4.19.5 kernel based Debian snapshot image release for HiKey960

Mani · August 28, 2019, 2:55pm

@sreenad The repository you pointed out is the correct one but I haven’t tested 4.9 branch. hikey960_upstream_rebase branch is known to be working.

sreenad · August 28, 2019, 3:30pm

Thanks @Mani for your quick reply.

Kernel version in hikey960_upstream_rebase is shown as 4.14.
Is there a repo or branch with kernel 4.9 (non android) available for hikey960 which is still maintained.?

Regards,
Sreenad.

marcodip · August 28, 2019, 4:15pm

@sreenad, thanks now it works!

You may use:
$ sed -i 's/=m/=y/g' .config

Mani · August 28, 2019, 4:17pm

@sreenad AFAIK, there is no 4.9 branch which is still maintained. But you can try using the one you pointed out and share the results with us

sreenad · August 29, 2019, 12:31pm

@marcodip, Thanks, I did similar thing in Vim editor. :%s/=m/=y/g

But usually editing .config directly is not encouraged.
So just wanted to know whether any make target is available for it.
Some thing like make inbuilt_modules_config which can give a proper .config.

marcodip · August 29, 2019, 1:35pm

@Mani, kernel 5.2 works fine without devicetree.

If I add devicetree /boot/hi3660-hikey960.dtb, it cannot start.

I installed the kernel with dpkg.

Mani · August 30, 2019, 8:10am

That’s wierd. But it usually means, the dtb is not good.

marcodip · September 3, 2019, 10:06am

Hi @sreenad,

is there any specific reason to build all the features into the kernel, not as module?

Is it possible to use modules too? As I would like to unload/load a specific module at run-time.

Thanks,
Marco

sreenad · September 4, 2019, 7:23am

Hi @marcodip,

You can use modules. I prefer ‘inbuilt’ to avoid

missing drivers.
Vermagic mismatches
Additional task of installing modules.

Regards,
Sreenad.

marcodip · September 4, 2019, 8:29am

Hi @sreenad,

got it, thanks! Just another question: why you call this?

make olddefconfig

Regards,
Marco

Rajagopal · September 9, 2019, 9:08am

Hello @Mani,

Is there any Debian/Ubuntu release in which HDMI & WiFi works ?
Thanks in advance !

Mani · September 9, 2019, 9:51am

@Rajagopal No HDMI for now but WiFi should work with latest release.

http://snapshots.linaro.org/96boards/hikey/linaro/debian/latest/

Rajagopal · September 10, 2019, 10:55am

Hello Mani,

Appreciate the timely reply.

No HDMI for now but WiFi should work with latest release.
Wondering why in Android we can get HDMI o/p but NOT in Linux.
Or, is it right in Android also HDMI doesn’t work & only MIPI-DSI works ?

Thanks.

Mani · September 11, 2019, 1:43pm

@Rajagopal The debian image is based on the latest LTS kernel and it doesn’t contain many out of tree drivers (of course there are usb patches but they are taken from mailing list). If you want to use HDMI but doesn’t worry about kernel version, then you can try below kernel:

This kernel has almost most of the features supported by Hikey960. And you can update this kernel on the board using below guide:

github.com

96boards/documentation/blob/master/consumer/hikey/hikey620/build/linux-kernel.md#build-the-linux-kernel

---
title: Build & Update Linux kernel on HiKey
permalink: /documentation/consumer/hikey/hikey620/build/linux-kernel.md.html
redirect_from:  /documentation/consumer/hikey/build/linux-kernel.md.html
---

# Build & Update Linux kernel on HiKey

This page provides the instructions for building and deploying linux
kernel on HiKey from x86 host machine.

## Prerequisites:
- A host machine with relevant OS to install cross compiler and packages (Preferrably Ubuntu/Debian)
- A HiKey board running latest Debian release from Linaro


## Download GNU cross-toolchain binaries

You need to download the correct GCC toolchain on your host depending the
architecture. Usually host is a standard Intel x86-64 computer, target is

This file has been truncated. show original

You can also refer previous conversations in this thread for more info.

Thanks,
Mani

Rajagopal · October 4, 2019, 9:29am

@Mani Thank you for the links. When I tried to boot from the newly built upstream-rebase kernel, it complains saying “could not open builtin file /lib/modules/4.14.0-rc7-hikey-linaro-00001-ge2e79b4/modules.builtin.bin”.

I enable loadable module support in kernel config and built bindeb-pkg, modules & modules_install with custom INSTALL_MOD_PATH.

Still, I don’t see any .ko inside the entire linux directory !!!

How/where to get .ko for above kernel or how to get around the above error ?

Thanks,
Rajagopal

Rajagopal · October 6, 2019, 6:54pm

Hello @Mani,

For the above issue, tried the solution by @sumit.garg in [1] and was able to boot successfully but, no HDMI ouput yet !

Our monitor is a full-HD 32" Samsung monitor and tried passing video=HDMI-A-1:1920x1080@60 by appending to the “linux …” line in grub entry.

Does upstream-rebase support HDMI or de we have to run any additional commands/script to get HDMI output ?

Thanks,
Rajagopal

[1] Does latest rpb desktop image (Debian) supports hdmi on hikey960? - #43 by sumit.garg

sumit.garg · October 7, 2019, 5:42am

Did you update device-tree as well via grub menu as stated here?

lihuadong · October 22, 2019, 5:59am

How can I extract rootfs-linaro-stretch-developer-hikey-20191020-39.img

lihuadong · October 22, 2019, 6:01am

How can I make rootfs-linaro-stretch-developer-hikey-20191020-39.img

Mani · October 22, 2019, 7:58am

@lihuadong You can use simg2img utility to extract the raw rootfs image as below:

$ simg2img rootfs-linaro-stretch-developer-hikey-20191020-39.img rootfs.raw

Then the raw image(ext4 file system) can be mounted as below:

$ mkdir mnt
$ sudo mount rootfs.raw mnt/