Commit Graph

4 Commits

Author SHA1 Message Date
Michael Pratt
15c599c9df ath79: move pcie node to DTSI for qca955x Senao APs
pcie0 is the same for this generation of Senao APs
while eth0, eth1, and wmac can differ

the qca,no-eeprom property has no effect
for the ath10k drivers

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-04-08 09:20:59 +02:00
Michael Pratt
d5035f0d26 ath79: add Senao 'failsafe' sysupgrade procedure
Use a similar upgrade method for sysupgrade.bin, like factory.bin,
for Senao boards with the tar.gz OEM upgrade platform,
and 'failsafe' image which is loaded on checksum failure.

This is inspired by the OEM upgrade script /etc/fwupgrade.sh
and the existing platforms for dual-boot Senao boards.

Previously, if the real kernel was damaged or missing
the only way to recover was with UART serial console,
because the OKLI lzma-loader is programmed to halt.

uboot did not detect cases where kernel or rootfs is damaged
and boots OKLI instead of the failsafe image,
because the checksums stored in uboot environment
did not include the real kernel and rootfs space.

Now, the stored checksums include the space for both
the lzma-loader, kernel, and rootfs.
Therefore, these boards are now practically unbrickable.

Also, the factory.bin and sysupgrade.bin are now the same,
except for image metadata.
This allows for flashing OEM image directly from openwrt
as well as flashing openwrt image directly from OEM.

Make 'loader' partition writable so that it can be updated
during a sysupgrade.

tested with
ENS202EXT v1
EAP1200H
EAP350 v1
EAP600
ECB350 v1
ECB600
ENH202 v1

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-04-08 09:20:59 +02:00
Michael Pratt
4a0cc5d4ef ath79: remove 'fakeroot' for Senao devices
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>
2021-04-08 09:20:59 +02:00
Adrian Schmutzler
9b37db5caa ath79: create common DTSI for Senao qca955x APs
This creates a shared DTSI for qca955x Senao/Engenius APs with
concatenated firmware partition/okli loader:

 - EAP1200H
 - EnstationAC v1

To make this usable for future boards with 32 MB flash as well,
split the partitions node already.

Suggested-by: Michael Pratt <mcpratt@pm.me>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-02-24 14:08:30 +01:00