diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/ci_udc.c | 5 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-mx6.c | 23 |
2 files changed, 22 insertions, 6 deletions
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index 226a9e6d67..542684c1c3 100644 --- a/drivers/usb/gadget/ci_udc.c +++ b/drivers/usb/gadget/ci_udc.c @@ -402,6 +402,9 @@ align: flush: hwaddr = (unsigned long)ci_req->hw_buf; + if (!hwaddr) + return 0; + aligned_used_len = roundup(req->length, ARCH_DMA_MINALIGN); flush_dcache_range(hwaddr, hwaddr + aligned_used_len); @@ -415,7 +418,7 @@ static void ci_debounce(struct ci_req *ci_req, int in) unsigned long hwaddr = (unsigned long)ci_req->hw_buf; uint32_t aligned_used_len; - if (in) + if (in || !hwaddr) return; aligned_used_len = roundup(req->actual, ARCH_DMA_MINALIGN); diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index 1bd6147c76..060b02accc 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -543,7 +543,7 @@ static int ehci_usb_phy_mode(struct udevice *dev) plat->init_type = USB_INIT_DEVICE; else plat->init_type = USB_INIT_HOST; - } else if (is_mx7()) { + } else if (is_mx7() || is_imx8mm() || is_imx8mn()) { phy_status = (void __iomem *)(addr + USBNC_PHY_STATUS_OFFSET); val = readl(phy_status); @@ -573,9 +573,8 @@ static int ehci_usb_of_to_plat(struct udevice *dev) case USB_DR_MODE_PERIPHERAL: plat->init_type = USB_INIT_DEVICE; break; - case USB_DR_MODE_OTG: - case USB_DR_MODE_UNKNOWN: - return ehci_usb_phy_mode(dev); + default: + plat->init_type = USB_INIT_UNKNOWN; }; return 0; @@ -677,6 +676,20 @@ static int ehci_usb_probe(struct udevice *dev) mdelay(1); #endif + /* + * If the device tree didn't specify host or device, + * the default is USB_INIT_UNKNOWN, so we need to check + * the register. For imx8mm and imx8mn, the clocks need to be + * running first, so we defer the check until they are. + */ + if (priv->init_type == USB_INIT_UNKNOWN) { + ret = ehci_usb_phy_mode(dev); + if (ret) + goto err_clk; + else + priv->init_type = plat->init_type; + } + #if CONFIG_IS_ENABLED(DM_REGULATOR) ret = device_get_supply_regulator(dev, "vbus-supply", &priv->vbus_supply); @@ -741,8 +754,8 @@ err_regulator: #if CONFIG_IS_ENABLED(DM_REGULATOR) if (priv->vbus_supply) regulator_set_enable(priv->vbus_supply, false); -err_clk: #endif +err_clk: #if CONFIG_IS_ENABLED(CLK) clk_disable(&priv->clk); #else |