kmp204x: update the CONFIG_PRAM and CONFIG_KM_RESERVED_PRAM defines
This prevents u-boot from accessing into the reserved memory areas that
we have for /var and the logbooks.
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
diff --git a/include/configs/km/kmp204x-common.h b/include/configs/km/kmp204x-common.h
index f9bcef3..e4c5e7b 100644
--- a/include/configs/km/kmp204x-common.h
+++ b/include/configs/km/kmp204x-common.h
@@ -139,10 +139,12 @@
#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
+/* 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)
#define CONFIG_KM_CRAMFS_ADDR 0x2000000
#define CONFIG_KM_KERNEL_ADDR 0x1000000 /* max kernel size 15.5Mbytes */