[ot] hw/opentitan: ot_flash: Add trace on reset

This helps debugging races involving flash resets, so it is quite useful
to have as a trace.

Signed-off-by: Alex Jones <[email protected]>

Author: AlexJones0

hw/opentitan/ot_flash.c

@@ -3175,6 +3175,8 @@ static void ot_flash_reset_enter(Object *obj, ResetType type)
     OtFlashClass *c = OT_FLASH_GET_CLASS(obj);
     OtFlashState *s = OT_FLASH(obj);
 
+    trace_ot_flash_reset(s->ot_id, "enter");
+
     if (c->parent_phases.enter) {
         c->parent_phases.enter(obj, type);
     }
@@ -3293,6 +3295,8 @@ static void ot_flash_reset_exit(Object *obj, ResetType type)
     OtFlashClass *c = OT_FLASH_GET_CLASS(obj);
     OtFlashState *s = OT_FLASH(obj);
 
+    trace_ot_flash_reset(s->ot_id, "exit");
+
     if (c->parent_phases.exit) {
         c->parent_phases.exit(obj, type);
     }

hw/opentitan/trace-events

@@ -215,6 +215,7 @@ ot_flash_op_prog(const char* id, unsigned op_addr, unsigned count, unsigned rema
 ot_flash_op_start(const char* id, const char *op, bool hw) "%s: %s (hw=%u)"
 ot_flash_prog_word(const char* id, bool info_part, unsigned word_addr, uint32_t word) "%s: info_part %u word_addr %u word %u"
 ot_flash_read_keymgr_seed(const char* id, unsigned page, bool success) "%s: %u: %u"
+ot_flash_reset(const char *id, const char *phase) "%s: %s"
 ot_flash_reset_fifo(const char* id, const char *name) "%s: %s"
 ot_flash_set_error(const char* id, const char *op, bool hw, uint32_t err_code, uint32_t err_addr) "%s: %s (hw=%u): err=0x%08x at addr=0x%06x"
 ot_flash_update_alert(const char* id, int prev, int next) "%s: %d -> %d"