diff options
Diffstat (limited to 'src/target/arm11_dbgtap.c')
| -rw-r--r-- | src/target/arm11_dbgtap.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/target/arm11_dbgtap.c b/src/target/arm11_dbgtap.c index 9cc8ad03..73607176 100644 --- a/src/target/arm11_dbgtap.c +++ b/src/target/arm11_dbgtap.c @@ -216,7 +216,7 @@ void arm11_add_debug_INST(arm11_common_t * arm11, u32 inst, u8 * flag, tap_state * * \remarks This is a stand-alone function that executes the JTAG command queue. */ -u32 arm11_read_DSCR(arm11_common_t * arm11) +int arm11_read_DSCR(arm11_common_t * arm11, u32 *value) { arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT); @@ -229,14 +229,20 @@ u32 arm11_read_DSCR(arm11_common_t * arm11) arm11_add_dr_scan_vc(1, &chain1_field, TAP_DRPAUSE); - jtag_execute_queue(); + int retval; + if ((retval=jtag_execute_queue())!=ERROR_OK) + { + return retval; + } if (arm11->last_dscr != dscr) JTAG_DEBUG("DSCR = %08x (OLD %08x)", dscr, arm11->last_dscr); arm11->last_dscr = dscr; - return dscr; + *value=dscr; + + return retval; } /** Write the Debug Status and Control Register (DSCR) |