dra7xx: Enable USB_PHY3 32KHz clock

DRA7xx has a 32KHz PHY clock for USB_PHY3 that must be enabled
for USB1 instance in Super-Speed.

Signed-off-by: Roger Quadros <rogerq@ti.com>

arch/arm/cpu/armv7/omap5/hw_data.c

@@ -614,9 +614,14 @@ void enable_usb_clocks(int index)
 		setbits_le32((*prcm)->cm_l3init_usb_otg_ss1_clkctrl,
 			     OPTFCLKEN_REFCLK960M);
 
-		/* Enable 32 KHz clock for dwc3 */
+		/* Enable 32 KHz clock for USB_PHY1 */
 		setbits_le32((*prcm)->cm_coreaon_usb_phy1_core_clkctrl,
 			     USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
+
+		/* Enable 32 KHz clock for USB_PHY3 */
+		if (is_dra7xx())
+			setbits_le32((*prcm)->cm_coreaon_usb_phy3_core_clkctrl,
+				     USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
 	} else if (index == 1) {
 		cm_l3init_usb_otg_ss_clkctrl =
 			(*prcm)->cm_l3init_usb_otg_ss2_clkctrl;
@@ -664,9 +669,14 @@ void disable_usb_clocks(int index)
 		clrbits_le32((*prcm)->cm_l3init_usb_otg_ss1_clkctrl,
 			     OPTFCLKEN_REFCLK960M);
 
-		/* Disable 32 KHz clock for dwc3 */
+		/* Disable 32 KHz clock for USB_PHY1 */
 		clrbits_le32((*prcm)->cm_coreaon_usb_phy1_core_clkctrl,
 			     USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
+
+		/* Disable 32 KHz clock for USB_PHY3 */
+		if (is_dra7xx())
+			clrbits_le32((*prcm)->cm_coreaon_usb_phy3_core_clkctrl,
+				     USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
 	} else if (index == 1) {
 		cm_l3init_usb_otg_ss_clkctrl =
 			(*prcm)->cm_l3init_usb_otg_ss2_clkctrl;

arch/arm/cpu/armv7/omap5/prcm-regs.c

@@ -820,6 +820,7 @@ struct prcm_regs const dra7xx_prcm = {
 	.cm_clkmode_dpll_gmac			= 0x4a0052a8,
 	.cm_coreaon_usb_phy1_core_clkctrl	= 0x4a008640,
 	.cm_coreaon_usb_phy2_core_clkctrl	= 0x4a008688,
+	.cm_coreaon_usb_phy3_core_clkctrl	= 0x4a008698,
 	.cm_coreaon_l3init_60m_gfclk_clkctrl	= 0x4a0086c0,
 
 	/* cm1.mpu */

arch/arm/include/asm/omap_common.h

@@ -145,6 +145,7 @@ struct prcm_regs {
 	u32 cm_ssc_modfreqdiv_dpll_unipro;
 	u32 cm_coreaon_usb_phy1_core_clkctrl;
 	u32 cm_coreaon_usb_phy2_core_clkctrl;
+	u32 cm_coreaon_usb_phy3_core_clkctrl;
 	u32 cm_coreaon_l3init_60m_gfclk_clkctrl;
 
 	/* cm2.core */