diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index eea60b6c927b..12410a2788d8 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -310,6 +310,7 @@ static struct usb_ehci_pdata octeon_ehci_pdata = {
 #ifdef __BIG_ENDIAN
 	.big_endian_mmio	= 1,
 #endif
+	.dma_mask_64	= 1,
 	.power_on	= octeon_ehci_power_on,
 	.power_off	= octeon_ehci_power_off,
 };
@@ -331,8 +332,6 @@ static void __init octeon_ehci_hw_start(struct device *dev)
 	octeon2_usb_clocks_stop();
 }
 
-static u64 octeon_ehci_dma_mask = DMA_BIT_MASK(64);
-
 static int __init octeon_ehci_device_init(void)
 {
 	struct platform_device *pd;
@@ -347,7 +346,6 @@ static int __init octeon_ehci_device_init(void)
 	if (!pd)
 		return 0;
 
-	pd->dev.dma_mask = &octeon_ehci_dma_mask;
 	pd->dev.platform_data = &octeon_ehci_pdata;
 	octeon_ehci_hw_start(&pd->dev);
 
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 28aae64a8bee..63f2622926c4 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -155,7 +155,8 @@ static int ehci_platform_probe(struct platform_device *dev)
 	if (!pdata)
 		pdata = &ehci_platform_defaults;
 
-	err = dma_coerce_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
+	err = dma_coerce_mask_and_coherent(&dev->dev,
+		pdata->dma_mask_64 ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32));
 	if (err)
 		return err;
 
diff --git a/include/linux/usb/ehci_pdriver.h b/include/linux/usb/ehci_pdriver.h
index 6287b398abd9..db0431b39a63 100644
--- a/include/linux/usb/ehci_pdriver.h
+++ b/include/linux/usb/ehci_pdriver.h
@@ -48,6 +48,7 @@ struct usb_ehci_pdata {
 	unsigned	big_endian_mmio:1;
 	unsigned	no_io_watchdog:1;
 	unsigned	reset_on_resume:1;
+	unsigned	dma_mask_64:1;
 
 	/* Turn on all power and clocks */
 	int (*power_on)(struct platform_device *pdev);