ARM: ohci-pxa27x: enable OHCI over U2DC for pxa3xx

U2D Controller of pxa3xx is able to work in host mode.
Make pxa specific ohci implementation aware of it.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

drivers/usb/host/ohci-pxa27x.c

@@ -24,6 +24,7 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <mach/ohci.h>
+#include <mach/pxa3xx-u2d.h>
 
 /*
  * UHC: USB Host Controller (OHCI-like) register definitions
@@ -235,6 +236,9 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev)
 	if (retval < 0)
 		return retval;
 
+	if (cpu_is_pxa3xx())
+		pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self);
+
 	uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE;
 	__raw_writel(uhchr, ohci->mmio_base + UHCHR);
 	__raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE);
@@ -251,6 +255,9 @@ static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev)
 
 	inf = dev->platform_data;
 
+	if (cpu_is_pxa3xx())
+		pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self);
+
 	if (inf->exit)
 		inf->exit(dev);