int usbotg_init(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
struct fsl_xcvr_ops *xops;
pr_debug("%s: pdev=0x%p pdata=0x%p\n", __func__, pdev, pdata);
xops = fsl_usb_get_xcvr(pdata->transceiver);
if (!xops) {
printk(KERN_ERR "DR transceiver ops missing\n");
return -EINVAL;
}
pdata->xcvr_ops = xops;
pdata->xcvr_type = xops->xcvr_type;
pdata->pdev = pdev;
if (fsl_check_usbclk() != 0)
return -EINVAL;
if (!mxc_otg_used) {
if (cpu_is_mx50())
/* Turn on AHB CLK for OTG*/
USB_CLKONOFF_CTRL &= ~OTG_AHBCLK_OFF;
pr_debug("%s: grab pins\n", __func__);
if (pdata->gpio_usb_active && pdata->gpio_usb_active())
return -EINVAL;
if (clk_enable(usb_clk)) {
printk(KERN_ERR "clk_enable(usb_clk) failed\n");
return -EINVAL;
}
if (xops->init)
xops->init(xops);
UOG_PORTSC1 = UOG_PORTSC1 & ~PORTSC_PHCD;
if (xops->xcvr_type == PORTSC_PTS_SERIAL) {
if (pdata->operating_mode == FSL_USB2_DR_HOST) {
otg_set_serial_host();
/* need reset */
UOG_USBCMD |= UCMD_RESET;
msleep(100);
} else if (pdata->operating_mode == FSL_USB2_DR_DEVICE)
otg_set_serial_peripheral();
otg_set_serial_xcvr();
} else if (xops->xcvr_type == PORTSC_PTS_ULPI) {
otg_set_ulpi_xcvr();
} else if (xops->xcvr_type == PORTSC_PTS_UTMI) {
otg_set_utmi_xcvr();
}
}
if (usb_register_remote_wakeup(pdev))
pr_debug("DR is not a wakeup source.\n");
mxc_otg_used++;
pr_debug("%s: success\n", __func__);
return 0;
}
int usbotg_init(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
struct fsl_xcvr_ops *xops;
pr_debug("%s: pdev=0x%p pdata=0x%p\n", __func__, pdev, pdata);
xops = fsl_usb_get_xcvr(pdata->transceiver);
if (!xops) {
printk(KERN_ERR "DR transceiver ops missing\n");
return -EINVAL;
}
pdata->xcvr_ops = xops;
pdata->xcvr_type = xops->xcvr_type;
pdata->pdev = pdev;
if (!otg_used) {
if (fsl_check_usbclk() != 0)
return -EINVAL;
pr_debug("%s: grab pins\n", __func__);
if (pdata->gpio_usb_active())
return -EINVAL;
if (clk_enable(usb_clk)) {
printk(KERN_ERR "clk_enable(usb_clk) failed\n");
return -EINVAL;
}
if (xops->init)
xops->init(xops);
UOG_PORTSC1 = UOG_PORTSC1 & ~PORTSC_PHCD;
if (xops->xcvr_type == PORTSC_PTS_SERIAL) {
if (pdata->operating_mode == FSL_USB2_DR_HOST) {
otg_set_serial_host();
/* need reset */
UOG_USBCMD |= UCMD_RESET;
msleep(100);
} else if (pdata->operating_mode == FSL_USB2_DR_DEVICE)
otg_set_serial_peripheral();
otg_set_serial_xcvr();
} else if (xops->xcvr_type == PORTSC_PTS_ULPI) {
otg_set_ulpi_xcvr();
} else if (xops->xcvr_type == PORTSC_PTS_UTMI) {
otg_set_utmi_xcvr();
//pdata->usb_clock_for_pm(0);
}
}
otg_used++;
pr_debug("%s: success\n", __func__);
return 0;
}
static void pmic_event_handler(const PMIC_CONVITY_EVENTS event)
{
if (event & USB_DETECT_4V4_RISE)
pr_debug("%s: USB_DETECT_4V4_RISE\n", __func__);
if (event & USB_DETECT_4V4_FALL)
pr_debug("%s: USB_DETECT_4V4_FALL\n", __func__);
if (event & USB_DETECT_2V0_RISE)
pr_debug("%s: USB_DETECT_2V0_RISE\n", __func__);
if (event & USB_DETECT_2V0_FALL)
pr_debug("%s: USB_DETECT_2V0_FALL\n", __func__);
if (event & USB_DETECT_0V8_RISE)
pr_debug("%s: USB_DETECT_0V8_RISE\n", __func__);
if (event & USB_DETECT_0V8_FALL)
pr_debug("%s: USB_DETECT_0V8_FALL\n", __func__);
if (event & USB_DETECT_MINI_B) {
pr_debug("%s: USB_DETECT_MINI_B\n", __func__);
otg_set_serial_peripheral();
g_event = USB_DETECT_MINI_B;
p_event = MC13783_USB_DETECT_MINI_B;
schedule_work(&xc_work);
}
if (event & USB_DETECT_MINI_A) {
pr_debug("%s: USB_DETECT_MINI_A\n", __func__);
otg_set_serial_host();
g_event = USB_DETECT_MINI_A;
p_event = MC13783_USB_DETECT_MINI_A;
schedule_work(&xc_work);
}
/*
* Mini-B cable insertion/removal does not generate cable-detect
* event, so we rely on the VBUS changes to identify a mini-b cable
* connect. This logic is only used if mini-b is the first cable that
* is connected after bootup. At all other times, removal of mini-a
* cable is used to initialize peripheral.
*/
if (g_event != USB_DETECT_MINI_A && g_event != USB_DETECT_MINI_B) {
if ((event & USB_DETECT_0V8_RISE) &&
(event & USB_DETECT_2V0_RISE) &&
(event & USB_DETECT_4V4_RISE)) {
otg_set_serial_peripheral();
g_event = USB_DETECT_MINI_B;
p_event = MC13783_USB_DETECT_MINI_B;
schedule_work(&xc_work);
}
}
}