diff options
Diffstat (limited to 'drivers/usb/imx/chipidea-imx.c')
| -rw-r--r-- | drivers/usb/imx/chipidea-imx.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/imx/chipidea-imx.c b/drivers/usb/imx/chipidea-imx.c index 505f5eb35d..3e3e6a365f 100644 --- a/drivers/usb/imx/chipidea-imx.c +++ b/drivers/usb/imx/chipidea-imx.c @@ -51,6 +51,7 @@ struct imx_chipidea { static int imx_chipidea_port_init(void *drvdata) { struct imx_chipidea *ci = drvdata; + uint32_t portsc; int ret; if ((ci->flags & MXC_EHCI_PORTSC_MASK) == MXC_EHCI_MODE_ULPI) { @@ -74,6 +75,14 @@ static int imx_chipidea_port_init(void *drvdata) if (ret) dev_err(ci->dev, "misc init failed: %s\n", strerror(-ret)); + /* PFSC bit is reset by ehci_reset(), thus have to set it not in + * probe but here, after ehci_reset() is already called */ + if (ci->flags & MXC_EHCI_PFSC) { + portsc = readl(ci->base + 0x184); + portsc |= MXC_EHCI_PFSC; + writel(portsc, ci->base + 0x184); + } + return ret; } @@ -159,6 +168,10 @@ static int imx_chipidea_probe_dt(struct imx_chipidea *ci) "over-current-active-high", NULL)) ci->flags |= MXC_EHCI_OC_PIN_ACTIVE_LOW; + if (of_usb_get_maximum_speed(ci->dev->device_node, NULL) == + USB_SPEED_FULL) + ci->flags |= MXC_EHCI_PFSC; + return 0; } |