reserve the top memory with protected RAM (pram)

This is useful for kernel pstore/ramoops so that u-boot relocation doesn't overwrite it

reserve the top memory with protected RAM (pram)
69dec0c6 · Oussama Ghorbel · 4f8ba5a6 · 69dec0c6
Commit 69dec0c6 authored 6 years ago by Oussama Ghorbel
--- a/include/configs/inteno_mt7621.h
+++ b/include/configs/inteno_mt7621.h
@@ -83,6 +83,7 @@
 #define CONFIG_AUTO_COMPLETE
 #define CONFIG_CMDLINE_EDITING
+#define CONFIG_PRAM			(0x80000 >> 10)	/* in kB - protect Linux pstore from being overwritten by u-boot */
 /*
 * Serial driver