The purpose of this code seems to be to avoid issues caused
by partially overwriting an existing UBI partition, where some
of the erase counters would be reset but not the unmodified
ones. This problem has been solved in a more generic way by
the UBI EOF marker. This ensures that any old PEBs after the
marker are properly initialized. It is therefore unnecessary
to erase the whole partition before flashing a new OpenWrt
factory image.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Consistently handle boot-count reset and upgrade across
ipq40xx, ipq806x, kirkwood, mvebu
Dual-firmware devices often utilize a specific MTD partition
to record the number of times the boot loader has initiated boot.
Most of these devices are NAND, typically with a 2k erase size.
When this code was ported to the ipq40xx platform, the device in hand
used NOR for this partition, with a 16-byte "record" size. As the
implementation of `mtd resetbc` is by-platform, the hard-coded nature
of this change prevented proper operation of a NAND-based device.
* Unified the "NOR" variant with the rest of the Linksys variants
* Added logging to indicate success and failure
* Provided a meaningful return value for scripting
* "Protected" the use of `mtd resetbc` in start-up scripts so that
failure does not end the boot sequence
* Moved Linksys-specific actions into common `/etc/init.d/bootcount`
For upgrade, these devices need to determine which partition to flash,
as well as set certain U-Boot envirnment variables to change the next
boot to the newly flashed version.
* Moved upgrade-related environment changes out of bootcount
* Combined multiple flashes of environment into single one
* Current-partition detection now handles absence of `boot_part`
Runtime-tested: Linksys EA8300
Signed-off-by: Jeff Kletsky <git-commits@allycomm.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[checkpatch.pl fixes, traded split strings for 80+ chars per line]
RAMFS_COPY_* are moved to platform.sh toplevel. The nand_do_upgrade call is
moved to platform_do_upgrade.
Fixes: 30f61a34b4 "base-files: always use staged sysupgrade"
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This automatically writes to the alternate firmware partition
(on Linksys's dual firmware layout) using code borrowed from
the WRT1900AC port.
Signed-off-by: Claudio Leite <leitec@staticky.com>
SVN-Revision: 47434
Bjørn Mork