-/* pseudo-non volatile RAM [hex] */
-#define CONFIG_KM_PNVRAM 0x80000
-/* physical RAM MTD size [hex] */
-#define CONFIG_KM_PHRAM 0x100000
-/* resereved pram area at the end of memroy [hex] */
-#define CONFIG_KM_RESERVED_PRAM 0x0
-/* enable protected RAM */
-#define CONFIG_PRAM 0
-
-#define CONFIG_KM_CRAMFS_ADDR 0x800000
-#define CONFIG_KM_KERNEL_ADDR 0x400000 /* 3968Kbytes */
-#define CONFIG_KM_FDT_ADDR 0x7E0000 /* 128Kbytes */
+/* 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)