/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
int ehci_hcd_init(void)
{
#if defined(RT3352_ASIC_BOARD) || defined(RT3883_ASIC_BOARD) || defined(RT5350_ASIC_BOARD)
leave_power_saving();
mdelay(100);
rt_set_host();
mdelay(100);
hccr = (struct ehci_hccr *)(0xb01c0000);
hcor = (struct ehci_hcor *)((uint32_t) hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
printf("Mediatek/Ralink USB EHCI host init hccr %x and hcor %x hc_length %d\n", (uint32_t)hccr, (uint32_t)hcor, (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
return 0;
#else
return -1;
#endif
}
static int rt3xxx_ehci_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
const struct hc_driver *driver = &rt3xxx_ehci_hc_driver;
struct resource *res;
int irq;
int retval;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(&pdev->dev, "Found HC with no IRQ.\n");
return -ENODEV;
}
irq = res->start;
hcd = usb_create_hcd(driver, &pdev->dev, "rt3xxx" /*dev_name(&pdev->dev)*/);
if (!hcd) {
retval = -ENOMEM;
goto fail_create_hcd;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Found HC with no register addr.\n");
retval = -ENODEV;
goto fail_request_resource;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, driver->description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
retval = -EBUSY;
goto fail_request_resource;
}
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
retval = -EFAULT;
goto fail_ioremap;
}
// reset host controller
//rt_usbhost_reset();
// wake up usb module from power saving mode...
try_wake_up();
// change port0 to host mode
rt_set_host();
retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (retval)
goto fail_add_hcd;
return retval;
fail_add_hcd:
iounmap(hcd->regs);
fail_ioremap:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
fail_request_resource:
usb_put_hcd(hcd);
fail_create_hcd:
dev_err(&pdev->dev, "RT3xxx EHCI init fail. %d\n", retval);
return retval;
}
