diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 70d5a10c1a9a..6e54a00d55b6 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -2894,7 +2894,7 @@ enum rtw89_flags {
 	RTW89_FLAG_LEISURE_PS,
 	RTW89_FLAG_LOW_POWER_MODE,
 	RTW89_FLAG_INACTIVE_PS,
-	RTW89_FLAG_RESTART_TRIGGER,
+	RTW89_FLAG_CRASH_SIMULATING,
 
 	NUM_OF_RTW89_FLAGS,
 };
diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c
index eed28c3b440f..730e83d54257 100644
--- a/drivers/net/wireless/realtek/rtw89/debug.c
+++ b/drivers/net/wireless/realtek/rtw89/debug.c
@@ -2190,6 +2190,37 @@ out:
 	return count;
 }
 
+static int rtw89_dbg_trigger_ctrl_error(struct rtw89_dev *rtwdev)
+{
+	struct rtw89_cpuio_ctrl ctrl_para = {0};
+	u16 pkt_id;
+
+	rtw89_leave_ps_mode(rtwdev);
+
+	pkt_id = rtw89_mac_dle_buf_req(rtwdev, 0x20, true);
+	switch (pkt_id) {
+	case 0xffff:
+		return -ETIMEDOUT;
+	case 0xfff:
+		return -ENOMEM;
+	default:
+		break;
+	}
+
+	/* intentionally, enqueue two pkt, but has only one pkt id */
+	ctrl_para.cmd_type = CPUIO_OP_CMD_ENQ_TO_HEAD;
+	ctrl_para.start_pktid = pkt_id;
+	ctrl_para.end_pktid = pkt_id;
+	ctrl_para.pkt_num = 1; /* start from 0 */
+	ctrl_para.dst_pid = WDE_DLE_PORT_ID_WDRLS;
+	ctrl_para.dst_qid = WDE_DLE_QUEID_NO_REPORT;
+
+	if (rtw89_mac_set_cpuio(rtwdev, &ctrl_para, true))
+		return -EFAULT;
+
+	return 0;
+}
+
 static int
 rtw89_debug_priv_fw_crash_get(struct seq_file *m, void *v)
 {
@@ -2197,10 +2228,15 @@ rtw89_debug_priv_fw_crash_get(struct seq_file *m, void *v)
 	struct rtw89_dev *rtwdev = debugfs_priv->rtwdev;
 
 	seq_printf(m, "%d\n",
-		   test_bit(RTW89_FLAG_RESTART_TRIGGER, rtwdev->flags));
+		   test_bit(RTW89_FLAG_CRASH_SIMULATING, rtwdev->flags));
 	return 0;
 }
 
+enum rtw89_dbg_crash_simulation_type {
+	RTW89_DBG_SIM_CPU_EXCEPTION = 1,
+	RTW89_DBG_SIM_CTRL_ERROR = 2,
+};
+
 static ssize_t
 rtw89_debug_priv_fw_crash_set(struct file *filp, const char __user *user_buf,
 			      size_t count, loff_t *loff)
@@ -2208,22 +2244,30 @@ rtw89_debug_priv_fw_crash_set(struct file *filp, const char __user *user_buf,
 	struct seq_file *m = (struct seq_file *)filp->private_data;
 	struct rtw89_debugfs_priv *debugfs_priv = m->private;
 	struct rtw89_dev *rtwdev = debugfs_priv->rtwdev;
-	bool fw_crash;
+	int (*sim)(struct rtw89_dev *rtwdev);
+	u8 crash_type;
 	int ret;
 
-	if (!RTW89_CHK_FW_FEATURE(CRASH_TRIGGER, &rtwdev->fw))
-		return -EOPNOTSUPP;
-
-	ret = kstrtobool_from_user(user_buf, count, &fw_crash);
+	ret = kstrtou8_from_user(user_buf, count, 0, &crash_type);
 	if (ret)
 		return -EINVAL;
 
-	if (!fw_crash)
+	switch (crash_type) {
+	case RTW89_DBG_SIM_CPU_EXCEPTION:
+		if (!RTW89_CHK_FW_FEATURE(CRASH_TRIGGER, &rtwdev->fw))
+			return -EOPNOTSUPP;
+		sim = rtw89_fw_h2c_trigger_cpu_exception;
+		break;
+	case RTW89_DBG_SIM_CTRL_ERROR:
+		sim = rtw89_dbg_trigger_ctrl_error;
+		break;
+	default:
 		return -EINVAL;
+	}
 
 	mutex_lock(&rtwdev->mutex);
-	set_bit(RTW89_FLAG_RESTART_TRIGGER, rtwdev->flags);
-	ret = rtw89_fw_h2c_trigger_cpu_exception(rtwdev);
+	set_bit(RTW89_FLAG_CRASH_SIMULATING, rtwdev->flags);
+	ret = sim(rtwdev);
 	mutex_unlock(&rtwdev->mutex);
 
 	if (ret)
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index d2d002d61e97..d126fa963e66 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -2487,8 +2487,7 @@ int rtw89_mac_resume_sch_tx_v1(struct rtw89_dev *rtwdev, u8 mac_idx, u32 tx_en)
 }
 EXPORT_SYMBOL(rtw89_mac_resume_sch_tx_v1);
 
-static u16 rtw89_mac_dle_buf_req(struct rtw89_dev *rtwdev, u16 buf_len,
-				 bool wd)
+u16 rtw89_mac_dle_buf_req(struct rtw89_dev *rtwdev, u16 buf_len, bool wd)
 {
 	u32 val, reg;
 	int ret;
@@ -2508,9 +2507,8 @@ static u16 rtw89_mac_dle_buf_req(struct rtw89_dev *rtwdev, u16 buf_len,
 	return FIELD_GET(B_AX_WD_BUF_STAT_PKTID_MASK, val);
 }
 
-static int rtw89_mac_set_cpuio(struct rtw89_dev *rtwdev,
-			       struct rtw89_cpuio_ctrl *ctrl_para,
-			       bool wd)
+int rtw89_mac_set_cpuio(struct rtw89_dev *rtwdev,
+			struct rtw89_cpuio_ctrl *ctrl_para, bool wd)
 {
 	u32 val, cmd_type, reg;
 	int ret;
diff --git a/drivers/net/wireless/realtek/rtw89/mac.h b/drivers/net/wireless/realtek/rtw89/mac.h
index 9d8574714b05..22db80716b56 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.h
+++ b/drivers/net/wireless/realtek/rtw89/mac.h
@@ -1004,5 +1004,8 @@ enum rtw89_mac_xtal_si_offset {
 int rtw89_mac_write_xtal_si(struct rtw89_dev *rtwdev, u8 offset, u8 val, u8 mask);
 int rtw89_mac_read_xtal_si(struct rtw89_dev *rtwdev, u8 offset, u8 *val);
 void rtw89_mac_pkt_drop_vif(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif);
+u16 rtw89_mac_dle_buf_req(struct rtw89_dev *rtwdev, u16 buf_len, bool wd);
+int rtw89_mac_set_cpuio(struct rtw89_dev *rtwdev,
+			struct rtw89_cpuio_ctrl *ctrl_para, bool wd);
 
 #endif
diff --git a/drivers/net/wireless/realtek/rtw89/ser.c b/drivers/net/wireless/realtek/rtw89/ser.c
index 1b01ff0402fb..c1a4bc1c64d1 100644
--- a/drivers/net/wireless/realtek/rtw89/ser.c
+++ b/drivers/net/wireless/realtek/rtw89/ser.c
@@ -396,6 +396,7 @@ static void ser_idle_st_hdl(struct rtw89_ser *ser, u8 evt)
 	switch (evt) {
 	case SER_EV_STATE_IN:
 		rtw89_hci_recovery_complete(rtwdev);
+		clear_bit(RTW89_FLAG_CRASH_SIMULATING, rtwdev->flags);
 		break;
 	case SER_EV_L1_RESET:
 		ser_state_goto(ser, SER_RESET_TRX_ST);
@@ -632,7 +633,6 @@ static void ser_l2_reset_st_hdl(struct rtw89_ser *ser, u8 evt)
 		fallthrough;
 	case SER_EV_L2_RECFG_DONE:
 		ser_state_goto(ser, SER_IDLE_ST);
-		clear_bit(RTW89_FLAG_RESTART_TRIGGER, rtwdev->flags);
 		break;
 
 	case SER_EV_STATE_OUT: