ryu: update board id definitions

There are changes in upcoming board revs that need to take
different action depending on board revision. Update the
enumeration to reflect upcoming reality.

BUG=chrome-os-partner:33578
BRANCH=None
TEST=Built and booted.

Change-Id: Ib51393e04d3255bbd44e5d77a2a7903109beebf4
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: de8d629678c0ae17af9f7145e04d95f43c927ee0
Original-Change-Id: I64cdeab806e7a665051f1d47bbf044413f7a1196
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/227681
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9407
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/google/rush_ryu/gpio.h

@@ -21,15 +21,27 @@
 #define __MAINBOARD_GOOGLE_RUSH_RYU_GPIO_H__
 
 #include <gpio.h>
+#include <base3.h>
 
 /* Board ID definitions. */
 enum {
-	BOARD_ID_PROTO_0	= 0,
+	BOARD_REV0 = BASE3(0, 0),
-	BOARD_ID_PROTO_1	= 1,
+	BOARD_REV1 = BASE3(0, 1),
-	BOARD_ID_EVT		= 2,
+	BOARD_REV2 = BASE3(0, Z),
-	BOARD_ID_DVT		= 3,
+	BOARD_REV3 = BASE3(1, 0),
-	BOARD_ID_PVT		= 4,
+	BOARD_REV4 = BASE3(1, 1),
-	BOARD_ID_MP		= 5,
+	BOARD_REV5 = BASE3(1, Z),
+	BOARD_REV6 = BASE3(Z, 0),
+	BOARD_REV7 = BASE3(Z, 1),
+	BOARD_REV8 = BASE3(Z, Z),
+
+	BOARD_ID_PROTO_0	= BOARD_REV0,
+	BOARD_ID_PROTO_1	= BOARD_REV1,
+	BOARD_ID_PROTO_3	= BOARD_REV2,
+	BOARD_ID_EVT		= BOARD_REV3,
+	BOARD_ID_DVT		= BOARD_REV4,
+	BOARD_ID_PVT		= BOARD_REV5,
+	BOARD_ID_MP		= BOARD_REV6,
 };
 
 enum {