adi_v5_jtag: make sure SSTICKYERR is cleared after a POR

[openocd.git] / src / target / adi_v5_jtag.c

diff --git a/src/target/adi_v5_jtag.c b/src/target/adi_v5_jtag.c
index 272d308fd2780f17615d0589d5e79c2a882a7da4..c7dc4f7c988c4059bf9c81845b1ac559f397c8df 100644 (file)
--- a/src/target/adi_v5_jtag.c
+++ b/src/target/adi_v5_jtag.c
@@ -357,7 +357,7 @@ static int jtagdp_overrun_check(struct adiv5_dap *dap)
        int retval;
        struct dap_cmd *el, *tmp, *prev = NULL;
        int found_wait = 0;
-       uint64_t time_now;
+       int64_t time_now;
        LIST_HEAD(replay_list);
 
        /* make sure all queued transactions are complete */
@@ -448,7 +448,12 @@ static int jtagdp_overrun_check(struct adiv5_dap *dap)
                                        /* timeout happened */
                                        if (tmp->ack != JTAG_ACK_OK_FAULT) {
                                                LOG_ERROR("Timeout during WAIT recovery");
+                                               dap->select = DP_SELECT_INVALID;
                                                jtag_ap_q_abort(dap, NULL);
+                                               /* clear the sticky overrun condition */
+                                               adi_jtag_scan_inout_check_u32(dap, JTAG_DP_DPACC,
+                                                       DP_CTRL_STAT, DPAP_WRITE,
+                                                       dap->dp_ctrl_stat | SSTICKYORUN, NULL, 0);
                                                retval = ERROR_JTAG_DEVICE_ERROR;
                                        }
                                }
@@ -525,8 +530,14 @@ static int jtagdp_overrun_check(struct adiv5_dap *dap)
                        if (retval == ERROR_OK) {
                                if (el->ack != JTAG_ACK_OK_FAULT) {
                                        LOG_ERROR("Timeout during WAIT recovery");
+                                       dap->select = DP_SELECT_INVALID;
                                        jtag_ap_q_abort(dap, NULL);
+                                       /* clear the sticky overrun condition */
+                                       adi_jtag_scan_inout_check_u32(dap, JTAG_DP_DPACC,
+                                               DP_CTRL_STAT, DPAP_WRITE,
+                                               dap->dp_ctrl_stat | SSTICKYORUN, NULL, 0);
                                        retval = ERROR_JTAG_DEVICE_ERROR;
+                                       break;
                                }
                        } else
                                break;
@@ -563,8 +574,6 @@ static int jtagdp_transaction_endcheck(struct adiv5_dap *dap)
                if ((ctrlstat & (CDBGPWRUPREQ | CDBGPWRUPACK | CSYSPWRUPREQ | CSYSPWRUPACK)) !=
                                                (CDBGPWRUPREQ | CDBGPWRUPACK | CSYSPWRUPREQ | CSYSPWRUPACK)) {
                        LOG_ERROR("Debug regions are unpowered, an unexpected reset might have happened");
-                       retval = ERROR_JTAG_DEVICE_ERROR;
-                       goto done;
                }
 
                if (ctrlstat & SSTICKYERR)
@@ -579,10 +588,7 @@ static int jtagdp_transaction_endcheck(struct adiv5_dap *dap)
                if (retval != ERROR_OK)
                        goto done;
 
-               if (ctrlstat & SSTICKYERR) {
-                       retval = ERROR_JTAG_DEVICE_ERROR;
-                       goto done;
-               }
+               retval = ERROR_JTAG_DEVICE_ERROR;
        }
 
  done: