// Check if need companion controllers for full/low speed devices
static void
ehci_note_port(struct usb_ehci_s *cntl)
{
if (--cntl->checkports)
// Ports still being detected.
return;
if (! cntl->legacycount)
// No full/low speed devices found.
return;
// Start companion controllers.
int i;
for (i=0; i<ARRAY_SIZE(cntl->companion); i++) {
struct pci_device *pci = cntl->companion[i];
if (!pci)
break;
// ohci/uhci_setup call pci_config_X - don't run from irq handler.
wait_preempt();
if (pci_classprog(pci) == PCI_CLASS_SERIAL_USB_UHCI)
uhci_setup(pci, cntl->usb.busid + i);
else if (pci_classprog(pci) == PCI_CLASS_SERIAL_USB_OHCI)
ohci_setup(pci, cntl->usb.busid + i);
}
}
static int ohci_pci_reset (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
int ret = 0;
if (hcd->self.controller) {
const struct pci_device_id *quirk_id;
quirk_id = pci_match_id(ohci_pci_quirks, pdev);
if (quirk_id != NULL) {
int (*quirk)(struct usb_hcd *ohci);
quirk = (void *)quirk_id->driver_data;
ret = quirk(hcd);
}
}
if (ret == 0)
ret = ohci_setup(hcd);
/*
* After ohci setup RWC may not be set for add-in PCI cards.
* This transfers PCI PM wakeup capabilities.
*/
if (device_can_wakeup(&pdev->dev))
ohci->hc_control |= OHCI_CTRL_RWC;
return ret;
}
void
__usb_setup(void *data)
{
dprintf(3, "init usb\n");
xhci_setup();
ehci_setup();
uhci_setup();
ohci_setup();
}
void
usb_setup(void)
{
ASSERT32FLAT();
if (! CONFIG_USB)
return;
dprintf(3, "init usb\n");
usb_time_sigatt = romfile_loadint("etc/usb-time-sigatt", USB_TIME_SIGATT);
xhci_setup();
ehci_setup();
uhci_setup();
ohci_setup();
}
static int ohci_da8xx_reset(struct usb_hcd *hcd)
{
struct device *dev = hcd->self.controller;
struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int result;
u32 rh_a;
dev_dbg(dev, "starting USB controller\n");
result = ohci_da8xx_enable(hcd);
if (result < 0)
return result;
/*
* DA8xx only have 1 port connected to the pins but the HC root hub
* register A reports 2 ports, thus we'll have to override it...
*/
ohci->num_ports = 1;
result = ohci_setup(hcd);
if (result < 0) {
ohci_da8xx_disable(hcd);
return result;
}
/*
* Since we're providing a board-specific root hub port power control
* and over-current reporting, we have to override the HC root hub A
* register's default value, so that ohci_hub_control() could return
* the correct hub descriptor...
*/
rh_a = ohci_readl(ohci, &ohci->regs->roothub.a);
if (ohci_da8xx_has_set_power(hcd)) {
rh_a &= ~RH_A_NPS;
rh_a |= RH_A_PSM;
}
if (ohci_da8xx_has_oci(hcd)) {
rh_a &= ~RH_A_NOCP;
rh_a |= RH_A_OCPM;
}
if (ohci_da8xx_has_potpgt(hcd)) {
rh_a &= ~RH_A_POTPGT;
rh_a |= hub->potpgt << 24;
}
ohci_writel(ohci, rh_a, &ohci->regs->roothub.a);
return result;
}
static int ohci_omap_reset(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct omap_usb_config *config = dev_get_platdata(hcd->self.controller);
int need_transceiver = (config->otg != 0);
int ret;
dev_dbg(hcd->self.controller, "starting USB Controller\n");
if (config->otg) {
hcd->self.otg_port = config->otg;
/* default/minimum OTG power budget: 8 mA */
hcd->power_budget = 8;
}
/* boards can use OTG transceivers in non-OTG modes */
need_transceiver = need_transceiver
|| machine_is_omap_h2() || machine_is_omap_h3();
/* XXX OMAP16xx only */
if (config->ocpi_enable)
config->ocpi_enable();
#ifdef CONFIG_USB_OTG
if (need_transceiver) {
hcd->phy = usb_get_phy(USB_PHY_TYPE_USB2);
if (!IS_ERR_OR_NULL(hcd->phy)) {
int status = otg_set_host(hcd->phy->otg,
&ohci_to_hcd(ohci)->self);
dev_dbg(hcd->self.controller, "init %s phy, status %d\n",
hcd->phy->label, status);
if (status) {
usb_put_phy(hcd->phy);
return status;
}
} else {
dev_err(hcd->self.controller, "can't find phy\n");
return -ENODEV;
}
ohci->start_hnp = start_hnp;
}
#endif
omap_ohci_clock_power(1);
if (cpu_is_omap15xx()) {
omap_1510_local_bus_power(1);
omap_1510_local_bus_init();
}
ret = ohci_setup(hcd);
if (ret < 0)
return ret;
if (config->otg || config->rwc) {
ohci->hc_control = OHCI_CTRL_RWC;
writel(OHCI_CTRL_RWC, &ohci->regs->control);
}
/* board-specific power switching and overcurrent support */
if (machine_is_omap_osk() || machine_is_omap_innovator()) {
u32 rh = roothub_a (ohci);
/* power switching (ganged by default) */
rh &= ~RH_A_NPS;
/* TPS2045 switch for internal transceiver (port 1) */
if (machine_is_omap_osk()) {
ohci_to_hcd(ohci)->power_budget = 250;
rh &= ~RH_A_NOCP;
/* gpio9 for overcurrent detction */
omap_cfg_reg(W8_1610_GPIO9);
gpio_request(9, "OHCI overcurrent");
gpio_direction_input(9);
/* for paranoia's sake: disable USB.PUEN */
omap_cfg_reg(W4_USB_HIGHZ);
}
ohci_writel(ohci, rh, &ohci->regs->roothub.a);
ohci->flags &= ~OHCI_QUIRK_HUB_POWER;
} else if (machine_is_nokia770()) {
/* We require a self-powered hub, which should have
* plenty of power. */
ohci_to_hcd(ohci)->power_budget = 0;
}
/* FIXME khubd hub requests should manage power switching */
omap_ohci_transceiver_power(1);
/* board init will have already handled HMC and mux setup.
* any external transceiver should already be initialized
* too, so all configured ports use the right signaling now.
*/
return 0;
}
