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board: ti: AM43xx: added USB initializtion code

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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>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Kishon Vijay Abraham I 2015-02-23 18:40:21 +05:30 committed by Marek Vasut
parent 7a5a3e37bf
commit 9f81eb77ea
2 changed files with 117 additions and 0 deletions
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9
arch/arm/include/asm/arch-am33xx/hardware_am43xx.h
View file

@ -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)

108
board/ti/am43xx/board.c
View file

@ -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>
@ -24,6 +25,10 @@
#include <power/tps62362.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;
@ -636,6 +641,109 @@ 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)