Re: [U-Boot] [u-boot 38/40] board: ti: AM43xx: added USB initializtion code

Hi Kishon,

Implemented board_usb_init(), board_usb_cleanup() and usb_gadget_handle_interrupts() in am43xx board file that can be invoked by various gadget drivers.

Signed-off-by: Kishon Vijay Abraham I kishon@ti.com

arch/arm/include/asm/arch-am33xx/hardware_am43xx.h | 9 ++ board/ti/am43xx/board.c | 108 ++++++++++++++++++++ 2 files changed, 117 insertions(+)

diff --git a/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h b/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h index 5f259da..110f329 100644 --- a/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h +++ b/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h @@ -61,6 +61,15 @@ /* RTC base address */ #define RTC_BASE 0x44E3E000

+/* USB OTG */ +#define USB_OTG_SS1_BASE 0x48390000 +#define USB_OTG_SS1_GLUE_BASE 0x48380000 +#define USB2_PHY1_POWER 0x44E10620

+#define USB_OTG_SS2_BASE 0x483D0000 +#define USB_OTG_SS2_GLUE_BASE 0x483C0000 +#define USB2_PHY2_POWER 0x44E10628

/* USB Clock Control */ #define PRM_PER_USB_OTG_SS0_CLKCTRL (CM_PER + 0x260) #define PRM_PER_USB_OTG_SS1_CLKCTRL (CM_PER + 0x268) diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index a1c3c17..a8796b1 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -12,6 +12,7 @@ #include <i2c.h> #include <asm/errno.h> #include <spl.h> +#include <usb.h> #include <asm/arch/clock.h> #include <asm/arch/sys_proto.h> #include <asm/arch/mux.h> @@ -23,6 +24,10 @@ #include <power/tps65218.h> #include <miiphy.h> #include <cpsw.h> +#include <linux/usb/gadget.h> +#include <dwc3-uboot.h> +#include <dwc3-omap-uboot.h> +#include <ti-usb-phy-uboot.h>

DECLARE_GLOBAL_DATA_PTR;

@@ -686,6 +691,109 @@ int board_late_init(void) } #endif

+#ifdef CONFIG_USB_DWC3 +static struct dwc3_device usb_otg_ss1 = {

• .maximum_speed = USB_SPEED_HIGH,
• .base = USB_OTG_SS1_BASE,
• .tx_fifo_resize = false,
• .index = 0,

+};

+static struct dwc3_omap_device usb_otg_ss1_glue = {

• .base = (void *)USB_OTG_SS1_GLUE_BASE,
• .utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
• .vbus_id_status = OMAP_DWC3_VBUS_VALID,
• .index = 0,

+};

+static struct ti_usb_phy_device usb_phy1_device = {

• .usb2_phy_power = (void *)USB2_PHY1_POWER,
• .index = 0,

+};

+static struct dwc3_device usb_otg_ss2 = {

• .maximum_speed = USB_SPEED_HIGH,
• .base = USB_OTG_SS2_BASE,
• .tx_fifo_resize = false,
• .index = 1,

+};

+static struct dwc3_omap_device usb_otg_ss2_glue = {

• .base = (void *)USB_OTG_SS2_GLUE_BASE,
• .utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
• .vbus_id_status = OMAP_DWC3_VBUS_VALID,
• .index = 1,

+};

+static struct ti_usb_phy_device usb_phy2_device = {

• .usb2_phy_power = (void *)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) {
  

• 	usb_otg_ss1.dr_mode = USB_DR_MODE_PERIPHERAL;
  

• 	usb_otg_ss1_glue.vbus_id_status =
  

OMAP_DWC3_VBUS_VALID;

• } else {
  

• 	usb_otg_ss1.dr_mode = USB_DR_MODE_HOST;
  

• 	usb_otg_ss1_glue.vbus_id_status =
  

OMAP_DWC3_ID_GROUND;

• }
  

• dwc3_omap_uboot_init(&usb_otg_ss1_glue);
  

• ti_usb_phy_uboot_init(&usb_phy1_device);
  

• 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 {
  

• 	usb_otg_ss2.dr_mode = USB_DR_MODE_HOST;
  

• 	usb_otg_ss2_glue.vbus_id_status =
  

OMAP_DWC3_ID_GROUND;

• }
  

• 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(void) +{

• u32 status;
• status = dwc3_omap_uboot_interrupt_status(0);
• if (status)

• dwc3_uboot_handle_interrupt(0);
  

• return 0;

+} +#endif

#ifdef CONFIG_DRIVER_TI_CPSW

static void cpsw_control(int enabled)

Reviewed-by: Lukasz Majewski l.majewski@samsung.com