ppc/85xx: Enable usb ehci support for p2020ds board

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h
index 46af7b9..2a2b9ac 100644
--- a/include/configs/P2020DS.h
+++ b/include/configs/P2020DS.h
@@ -618,6 +618,15 @@
 #define CONFIG_CMD_EXT2
 #endif
 
+/*
+ * USB
+ */
+#define CONFIG_CMD_USB
+#define CONFIG_USB_STORAGE
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_FSL
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+
 #undef CONFIG_WATCHDOG			/* watchdog disabled */
 
 /*