usb: 64-bit architectures support for xHCI

This commit allows xHCI to use both 64 and 32 bit memory
physical addresses depending on architecture it's being built for.
Also it makes use of readq()/writeq() on 64-bit systems

Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com>
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>

1 files changed, 10 insertions, 10 deletions

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 89908e8..10f11cd 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -31,7 +31,7 @@
  * @param len	the length of the cache line to be flushed
  * @return none
  */
-void xhci_flush_cache(uint32_t addr, u32 len)
+void xhci_flush_cache(uintptr_t addr, u32 len)
 {
 	BUG_ON((void *)addr == NULL || len == 0);
 
@@ -46,7 +46,7 @@ void xhci_flush_cache(uint32_t addr, u32 len)
  * @param len	the length of the cache line to be invalidated
  * @return none
  */
-void xhci_inval_cache(uint32_t addr, u32 len)
+void xhci_inval_cache(uintptr_t addr, u32 len)
 {
 	BUG_ON((void *)addr == NULL || len == 0);
 
@@ -175,7 +175,7 @@ static void *xhci_malloc(unsigned int size)
 	BUG_ON(!ptr);
 	memset(ptr, '\0', size);
 
-	xhci_flush_cache((uint32_t)ptr, size);
+	xhci_flush_cache((uintptr_t)ptr, size);
 
 	return ptr;
 }
@@ -400,8 +400,8 @@ int xhci_alloc_virt_device(struct usb_device *udev)
 	/* Point to output device context in dcbaa. */
 	ctrl->dcbaa->dev_context_ptrs[slot_id] = byte_64;
 
-	xhci_flush_cache((uint32_t)&ctrl->dcbaa->dev_context_ptrs[slot_id],
-							sizeof(__le64));
+	xhci_flush_cache((uintptr_t)&ctrl->dcbaa->dev_context_ptrs[slot_id],
+			 sizeof(__le64));
 	return 0;
 }
 
@@ -478,8 +478,8 @@ int xhci_mem_init(struct xhci_ctrl *ctrl, struct xhci_hccr *hccr,
 		entry->rsvd = 0;
 		seg = seg->next;
 	}
-	xhci_flush_cache((uint32_t)ctrl->erst.entries,
-			ERST_NUM_SEGS * sizeof(struct xhci_erst_entry));
+	xhci_flush_cache((uintptr_t)ctrl->erst.entries,
+			 ERST_NUM_SEGS * sizeof(struct xhci_erst_entry));
 
 	deq = (unsigned long)ctrl->event_ring->dequeue;
 
@@ -496,7 +496,7 @@ int xhci_mem_init(struct xhci_ctrl *ctrl, struct xhci_hccr *hccr,
 	/* this is the event ring segment table pointer */
 	val_64 = xhci_readq(&ctrl->ir_set->erst_base);
 	val_64 &= ERST_PTR_MASK;
-	val_64 |= ((u32)(ctrl->erst.entries) & ~ERST_PTR_MASK);
+	val_64 |= ((uintptr_t)(ctrl->erst.entries) & ~ERST_PTR_MASK);
 
 	xhci_writeq(&ctrl->ir_set->erst_base, val_64);
 
@@ -715,6 +715,6 @@ void xhci_setup_addressable_virt_dev(struct usb_device *udev)
 
 	/* Steps 7 and 8 were done in xhci_alloc_virt_device() */
 
-	xhci_flush_cache((uint32_t)ep0_ctx, sizeof(struct xhci_ep_ctx));
-	xhci_flush_cache((uint32_t)slot_ctx, sizeof(struct xhci_slot_ctx));
+	xhci_flush_cache((uintptr_t)ep0_ctx, sizeof(struct xhci_ep_ctx));
+	xhci_flush_cache((uintptr_t)slot_ctx, sizeof(struct xhci_slot_ctx));
 }