uint32_t cmd, reg;
int max_ports = HCS_N_PORTS(ehci_readl(&ctrl->hccr->cr_hcsparams));
- if (!ctrl || !ctrl->hcor)
- return -EINVAL;
-
cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
/* If not run, directly return */
if (!(cmd & CMD_RUN))
* dangerous operation, it's responsibility of the calling
* code to make sure enough space is reserved.
*/
- invalidate_dcache_range((unsigned long)buffer,
- ALIGN((unsigned long)buffer + length, ARCH_DMA_MINALIGN));
+ if (buffer != NULL && length > 0)
+ invalidate_dcache_range((unsigned long)buffer,
+ ALIGN((unsigned long)buffer + length, ARCH_DMA_MINALIGN));
/* Check that the TD processing happened */
if (QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_ACTIVE)
rc = ehci_hcd_init(index, init, &ctrl->hccr, &ctrl->hcor);
if (rc)
return rc;
+ if (!ctrl->hccr || !ctrl->hcor)
+ return -1;
if (init == USB_INIT_DEVICE)
goto done;
return _ehci_destroy_int_queue(udev, queue);
}
+static int ehci_get_max_xfer_size(struct udevice *dev, size_t *size)
+{
+ /*
+ * EHCD can handle any transfer length as long as there is enough
+ * free heap space left, hence set the theoretical max number here.
+ */
+ *size = SIZE_MAX;
+
+ return 0;
+}
+
int ehci_register(struct udevice *dev, struct ehci_hccr *hccr,
struct ehci_hcor *hcor, const struct ehci_ops *ops,
uint tweaks, enum usb_init_type init)
{
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
struct ehci_ctrl *ctrl = dev_get_priv(dev);
- int ret;
+ int ret = -1;
debug("%s: dev='%s', ctrl=%p, hccr=%p, hcor=%p, init=%d\n", __func__,
dev->name, ctrl, hccr, hcor, init);
+ if (!ctrl || !hccr || !hcor)
+ goto err;
+
priv->desc_before_addr = true;
ehci_setup_ops(ctrl, ops);
.create_int_queue = ehci_create_int_queue,
.poll_int_queue = ehci_poll_int_queue,
.destroy_int_queue = ehci_destroy_int_queue,
+ .get_max_xfer_size = ehci_get_max_xfer_size,
};
#endif