3 files changed, 32 insertions, 2 deletions
diff --git a/payloads/libpayload/drivers/usb/generic_hub.c b/payloads/libpayload/drivers/usb/generic_hub.c
index 9d444ee792..7263400840 100644
--- a/payloads/libpayload/drivers/usb/generic_hub.c
+++ b/payloads/libpayload/drivers/usb/generic_hub.c
@@ -218,9 +218,11 @@ generic_hub_poll(usbdev_t *const dev)
 	if (!hub)
 		return;
 
-	if (hub->ops->hub_status_changed &&
-			hub->ops->hub_status_changed(dev) != 1)
+	if (!(dev->quirks & USB_QUIRK_HUB_NO_USBSTS_PCD) &&
+	    hub->ops->hub_status_changed &&
+	    hub->ops->hub_status_changed(dev) != 1) {
 		return;
+	}
 
 	int port;
 	for (port = 1; port <= hub->num_ports; ++port) {
diff --git a/payloads/libpayload/drivers/usb/quirks.c b/payloads/libpayload/drivers/usb/quirks.c
index 0a3514933c..d5be0e6cda 100644
--- a/payloads/libpayload/drivers/usb/quirks.c
+++ b/payloads/libpayload/drivers/usb/quirks.c
@@ -59,6 +59,30 @@ usb_quirks_t usb_quirks[] = {
 	 */
 };
 
+#if CONFIG(LP_USB_PCI)
+usb_quirks_t pci_quirks[] = {
+	/* QEMU XHCI root hub does not implement port change detect */
+	{ 0x1b36, 0x000d, USB_QUIRK_HUB_NO_USBSTS_PCD, 0 },
+};
+
+u32 pci_quirk_check(pcidev_t controller)
+{
+	int i;
+	u16 vendor = pci_read_config16(controller, REG_VENDOR_ID);
+	u16 device = pci_read_config16(controller, REG_DEVICE_ID);
+
+	for (i = 0; i < ARRAY_SIZE(pci_quirks); i++) {
+		if ((pci_quirks[i].vendor == vendor) &&
+		    (pci_quirks[i].device == device)) {
+			printf("PCI quirks enabled: %08x\n", pci_quirks[i].quirks);
+			return pci_quirks[i].quirks;
+		}
+	}
+
+	return USB_QUIRK_NONE;
+}
+#endif
+
 u32 usb_quirk_check(u16 vendor, u16 device)
 {
 	int i;
diff --git a/payloads/libpayload/drivers/usb/xhci.c b/payloads/libpayload/drivers/usb/xhci.c
index ef1d73ff68..21af579f4c 100644
--- a/payloads/libpayload/drivers/usb/xhci.c
+++ b/payloads/libpayload/drivers/usb/xhci.c
@@ -314,9 +314,13 @@ xhci_pci_init (pcidev_t addr)
 
 	controller = xhci_init((unsigned long)reg_addr);
 	if (controller) {
+		xhci_t *xhci = controller->instance;
 		controller->pcidev = addr;
 
 		xhci_switch_ppt_ports(addr);
+
+		/* Set up any quirks for controller root hub */
+		xhci->roothub->quirks = pci_quirk_check(addr);
 	}
 
 	return controller;