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

Lukasz Majewski
2015-02-16T11:50:53Z

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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