T95z plus can not initialize PHY ethernet

[Richard-Chueng]

Hi,

1. No problem to boot the usb with latest firmware (openwrt_s912_k5.15.30_2022.03.20.2154.img.gz), but after install to emmc, it shows success, but can not initialize the ethernet after reboot.
2. I also try to reinstall the android firmware before install openwrt, but the problem is the same
   
   .

[ophub]

b099d1a
I have removed support for T95 devices, the current firmware is not suitable for T95 use

ophub/amlogic-s9xxx-armbian#22 (comment)

You can refer to this method and add /boot/extlinux/extlinux.conf to replace uEnv.txt

Replace root=LABEL=ROOTFS with UUID=XXX, the content can be viewed in /boot/uEnv.txt

label Armbian
    kernel /zImage
    initrd /uInitrd
    fdt /dtb/amlogic/meson-gxm-t95z-plus.dtb
    append root=LABEL=ROOTFS rootfstype=btrfs rootflags=compress=zstd:6 console=ttyAML0,115200n8 console=tty0 no_console_suspend consoleblank=0 fsck.fix=yes fsck.repair=yes net.ifnames=0 loglevel=1 voutmode=hdmi disablehpd=false overscan=100 sdrmode=auto

[ophub]

https://github.com/ophub/amlogic-s9xxx-armbian/releases

Find the firmware named Armbian_22.05.0_Aml_s912-t95z_focal_5.15.30_xxx.img.gz here, and see if Armbian can be used normally on T95. If so, OpenWrt can be modified with the above method.

[Richard-Chueng]

Hi,

I did try to install armbian firmware named Armbian_22.05.0_Aml_s912-t95z_focal_5.15.30_xxx.img.gz as you suggest above,

1. when booting with USB, it fails to raise the network interfaces;
   

[Richard-Chueng]

2. after some minutes, it can boot from usb, and also can not boot from emmc after successful installation.
   

[ophub]

You plug in the network cable, without the network cable, of course there is no network

[ophub]

Thank you for your feedback. It seems that this dtb is not applicable. I deleted T95 from the supported list and added it later when I have his compiled source code.

[Richard-Chueng]

Thanks for your reply, but i have writed image openwrt_s912-t95z_k5.15.25_2022.02.26.2120.img.gz to usb disk, and boot from usb without any problem for almost a month.
PS: only booting from usb will work, always fails booting from EMMC.

[ophub]

The meson-gxm-t95z-plus.dtb of this firmware has no compiled source code. It is a fixed file shared by netizens. It may not be used in different versions of the kernel such as 5.4/5.10. After writing emmc, the network card cannot be driven. I removed it first and added it later when I found the dts.