diff options
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 9ff9abc7e3aa..c45a116f50fe 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -761,6 +761,35 @@ static int ehci_run (struct usb_hcd *hcd) return 0; } +static int __maybe_unused ehci_setup (struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + int retval; + + ehci->regs = (void __iomem *)ehci->caps + + HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); + dbg_hcs_params(ehci, "reset"); + dbg_hcc_params(ehci, "reset"); + + /* cache this readonly data; minimize chip reads */ + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + + ehci->sbrn = HCD_USB2; + + retval = ehci_halt(ehci); + if (retval) + return retval; + + /* data structure init */ + retval = ehci_init(hcd); + if (retval) + return retval; + + ehci_reset(ehci); + + return 0; +} + /*-------------------------------------------------------------------------*/ static irqreturn_t ehci_irq (struct usb_hcd *hcd) |