diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index d15f1716718e..e626c022c054 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -184,8 +184,15 @@
 #define DWC3_GCTL_GBLHIBERNATIONEN	(1 << 1)
 #define DWC3_GCTL_DSBLCLKGTNG		(1 << 0)
 
+/* Global User Control Register */
+#define DWC3_GUCTL_REFCLKPER		(0x3FF << 22)
+
+/* Global Debug LTSSM Register */
+#define DWC3_GDBGLTSSM_LINKSTATE_MASK	(0xF << 22)
+
 /* Global USB2 PHY Configuration Register */
 #define DWC3_GUSB2PHYCFG_PHYSOFTRST	(1 << 31)
+#define DWC3_GUSB2PHYCFG_ENBLSLPM	(1 << 8)
 #define DWC3_GUSB2PHYCFG_SUSPHY		(1 << 6)
 #define DWC3_GUSB2PHYCFG_ULPI_UTMI	(1 << 4)
 #define DWC3_GUSB2PHYCFG_ENBLSLPM	(1 << 8)