openwrt/target/linux/ramips
Piotr Dymacz 7a62e909b2 ramips: support dual image feature on ALFA Network boards
New U-Boot version for MediaTek MT76x8/MT762x based ALFA Network boards
includes support for a 'dual image' feature. Users can enable it using
U-Boot environment variable 'dual_image' ('1' -> enabled).

When 'dual image' feature is enabled, U-Boot will modify DTB and divide
the original 'firmware' flash area into two, equal in size and aligned
to 64 KB partitions: 'firmware' and 'backup'. U-Boot will also adjust
size of 'firmware' area to match installed flash chip size.

U-Boot will load kernel from active partition which is marked with env
variable 'bootactive' ('1' -> first partition, '2' -> second partition)
and rename both partitions accordingly ('firmware' <-> 'backup').

There are 3 additional env variables used to control 'dual image' mode:
- bootlimit   - maximum number of unsuccessful boot tries (default: '3')
- bootcount   - current number of boot tries
- bootchanged - flag which informs that active partition was changed; if
                it is set and 'bootcount' reaches 'bootlimit' value,
                U-Boot will start web-based recovery which then updates
                both partitions with provided image

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
(backported from commit bc173ddd83)
2019-11-24 21:44:29 +01:00
..
base-files ramips: support dual image feature on ALFA Network boards 2019-11-24 21:44:29 +01:00
dts ramips: assign correct key-code to wps buttons 2019-11-17 02:48:39 +01:00
files-4.14/drivers ramips: ethernet: remove unused SIOCETHTOOL ioctl handling 2019-06-05 10:12:30 +02:00
image ramips: use upstream RAW_APPENDED_DTB instead of our OWRTDTB 2019-11-24 17:49:35 +01:00
mt76x8 ramips: refresh all subtargets kernel configs 2019-11-24 17:49:35 +01:00
mt7620 ramips: refresh all subtargets kernel configs 2019-11-24 17:49:35 +01:00
mt7621 ramips: refresh all subtargets kernel configs 2019-11-24 17:49:35 +01:00
patches-4.14 ramips: use upstream RAW_APPENDED_DTB instead of our OWRTDTB 2019-11-24 17:49:35 +01:00
rt288x ramips: refresh all subtargets kernel configs 2019-11-24 17:49:35 +01:00
rt305x ramips: refresh all subtargets kernel configs 2019-11-24 17:49:35 +01:00
rt3883 ramips: refresh all subtargets kernel configs 2019-11-24 17:49:35 +01:00
Makefile ramips: switch to linux 4.14 2018-04-06 18:07:43 +02:00
modules.mk kernel: Fix kmod-regmap split 2019-01-27 11:07:14 +01:00