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| author | Tomek CEDRO <cederom@tlen.pl> | 2011-11-04 02:06:49 +0000 |
|---|---|---|
| committer | Tomek CEDRO <cederom@tlen.pl> | 2011-11-04 02:06:49 +0000 |
| commit | 08db63ec5d22fdc47577d01f15a129390079a2ae (patch) | |
| tree | 00e7f7b4cef712dd88a3e1a53d4b5fdb1fa27668 | |
| parent | 5a95ae191619f6b693bdd011ded3827d2c3d7978 (diff) | |
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target/arm_adi_v5: Added SW-DP style sticky error flag hanfling in ahbap_debugport_init().
| -rw-r--r-- | src/target/arm_adi_v5.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c index 413511c7..cacfac8f 100644 --- a/src/target/arm_adi_v5.c +++ b/src/target/arm_adi_v5.c @@ -1096,9 +1096,21 @@ int ahbap_debugport_init(struct adiv5_dap *dap) if (retval != ERROR_OK) return retval; - retval = dap_queue_dp_write(dap, DP_CTRL_STAT, SSTICKYERR); - if (retval != ERROR_OK) - return retval; + //Sticky Flags handling is different for JTAG and SWD. + //TODO: Create one function that will take care of error handling based on transport type. + if ((strncmp(jtag_interface->transport->name, "swd", 3)==0)) { + //Clear error flags on SW-DP + retval = dap_queue_dp_write(dap, DP_ABORT, \ + SWD_DP_ABORT_ORUNERRCLR|SWD_DP_ABORT_WDERRCLR \ + |SWD_DP_ABORT_STKERRCLR|SWD_DP_ABORT_STKCMPCLR); + if (retval != ERROR_OK) + return retval; + } else { + //Clear error flags on JTAG-DP + retval = dap_queue_dp_write(dap, DP_CTRL_STAT, SSTICKYERR); + if (retval != ERROR_OK) + return retval; + } retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL); if (retval != ERROR_OK) @@ -1138,6 +1150,10 @@ int ahbap_debugport_init(struct adiv5_dap *dap) alive_sleep(10); } + //TC: Here CDBGPWRUPACK|CSYSPWRUPACK still may not be set! + //TODO: Should we proceed anyway? + if (cnt>=10) LOG_ERROR("CDBGPWRUPACK|CSYSPWRUPACK FLAGS NOT SET IN RESPONSE!"); + retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL); if (retval != ERROR_OK) return retval; |