support for z8102ax eMMC

[giorez]

I tryed to install the support for z8102ax firmware, unfortunatelly it doesn't boot. Any chance to add the z8102ax eMMC version? thanks

[Ysurac]

Do you have the exact model ? I don't know any z8102ax model with eMMCs support.

[giorez]

as far as I know is zbt z8102ax eMMC 8GB + ram 1GB. chip is mediatek MT7981. there is a working firmware at this link: https://forum.openwrt.org/t/adding-openwrt-support-for-zbt-z8102ax/171248/10. and I have also the vendor original installer, if you can do some reverse enginering.

In the factory firmware the router model is identified as "mt7981-emmc-rfb-z8102ax"

[giorez]

I only have NAND version in fact, I will what I can do to support eMMC.

any news for this unsupported model?

[Ysurac]

Would be easier with the DTS, but I will check what I can do based on mediatek default.

[Ysurac]

What is the size of the eMMC ?

[giorez]

eMMC is 8GB, do your need the original zbt firmware to extract some data?
thanks

[Ysurac]

No, I already have it thanks

[giorez]

@Ysurac any news for the emmc versione support?

I think the problem is that emmc version has different partition layout, plus different voltage settings to use the emmc instead NAND.

In case it helps, I got the flash layout from factory firmware:

MT7981> mmc part

Partition Map for MMC device 0-- Partition Type: EFI

Part	Start LBA	End LBA		Name		Attributes			Type GUID						Partition GUID
1	0x00000000	0x00000021	"gpt"		attrs:0x0000000000000000	type:0fc63daf-8483-4772-8e79-3d69d8477de4	(linux)	guid:d65a0088-db5c-11ee-a187-000c29358ede
2	0x00002000	0x000023ff	"u-boot-env"	attrs:0x0000000000000000	type:0fc63daf-8483-4772-8e79-3d69d8477de4	(linux)	guid:19a4763a-6b19-4a4b-a0c4-8cc34f4c2ab9
3	0x00002400	0x000033ff	"factory"	attrs:0x0000000000000000	type:0fc63daf-8483-4772-8e79-3d69d8477de4	(linux)	guid:8142c1b2-1697-41d9-b1bf-a88d76c7213f
4	0x00003400	0x000043ff	"fip"		attrs:0x0000000000000000	type:0fc63daf-8483-4772-8e79-3d69d8477de4	(linux)	guid:18de6587-4f17-4e08-a6c9-d9d3d424f4c5
5	0x00004400	0x000143ff	"kernel"	attrs:0x0000000000000000	type:0fc63daf-8483-4772-8e79-3d69d8477de4	(linux)	guid:971f7556-ef1a-44cd-8b28-0cf8100b9c7e
6	0x00014400	0x00e00000	"rootfs"	attrs:0x0000000000000000	type:0fc63daf-8483-4772-8e79-3d69d8477de4	(linux)	guid:309a3e76-270b-41b2-b5d5-ed8154e7542b

cat partitions
>major	minor 	# blocks	name
>    7	0	7285312	loop0
>179	0	7634944	mmcblk0
>179	1	17	mmcblk0p1
>179	2	512	mmcblk0p2
>179	3	2048	mmcblk0p3
>179	4	2048	mmcblk0p4
>179	5	32768	mmcblk0p5
>179	6	7298560	mmcblk0p6

[Ysurac]

Can you try this: https://snapshots.openmptcprouter.com/6.6/z8102ax-emmc/targets/mediatek/filogic/ ?
I don't think this will work but maybe this will give some useful log...

[giorez]

thanks a lot for the job!
I ve tested two binary files. Attached are the error boot logs. I also attach a succesful log with the vendor firmware in case you want to compare them.

00_Z8102AX-eMMC-MT7981-24.0810_155716(1)_ZBT_ORIG.bootlogSUCCESFUL.txt
openmptcprouter-v0.62-snapshot-6.6-r0+28431-92e020b50f-mediatek-filogic-z8102ax-emmc-initramfs-kernel.bootlogERROR.txt
openmptcprouter-v0.62-snapshot-6.6-r0+28431-92e020b50f-mediatek-filogic-z8102ax-emmc-squashfs-sysupgrade.bootlogERROR.txt