iMX28: Add USB HOST driver

This driver supports both EHCI ports on the i.MX28 CPU.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Remy Bohmer <linux@bohmer.net>
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 51b2494..09abb75 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -41,6 +41,7 @@
 COBJS-$(CONFIG_USB_EHCI_FSL) += ehci-fsl.o
 endif
 COBJS-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
+COBJS-$(CONFIG_USB_EHCI_MXS) += ehci-mxs.o
 COBJS-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o
 COBJS-$(CONFIG_USB_EHCI_IXP4XX) += ehci-ixp.o
 COBJS-$(CONFIG_USB_EHCI_KIRKWOOD) += ehci-kirkwood.o