diff --git a/sys/dev/pci/if_mwx.c b/sys/dev/pci/if_mwx.c
index c0141b5b3fb..4f1222769a0 100644
--- a/sys/dev/pci/if_mwx.c
+++ b/sys/dev/pci/if_mwx.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_mwx.c,v 1.20 2026/06/03 11:38:02 claudio Exp $ */
+/*	$OpenBSD: if_mwx.c,v 1.21 2026/06/03 11:48:57 claudio Exp $ */
 /*
  * Copyright (c) 2022 Claudio Jeker <claudio@openbsd.org>
  * Copyright (c) 2021 MediaTek Inc.
@@ -1359,10 +1359,19 @@ mwx_attach(struct device *parent, struct device *self, void *aux)
 		return;
 	}
 
+	if (mwx_mcu_fw_pmctrl(sc) != 0 || mwx_mcu_drv_pmctrl(sc) != 0)
+		goto fail;
+
 	hwid = mwx_read(sc, MT_HW_CHIPID) & 0xffff;
 	hwrev = mwx_read(sc, MT_HW_REV) & 0xff;
 
-	printf(": %s, rev: %x.%x\n", pci_intr_string(pa->pa_pc, ih),
+	if (sc->sc_hwtype == MWX_HW_MT7921 &&
+	    (mwx_read(sc, MT_HW_BOUND) & 0x80) != 0) {
+		hwid = 0x7920;
+		sc->sc_hwtype = MWX_HW_MT7920;
+	}
+
+	printf(": %s, rev: MT%x.%x\n", pci_intr_string(pa->pa_pc, ih),
 	    hwid, hwrev);
 
 	mwx_write(sc, MT_WFDMA0_HOST_INT_ENA, 0);
@@ -1371,9 +1380,6 @@ mwx_attach(struct device *parent, struct device *self, void *aux)
 	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET,
 	    mwx_intr, sc, DEVNAME(sc));
 
-	if (mwx_mcu_fw_pmctrl(sc) != 0 || mwx_mcu_drv_pmctrl(sc) != 0)
-		goto fail;
-
 	if ((error = mwx_txwi_alloc(sc, MWX_TXWI_MAX)) != 0) {
 		printf("%s: failed to allocate DMA resources %d\n",
 		    DEVNAME(sc), error);
diff --git a/sys/dev/pci/if_mwxreg.h b/sys/dev/pci/if_mwxreg.h
index 11db4281f95..48075c3c1fe 100644
--- a/sys/dev/pci/if_mwxreg.h
+++ b/sys/dev/pci/if_mwxreg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_mwxreg.h,v 1.12 2026/06/03 11:22:50 claudio Exp $	*/
+/*	$OpenBSD: if_mwxreg.h,v 1.13 2026/06/03 11:48:57 claudio Exp $	*/
 /*
  * Copyright (c) 2022 Claudio Jeker <claudio@openbsd.org>
  * Copyright (C) 2021 MediaTek Inc.
@@ -324,6 +324,7 @@
 #define	MT_WFDMA_DUMMY_CR		0x54000120
 #define	MT_WFDMA_NEED_REINIT		(1U << 1)
 
+#define	MT_HW_BOUND			0x70010020
 #define	MT_HW_CHIPID			0x70010200
 #define	MT_HW_REV			0x70010204