Making *.ko in Linux-modules/DMA_PL330_LKM/

[robertofem]

Making *.ko in Linux-modules/DMA_PL330_LKM/

[robertofem]

To insert a driver in a kernel it has to be compiled with the same toolchain (kernel version) used to compile the kernel. Otherwise the tag of the kernel when you do "uname -r" and the tag inside the driver will missmatch and the OS wont allow the driver to be inserted.

That is why in order to use that driver you need to compile the OS, generate an SD card based in that OS, compile the driver using some tools generated during OS compilation and finally insert the driver in the OS. Some of the tools generated by the OS are a cross-compiler that is used to compile the driver and "ROOTDIR", which is like a copy of the kernel files in the board, and that are used by the compiler to find the different kernel functions used inside the driver (its like the libraries when you compile a C program that uses third party libraries).

This driver was specifically designed to move data between FPGA and CPU and this implied the allocation of contiguous physical memory and this cannot be done from user space. Please, tell me from where to where you want to move data and the size of each transfer and I may suggest you a better way to move data without the need of OS compilation.

Regarding Amgstrom, most of metalayers are missing from the internet, so trying to recompile Amgstrom 2016 like the giude explains will be impossible. We suffered this this year. If you want to have a Custom Linux for these types of boards Poky Linux is the best. We can help you building it throgh our comany (https://logicmelt.com/)