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authorPawel Dembicki <paweldembicki@gmail.com>2021-06-09 12:22:39 +0200
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>2021-06-12 11:01:43 +0200
commit15626130778c377cd4d4d3424127cd6e2a78253d (patch)
tree59b802f07ac0f60015c26b91dca3e809c58bb6b8 /target/linux/ramips
parent8078d953b8170260eb6fb1fe6b9ea0d5283acb70 (diff)
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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> (cherry picked from commit e1d8a14cd0a9f8844f9ebb8ca220780b0ce5d6db)
Diffstat (limited to 'target/linux/ramips')
-rw-r--r--target/linux/ramips/image/mt7620.mk1
1 files changed, 1 insertions, 0 deletions
diff --git a/target/linux/ramips/image/mt7620.mk b/target/linux/ramips/image/mt7620.mk
index fd7e42bf22..56941f2b9c 100644
--- a/target/linux/ramips/image/mt7620.mk
+++ b/target/linux/ramips/image/mt7620.mk
@@ -62,6 +62,7 @@ TARGET_DEVICES += alfa-network_tube-e4g
define Device/amit_jboot
DLINK_IMAGE_OFFSET := 0x10000
KERNEL := $(KERNEL_DTB)
+ KERNEL_SIZE := 2048k
IMAGES += factory.bin
IMAGE/sysupgrade.bin := mkdlinkfw | pad-rootfs | append-metadata
IMAGE/factory.bin := mkdlinkfw | pad-rootfs | mkdlinkfw-factory