Adds EHCI definitions to sequoia board configuration file.

Adds required definitions for EHCI support in sequoia configuration file.
But still keeps the OHCI as default driver.

Signed-off-by: Chris Zhang <chris@seamicro.com>

include/configs/sequoia.h

@@ -282,8 +282,20 @@
 
 /* USB */
 #ifdef CONFIG_440EPX
+
+#undef CONFIG_USB_EHCI	/* OHCI by default */
+
+#ifdef CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_PPC4XX
+#define CONFIG_SYS_PPC4XX_USB_ADDR	0xe0000300
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_EHCI_MMIO_BIG_ENDIAN
+#define CONFIG_EHCI_DESC_BIG_ENDIAN
+#ifdef CONFIG_4xx_DCACHE
+#define CONFIG_EHCI_DCACHE
+#endif
+#else /* CONFIG_USB_EHCI */
 #define CONFIG_USB_OHCI_NEW
-#define CONFIG_USB_STORAGE
 #define CONFIG_SYS_OHCI_BE_CONTROLLER
 
 #undef CONFIG_SYS_USB_OHCI_BOARD_INIT
@@ -291,7 +303,9 @@
 #define CONFIG_SYS_USB_OHCI_REGS_BASE	CONFIG_SYS_USB_HOST
 #define CONFIG_SYS_USB_OHCI_SLOT_NAME	"ppc440"
 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
+#endif
 
+#define CONFIG_USB_STORAGE
 /* Comment this out to enable USB 1.1 device */
 #define USB_2_0_DEVICE