3) ^ addr_xor);
+ outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (address++ & 3) ^ addr_xor);
+ break;
+ case 2:
+ outvalue |= (uint32_t)*buffer++ << 8 * (1 ^ (address++ & 3) ^ addr_xor);
+ outvalue |= (uint32_t)*buffer++ << 8 * (1 ^ (address++ & 3) ^ addr_xor);
+ break;
+ case 1:
+ outvalue |= (uint32_t)*buffer++ << 8 * (0 ^ (address++ & 3) ^ addr_xor);
+ break;
+ }
+ } else {
+ switch (this_size) {
+ case 4:
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ case 2:
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ case 1:
+ outvalue |= (uint32_t)*buffer++ << 8 * (address++ & 3);
+ }
}
- else
- {
- uint32_t mem_ap_csw, mem_ap_tar;
-
- /* Print information about last AHBAP access */
- LOG_ERROR("AHBAP Cached values: dp_select 0x%" PRIx32
- ", ap_csw 0x%" PRIx32 ", ap_tar 0x%" PRIx32,
- swjdp->dp_select_value, swjdp->ap_csw_value,
- swjdp->ap_tar_value);
- if (ctrlstat & SSTICKYORUN)
- LOG_ERROR("JTAG-DP OVERRUN - "
- "check clock or reduce jtag speed");
-
- if (ctrlstat & SSTICKYERR)
- LOG_ERROR("JTAG-DP STICKY ERROR");
-
- /* Clear Sticky Error Bits */
- scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- DP_CTRL_STAT, DPAP_WRITE,
- swjdp->dp_ctrl_stat | SSTICKYORUN
- | SSTICKYERR, NULL);
- scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- LOG_DEBUG("jtag-dp: CTRL/STAT 0x%" PRIx32, ctrlstat);
+ nbytes -= this_size;
- dap_ap_read_reg_u32(swjdp, AP_REG_CSW, &mem_ap_csw);
- dap_ap_read_reg_u32(swjdp, AP_REG_TAR, &mem_ap_tar);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- LOG_ERROR("MEM_AP_CSW 0x%" PRIx32 ", MEM_AP_TAR 0x%"
- PRIx32, mem_ap_csw, mem_ap_tar);
+ retval = dap_queue_ap_write(dap, AP_REG_DRW, outvalue);
+ if (retval != ERROR_OK)
+ break;
+ /* Rewrite TAR if it wrapped or we're xoring addresses */
+ if (addrinc && (addr_xor || (address % dap->tar_autoincr_block < size && nbytes > 0))) {
+ retval = dap_setup_accessport_tar(dap, address ^ addr_xor);
+ if (retval != ERROR_OK)
+ break;
}
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- return ERROR_JTAG_DEVICE_ERROR;
}
- return ERROR_OK;
-}
+ /* REVISIT: Might want to have a queued version of this function that does not run. */
+ if (retval == ERROR_OK)
+ retval = dap_run(dap);
-/***************************************************************************
- * *
- * DP and MEM-AP register access through APACC and DPACC *
- * *
-***************************************************************************/
+ if (retval != ERROR_OK) {
+ uint32_t tar;
+ if (dap_queue_ap_read(dap, AP_REG_TAR, &tar) == ERROR_OK
+ && dap_run(dap) == ERROR_OK)
+ LOG_ERROR("Failed to write memory at 0x%08"PRIx32, tar);
+ else
+ LOG_ERROR("Failed to write memory and, additionally, failed to find out where");
+ }
-static int dap_dp_write_reg(struct swjdp_common *swjdp,
- uint32_t value, uint8_t reg_addr)
-{
- return scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- reg_addr, DPAP_WRITE, value, NULL);
+ return retval;
}
-static int dap_dp_read_reg(struct swjdp_common *swjdp,
- uint32_t *value, uint8_t reg_addr)
+/**
+ * Synchronous read of a block of memory, using a specific access size.
+ *
+ * @param dap The DAP connected to the MEM-AP.
+ * @param buffer The data buffer to receive the data. No particular alignment is assumed.
+ * @param size Which access size to use, in bytes. 1, 2 or 4.
+ * @param count The number of reads to do (in size units, not bytes).
+ * @param address Address to be read; it must be readable by the currently selected MEM-AP.
+ * @param addrinc Whether the target address should be increased after each read or not. This
+ * should normally be true, except when reading from e.g. a FIFO.
+ * @return ERROR_OK on success, otherwise an error code.
+ */
+int mem_ap_read(struct adiv5_dap *dap, uint8_t *buffer, uint32_t size, uint32_t count,
+ uint32_t adr, bool addrinc)
{
- return scan_inout_check_u32(swjdp, JTAG_DP_DPACC,
- reg_addr, DPAP_READ, 0, value);
-}
+ size_t nbytes = size * count;
+ const uint32_t csw_addrincr = addrinc ? CSW_ADDRINC_SINGLE : CSW_ADDRINC_OFF;
+ uint32_t csw_size;
+ uint32_t address = adr;
+ int retval;
-int dap_ap_select(struct swjdp_common *swjdp,uint8_t apsel)
-{
- uint32_t select;
- select = (apsel << 24) & 0xFF000000;
+ /* TI BE-32 Quirks mode:
+ * Reads on big-endian TMS570 behave strangely differently than writes.
+ * They read from the physical address requested, but with DRW byte-reversed.
+ * For example, a byte read from address 0 will place the result in the high bytes of DRW.
+ * Also, packed 8-bit and 16-bit transfers seem to sometimes return garbage in some bytes,
+ * so avoid them. */
+
+ if (size == 4)
+ csw_size = CSW_32BIT;
+ else if (size == 2)
+ csw_size = CSW_16BIT;
+ else if (size == 1)
+ csw_size = CSW_8BIT;
+ else
+ return ERROR_TARGET_UNALIGNED_ACCESS;
+
+ if (dap->unaligned_access_bad && (adr % size != 0))
+ return ERROR_TARGET_UNALIGNED_ACCESS;
+
+ /* Allocate buffer to hold the sequence of DRW reads that will be made. This is a significant
+ * over-allocation if packed transfers are going to be used, but determining the real need at
+ * this point would be messy. */
+ uint32_t *read_buf = malloc(count * sizeof(uint32_t));
+ uint32_t *read_ptr = read_buf;
+ if (read_buf == NULL) {
+ LOG_ERROR("Failed to allocate read buffer");
+ return ERROR_FAIL;
+ }
- if (select != swjdp->apsel)
- {
- swjdp->apsel = select;
- /* Switching AP invalidates cached values */
- swjdp->dp_select_value = -1;
- swjdp->ap_csw_value = -1;
- swjdp->ap_tar_value = -1;
+ retval = dap_setup_accessport_tar(dap, address);
+ if (retval != ERROR_OK) {
+ free(read_buf);
+ return retval;
}
- return ERROR_OK;
-}
+ /* Queue up all reads. Each read will store the entire DRW word in the read buffer. How many
+ * useful bytes it contains, and their location in the word, depends on the type of transfer
+ * and alignment. */
+ while (nbytes > 0) {
+ uint32_t this_size = size;
+
+ /* Select packed transfer if possible */
+ if (addrinc && dap->packed_transfers && nbytes >= 4
+ && max_tar_block_size(dap->tar_autoincr_block, address) >= 4) {
+ this_size = 4;
+ retval = dap_setup_accessport_csw(dap, csw_size | CSW_ADDRINC_PACKED);
+ } else {
+ retval = dap_setup_accessport_csw(dap, csw_size | csw_addrincr);
+ }
+ if (retval != ERROR_OK)
+ break;
-static int dap_dp_bankselect(struct swjdp_common *swjdp, uint32_t ap_reg)
-{
- uint32_t select;
- select = (ap_reg & 0x000000F0);
+ retval = dap_queue_ap_read(dap, AP_REG_DRW, read_ptr++);
+ if (retval != ERROR_OK)
+ break;
- if (select != swjdp->dp_select_value)
- {
- dap_dp_write_reg(swjdp, select | swjdp->apsel, DP_SELECT);
- swjdp->dp_select_value = select;
+ nbytes -= this_size;
+ address += this_size;
+
+ /* Rewrite TAR if it wrapped */
+ if (addrinc && address % dap->tar_autoincr_block < size && nbytes > 0) {
+ retval = dap_setup_accessport_tar(dap, address);
+ if (retval != ERROR_OK)
+ break;
+ }
}
- return ERROR_OK;
-}
+ if (retval == ERROR_OK)
+ retval = dap_run(dap);
+
+ /* Restore state */
+ address = adr;
+ nbytes = size * count;
+ read_ptr = read_buf;
+
+ /* If something failed, read TAR to find out how much data was successfully read, so we can
+ * at least give the caller what we have. */
+ if (retval != ERROR_OK) {
+ uint32_t tar;
+ if (dap_queue_ap_read(dap, AP_REG_TAR, &tar) == ERROR_OK
+ && dap_run(dap) == ERROR_OK) {
+ LOG_ERROR("Failed to read memory at 0x%08"PRIx32, tar);
+ if (nbytes > tar - address)
+ nbytes = tar - address;
+ } else {
+ LOG_ERROR("Failed to read memory and, additionally, failed to find out where");
+ nbytes = 0;
+ }
+ }
-static int dap_ap_write_reg(struct swjdp_common *swjdp,
- uint32_t reg_addr, uint8_t *out_value_buf)
-{
- dap_dp_bankselect(swjdp, reg_addr);
- scan_inout_check(swjdp, JTAG_DP_APACC, reg_addr,
- DPAP_WRITE, out_value_buf, NULL);
+ /* Replay loop to populate caller's buffer from the correct word and byte lane */
+ while (nbytes > 0) {
+ uint32_t this_size = size;
- return ERROR_OK;
-}
+ if (addrinc && dap->packed_transfers && nbytes >= 4
+ && max_tar_block_size(dap->tar_autoincr_block, address) >= 4) {
+ this_size = 4;
+ }
-int dap_ap_write_reg_u32(struct swjdp_common *swjdp, uint32_t reg_addr, uint32_t value)
-{
- uint8_t out_value_buf[4];
+ if (dap->ti_be_32_quirks) {
+ switch (this_size) {
+ case 4:
+ *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
+ *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
+ case 2:
+ *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
+ case 1:
+ *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
+ }
+ } else {
+ switch (this_size) {
+ case 4:
+ *buffer++ = *read_ptr >> 8 * (address++ & 3);
+ *buffer++ = *read_ptr >> 8 * (address++ & 3);
+ case 2:
+ *buffer++ = *read_ptr >> 8 * (address++ & 3);
+ case 1:
+ *buffer++ = *read_ptr >> 8 * (address++ & 3);
+ }
+ }
- buf_set_u32(out_value_buf, 0, 32, value);
- dap_dp_bankselect(swjdp, reg_addr);
- scan_inout_check(swjdp, JTAG_DP_APACC, reg_addr,
- DPAP_WRITE, out_value_buf, NULL);
+ read_ptr++;
+ nbytes -= this_size;
+ }
- return ERROR_OK;
+ free(read_buf);
+ return retval;
}
-int dap_ap_read_reg_u32(struct swjdp_common *swjdp, uint32_t reg_addr, uint32_t *value)
+/*--------------------------------------------------------------------*/
+/* Wrapping function with selection of AP */
+/*--------------------------------------------------------------------*/
+int mem_ap_sel_read_u32(struct adiv5_dap *swjdp, uint8_t ap,
+ uint32_t address, uint32_t *value)
{
- dap_dp_bankselect(swjdp, reg_addr);
- scan_inout_check_u32(swjdp, JTAG_DP_APACC, reg_addr,
- DPAP_READ, 0, value);
-
- return ERROR_OK;
+ dap_ap_select(swjdp, ap);
+ return mem_ap_read_u32(swjdp, address, value);
}
-/***************************************************************************
- * *
- * AHB-AP access to memory and system registers on AHB bus *
- * *
-***************************************************************************/
-
-int dap_setup_accessport(struct swjdp_common *swjdp, uint32_t csw, uint32_t tar)
+int mem_ap_sel_write_u32(struct adiv5_dap *swjdp, uint8_t ap,
+ uint32_t address, uint32_t value)
{
- csw = csw | CSW_DBGSWENABLE | CSW_MASTER_DEBUG | CSW_HPROT;
- if (csw != swjdp->ap_csw_value)
- {
- /* LOG_DEBUG("DAP: Set CSW %x",csw); */
- dap_ap_write_reg_u32(swjdp, AP_REG_CSW, csw);
- swjdp->ap_csw_value = csw;
- }
- if (tar != swjdp->ap_tar_value)
- {
- /* LOG_DEBUG("DAP: Set TAR %x",tar); */
- dap_ap_write_reg_u32(swjdp, AP_REG_TAR, tar);
- swjdp->ap_tar_value = tar;
- }
- if (csw & CSW_ADDRINC_MASK)
- {
- /* Do not cache TAR value when autoincrementing */
- swjdp->ap_tar_value = -1;
- }
- return ERROR_OK;
+ dap_ap_select(swjdp, ap);
+ return mem_ap_write_u32(swjdp, address, value);
}
-/*****************************************************************************
-* *
-* mem_ap_read_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t *value) *
-* *
-* Read a uint32_t value from memory or system register *
-* Functionally equivalent to target_read_u32(target, address, uint32_t *value), *
-* but with less overhead *
-*****************************************************************************/
-int mem_ap_read_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t *value)
+int mem_ap_sel_read_atomic_u32(struct adiv5_dap *swjdp, uint8_t ap,
+ uint32_t address, uint32_t *value)
{
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
-
- dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_OFF, address & 0xFFFFFFF0);
- dap_ap_read_reg_u32(swjdp, AP_REG_BD0 | (address & 0xC), value);
-
- return ERROR_OK;
+ dap_ap_select(swjdp, ap);
+ return mem_ap_read_atomic_u32(swjdp, address, value);
}
-int mem_ap_read_atomic_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t *value)
+int mem_ap_sel_write_atomic_u32(struct adiv5_dap *swjdp, uint8_t ap,
+ uint32_t address, uint32_t value)
{
- mem_ap_read_u32(swjdp, address, value);
-
- return jtagdp_transaction_endcheck(swjdp);
+ dap_ap_select(swjdp, ap);
+ return mem_ap_write_atomic_u32(swjdp, address, value);
}
-/*****************************************************************************
-* *
-* mem_ap_write_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t value) *
-* *
-* Write a uint32_t value to memory or memory mapped register *
-* *
-*****************************************************************************/
-int mem_ap_write_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t value)
+int mem_ap_sel_read_buf(struct adiv5_dap *swjdp, uint8_t ap,
+ uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address)
{
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
-
- dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_OFF, address & 0xFFFFFFF0);
- dap_ap_write_reg_u32(swjdp, AP_REG_BD0 | (address & 0xC), value);
-
- return ERROR_OK;
+ dap_ap_select(swjdp, ap);
+ return mem_ap_read(swjdp, buffer, size, count, address, true);
}
-int mem_ap_write_atomic_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t value)
+int mem_ap_sel_write_buf(struct adiv5_dap *swjdp, uint8_t ap,
+ const uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address)
{
- mem_ap_write_u32(swjdp, address, value);
-
- return jtagdp_transaction_endcheck(swjdp);
+ dap_ap_select(swjdp, ap);
+ return mem_ap_write(swjdp, buffer, size, count, address, true);
}
-/*****************************************************************************
-* *
-* mem_ap_write_buf(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address) *
-* *
-* Write a buffer in target order (little endian) *
-* *
-*****************************************************************************/
-int mem_ap_write_buf_u32(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address)
+int mem_ap_sel_read_buf_noincr(struct adiv5_dap *swjdp, uint8_t ap,
+ uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address)
{
- int wcount, blocksize, writecount, errorcount = 0, retval = ERROR_OK;
- uint32_t adr = address;
- uint8_t* pBuffer = buffer;
-
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
-
- 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);
- }
- }
-
- while (wcount > 0)
- {
- /* Adjust to write blocks within boundaries aligned to the TAR autoincremnent size*/
- blocksize = max_tar_block_size(swjdp->tar_autoincr_block, address);
- if (wcount < blocksize)
- blocksize = wcount;
+ dap_ap_select(swjdp, ap);
+ return mem_ap_read(swjdp, buffer, size, count, address, false);
+}
- /* handle unaligned data at 4k boundary */
- if (blocksize == 0)
- blocksize = 1;
+int mem_ap_sel_write_buf_noincr(struct adiv5_dap *swjdp, uint8_t ap,
+ const uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address)
+{
+ dap_ap_select(swjdp, ap);
+ return mem_ap_write(swjdp, buffer, size, count, address, false);
+}
- dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_SINGLE, address);
+/*--------------------------------------------------------------------------*/
- for (writecount = 0; writecount < blocksize; writecount++)
- {
- dap_ap_write_reg(swjdp, AP_REG_DRW, buffer + 4 * writecount);
- }
- if (jtagdp_transaction_endcheck(swjdp) == ERROR_OK)
- {
- wcount = wcount - blocksize;
- address = address + 4 * blocksize;
- buffer = buffer + 4 * blocksize;
- }
- else
- {
- errorcount++;
- }
+#define DAP_POWER_DOMAIN_TIMEOUT (10)
- if (errorcount > 1)
- {
- LOG_WARNING("Block write error address 0x%" PRIx32 ", wcount 0x%x", address, wcount);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
+/* FIXME don't import ... just initialize as
+ * part of DAP transport setup
+*/
+extern const struct dap_ops jtag_dp_ops;
- return retval;
-}
+/*--------------------------------------------------------------------------*/
-static int mem_ap_write_buf_packed_u16(struct swjdp_common *swjdp,
- uint8_t *buffer, int count, uint32_t address)
+/**
+ * Initialize a DAP. This sets up the power domains, prepares the DP
+ * for further use, and arranges to use AP #0 for all AP operations
+ * until dap_ap-select() changes that policy.
+ *
+ * @param dap The DAP being initialized.
+ *
+ * @todo Rename this. We also need an initialization scheme which account
+ * for SWD transports not just JTAG; that will need to address differences
+ * in layering. (JTAG is useful without any debug target; but not SWD.)
+ * And this may not even use an AHB-AP ... e.g. DAP-Lite uses an APB-AP.
+ */
+int ahbap_debugport_init(struct adiv5_dap *dap)
{
- int retval = ERROR_OK;
- int wcount, blocksize, writecount, i;
+ int retval;
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+ LOG_DEBUG(" ");
- wcount = count >> 1;
+ /* JTAG-DP or SWJ-DP, in JTAG mode
+ * ... for SWD mode this is patched as part
+ * of link switchover
+ */
+ if (!dap->ops)
+ dap->ops = &jtag_dp_ops;
- while (wcount > 0)
- {
- int nbytes;
-
- /* Adjust to write blocks within boundaries aligned to the TAR autoincremnent size*/
- blocksize = max_tar_block_size(swjdp->tar_autoincr_block, address);
-
- if (wcount < blocksize)
- blocksize = wcount;
-
- /* handle unaligned data at 4k boundary */
- if (blocksize == 0)
- blocksize = 1;
-
- dap_setup_accessport(swjdp, CSW_16BIT | CSW_ADDRINC_PACKED, address);
- writecount = blocksize;
-
- do
- {
- nbytes = MIN((writecount << 1), 4);
-
- if (nbytes < 4)
- {
- if (mem_ap_write_buf_u16(swjdp, buffer,
- nbytes, address) != ERROR_OK)
- {
- LOG_WARNING("Block write error address "
- "0x%" PRIx32 ", count 0x%x",
- address, count);
- return ERROR_JTAG_DEVICE_ERROR;
- }
+ /* Default MEM-AP setup.
+ *
+ * REVISIT AP #0 may be an inappropriate default for this.
+ * Should we probe, or take a hint from the caller?
+ * Presumably we can ignore the possibility of multiple APs.
+ */
+ dap->ap_current = !0;
+ dap_ap_select(dap, 0);
+ dap->last_read = NULL;
- address += nbytes >> 1;
- }
- else
- {
- uint32_t outvalue;
- memcpy(&outvalue, buffer, sizeof(uint32_t));
-
- for (i = 0; i < nbytes; i++)
- {
- *((uint8_t*)buffer + (address & 0x3)) = outvalue;
- outvalue >>= 8;
- address++;
- }
+ /* DP initialization */
- memcpy(&outvalue, buffer, sizeof(uint32_t));
- dap_ap_write_reg_u32(swjdp, AP_REG_DRW, outvalue);
- if (jtagdp_transaction_endcheck(swjdp) != ERROR_OK)
- {
- LOG_WARNING("Block write error address "
- "0x%" PRIx32 ", count 0x%x",
- address, count);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
+ dap->dp_bank_value = 0;
- buffer += nbytes >> 1;
- writecount -= nbytes >> 1;
+ retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
+ if (retval != ERROR_OK)
+ return retval;
- } while (writecount);
- wcount -= blocksize;
- }
+ retval = dap_queue_dp_write(dap, DP_CTRL_STAT, SSTICKYERR);
+ if (retval != ERROR_OK)
+ return retval;
- return retval;
-}
+ retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
+ if (retval != ERROR_OK)
+ return retval;
-int mem_ap_write_buf_u16(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address)
-{
- int retval = ERROR_OK;
+ dap->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ;
+ retval = dap_queue_dp_write(dap, DP_CTRL_STAT, dap->dp_ctrl_stat);
+ if (retval != ERROR_OK)
+ return retval;
- if (count >= 4)
- return mem_ap_write_buf_packed_u16(swjdp, buffer, count, address);
+ /* Check that we have debug power domains activated */
+ LOG_DEBUG("DAP: wait CDBGPWRUPACK");
+ retval = dap_dp_poll_register(dap, DP_CTRL_STAT,
+ CDBGPWRUPACK, CDBGPWRUPACK,
+ DAP_POWER_DOMAIN_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+ LOG_DEBUG("DAP: wait CSYSPWRUPACK");
+ retval = dap_dp_poll_register(dap, DP_CTRL_STAT,
+ CSYSPWRUPACK, CSYSPWRUPACK,
+ DAP_POWER_DOMAIN_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
- while (count > 0)
- {
- dap_setup_accessport(swjdp, CSW_16BIT | CSW_ADDRINC_SINGLE, address);
- uint16_t svalue;
- memcpy(&svalue, buffer, sizeof(uint16_t));
- uint32_t outvalue = (uint32_t)svalue << 8 * (address & 0x3);
- dap_ap_write_reg_u32(swjdp, AP_REG_DRW, outvalue);
- retval = jtagdp_transaction_endcheck(swjdp);
- count -= 2;
- address += 2;
- buffer += 2;
- }
+ retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
+ if (retval != ERROR_OK)
+ return retval;
+ /* With debug power on we can activate OVERRUN checking */
+ dap->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ | CORUNDETECT;
+ retval = dap_queue_dp_write(dap, DP_CTRL_STAT, dap->dp_ctrl_stat);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
+ if (retval != ERROR_OK)
+ return retval;
- return retval;
-}
+ /* check that we support packed transfers */
+ uint32_t csw, cfg;
-static int mem_ap_write_buf_packed_u8(struct swjdp_common *swjdp,
- uint8_t *buffer, int count, uint32_t address)
-{
- int retval = ERROR_OK;
- int wcount, blocksize, writecount, i;
+ retval = dap_setup_accessport(dap, CSW_8BIT | CSW_ADDRINC_PACKED, 0);
+ if (retval != ERROR_OK)
+ return retval;
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+ retval = dap_queue_ap_read(dap, AP_REG_CSW, &csw);
+ if (retval != ERROR_OK)
+ return retval;
- wcount = count;
+ retval = dap_queue_ap_read(dap, AP_REG_CFG, &cfg);
+ if (retval != ERROR_OK)
+ return retval;
- while (wcount > 0)
- {
- int nbytes;
+ retval = dap_run(dap);
+ if (retval != ERROR_OK)
+ return retval;
- /* Adjust to write blocks within boundaries aligned to the TAR autoincremnent size*/
- blocksize = max_tar_block_size(swjdp->tar_autoincr_block, address);
+ if (csw & CSW_ADDRINC_PACKED)
+ dap->packed_transfers = true;
+ else
+ dap->packed_transfers = false;
- if (wcount < blocksize)
- blocksize = wcount;
+ /* Packed transfers on TI BE-32 processors do not work correctly in
+ * many cases. */
+ if (dap->ti_be_32_quirks)
+ dap->packed_transfers = false;
- dap_setup_accessport(swjdp, CSW_8BIT | CSW_ADDRINC_PACKED, address);
- writecount = blocksize;
+ LOG_DEBUG("MEM_AP Packed Transfers: %s",
+ dap->packed_transfers ? "enabled" : "disabled");
- do
- {
- nbytes = MIN(writecount, 4);
+ /* The ARM ADI spec leaves implementation-defined whether unaligned
+ * memory accesses work, only work partially, or cause a sticky error.
+ * On TI BE-32 processors, reads seem to return garbage in some bytes
+ * and unaligned writes seem to cause a sticky error.
+ * TODO: it would be nice to have a way to detect whether unaligned
+ * operations are supported on other processors. */
+ dap->unaligned_access_bad = dap->ti_be_32_quirks;
- if (nbytes < 4)
- {
- if (mem_ap_write_buf_u8(swjdp, buffer, nbytes, address) != ERROR_OK)
- {
- LOG_WARNING("Block write error address "
- "0x%" PRIx32 ", count 0x%x",
- address, count);
- return ERROR_JTAG_DEVICE_ERROR;
- }
+ LOG_DEBUG("MEM_AP CFG: large data %d, long address %d, big-endian %d",
+ !!(cfg & 0x04), !!(cfg & 0x02), !!(cfg & 0x01));
- address += nbytes;
- }
- else
- {
- uint32_t outvalue;
- memcpy(&outvalue, buffer, sizeof(uint32_t));
-
- for (i = 0; i < nbytes; i++)
- {
- *((uint8_t*)buffer + (address & 0x3)) = outvalue;
- outvalue >>= 8;
- address++;
- }
-
- memcpy(&outvalue, buffer, sizeof(uint32_t));
- dap_ap_write_reg_u32(swjdp, AP_REG_DRW, outvalue);
- if (jtagdp_transaction_endcheck(swjdp) != ERROR_OK)
- {
- LOG_WARNING("Block write error address "
- "0x%" PRIx32 ", count 0x%x",
- address, count);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
-
- buffer += nbytes;
- writecount -= nbytes;
-
- } while (writecount);
- wcount -= blocksize;
- }
-
- return retval;
+ return ERROR_OK;
}
-int mem_ap_write_buf_u8(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address)
-{
- int retval = ERROR_OK;
-
- if (count >= 4)
- return mem_ap_write_buf_packed_u8(swjdp, buffer, count, address);
-
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
-
- while (count > 0)
- {
- dap_setup_accessport(swjdp, CSW_8BIT | CSW_ADDRINC_SINGLE, address);
- uint32_t outvalue = (uint32_t)*buffer << 8 * (address & 0x3);
- dap_ap_write_reg_u32(swjdp, AP_REG_DRW, outvalue);
- retval = jtagdp_transaction_endcheck(swjdp);
- count--;
- address++;
- buffer++;
- }
+/* CID interpretation -- see ARM IHI 0029B section 3
+ * and ARM IHI 0031A table 13-3.
+ */
+static const char *class_description[16] = {
+ "Reserved", "ROM table", "Reserved", "Reserved",
+ "Reserved", "Reserved", "Reserved", "Reserved",
+ "Reserved", "CoreSight component", "Reserved", "Peripheral Test Block",
+ "Reserved", "OptimoDE DESS",
+ "Generic IP component", "PrimeCell or System component"
+};
- return retval;
+static bool is_dap_cid_ok(uint32_t cid3, uint32_t cid2, uint32_t cid1, uint32_t cid0)
+{
+ return cid3 == 0xb1 && cid2 == 0x05
+ && ((cid1 & 0x0f) == 0) && cid0 == 0x0d;
}
-/*********************************************************************************
-* *
-* mem_ap_read_buf_u32(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address) *
-* *
-* Read block fast in target order (little endian) into a buffer *
-* *
-**********************************************************************************/
-int mem_ap_read_buf_u32(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address)
+/*
+ * 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 wcount, blocksize, readcount, errorcount = 0, retval = ERROR_OK;
- uint32_t adr = address;
- uint8_t* pBuffer = buffer;
+ int ap;
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+ /* Maximum AP number is 255 since the SELECT register is 8 bits */
+ for (ap = 0; ap <= 255; ap++) {
- count >>= 2;
- wcount = count;
+ /* read the IDR register of the Access Port */
+ uint32_t id_val = 0;
+ dap_ap_select(dap, ap);
- while (wcount > 0)
- {
- /* Adjust to read blocks within boundaries aligned to the TAR autoincremnent size*/
- blocksize = max_tar_block_size(swjdp->tar_autoincr_block, address);
- if (wcount < blocksize)
- blocksize = wcount;
-
- /* handle unaligned data at 4k boundary */
- if (blocksize == 0)
- blocksize = 1;
-
- dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_SINGLE, address);
-
- /* Scan out first read */
- adi_jtag_dp_scan(swjdp, JTAG_DP_APACC, AP_REG_DRW,
- DPAP_READ, 0, NULL, NULL);
- 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".
- */
- adi_jtag_dp_scan(swjdp, JTAG_DP_APACC, AP_REG_DRW,
- DPAP_READ, 0, buffer + 4 * readcount,
- &swjdp->ack);
- }
+ int retval = dap_queue_ap_read(dap, AP_REG_IDR, &id_val);
+ 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".
- */
- adi_jtag_dp_scan(swjdp, JTAG_DP_DPACC, DP_RDBUFF,
- DPAP_READ, 0, buffer + 4 * readcount,
- &swjdp->ack);
- if (jtagdp_transaction_endcheck(swjdp) == ERROR_OK)
- {
- wcount = wcount - blocksize;
- address += 4 * blocksize;
- buffer += 4 * blocksize;
- }
- else
- {
- errorcount++;
- }
+ retval = dap_run(dap);
- if (errorcount > 1)
- {
- LOG_WARNING("Block read error address 0x%" PRIx32 ", count 0x%x", address, count);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
+ /* 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)
+ */
- /* if we have an unaligned access - reorder data */
- if (adr & 0x3u)
- {
- for (readcount = 0; readcount < count; readcount++)
- {
- int i;
- uint32_t data;
- memcpy(&data, pBuffer, sizeof(uint32_t));
-
- for (i = 0; i < 4; i++)
- {
- *((uint8_t*)pBuffer) = (data >> 8 * (adr & 0x3));
- pBuffer++;
- adr++;
- }
+ /* 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%08" PRIX32 ")",
+ (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;
}
}
- return retval;
+ 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;
}
-static int mem_ap_read_buf_packed_u16(struct swjdp_common *swjdp,
- uint8_t *buffer, int count, uint32_t address)
+int dap_get_debugbase(struct adiv5_dap *dap, int ap,
+ uint32_t *dbgbase, uint32_t *apid)
{
- uint32_t invalue;
- int retval = ERROR_OK;
- int wcount, blocksize, readcount, i;
-
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
-
- wcount = count >> 1;
-
- while (wcount > 0)
- {
- int nbytes;
-
- /* Adjust to read blocks within boundaries aligned to the TAR autoincremnent size*/
- blocksize = max_tar_block_size(swjdp->tar_autoincr_block, address);
- if (wcount < blocksize)
- blocksize = wcount;
-
- dap_setup_accessport(swjdp, CSW_16BIT | CSW_ADDRINC_PACKED, address);
-
- /* handle unaligned data at 4k boundary */
- if (blocksize == 0)
- blocksize = 1;
- readcount = blocksize;
-
- do
- {
- dap_ap_read_reg_u32(swjdp, AP_REG_DRW, &invalue);
- if (jtagdp_transaction_endcheck(swjdp) != ERROR_OK)
- {
- LOG_WARNING("Block read error address 0x%" PRIx32 ", count 0x%x", address, count);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- nbytes = MIN((readcount << 1), 4);
-
- for (i = 0; i < nbytes; i++)
- {
- *((uint8_t*)buffer) = (invalue >> 8 * (address & 0x3));
- buffer++;
- address++;
- }
-
- readcount -= (nbytes >> 1);
- } while (readcount);
- wcount -= blocksize;
- }
-
- return retval;
-}
+ uint32_t ap_old;
+ int retval;
-int mem_ap_read_buf_u16(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address)
-{
- uint32_t invalue, i;
- int retval = ERROR_OK;
+ /* AP address is in bits 31:24 of DP_SELECT */
+ if (ap >= 256)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- if (count >= 4)
- return mem_ap_read_buf_packed_u16(swjdp, buffer, count, address);
+ ap_old = dap->ap_current;
+ dap_ap_select(dap, ap);
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+ retval = dap_queue_ap_read(dap, AP_REG_BASE, dbgbase);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_queue_ap_read(dap, AP_REG_IDR, apid);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_run(dap);
+ if (retval != ERROR_OK)
+ return retval;
- while (count > 0)
- {
- dap_setup_accessport(swjdp, CSW_16BIT | CSW_ADDRINC_SINGLE, address);
- dap_ap_read_reg_u32(swjdp, AP_REG_DRW, &invalue);
- retval = jtagdp_transaction_endcheck(swjdp);
- if (address & 0x1)
- {
- for (i = 0; i < 2; i++)
- {
- *((uint8_t*)buffer) = (invalue >> 8 * (address & 0x3));
- buffer++;
- address++;
- }
- }
- else
- {
- uint16_t svalue = (invalue >> 8 * (address & 0x3));
- memcpy(buffer, &svalue, sizeof(uint16_t));
- address += 2;
- buffer += 2;
- }
- count -= 2;
- }
+ dap_ap_select(dap, ap_old);
- return retval;
+ return ERROR_OK;
}
-/* FIX!!! is this a potential performance bottleneck w.r.t. requiring too many
- * roundtrips when jtag_execute_queue() has a large overhead(e.g. for USB)s?
- *
- * The solution is to arrange for a large out/in scan in this loop and
- * and convert data afterwards.
- */
-static int mem_ap_read_buf_packed_u8(struct swjdp_common *swjdp,
- uint8_t *buffer, int count, uint32_t address)
+int dap_lookup_cs_component(struct adiv5_dap *dap, int ap,
+ uint32_t dbgbase, uint8_t type, uint32_t *addr, int32_t *idx)
{
- uint32_t invalue;
- int retval = ERROR_OK;
- int wcount, blocksize, readcount, i;
-
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
-
- wcount = count;
+ uint32_t ap_old;
+ uint32_t romentry, entry_offset = 0, component_base, devtype;
+ int retval;
- while (wcount > 0)
- {
- int nbytes;
+ if (ap >= 256)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- /* Adjust to read blocks within boundaries aligned to the TAR autoincremnent size*/
- blocksize = max_tar_block_size(swjdp->tar_autoincr_block, address);
+ *addr = 0;
+ ap_old = dap->ap_current;
+ dap_ap_select(dap, ap);
- if (wcount < blocksize)
- blocksize = wcount;
+ do {
+ retval = mem_ap_read_atomic_u32(dap, (dbgbase&0xFFFFF000) |
+ entry_offset, &romentry);
+ if (retval != ERROR_OK)
+ return retval;
- dap_setup_accessport(swjdp, CSW_8BIT | CSW_ADDRINC_PACKED, address);
- readcount = blocksize;
+ component_base = (dbgbase & 0xFFFFF000)
+ + (romentry & 0xFFFFF000);
- do
- {
- dap_ap_read_reg_u32(swjdp, AP_REG_DRW, &invalue);
- if (jtagdp_transaction_endcheck(swjdp) != ERROR_OK)
- {
- LOG_WARNING("Block read error address 0x%" PRIx32 ", count 0x%x", address, count);
- return ERROR_JTAG_DEVICE_ERROR;
+ if (romentry & 0x1) {
+ uint32_t c_cid1;
+ retval = mem_ap_read_atomic_u32(dap, component_base | 0xff4, &c_cid1);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Can't read component with base address 0x%" PRIx32
+ ", the corresponding core might be turned off", component_base);
+ return retval;
}
-
- nbytes = MIN(readcount, 4);
-
- for (i = 0; i < nbytes; i++)
- {
- *((uint8_t*)buffer) = (invalue >> 8 * (address & 0x3));
- buffer++;
- address++;
+ if (((c_cid1 >> 4) & 0x0f) == 1) {
+ retval = dap_lookup_cs_component(dap, ap, component_base,
+ type, addr, idx);
+ if (retval == ERROR_OK)
+ break;
+ if (retval != ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
+ return retval;
}
- readcount -= nbytes;
- } while (readcount);
- wcount -= blocksize;
- }
-
- return retval;
-}
-
-int mem_ap_read_buf_u8(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address)
-{
- uint32_t invalue;
- int retval = ERROR_OK;
-
- if (count >= 4)
- return mem_ap_read_buf_packed_u8(swjdp, buffer, count, address);
+ retval = mem_ap_read_atomic_u32(dap,
+ (component_base & 0xfffff000) | 0xfcc,
+ &devtype);
+ if (retval != ERROR_OK)
+ return retval;
+ if ((devtype & 0xff) == type) {
+ if (!*idx) {
+ *addr = component_base;
+ break;
+ } else
+ (*idx)--;
+ }
+ }
+ entry_offset += 4;
+ } while (romentry > 0);
- swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+ dap_ap_select(dap, ap_old);
- while (count > 0)
- {
- dap_setup_accessport(swjdp, CSW_8BIT | CSW_ADDRINC_SINGLE, address);
- dap_ap_read_reg_u32(swjdp, AP_REG_DRW, &invalue);
- retval = jtagdp_transaction_endcheck(swjdp);
- *((uint8_t*)buffer) = (invalue >> 8 * (address & 0x3));
- count--;
- address++;
- buffer++;
- }
+ if (!*addr)
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- return retval;
+ return ERROR_OK;
}
-/**
- * Initialize a DAP.
- *
- * @todo Rename this. We also need an initialization scheme which account
- * for SWD transports not just JTAG; that will need to address differences
- * in layering. (JTAG is useful without any debug target; but not SWD.)
- * And this may not even use an AHB-AP ... e.g. DAP-Lite uses an APB-AP.
- */
-int ahbap_debugport_init(struct swjdp_common *swjdp)
+static int dap_rom_display(struct command_context *cmd_ctx,
+ struct adiv5_dap *dap, int ap, uint32_t dbgbase, int depth)
{
- uint32_t idreg, romaddr, dummy;
- uint32_t ctrlstat;
- int cnt = 0;
int retval;
+ uint32_t cid0, cid1, cid2, cid3, memtype, romentry;
+ uint16_t entry_offset;
+ char tabs[7] = "";
- LOG_DEBUG(" ");
-
- /* Default MEM-AP setup.
- *
- * REVISIT AP #0 may be an inappropriate default for this.
- * Should we probe, or receve a hint from the caller?
- * Presumably we can ignore the possibility of multiple APs.
- */
- swjdp->apsel = 0;
- swjdp->ap_csw_value = -1;
- swjdp->ap_tar_value = -1;
+ if (depth > 16) {
+ command_print(cmd_ctx, "\tTables too deep");
+ return ERROR_FAIL;
+ }
- /* DP initialization */
- swjdp->trans_mode = TRANS_MODE_ATOMIC;
- dap_dp_read_reg(swjdp, &dummy, DP_CTRL_STAT);
- dap_dp_write_reg(swjdp, SSTICKYERR, DP_CTRL_STAT);
- dap_dp_read_reg(swjdp, &dummy, DP_CTRL_STAT);
+ if (depth)
+ snprintf(tabs, sizeof(tabs), "[L%02d] ", depth);
- swjdp->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ;
+ /* bit 16 of apid indicates a memory access port */
+ if (dbgbase & 0x02)
+ command_print(cmd_ctx, "\t%sValid ROM table present", tabs);
+ else
+ command_print(cmd_ctx, "\t%sROM table in legacy format", tabs);
- dap_dp_write_reg(swjdp, swjdp->dp_ctrl_stat, DP_CTRL_STAT);
- dap_dp_read_reg(swjdp, &ctrlstat, DP_CTRL_STAT);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
+ /* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */
+ retval = mem_ap_read_u32(dap, (dbgbase&0xFFFFF000) | 0xFF0, &cid0);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = mem_ap_read_u32(dap, (dbgbase&0xFFFFF000) | 0xFF4, &cid1);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = mem_ap_read_u32(dap, (dbgbase&0xFFFFF000) | 0xFF8, &cid2);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = mem_ap_read_u32(dap, (dbgbase&0xFFFFF000) | 0xFFC, &cid3);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = mem_ap_read_u32(dap, (dbgbase&0xFFFFF000) | 0xFCC, &memtype);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_run(dap);
+ if (retval != ERROR_OK)
return retval;
- /* Check that we have debug power domains activated */
- while (!(ctrlstat & CDBGPWRUPACK) && (cnt++ < 10))
- {
- LOG_DEBUG("DAP: wait CDBGPWRUPACK");
- dap_dp_read_reg(swjdp, &ctrlstat, DP_CTRL_STAT);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- alive_sleep(10);
- }
+ if (!is_dap_cid_ok(cid3, cid2, cid1, cid0))
+ command_print(cmd_ctx, "\t%sCID3 0x%02x"
+ ", CID2 0x%02x"
+ ", CID1 0x%02x"
+ ", CID0 0x%02x",
+ tabs,
+ (unsigned)cid3, (unsigned)cid2,
+ (unsigned)cid1, (unsigned)cid0);
+ if (memtype & 0x01)
+ command_print(cmd_ctx, "\t%sMEMTYPE system memory present on bus", tabs);
+ else
+ command_print(cmd_ctx, "\t%sMEMTYPE system memory not present: dedicated debug bus", tabs);
- while (!(ctrlstat & CSYSPWRUPACK) && (cnt++ < 10))
- {
- LOG_DEBUG("DAP: wait CSYSPWRUPACK");
- dap_dp_read_reg(swjdp, &ctrlstat, DP_CTRL_STAT);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
+ /* Now we read ROM table entries from dbgbase&0xFFFFF000) | 0x000 until we get 0x00000000 */
+ for (entry_offset = 0; ; entry_offset += 4) {
+ retval = mem_ap_read_atomic_u32(dap, (dbgbase&0xFFFFF000) | entry_offset, &romentry);
+ if (retval != ERROR_OK)
return retval;
- alive_sleep(10);
- }
-
- dap_dp_read_reg(swjdp, &dummy, DP_CTRL_STAT);
- /* With debug power on we can activate OVERRUN checking */
- swjdp->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ | CORUNDETECT;
- dap_dp_write_reg(swjdp, swjdp->dp_ctrl_stat, DP_CTRL_STAT);
- dap_dp_read_reg(swjdp, &dummy, DP_CTRL_STAT);
-
- /*
- * REVISIT this isn't actually *initializing* anything in an AP,
- * and doesn't care if it's a MEM-AP at all (much less AHB-AP).
- * Should it? If the ROM address is valid, is this the right
- * place to scan the table and do any topology detection?
- */
- dap_ap_read_reg_u32(swjdp, AP_REG_IDR, &idreg);
- dap_ap_read_reg_u32(swjdp, AP_REG_BASE, &romaddr);
+ command_print(cmd_ctx, "\t%sROMTABLE[0x%x] = 0x%" PRIx32 "",
+ tabs, entry_offset, romentry);
+ if (romentry & 0x01) {
+ uint32_t c_cid0, c_cid1, c_cid2, c_cid3;
+ uint32_t c_pid0, c_pid1, c_pid2, c_pid3, c_pid4;
+ uint32_t component_base;
+ unsigned part_num;
+ const char *type, *full;
+
+ component_base = (dbgbase & 0xFFFFF000) + (romentry & 0xFFFFF000);
+
+ /* IDs are in last 4K section */
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFE0, &c_pid0);
+ if (retval != ERROR_OK) {
+ command_print(cmd_ctx, "\t%s\tCan't read component with base address 0x%" PRIx32
+ ", the corresponding core might be turned off", tabs, component_base);
+ continue;
+ }
+ c_pid0 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFE4, &c_pid1);
+ if (retval != ERROR_OK)
+ return retval;
+ c_pid1 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFE8, &c_pid2);
+ if (retval != ERROR_OK)
+ return retval;
+ c_pid2 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFEC, &c_pid3);
+ if (retval != ERROR_OK)
+ return retval;
+ c_pid3 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFD0, &c_pid4);
+ if (retval != ERROR_OK)
+ return retval;
+ c_pid4 &= 0xff;
- LOG_DEBUG("MEM-AP #%d ID Register 0x%" PRIx32
- ", Debug ROM Address 0x%" PRIx32,
- swjdp->apsel, idreg, romaddr);
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFF0, &c_cid0);
+ if (retval != ERROR_OK)
+ return retval;
+ c_cid0 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFF4, &c_cid1);
+ if (retval != ERROR_OK)
+ return retval;
+ c_cid1 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFF8, &c_cid2);
+ if (retval != ERROR_OK)
+ return retval;
+ c_cid2 &= 0xff;
+ retval = mem_ap_read_atomic_u32(dap, component_base + 0xFFC, &c_cid3);
+ if (retval != ERROR_OK)
+ return retval;
+ c_cid3 &= 0xff;
+
+ command_print(cmd_ctx, "\t\tComponent base address 0x%" PRIx32 ", "
+ "start address 0x%" PRIx32, component_base,
+ /* component may take multiple 4K pages */
+ (uint32_t)(component_base - 0x1000*(c_pid4 >> 4)));
+ command_print(cmd_ctx, "\t\tComponent class is 0x%" PRIx8 ", %s",
+ (uint8_t)((c_cid1 >> 4) & 0xf),
+ /* See ARM IHI 0029B Table 3-3 */
+ class_description[(c_cid1 >> 4) & 0xf]);
+
+ /* CoreSight component? */
+ if (((c_cid1 >> 4) & 0x0f) == 9) {
+ uint32_t devtype;
+ unsigned minor;
+ const char *major = "Reserved", *subtype = "Reserved";
+
+ retval = mem_ap_read_atomic_u32(dap,
+ (component_base & 0xfffff000) | 0xfcc,
+ &devtype);
+ if (retval != ERROR_OK)
+ return retval;
+ minor = (devtype >> 4) & 0x0f;
+ switch (devtype & 0x0f) {
+ case 0:
+ major = "Miscellaneous";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 4:
+ subtype = "Validation component";
+ break;
+ }
+ break;
+ case 1:
+ major = "Trace Sink";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Port";
+ break;
+ case 2:
+ subtype = "Buffer";
+ break;
+ case 3:
+ subtype = "Router";
+ break;
+ }
+ break;
+ case 2:
+ major = "Trace Link";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Funnel, router";
+ break;
+ case 2:
+ subtype = "Filter";
+ break;
+ case 3:
+ subtype = "FIFO, buffer";
+ break;
+ }
+ break;
+ case 3:
+ major = "Trace Source";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Processor";
+ break;
+ case 2:
+ subtype = "DSP";
+ break;
+ case 3:
+ subtype = "Engine/Coprocessor";
+ break;
+ case 4:
+ subtype = "Bus";
+ break;
+ case 6:
+ subtype = "Software";
+ break;
+ }
+ break;
+ case 4:
+ major = "Debug Control";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Trigger Matrix";
+ break;
+ case 2:
+ subtype = "Debug Auth";
+ break;
+ case 3:
+ subtype = "Power Requestor";
+ break;
+ }
+ break;
+ case 5:
+ major = "Debug Logic";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Processor";
+ break;
+ case 2:
+ subtype = "DSP";
+ break;
+ case 3:
+ subtype = "Engine/Coprocessor";
+ break;
+ case 4:
+ subtype = "Bus";
+ break;
+ case 5:
+ subtype = "Memory";
+ break;
+ }
+ break;
+ case 6:
+ major = "Perfomance Monitor";
+ switch (minor) {
+ case 0:
+ subtype = "other";
+ break;
+ case 1:
+ subtype = "Processor";
+ break;
+ case 2:
+ subtype = "DSP";
+ break;
+ case 3:
+ subtype = "Engine/Coprocessor";
+ break;
+ case 4:
+ subtype = "Bus";
+ break;
+ case 5:
+ subtype = "Memory";
+ break;
+ }
+ break;
+ }
+ command_print(cmd_ctx, "\t\tType is 0x%02" PRIx8 ", %s, %s",
+ (uint8_t)(devtype & 0xff),
+ major, subtype);
+ /* REVISIT also show 0xfc8 DevId */
+ }
+ if (!is_dap_cid_ok(cid3, cid2, cid1, cid0))
+ command_print(cmd_ctx,
+ "\t\tCID3 0%02x"
+ ", CID2 0%02x"
+ ", CID1 0%02x"
+ ", CID0 0%02x",
+ (int)c_cid3,
+ (int)c_cid2,
+ (int)c_cid1,
+ (int)c_cid0);
+ command_print(cmd_ctx,
+ "\t\tPeripheral ID[4..0] = hex "
+ "%02x %02x %02x %02x %02x",
+ (int)c_pid4, (int)c_pid3, (int)c_pid2,
+ (int)c_pid1, (int)c_pid0);
+
+ /* Part number interpretations are from Cortex
+ * core specs, the CoreSight components TRM
+ * (ARM DDI 0314H), CoreSight System Design
+ * Guide (ARM DGI 0012D) and ETM specs; also
+ * from chip observation (e.g. TI SDTI).
+ */
+ part_num = (c_pid0 & 0xff);
+ part_num |= (c_pid1 & 0x0f) << 8;
+ switch (part_num) {
+ case 0x000:
+ type = "Cortex-M3 NVIC";
+ full = "(Interrupt Controller)";
+ break;
+ case 0x001:
+ type = "Cortex-M3 ITM";
+ full = "(Instrumentation Trace Module)";
+ break;
+ case 0x002:
+ type = "Cortex-M3 DWT";
+ full = "(Data Watchpoint and Trace)";
+ break;
+ case 0x003:
+ type = "Cortex-M3 FBP";
+ full = "(Flash Patch and Breakpoint)";
+ break;
+ case 0x008:
+ type = "Cortex-M0 SCS";
+ full = "(System Control Space)";
+ break;
+ case 0x00a:
+ type = "Cortex-M0 DWT";
+ full = "(Data Watchpoint and Trace)";
+ break;
+ case 0x00b:
+ type = "Cortex-M0 BPU";
+ full = "(Breakpoint Unit)";
+ break;
+ case 0x00c:
+ type = "Cortex-M4 SCS";
+ full = "(System Control Space)";
+ break;
+ case 0x00d:
+ type = "CoreSight ETM11";
+ full = "(Embedded Trace)";
+ break;
+ /* case 0x113: what? */
+ case 0x120: /* from OMAP3 memmap */
+ type = "TI SDTI";
+ full = "(System Debug Trace Interface)";
+ break;
+ case 0x343: /* from OMAP3 memmap */
+ type = "TI DAPCTL";
+ full = "";
+ break;
+ case 0x906:
+ type = "Coresight CTI";
+ full = "(Cross Trigger)";
+ break;
+ case 0x907:
+ type = "Coresight ETB";
+ full = "(Trace Buffer)";
+ break;
+ case 0x908:
+ type = "Coresight CSTF";
+ full = "(Trace Funnel)";
+ break;
+ case 0x910:
+ type = "CoreSight ETM9";
+ full = "(Embedded Trace)";
+ break;
+ case 0x912:
+ type = "Coresight TPIU";
+ full = "(Trace Port Interface Unit)";
+ break;
+ case 0x913:
+ type = "Coresight ITM";
+ full = "(Instrumentation Trace Macrocell)";
+ break;
+ case 0x914:
+ type = "Coresight SWO";
+ full = "(Single Wire Output)";
+ break;
+ case 0x917:
+ type = "Coresight HTM";
+ full = "(AHB Trace Macrocell)";
+ break;
+ case 0x920:
+ type = "CoreSight ETM11";
+ full = "(Embedded Trace)";
+ break;
+ case 0x921:
+ type = "Cortex-A8 ETM";
+ full = "(Embedded Trace)";
+ break;
+ case 0x922:
+ type = "Cortex-A8 CTI";
+ full = "(Cross Trigger)";
+ break;
+ case 0x923:
+ type = "Cortex-M3 TPIU";
+ full = "(Trace Port Interface Unit)";
+ break;
+ case 0x924:
+ 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 0x950:
+ type = "CoreSight Component";
+ full = "(unidentified Cortex-A9 component)";
+ break;
+ case 0x961:
+ type = "CoreSight TMC";
+ full = "(Trace Memory Controller)";
+ break;
+ case 0x962:
+ type = "CoreSight STM";
+ full = "(System Trace Macrocell)";
+ break;
+ case 0x9a0:
+ type = "CoreSight PMU";
+ full = "(Performance Monitoring Unit)";
+ break;
+ case 0x9a1:
+ type = "Cortex-M4 TPUI";
+ full = "(Trace Port Interface Unit)";
+ break;
+ case 0x9a5:
+ type = "Cortex-A5 ETM";
+ full = "(Embedded Trace)";
+ break;
+ case 0xc05:
+ type = "Cortex-A5 Debug";
+ full = "(Debug Unit)";
+ break;
+ case 0xc08:
+ type = "Cortex-A8 Debug";
+ full = "(Debug Unit)";
+ break;
+ case 0xc09:
+ type = "Cortex-A9 Debug";
+ full = "(Debug Unit)";
+ break;
+ case 0x4af:
+ type = "Cortex-A15 Debug";
+ full = "(Debug Unit)";
+ break;
+ default:
+ LOG_DEBUG("Unrecognized Part number 0x%" PRIx32, part_num);
+ type = "-*- unrecognized -*-";
+ full = "";
+ break;
+ }
+ command_print(cmd_ctx, "\t\tPart is %s %s",
+ type, full);
+
+ /* ROM Table? */
+ if (((c_cid1 >> 4) & 0x0f) == 1) {
+ retval = dap_rom_display(cmd_ctx, dap, ap, component_base, depth + 1);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+ } else {
+ if (romentry)
+ command_print(cmd_ctx, "\t\tComponent not present");
+ else
+ break;
+ }
+ }
+ command_print(cmd_ctx, "\t%s\tEnd of ROM table", tabs);
return ERROR_OK;
}
-/* CID interpretation -- see ARM IHI 0029B section 3
- * and ARM IHI 0031A table 13-3.
- */
-static const char *class_description[16] ={
- "Reserved", "ROM table", "Reserved", "Reserved",
- "Reserved", "Reserved", "Reserved", "Reserved",
- "Reserved", "CoreSight component", "Reserved", "Peripheral Test Block",
- "Reserved", "OptimoDE DESS",
- "Generic IP component", "PrimeCell or System component"
-};
-
-static bool
-is_dap_cid_ok(uint32_t cid3, uint32_t cid2, uint32_t cid1, uint32_t cid0)
-{
- return cid3 == 0xb1 && cid2 == 0x05
- && ((cid1 & 0x0f) == 0) && cid0 == 0x0d;
-}
-
-int dap_info_command(struct command_context *cmd_ctx,
- struct swjdp_common *swjdp, int apsel)
+static int dap_info_command(struct command_context *cmd_ctx,
+ struct adiv5_dap *dap, int ap)
{
-
+ int retval;
uint32_t dbgbase, apid;
int romtable_present = 0;
uint8_t mem_ap;
- uint32_t apselold;
+ uint32_t ap_old;
+
+ retval = dap_get_debugbase(dap, ap, &dbgbase, &apid);
+ if (retval != ERROR_OK)
+ return retval;
+
+ ap_old = dap->ap_current;
+ dap_ap_select(dap, ap);
- /* AP address is in bits 31:24 of DP_SELECT */
- if (apsel >= 256)
- return ERROR_INVALID_ARGUMENTS;
-
- apselold = swjdp->apsel;
- dap_ap_select(swjdp, apsel);
- dap_ap_read_reg_u32(swjdp, AP_REG_BASE, &dbgbase);
- dap_ap_read_reg_u32(swjdp, AP_REG_IDR, &apid);
- jtagdp_transaction_endcheck(swjdp);
/* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */
mem_ap = ((apid&0x10000) && ((apid&0x0F) != 0));
command_print(cmd_ctx, "AP ID register 0x%8.8" PRIx32, apid);
- if (apid)
- {
- switch (apid&0x0F)
- {
+ if (apid) {
+ switch (apid&0x0F) {
case 0:
command_print(cmd_ctx, "\tType is JTAG-AP");
break;
* not a ROM table ... or have no such components at all.
*/
if (mem_ap)
- command_print(cmd_ctx, "AP BASE 0x%8.8" PRIx32,
- dbgbase);
- }
- else
- {
- command_print(cmd_ctx, "No AP found at this apsel 0x%x", apsel);
- }
+ command_print(cmd_ctx, "AP BASE 0x%8.8" PRIx32, dbgbase);
+ } else
+ command_print(cmd_ctx, "No AP found at this ap 0x%x", ap);
romtable_present = ((mem_ap) && (dbgbase != 0xFFFFFFFF));
if (romtable_present)
- {
- uint32_t cid0,cid1,cid2,cid3,memtype,romentry;
- uint16_t entry_offset;
-
- /* bit 16 of apid indicates a memory access port */
- if (dbgbase & 0x02)
- command_print(cmd_ctx, "\tValid ROM table present");
- else
- command_print(cmd_ctx, "\tROM table in legacy format");
-
- /* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */
- mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFF0, &cid0);
- mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFF4, &cid1);
- mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFF8, &cid2);
- mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFFC, &cid3);
- mem_ap_read_u32(swjdp, (dbgbase&0xFFFFF000) | 0xFCC, &memtype);
- jtagdp_transaction_endcheck(swjdp);
- if (!is_dap_cid_ok(cid3, cid2, cid1, cid0))
- command_print(cmd_ctx, "\tCID3 0x%2.2" PRIx32
- ", CID2 0x%2.2" PRIx32
- ", CID1 0x%2.2" PRIx32
- ", CID0 0x%2.2" PRIx32,
- cid3, cid2, cid1, cid0);
- if (memtype & 0x01)
- command_print(cmd_ctx, "\tMEMTYPE system memory present on bus");
- else
- command_print(cmd_ctx, "\tMEMTYPE System memory not present. "
- "Dedicated debug bus.");
-
- /* Now we read ROM table entries from dbgbase&0xFFFFF000) | 0x000 until we get 0x00000000 */
- entry_offset = 0;
- do
- {
- mem_ap_read_atomic_u32(swjdp, (dbgbase&0xFFFFF000) | entry_offset, &romentry);
- command_print(cmd_ctx, "\tROMTABLE[0x%x] = 0x%" PRIx32 "",entry_offset,romentry);
- if (romentry&0x01)
- {
- uint32_t c_cid0, c_cid1, c_cid2, c_cid3;
- uint32_t c_pid0, c_pid1, c_pid2, c_pid3, c_pid4;
- uint32_t component_start, component_base;
- unsigned part_num;
- char *type, *full;
-
- component_base = (uint32_t)((dbgbase & 0xFFFFF000)
- + (int)(romentry & 0xFFFFF000));
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFE0, &c_pid0);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFE4, &c_pid1);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFE8, &c_pid2);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFEC, &c_pid3);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFD0, &c_pid4);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFF0, &c_cid0);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFF4, &c_cid1);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFF8, &c_cid2);
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xFFFFF000) | 0xFFC, &c_cid3);
- component_start = component_base - 0x1000*(c_pid4 >> 4);
-
- command_print(cmd_ctx, "\t\tComponent base address 0x%" PRIx32
- ", start address 0x%" PRIx32,
- component_base, component_start);
- command_print(cmd_ctx, "\t\tComponent class is 0x%x, %s",
- (int) (c_cid1 >> 4) & 0xf,
- /* See ARM IHI 0029B Table 3-3 */
- class_description[(c_cid1 >> 4) & 0xf]);
-
- /* CoreSight component? */
- if (((c_cid1 >> 4) & 0x0f) == 9) {
- uint32_t devtype;
- unsigned minor;
- char *major = "Reserved", *subtype = "Reserved";
-
- mem_ap_read_atomic_u32(swjdp,
- (component_base & 0xfffff000) | 0xfcc,
- &devtype);
- minor = (devtype >> 4) & 0x0f;
- switch (devtype & 0x0f) {
- case 0:
- major = "Miscellaneous";
- switch (minor) {
- case 0:
- subtype = "other";
- break;
- case 4:
- subtype = "Validation component";
- break;
- }
- break;
- case 1:
- major = "Trace Sink";
- switch (minor) {
- case 0:
- subtype = "other";
- break;
- case 1:
- subtype = "Port";
- break;
- case 2:
- subtype = "Buffer";
- break;
- }
- break;
- case 2:
- major = "Trace Link";
- switch (minor) {
- case 0:
- subtype = "other";
- break;
- case 1:
- subtype = "Funnel, router";
- break;
- case 2:
- subtype = "Filter";
- break;
- case 3:
- subtype = "FIFO, buffer";
- break;
- }
- break;
- case 3:
- major = "Trace Source";
- switch (minor) {
- case 0:
- subtype = "other";
- break;
- case 1:
- subtype = "Processor";
- break;
- case 2:
- subtype = "DSP";
- break;
- case 3:
- subtype = "Engine/Coprocessor";
- break;
- case 4:
- subtype = "Bus";
- break;
- }
- break;
- case 4:
- major = "Debug Control";
- switch (minor) {
- case 0:
- subtype = "other";
- break;
- case 1:
- subtype = "Trigger Matrix";
- break;
- case 2:
- subtype = "Debug Auth";
- break;
- }
- break;
- case 5:
- major = "Debug Logic";
- switch (minor) {
- case 0:
- subtype = "other";
- break;
- case 1:
- subtype = "Processor";
- break;
- case 2:
- subtype = "DSP";
- break;
- case 3:
- subtype = "Engine/Coprocessor";
- break;
- }
- break;
- }
- command_print(cmd_ctx, "\t\tType is 0x%2.2x, %s, %s",
- (unsigned) (devtype & 0xff),
- major, subtype);
- /* REVISIT also show 0xfc8 DevId */
- }
-
- if (!is_dap_cid_ok(cid3, cid2, cid1, cid0))
- command_print(cmd_ctx, "\t\tCID3 0x%2.2" PRIx32
- ", CID2 0x%2.2" PRIx32
- ", CID1 0x%2.2" PRIx32
- ", CID0 0x%2.2" PRIx32,
- c_cid3, c_cid2, c_cid1, c_cid0);
- command_print(cmd_ctx, "\t\tPeripheral ID[4..0] = hex "
- "%2.2x %2.2x %2.2x %2.2x %2.2x",
- (int) c_pid4,
- (int) c_pid3, (int) c_pid2,
- (int) c_pid1, (int) c_pid0);
-
- /* Part number interpretations are from Cortex
- * core specs, the CoreSight components TRM
- * (ARM DDI 0314H), and ETM specs; also from
- * chip observation (e.g. TI SDTI).
- */
- part_num = c_pid0 & 0xff;
- part_num |= (c_pid1 & 0x0f) << 8;
- switch (part_num) {
- case 0x000:
- type = "Cortex-M3 NVIC";
- full = "(Interrupt Controller)";
- break;
- case 0x001:
- type = "Cortex-M3 ITM";
- full = "(Instrumentation Trace Module)";
- break;
- case 0x002:
- type = "Cortex-M3 DWT";
- full = "(Data Watchpoint and Trace)";
- break;
- case 0x003:
- type = "Cortex-M3 FBP";
- full = "(Flash Patch and Breakpoint)";
- break;
- case 0x00d:
- type = "CoreSight ETM11";
- full = "(Embedded Trace)";
- break;
- // case 0x113: what?
- case 0x120: /* from OMAP3 memmap */
- type = "TI SDTI";
- full = "(System Debug Trace Interface)";
- break;
- case 0x343: /* from OMAP3 memmap */
- type = "TI DAPCTL";
- full = "";
- break;
- case 0x4e0:
- type = "Cortex-M3 ETM";
- full = "(Embedded Trace)";
- break;
- case 0x906:
- type = "Coresight CTI";
- full = "(Cross Trigger)";
- break;
- case 0x907:
- type = "Coresight ETB";
- full = "(Trace Buffer)";
- break;
- case 0x908:
- type = "Coresight CSTF";
- full = "(Trace Funnel)";
- break;
- case 0x910:
- type = "CoreSight ETM9";
- full = "(Embedded Trace)";
- break;
- case 0x912:
- type = "Coresight TPIU";
- full = "(Trace Port Interface Unit)";
- break;
- case 0x921:
- type = "Cortex-A8 ETM";
- full = "(Embedded Trace)";
- break;
- case 0x922:
- type = "Cortex-A8 CTI";
- full = "(Cross Trigger)";
- break;
- case 0x923:
- type = "Cortex-M3 TPIU";
- full = "(Trace Port Interface Unit)";
- break;
- case 0xc08:
- type = "Cortex-A8 Debug";
- full = "(Debug Unit)";
- break;
- default:
- type = "-*- unrecognized -*-";
- full = "";
- break;
- }
- command_print(cmd_ctx, "\t\tPart is %s %s",
- type, full);
- }
- else
- {
- if (romentry)
- command_print(cmd_ctx, "\t\tComponent not present");
- else
- command_print(cmd_ctx, "\t\tEnd of ROM table");
- }
- entry_offset += 4;
- } while (romentry > 0);
- }
+ dap_rom_display(cmd_ctx, dap, ap, dbgbase, 0);
else
- {
command_print(cmd_ctx, "\tNo ROM table present");
- }
- dap_ap_select(swjdp, apselold);
+ dap_ap_select(dap, ap_old);
return ERROR_OK;
}
-DAP_COMMAND_HANDLER(dap_baseaddr_command)
+COMMAND_HANDLER(handle_dap_info_command)
{
- uint32_t apsel, apselsave, baseaddr;
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+ uint32_t apsel;
+
+ switch (CMD_ARGC) {
+ case 0:
+ apsel = dap->apsel;
+ break;
+ case 1:
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ return dap_info_command(CMD_CTX, dap, apsel);
+}
+
+COMMAND_HANDLER(dap_baseaddr_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+
+ uint32_t apsel, baseaddr;
int retval;
- apselsave = swjdp->apsel;
switch (CMD_ARGC) {
case 0:
- apsel = swjdp->apsel;
+ apsel = dap->apsel;
break;
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
if (apsel >= 256)
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
return ERROR_COMMAND_SYNTAX_ERROR;
}
- if (apselsave != apsel)
- dap_ap_select(swjdp, apsel);
+ dap_ap_select(dap, apsel);
/* NOTE: assumes we're talking to a MEM-AP, which
* has a base address. There are other kinds of AP,
* though they're not common for now. This should
* use the ID register to verify it's a MEM-AP.
*/
- dap_ap_read_reg_u32(swjdp, AP_REG_BASE, &baseaddr);
- retval = jtagdp_transaction_endcheck(swjdp);
- command_print(CMD_CTX, "0x%8.8" PRIx32, baseaddr);
+ retval = dap_queue_ap_read(dap, AP_REG_BASE, &baseaddr);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_run(dap);
+ if (retval != ERROR_OK)
+ return retval;
- if (apselsave != apsel)
- dap_ap_select(swjdp, apselsave);
+ command_print(CMD_CTX, "0x%8.8" PRIx32, baseaddr);
return retval;
}
-DAP_COMMAND_HANDLER(dap_memaccess_command)
+COMMAND_HANDLER(dap_memaccess_command)
{
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+
uint32_t memaccess_tck;
switch (CMD_ARGC) {
case 0:
- memaccess_tck = swjdp->memaccess_tck;
+ memaccess_tck = dap->memaccess_tck;
break;
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], memaccess_tck);
default:
return ERROR_COMMAND_SYNTAX_ERROR;
}
- swjdp->memaccess_tck = memaccess_tck;
+ dap->memaccess_tck = memaccess_tck;
command_print(CMD_CTX, "memory bus access delay set to %" PRIi32 " tck",
- swjdp->memaccess_tck);
+ dap->memaccess_tck);
return ERROR_OK;
}
-DAP_COMMAND_HANDLER(dap_apsel_command)
+COMMAND_HANDLER(dap_apsel_command)
{
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+
uint32_t apsel, apid;
int retval;
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
if (apsel >= 256)
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
return ERROR_COMMAND_SYNTAX_ERROR;
}
- dap_ap_select(swjdp, apsel);
- dap_ap_read_reg_u32(swjdp, AP_REG_IDR, &apid);
- retval = jtagdp_transaction_endcheck(swjdp);
+ dap->apsel = apsel;
+ dap_ap_select(dap, apsel);
+
+ retval = dap_queue_ap_read(dap, 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;
}
-DAP_COMMAND_HANDLER(dap_apid_command)
+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)
{
- uint32_t apsel, apselsave, apid;
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+
+ uint32_t apsel, apid;
int retval;
- apselsave = swjdp->apsel;
switch (CMD_ARGC) {
case 0:
- apsel = swjdp->apsel;
+ apsel = dap->apsel;
break;
case 1:
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
/* AP address is in bits 31:24 of DP_SELECT */
if (apsel >= 256)
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
break;
default:
return ERROR_COMMAND_SYNTAX_ERROR;
}
- if (apselsave != apsel)
- dap_ap_select(swjdp, apsel);
+ dap_ap_select(dap, apsel);
+
+ retval = dap_queue_ap_read(dap, AP_REG_IDR, &apid);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = dap_run(dap);
+ if (retval != ERROR_OK)
+ return retval;
- dap_ap_read_reg_u32(swjdp, AP_REG_IDR, &apid);
- retval = jtagdp_transaction_endcheck(swjdp);
command_print(CMD_CTX, "0x%8.8" PRIx32, apid);
- if (apselsave != apsel)
- dap_ap_select(swjdp, apselsave);
return retval;
}
+
+COMMAND_HANDLER(dap_ti_be_32_quirks_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target_to_arm(target);
+ struct adiv5_dap *dap = arm->dap;
+
+ uint32_t enable = dap->ti_be_32_quirks;
+
+ switch (CMD_ARGC) {
+ case 0:
+ break;
+ case 1:
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], enable);
+ if (enable > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ dap->ti_be_32_quirks = enable;
+ command_print(CMD_CTX, "TI BE-32 quirks mode %s",
+ enable ? "enabled" : "disabled");
+
+ return 0;
+}
+
+static const struct command_registration dap_commands[] = {
+ {
+ .name = "info",
+ .handler = handle_dap_info_command,
+ .mode = COMMAND_EXEC,
+ .help = "display ROM table for MEM-AP "
+ "(default currently selected AP)",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "apsel",
+ .handler = dap_apsel_command,
+ .mode = COMMAND_EXEC,
+ .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]",
+ },
+
+ {
+ .name = "apid",
+ .handler = dap_apid_command,
+ .mode = COMMAND_EXEC,
+ .help = "return ID register from AP "
+ "(default currently selected AP)",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "baseaddr",
+ .handler = dap_baseaddr_command,
+ .mode = COMMAND_EXEC,
+ .help = "return debug base address from MEM-AP "
+ "(default currently selected AP)",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "memaccess",
+ .handler = dap_memaccess_command,
+ .mode = COMMAND_EXEC,
+ .help = "set/get number of extra tck for MEM-AP memory "
+ "bus access [0-255]",
+ .usage = "[cycles]",
+ },
+ {
+ .name = "ti_be_32_quirks",
+ .handler = dap_ti_be_32_quirks_command,
+ .mode = COMMAND_CONFIG,
+ .help = "set/get quirks mode for TI TMS450/TMS570 processors",
+ .usage = "[enable]",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+const struct command_registration dap_command_handlers[] = {
+ {
+ .name = "dap",
+ .mode = COMMAND_EXEC,
+ .help = "DAP command group",
+ .usage = "",
+ .chain = dap_commands,
+ },
+ COMMAND_REGISTRATION_DONE
+};
Code Review / openocd.git / blobdiff