mpc83xx: Add support for the MPC8349E-mITX-GP

Add support for the MPC8349E-mITX-GP, a stripped-down version of the
MPC8349E-mITX.  Bonus features include support for low-boot (BMS bit in
HRCW is 0) for the ITX and a README for the ITX and the ITX-GP.

Signed-off-by: Timur Tabi <timur@freescale.com>
diff --git a/include/mpc83xx.h b/include/mpc83xx.h
index c1c6ad1..1b62f81 100644
--- a/include/mpc83xx.h
+++ b/include/mpc83xx.h
@@ -825,6 +825,47 @@
 #define OR_SDRAM_EAD			0x00000001
 #define OR_SDRAM_EAD_SHIFT		0
 
+#define OR_AM_32KB			0xFFFF8000
+#define OR_AM_64KB			0xFFFF0000
+#define OR_AM_128KB			0xFFFE0000
+#define OR_AM_256KB			0xFFFC0000
+#define OR_AM_512KB			0xFFF80000
+#define OR_AM_1MB			0xFFF00000
+#define OR_AM_2MB			0xFFE00000
+#define OR_AM_4MB			0xFFC00000
+#define OR_AM_8MB			0xFF800000
+#define OR_AM_16MB			0xFF000000
+#define OR_AM_32MB			0xFE000000
+#define OR_AM_64MB			0xFC000000
+#define OR_AM_128MB			0xF8000000
+#define OR_AM_256MB			0xF0000000
+#define OR_AM_512MB			0xE0000000
+#define OR_AM_1GB			0xC0000000
+#define OR_AM_2GB			0x80000000
+#define OR_AM_4GB			0x00000000
+
+#define LBLAWAR_EN			0x80000000
+#define LBLAWAR_4KB			0x0000000B
+#define LBLAWAR_8KB			0x0000000C
+#define LBLAWAR_16KB			0x0000000D
+#define LBLAWAR_32KB			0x0000000E
+#define LBLAWAR_64KB			0x0000000F
+#define LBLAWAR_128KB			0x00000010
+#define LBLAWAR_256KB			0x00000011
+#define LBLAWAR_512KB			0x00000012
+#define LBLAWAR_1MB			0x00000013
+#define LBLAWAR_2MB			0x00000014
+#define LBLAWAR_4MB			0x00000015
+#define LBLAWAR_8MB			0x00000016
+#define LBLAWAR_16MB			0x00000017
+#define LBLAWAR_32MB			0x00000018
+#define LBLAWAR_64MB			0x00000019
+#define LBLAWAR_128MB			0x0000001A
+#define LBLAWAR_256MB			0x0000001B
+#define LBLAWAR_512MB			0x0000001C
+#define LBLAWAR_1GB			0x0000001D
+#define LBLAWAR_2GB			0x0000001E
+
 /* LBCR - Local Bus Configuration Register
  */
 #define LBCR_LDIS			0x80000000