@@ -26,6 +26,26 @@ where it was loaded from, the configurations differ in where the filesystem
is looked for by default.
+** How to replace U-Boot with your own
+Due to the "secure" boot described above, The U-Boot binary isn't
+expected to live at the beginning of the NAND flash but rather at
+0x80800 (offset 2kB within /dev/mtd).
+To replace it with your own binary you should either use the serial
+flasher the vendor distributes (there is a version running on
+GNU/Linux too) or with the following commands from U-Boot.
+These commands read 256kB from the are that will be /dev/mtd2 and
+overwrite U-Boot at offset 2kB:
+ nand read 100000 80000 40000
+ bootp 100800 u-boot-nhl8815.bin
+ nand erase 80000 40000
+ nand write 100000 80000 40000
+** Further documentation
On www.st.com/nomadik and on www.stnwireless.com there are documents,
summary data and white papers on Nomadik. The full datasheet for
STn8815 is not currently available on line but under specific request