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Use the post-reset hook to force the controller to host mode. This will

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make both usb ports work on imx6 systems (the OTG port of course will only
work in host mode).
This commit is contained in:
Ian Lepore 2017-01-10 03:53:38 +00:00
parent f2d6ace4a6
commit cfed2e639e
1 changed files with 19 additions and 2 deletions
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21
sys/dev/usb/controller/ehci_imx.c
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@ -157,6 +157,18 @@ struct imx_ehci_softc {
struct resource *ehci_irq_res; /* EHCI core IRQ. */
};
static void
imx_ehci_post_reset(struct ehci_softc *ehci_softc)
{
uint32_t usbmode;
/* Force HOST mode */
usbmode = EOREAD4(ehci_softc, EHCI_USBMODE_NOLPM);
usbmode &= ~EHCI_UM_CM;
usbmode |= EHCI_UM_CM_HOST;
EOWRITE4(ehci_softc, EHCI_USBMODE_NOLPM, usbmode);
}
static int
imx_ehci_probe(device_t dev)
{
@ -282,8 +294,13 @@ imx_ehci_attach(device_t dev)
esc->sc_id_vendor = USB_VENDOR_FREESCALE;
strlcpy(esc->sc_vendor, "Freescale", sizeof(esc->sc_vendor));
/* Set flags that affect ehci_init() behavior. */
esc->sc_flags |= EHCI_SCFLG_DONTRESET | EHCI_SCFLG_NORESTERM;
/*
* Set flags that affect ehci_init() behavior, and hook our post-reset
* code into the standard controller code.
*/
esc->sc_flags |= EHCI_SCFLG_NORESTERM;
esc->sc_vendor_post_reset = imx_ehci_post_reset;
err = ehci_init(esc);
if (err != 0) {
device_printf(dev, "USB init failed, usb_err_t=%d\n",