arm: atmel: at91sam9n12ek: add usb host support

Add usb host support for at91sam9n12ek board.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/at91sam9n12ek.h b/include/configs/at91sam9n12ek.h
index 28a7925..cc79f8b 100644
--- a/include/configs/at91sam9n12ek.h
+++ b/include/configs/at91sam9n12ek.h
@@ -83,6 +83,7 @@
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_MMC
 #define CONFIG_CMD_FAT
+#define CONFIG_CMD_USB
 
 #define CONFIG_NR_DRAM_BANKS		1
 #define CONFIG_SYS_SDRAM_BASE		0x20000000
@@ -163,6 +164,17 @@
 #define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
 #define CONFIG_SYS_MEMTEST_END		0x26e00000
 
+/* USB host */
+#ifdef CONFIG_CMD_USB
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_SYS_USB_OHCI_CPU_INIT
+#define CONFIG_SYS_USB_OHCI_REGS_BASE	ATMEL_BASE_OHCI
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME	"at91sam9n12"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	1
+#define CONFIG_USB_STORAGE
+#endif
+
 #ifdef CONFIG_SYS_USE_SPIFLASH
 
 /* bootstrap + u-boot + env + linux in dataflash on CS0 */