ath79/tiny kernel config has
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
from commit
05d35403b2
Because of this, these changes are required for 2 reasons:
1.
Senao devices in ath79/tiny
with a 'failsafe' partition and the tar.gz sysupgrade platform
and a flash chip that supports 4k sectors
will fail to reboot to openwrt after a sysupgrade.
the stored checksum is made with the 64k blocksize length
of the image to be flashed,
and the actual checksum changes after flashing due to JFFS2 space
being formatted within the length of the rootfs from the image
example:
0x440000 length of kernel + rootfs (from sysupgrade.bin)
0x439000 offset of rootfs_data (from kernel log)
2.
for boards with flash chips that support 4k sectors:
saving configuration over sysupgrade is not possible
because sysupgrade.tgz is appended at a 64k boundary
and the mtd parser starts JFFS2 at a 4k boundary.
for boards with flash chips that do not support 4k sectors:
partitioning with 4k boundaries causes a boot loop
from the mtd parser not finding kernel and rootfs.
Also:
Some of the Senao boards that belong in ath79/tiny,
for example ENH202,
have a flash chip that does not support 4k sectors
(no SECT_4K symbol in upstream source).
Because of this, partitioning must be different for these devices
depending on the flash chip model detected by the kernel.
Therefore:
this creates 2 DTSI files
to replace the single one with 64k partitioning
for 4k and 64k partitioning respectively.
Signed-off-by: Michael Pratt <mcpratt@pm.me>
By using the same custom kernel header magic
in both OKLI lzma-loader, DTS, and makefile
this hack is not necessary anymore
However, "rootfs" size and checksum
must now be supplied by the factory.bin image
through a script that is accepted by the OEM upgrade script.
This is because Senao OEM scripts assume a squashfs header exists
at the offset for the original "rootfs" partition
which is actually the kernel + rootfs in this implementation,
and takes size value from the header that would be there with hexdump,
but this offset is now the uImage header instead.
This frees up 1 eraseblock
previously used by the "fakeroot" partition
for bypassing the OEM image verification.
Also, these Senao devices with a 'failsafe' partition
and the tar-gz factory.bin platform would otherwise require
flashing the new tar-gz sysupgrade.bin afterward.
So this also prevents having to flash both images
when starting from OEM or 'failsafe'
the OEM upgrade script verifies the header magic numbers,
but only the first two bytes.
Example:
[ "${magic_word_kernel}" = "2705" ] &&
[ "${magic_word_rootfs}" = "7371" -o "${magic_word_rootfs}" = "6873" ] &&
errcode="0"
therefore picked the magic number
0x73714f4b
which is
'sqOK'
Signed-off-by: Michael Pratt <mcpratt@pm.me>
These recipes and definitions can apply
to devices from other vendors
with PCB boards or SDK produced by Senao
not only the brand Engenius
possible examples:
Extreme Networks, WatchGuard, OpenMesh,
Fortinet, ALLNET, OCEDO, Plasma Cloud, devolo, etc.
so rename all of these items
and move DEVICE_VENDOR from common to generic/tiny.mk
Signed-off-by: Michael Pratt <mcpratt@pm.me>
This moves some of the Engenius boards from generic to tiny:
- EAP350 v1
- ECB350 v1
- ENH202 v1
For these, factory.bin builds are already failing on master
branch because of the unique situation for these boards:
- 8 MB flash
- an extra "failsafe" image for recovery
- TFTP does not work (barely possible with 600 MTU)
- bootloader loads image from a longer flash offset
- 1 eraseblock each needed for OKLI kernel loader and fake rootfs
- using mtd-concat to make use of remaining space...
The manual alternative would be removing the failsafe partition.
However this comes with the risk of extremely difficult recovery
if a flash ever fails because TFTP on the bootloader is bugged.
Signed-off-by: Michael Pratt <mcpratt@pm.me>
[improve commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The Buffalo devices in ath79 share their image generation code,
so let's create a shared Device definition for them.
Since most of them use BUFFALO_HWVER := 3, this is moved as
default to the shared definition as well.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Now that check-size uses IMAGE_SIZE by default, we can skip the argument from
image recipes to reduce redundancy.
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
[do not touch ar71xx]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit sync target ath79 from openwrt master, and revert some commit which will causes wireless to not work.
Use ath10k-ct-smallbuffers by default, so that small memory devices can normal work.
