A4M072: Added support for the board.

This patch provides support for the A4M072 board with the following features:
 UART
 NOR flash
 FEC Ethernet
 External SRAM
 I2C EEPROM
 CompactFlash cards on IDE/ATA port
 USB Host
 PCI initialization

The 7-segment LED indicator is not yet supported.

Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
diff --git a/include/mpc5xxx.h b/include/mpc5xxx.h
index 2d343c7..859d696 100644
--- a/include/mpc5xxx.h
+++ b/include/mpc5xxx.h
@@ -160,11 +160,12 @@
 #define MPC5XXX_WU_GPIO_DATA_O  (MPC5XXX_WU_GPIO + 0x000c)
 #define MPC5XXX_WU_GPIO_DATA_I  (MPC5XXX_WU_GPIO + 0x0020)
 
-/* GPIO pins */
+/* GPIO pins, for Rev.B chip */
 #define GPIO_WKUP_7		0x80000000UL
 #define GPIO_PSC6_0		0x10000000UL
 #define GPIO_PSC3_9		0x04000000UL
 #define GPIO_PSC1_4		0x01000000UL
+#define GPIO_PSC2_4		0x02000000UL
 
 #define MPC5XXX_GPIO_SIMPLE_PSC6_3   0x20000000UL
 #define MPC5XXX_GPIO_SIMPLE_PSC6_2   0x10000000UL