-/* resereved pram area at the end of memroy [hex] */
-#define CONFIG_KM_RESERVED_PRAM 0x0
-/* enable protected RAM */
-#define CONFIG_PRAM 0
+/* reserved pram area at the end of memory [hex]
+ * u-boot reserves some memory for the MP boot page */
+#define CONFIG_KM_RESERVED_PRAM 0x1000
+/* set the default PRAM value to at least PNVRAM + PHRAM when pram env variable
+ * is not valid yet, which is the case for when u-boot copies itself to RAM */
+#define CONFIG_PRAM ((CONFIG_KM_PNVRAM + CONFIG_KM_PHRAM)>>10)