Odroid C1+ headless - mainline kernel [update]

Discussion about U-Boot and the kernel.

Odroid C1+ headless - mainline kernel [update]

Postby renegat » Sat Jan 02, 2021 12:51 am

In addition to this thread (which is unfortunately locked):
I found my odroid c1+ was not booting with latest kernel and the given modifications to u-boot boot.ini anymore today.
The blue LED stays solid blue and did not start to flash.

The "/boot/dtbs/meson8b_odroidc.dtb" referred to in default boot.ini does not even exist under /boot/dtbs/ after installation of mainline kernel anymore.

In order to boot the mainline kernel you have to follow the instructions in the original thread (see above) and than copy the "meson8b-odroidc1.dtb" from /boot/dtbs/ to /boot as described here because uboot could not read the .dtb file from /boot/dtbs/ again.

You than need to replace
Code: Select all
ext4load mmc 0:1 0x21800000 /boot/dtbs/meson8b_odroidc.dtb

with
Code: Select all
ext4load mmc 0:1 0x21800000 /boot/meson8b-odroidc1.dtb

in boot.ini

ADDENUM:
- HDMI output does not work (which is expected with mainline kernel)
- eMMC does not work (cannot boot from, root not recognized)
- USB does not work anymore, connected devices will not be recognized

In actual state Odroid C1(+) is a paperweight. :(
Last edited by renegat on Sat Jan 02, 2021 6:07 pm, edited 1 time in total.
Odroid U3+ / U3 / U2 / C1+ / XU4
RPi 1B / 1B+ / 2B / 3B / Zero WH
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Re: Odroid C1+ headless - mainline kernel [update]

Postby windozupdat3 » Sat Jan 02, 2021 9:20 am

Thanks for the tips @renegat!
Is it possible to merge the info into a single thread or updated the corresponding wiki page?

What is the status of the HDMI output?

[...] copy the "meson8b-odroidc1.dtb" from /boot/dtbs/

Would a simlink produce the same result?
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Re: Odroid C1+ headless - mainline kernel [update]

Postby renegat » Sat Feb 06, 2021 6:49 am

The USB issue is weird:

- no hotplug you always have to connect your usb devices before booting
- most storage devices do not work but:

If you find a device that works
mostly usb card readers or usb 2.0 storage sticks like
14cd:121f Super Top microSD CardReader SY-T18
8644:800b Intenso GmbG Micro Line (4GB)
e.g.
all devices that did not before like

11b0:6298 ATECH FLASH TECHNOLOGY Kingston SNA-DC/U
174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s bridge
174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge
e.g.
will suddenly work if the one that works is connected during boot too.
Odroid U3+ / U3 / U2 / C1+ / XU4
RPi 1B / 1B+ / 2B / 3B / Zero WH
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