board: ti: beagle_x15: added USB initializtion code

Implemented board_usb_init(), board_usb_cleanup() and
usb_gadget_handle_interrupts() in beagle_x15 board file that
can be invoked by various gadget drivers.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index c3296412adeb4a1a1d60d10e82b8deeef29b5951..0420a5edd52bca2188e4a5f540e01a5d7856fa7d 100644 (file)
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -33,7 +33,7 @@
 #define CONTROL_ID_CODE                CONTROL_CORE_ID_CODE
 #endif
 
-#ifdef CONFIG_DRA7XX
+#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
 #define DRA7_USB_OTG_SS1_BASE          0x48890000
 #define DRA7_USB_OTG_SS1_GLUE_BASE     0x48880000
 #define DRA7_USB3_PHY1_PLL_CTRL                0x4A084C00

diff --git a/board/ti/beagle_x15/board.c b/board/ti/beagle_x15/board.c
index c7f19c79242858b3fbddf2d44dcfb559c34ae562..bcf8cf2f5a46194da3721a98db4d45fb1af56832 100644 (file)
--- a/board/ti/beagle_x15/board.c
+++ b/board/ti/beagle_x15/board.c
@@ -22,7 +22,13 @@
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/sata.h>
 #include <asm/arch/gpio.h>
+#include <asm/arch/omap.h>
 #include <environment.h>
+#include <usb.h>
+#include <linux/usb/gadget.h>
+#include <dwc3-uboot.h>
+#include <dwc3-omap-uboot.h>
+#include <ti-usb-phy-uboot.h>
 
 #include "mux_data.h"
 
@@ -309,6 +315,111 @@ int spl_start_uboot(void)
 }
 #endif
 
+#ifdef CONFIG_USB_DWC3
+static struct dwc3_device usb_otg_ss1 = {
+       .maximum_speed = USB_SPEED_SUPER,
+       .base = DRA7_USB_OTG_SS1_BASE,
+       .tx_fifo_resize = false,
+       .index = 0,
+};
+
+static struct dwc3_omap_device usb_otg_ss1_glue = {
+       .base = (void *)DRA7_USB_OTG_SS1_GLUE_BASE,
+       .utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
+       .index = 0,
+};
+
+static struct ti_usb_phy_device usb_phy1_device = {
+       .pll_ctrl_base = (void *)DRA7_USB3_PHY1_PLL_CTRL,
+       .usb2_phy_power = (void *)DRA7_USB2_PHY1_POWER,
+       .usb3_phy_power = (void *)DRA7_USB3_PHY1_POWER,
+       .index = 0,
+};
+
+static struct dwc3_device usb_otg_ss2 = {
+       .maximum_speed = USB_SPEED_HIGH,
+       .base = DRA7_USB_OTG_SS2_BASE,
+       .tx_fifo_resize = false,
+       .index = 1,
+};
+
+static struct dwc3_omap_device usb_otg_ss2_glue = {
+       .base = (void *)DRA7_USB_OTG_SS2_GLUE_BASE,
+       .utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
+       .index = 1,
+};
+
+static struct ti_usb_phy_device usb_phy2_device = {
+       .usb2_phy_power = (void *)DRA7_USB2_PHY2_POWER,
+       .index = 1,
+};
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+       switch (index) {
+       case 0:
+               if (init == USB_INIT_DEVICE) {
+                       printf("port %d can't be used as device\n", index);
+                       return -EINVAL;
+               } else {
+                       usb_otg_ss1.dr_mode = USB_DR_MODE_HOST;
+                       usb_otg_ss1_glue.vbus_id_status = OMAP_DWC3_ID_GROUND;
+                       setbits_le32((*prcm)->cm_l3init_usb_otg_ss1_clkctrl,
+                                    OTG_SS_CLKCTRL_MODULEMODE_HW |
+                                    OPTFCLKEN_REFCLK960M);
+               }
+
+               ti_usb_phy_uboot_init(&usb_phy1_device);
+               dwc3_omap_uboot_init(&usb_otg_ss1_glue);
+               dwc3_uboot_init(&usb_otg_ss1);
+               break;
+       case 1:
+               if (init == USB_INIT_DEVICE) {
+                       usb_otg_ss2.dr_mode = USB_DR_MODE_PERIPHERAL;
+                       usb_otg_ss2_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
+               } else {
+                       printf("port %d can't be used as host\n", index);
+                       return -EINVAL;
+               }
+
+               ti_usb_phy_uboot_init(&usb_phy2_device);
+               dwc3_omap_uboot_init(&usb_otg_ss2_glue);
+               dwc3_uboot_init(&usb_otg_ss2);
+               break;
+       default:
+               printf("Invalid Controller Index\n");
+       }
+
+       return 0;
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+       switch (index) {
+       case 0:
+       case 1:
+               ti_usb_phy_uboot_exit(index);
+               dwc3_uboot_exit(index);
+               dwc3_omap_uboot_exit(index);
+               break;
+       default:
+               printf("Invalid Controller Index\n");
+       }
+       return 0;
+}
+
+int usb_gadget_handle_interrupts(int index)
+{
+       u32 status;
+
+       status = dwc3_omap_uboot_interrupt_status(index);
+       if (status)
+               dwc3_uboot_handle_interrupt(index);
+
+       return 0;
+}
+#endif
+
 #ifdef CONFIG_DRIVER_TI_CPSW
 
 /* Delay value to add to calibrated value */