target/cortex_a: emit a clear error message when dbgbase can't be detected

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

diff --git a/src/target/cortex_a.c b/src/target/cortex_a.c
index ab52dd75a5b294e4e6f3ab9cd47e9bd9fc327859..7ecf428dc594d056188011a0d312dff4b113c978 100644 (file)
--- a/src/target/cortex_a.c
+++ b/src/target/cortex_a.c
@@ -2871,8 +2871,11 @@ static int cortex_a_examine_first(struct target *target)
                /* Lookup 0x15 -- Processor DAP */
                retval = dap_lookup_cs_component(swjdp, 1, dbgbase, 0x15,
                                &armv7a->debug_base, &coreidx);
-               if (retval != ERROR_OK)
+               if (retval != ERROR_OK) {
+                       LOG_ERROR("Can't detect %s's dbgbase from the ROM table; you need to specify it explicitly.",
+                                 target->cmd_name);
                        return retval;
+               }
                LOG_DEBUG("Detected core %" PRId32 " dbgbase: %08" PRIx32,
                          coreidx, armv7a->debug_base);
        } else