DE10 NANO LXDE KERNEL SOURCE CODE ISSUES

[TNGUY312]

I tried to build simple kernel module as instruction in the website below :

https://www.cyberciti.biz/tips/build-linux-kernel-module-against-installed-kernel-source-tree.html

But I got into the problem of missing the header folder "build" in /lib/modules/4.5.0-00185-g3bb556b .

Is there anyone here tried to create .ko modules for DE10 Nano LXDE?

I am so thankful if anyone comes with solution for this issue.

John.

[AnilErinch_A_Intel]

Hi John,

can you try with the linux LXDE version given at the terasic site and try to create kernel modules and let us know the results.

https://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&No=1081&PartNo=4

If you are looking for a custom bsp , please follow the steps below

https://github.com/intel/meta-de10-nano/blob/master/README.md

In either case let us know the results of the .ko module creation.

Thanks and Regards

Anil

[TNGUY312]

Hi Anil,

Your answer brought me confusing.

First thing : I already wrote LXDE image from Terasic website and got the errors when I tried to build .ko module.

Second thing: the link you sent to me mention about Angstrom Distro, and look like it asks me to rebuild the distro. Have you tried this method before to get build folder?

[AnilErinch_A_Intel]

Hi

There is end to end example for building a Linux driver for the DE10 nano SoC board available.

The section 12 in the below link describes about the custom driver with code in details.

https://rocketboards.org/foswiki/Documentation/EmbeddedLinuxBeginnerSGuide

Thanks and Regards

Anil

[TNGUY312]

I have spent my time to do research and follow two websites :

https://www.raspberrypi.org/documentation/linux/kernel/building.md 

https://github.com/umiddelb/armhf/wiki/How-To-compile-a-custom-Linux-kernel-for-your-ARM-device

and then I tried follow commands to compile and update the current kernel:

//Download the kernel as you suggested

$git clone https://github.com/terasic/linux-socfpga.git

$git checkout 3bb556b -b console

// Export to PATH environment

$export ARCH=arm

$export CROSS_COMPILE=arm-linux-gnueabihf-

//Clean the configuration and create .config file

$ make mrproper        

$ make socfpga_defconfig

$ make menuconfig   // I didn't change any default setting in this step

// Create zImage, modules and dtbs

$ make -j14 zImage modules dtbs

// Mount SD card

$ mkdir mnt

$ mkdir mnt/fat32

$ mkdir mnt/ext4

$ sudo mount /dev/sdc1 mnt/fat32

$ sudo mount /dev/sdc2 mnt/ext4

// Install the modules:

$sudo env PATH=$PATH make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=mnt/ext4 modules_install

// Copy the kernel and Device Tree blobs onto the SD card

$ sudo cp arch/arm/boot/zImage mnt/fat32/

$ sudo cp arch/arm/boot/dts/*.dtb mnt/fat32/

//Unmount SD card

$ sudo umount mnt/fat32

$ sudo umount mnt/ext4

And finally, I put the SD card back to DE10 Nano Board. But the board cannot boot into Linux OS. Nothing output on the HDMI Screen. 

I don't know what happens with Kernel or I already did somethings wrong in steps above.

[AnilErinch_A_Intel]

Hi

Please follow the link which was mentioned previously ,

https://rocketboards.org/foswiki/Documentation/EmbeddedLinuxBeginnerSGuide

The Rocket boards link. The section 8 mentions about compiling the Linux kernel.

If you can follow from section 1 to 12 and let us know if the still the issue exist .There are some differences in steps you have followed , like in the Rocketboards link you have to select some configuration while building the kernel, which is not mentioned in the links which you have referred to.

Also as a side note the below link also gives a pretty much detailed approach on writing device drivers.

https://rocketboards.org/foswiki/pub/Documentation/WS3DevelopingDriversForAlteraSoCLinux/WS3_Developing_Drivers_for_Altera_SoC.pdf

Thanks and Regards

Anil