diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 7f9f302a73cdfc664b7d3b0f97db62652e140735..63d93e316094091b8f42dbfdfdc52ae7fd04ff20 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -2157,6 +2157,10 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
 	if (rhub->min_rev < minor_revision)
 		rhub->min_rev = minor_revision;
 
+	if (xhci->quirks & XHCI_SLOWDOWN_QUIRK)
+		if (major_revision == 0x03)
+			rhub->min_rev = 0;
+
 	/* Port offset and count in the third dword, see section 7.2 */
 	temp = readl(addr + 2);
 	port_offset = XHCI_EXT_PORT_OFF(temp);
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 71ef473df585f72a7fb7d7fd8d22a87ccdb033e5..a5ab8e29facf60ca50869795c6dc29ecc5b44ee3 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -43,6 +43,7 @@
 #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI		0x1aa8
 #define PCI_DEVICE_ID_INTEL_APL_XHCI			0x5aa8
 #define PCI_DEVICE_ID_INTEL_DNV_XHCI			0x19d0
+#define PCI_DEVICE_ID_PHYTIUM_XHCI			0xdc27
 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI	0x15b5
 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_XHCI	0x15b6
 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_XHCI	0x15c1
@@ -250,6 +251,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_VIA)
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
 
+	if (pdev->vendor == PCI_VENDOR_ID_PHYTIUM ||
+	   pdev->device == PCI_DEVICE_ID_PHYTIUM_XHCI) {
+		xhci->quirks |= XHCI_SLOWDOWN_QUIRK;
+	}
+
 	/* See https://bugzilla.kernel.org/show_bug.cgi?id=79511 */
 	if (pdev->vendor == PCI_VENDOR_ID_VIA &&
 			pdev->device == 0x3432)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 8798ed0317864f68103421897bf6df07c0e8db38..cbe0cdfcc9d9d34253912e4a1da80ff2d32c1f1e 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1876,6 +1876,7 @@ struct xhci_hcd {
 #define XHCI_SKIP_PHY_INIT	BIT_ULL(37)
 #define XHCI_DISABLE_SPARSE	BIT_ULL(38)
 #define XHCI_NO_SOFT_RETRY	BIT_ULL(40)
+#define XHCI_SLOWDOWN_QUIRK     BIT_ULL(41)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;