openwrt/target/linux/ramips
Pawel Dembicki e1d8a14cd0 ramips: mt7620: add kernel size for Jboot devices
Since few months multiple users reported problems with various JBoot
devices. [0][1][2][3] All of them was bricked.

On my Lava LR-25G001 it freezes with current snapshot:

CDW57CAM_003 Jboot B695
Giga Switch AR8327 init
AR8327/AR8337 id   ==> 0x1302
JRecovery Version R1.2 2014/04/01 18:25
SPI FLASH: MX25l12805d 16M
.
.
(freeze)

The kernel size is >2048k.

I built current master with minimal config and it boots well:

CDW57CAM_003 Jboot B695
Giga Switch AR8327 init
AR8327/AR8337 id   ==> 0x1302
JRecovery Version R1.2 2014/04/01 18:25
SPI FLASH: MX25l12805d 16M
.
...........................
Starting kernel @80000000...
[    0.000000] Linux version 5.4.124

Kernel size is <2048k.

Jboot bootloader isn't open source, so it's impossible to find
solution in code. It looks, that some buffer for kernel have 2MB size.

To avoid bricked devices, this commit introduces 2048k limit kernel
size for all jboot routers.

[0] https://bugs.openwrt.org/index.php?do=details&task_id=3539
[1] https://eko.one.pl/forum/viewtopic.php?pid=254344
[2] https://eko.one.pl/forum/viewtopic.php?id=20930
[3] https://eko.one.pl/forum/viewtopic.php?pid=241376#p241376

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
[remove Fixes:]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-06-09 22:18:37 +02:00
..
base-files/etc ramips: remove model name from LED labels 2020-10-02 14:51:57 +02:00
dts ramips: fix Ethernet random MAC address for HILINK HLK-7628N 2021-06-09 22:18:37 +02:00
files/drivers ramips: mt7620: enable autonegotiation for all ports 2021-06-08 00:39:18 +02:00
image ramips: mt7620: add kernel size for Jboot devices 2021-06-09 22:18:37 +02:00
mt76x8 ramips: fix Ethernet random MAC address for HILINK HLK-7628N 2021-06-09 22:18:37 +02:00
mt7620 ramips: add support for the Wavlink WL-WN579X3 2021-06-06 18:56:45 +02:00
mt7621 ramips: Add support for SERCOMM NA502 2021-06-06 21:00:09 +02:00
patches-5.4 ramips: fix patch location 2021-06-08 00:39:28 +02:00
patches-5.10 generic: backport at803x fixes 2021-06-08 00:38:28 +02:00
rt288x treewide: switch the timer frequency to 100 Hz 2021-04-21 10:31:10 +01:00
rt305x treewide: switch the timer frequency to 100 Hz 2021-04-21 10:31:10 +01:00
rt3883 treewide: switch the timer frequency to 100 Hz 2021-04-21 10:31:10 +01:00
Makefile ramips: 5.10: port and refresh patches, ralink drv 2021-03-06 11:24:12 +01:00
modules.mk ramips: rename mtk-hsdma to hsdma-mt7621 2021-03-04 23:43:02 -10:00