usb: dwc3: Update register fields for SuperSpeedPlus

Update various registers fields definitions for the DWC_usb31 controller
for SuperSpeedPlus support.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/dwc3/core.h

@@ -223,7 +223,8 @@
 /* Global HWPARAMS3 Register */
 #define DWC3_GHWPARAMS3_SSPHY_IFC(n)		((n) & 3)
 #define DWC3_GHWPARAMS3_SSPHY_IFC_DIS		0
-#define DWC3_GHWPARAMS3_SSPHY_IFC_ENA		1
+#define DWC3_GHWPARAMS3_SSPHY_IFC_GEN1		1
+#define DWC3_GHWPARAMS3_SSPHY_IFC_GEN2		2 /* DWC_usb31 only */
 #define DWC3_GHWPARAMS3_HSPHY_IFC(n)		(((n) & (3 << 2)) >> 2)
 #define DWC3_GHWPARAMS3_HSPHY_IFC_DIS		0
 #define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI		1
@@ -249,6 +250,7 @@
 #define DWC3_DCFG_DEVADDR_MASK	DWC3_DCFG_DEVADDR(0x7f)
 
 #define DWC3_DCFG_SPEED_MASK	(7 << 0)
+#define DWC3_DCFG_SUPERSPEED_PLUS (5 << 0)  /* DWC_usb31 only */
 #define DWC3_DCFG_SUPERSPEED	(4 << 0)
 #define DWC3_DCFG_HIGHSPEED	(0 << 0)
 #define DWC3_DCFG_FULLSPEED2	(1 << 0)
@@ -339,6 +341,7 @@
 
 #define DWC3_DSTS_CONNECTSPD		(7 << 0)
 
+#define DWC3_DSTS_SUPERSPEED_PLUS	(5 << 0) /* DWC_usb31 only */
 #define DWC3_DSTS_SUPERSPEED		(4 << 0)
 #define DWC3_DSTS_HIGHSPEED		(0 << 0)
 #define DWC3_DSTS_FULLSPEED2		(1 << 0)