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

[Lukasz Majewski <l.majewski@samsung.com>]

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>

-- 
Best regards,

Lukasz Majewski

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