[ADS5121] Support for the ADS5121 board

The following MPC5121e subsystems are supported:

- low-level CPU init
- NOR Boot Flash (common CFI driver)
- DDR SDRAM
- FEC
- I2C
- Watchdog

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Signed-off-by: Jan Wrobel <wrr@semihalf.com>
diff --git a/include/asm-ppc/e300.h b/include/asm-ppc/e300.h
index d1bb159..de82399 100644
--- a/include/asm-ppc/e300.h
+++ b/include/asm-ppc/e300.h
@@ -9,6 +9,7 @@
 #define PVR_E300C1	0x80830000
 #define PVR_E300C2	0x80840000
 #define PVR_E300C3	0x80850000
+#define PVR_E300C4	0x80860000
 
 /*
  * Hardware Implementation-Dependent Register 0 (HID0)