static int imx_chipidea_probe(struct device_d *dev)
{
struct imxusb_platformdata *pdata = dev->platform_data;
int ret;
void __iomem *base;
struct imx_chipidea *ci;
uint32_t portsc;
ci = xzalloc(sizeof(*ci));
ci->dev = dev;
if (IS_ENABLED(CONFIG_OFDEVICE) && dev->device_node) {
ret = imx_chipidea_probe_dt(ci);
if (ret)
return ret;
} else {
if (!pdata) {
dev_err(dev, "no pdata!\n");
return -EINVAL;
}
ci->portno = dev->id;
ci->flags = pdata->flags;
ci->mode = pdata->mode;
}
base = dev_request_mem_region(dev, 0);
if (!base)
return -ENODEV;
ci->base = base;
ci->data.init = imx_chipidea_port_init;
ci->data.post_init = imx_chipidea_port_post_init;
ci->data.drvdata = ci;
if ((ci->flags & MXC_EHCI_PORTSC_MASK) == MXC_EHCI_MODE_HSIC)
imx_chipidea_port_init(ci);
if (ci->phymode != USBPHY_INTERFACE_MODE_UNKNOWN) {
portsc = readl(base + 0x184);
portsc &= ~MXC_EHCI_PORTSC_MASK;
portsc |= ci->flags & MXC_EHCI_PORTSC_MASK;
writel(portsc, base + 0x184);
}
ci->data.hccr = base + 0x100;
ci->data.hcor = base + 0x140;
ci->data.flags = EHCI_HAS_TT;
if (ci->mode == IMX_USB_MODE_HOST && IS_ENABLED(CONFIG_USB_EHCI)) {
ret = ehci_register(dev, &ci->data);
} else if (ci->mode == IMX_USB_MODE_DEVICE && IS_ENABLED(CONFIG_USB_GADGET_DRIVER_ARC)) {
ret = ci_udc_register(dev, base);
} else {
dev_err(dev, "No supported role\n");
ret = -ENODEV;
}
return ret;
};
static int imx_chipidea_probe(struct device_d *dev)
{
struct imxusb_platformdata *pdata = dev->platform_data;
int ret;
void __iomem *base;
struct ehci_data data = {};
uint32_t portsc;
if (!pdata) {
dev_err(dev, "no pdata!\n");
return -EINVAL;
}
base = dev_request_mem_region(dev, 0);
if (!base)
return -ENODEV;
data.init = imx_chipidea_port_init;
data.post_init = imx_chipidea_port_post_init;
data.drvdata = dev;
portsc = readl(base + 0x184);
portsc &= ~MXC_EHCI_PORTSC_MASK;
portsc |= pdata->flags & MXC_EHCI_PORTSC_MASK;
writel(portsc, base + 0x184);
imx_chipidea_port_init(dev);
if ((pdata->flags & MXC_EHCI_PORTSC_MASK) == MXC_EHCI_MODE_ULPI) {
dev_dbg(dev, "using ULPI phy\n");
if (IS_ENABLED(CONFIG_USB_ULPI)) {
ret = ulpi_setup(base + 0x170, 1);
} else {
dev_err(dev, "no ULPI support available\n");
ret = -ENODEV;
}
if (ret)
return ret;
}
data.hccr = base + 0x100;
data.hcor = base + 0x140;
data.flags = EHCI_HAS_TT;
if (pdata->mode == IMX_USB_MODE_HOST && IS_ENABLED(CONFIG_USB_EHCI)) {
ret = ehci_register(dev, &data);
} else if (pdata->mode == IMX_USB_MODE_DEVICE && IS_ENABLED(CONFIG_USB_GADGET_DRIVER_ARC)) {
ret = ci_udc_register(dev, base);
} else {
dev_err(dev, "No supported role\n");
ret = -ENODEV;
}
return ret;
};
static int ci_register_role(struct imx_chipidea *ci)
{
int ret;
if (ci->role_registered != IMX_USB_MODE_OTG)
return -EBUSY;
if (ci->mode == IMX_USB_MODE_HOST) {
if (IS_ENABLED(CONFIG_USB_EHCI)) {
ci->role_registered = 1;
ret = regulator_enable(ci->vbus);
if (ret)
return ret;
ret = ehci_register(ci->dev, &ci->data);
if (!ret)
return 0;
regulator_disable(ci->vbus);
} else {
dev_err(ci->dev, "Host support not available\n");
return -ENODEV;
}
}
if (ci->mode == IMX_USB_MODE_DEVICE) {
if (IS_ENABLED(CONFIG_USB_GADGET_DRIVER_ARC)) {
ci->role_registered = 1;
return ci_udc_register(ci->dev, ci->base);
} else {
dev_err(ci->dev, "USB device support not available\n");
return -ENODEV;
}
}
return 0;
}
