-
- swjdp->ack = swjdp->ack & 0x7;
-
- if (swjdp->ack != 2)
- {
- long long then = timeval_ms();
- while (swjdp->ack != 2)
- {
- if (swjdp->ack == 1)
- {
- if ((timeval_ms()-then) > 1000)
- {
- LOG_WARNING("Timeout (1000ms) waiting for ACK = OK/FAULT in SWJDP transaction");
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
- else
- {
- LOG_WARNING("Invalid ACK in SWJDP transaction");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- swjdp->ack = swjdp->ack & 0x7;
- }
- } else
- {
- /* common code path avoids fn to timeval_ms() */
- }
-
- /* Check for STICKYERR and STICKYORUN */
- if (ctrlstat & (SSTICKYORUN | SSTICKYERR))
- {
- LOG_DEBUG("swjdp: CTRL/STAT error 0x%" PRIx32 "", ctrlstat);
- /* Check power to debug regions */
- if ((ctrlstat & 0xf0000000) != 0xf0000000)
- {
- ahbap_debugport_init(swjdp);
- }
- 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("SWJ-DP OVERRUN - check clock or reduce jtag speed");
-
- if (ctrlstat & SSTICKYERR)
- LOG_ERROR("SWJ-DP STICKY ERROR");
-
- /* Clear Sticky Error Bits */
- scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_WRITE, swjdp->dp_ctrl_stat | SSTICKYORUN | SSTICKYERR, NULL);
- scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
-
- LOG_DEBUG("swjdp: status 0x%" PRIx32 "", ctrlstat);
-
- 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("Read MEM_AP_CSW 0x%" PRIx32 ", MEM_AP_TAR 0x%" PRIx32 "", mem_ap_csw, mem_ap_tar);
-
- }
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-/***************************************************************************
- * *
- * DP and MEM-AP register access through APACC and DPACC *
- * *
-***************************************************************************/
-
-int dap_dp_write_reg(struct swjdp_common *swjdp, uint32_t value, uint8_t reg_addr)
-{
- return scan_inout_check_u32(swjdp, DAP_IR_DPACC, reg_addr, DPAP_WRITE, value, NULL);
-}
-
-int dap_dp_read_reg(struct swjdp_common *swjdp, uint32_t *value, uint8_t reg_addr)
-{
- return scan_inout_check_u32(swjdp, DAP_IR_DPACC, reg_addr, DPAP_READ, 0, value);
-}
-
-int dap_ap_select(struct swjdp_common *swjdp,uint8_t apsel)
-{
- uint32_t select;
- select = (apsel << 24) & 0xFF000000;
-
- 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;
- }
-