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kraj / meta-altera

Old Altera BSP layer for OpenEmbedded/Yocto Project ( please use https://github.com/altera-opensource/meta-intel-fpga-refdes)
MIT License
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Building Kernel/RootFS for CycloneV with V4L2 Support #194

Closed jackfrye closed 4 years ago

jackfrye commented 4 years ago

Khem, What are the configurations to build Video 4 Linux 2 drivers into the kernel and rootfs targeting CycloneV SoC? I have been trying to use https://github.com/altera-opensource/linux-socfpga/blob/socfpga-5.5/arch/arm/configs/socfpga_defconfig to configure and build my kernel. I am cloning and building the kernel outside of the BB layers and Yocto framework.I have been trying to change that configuration definition both manually and with menuconfig, but I cannot seem to get it right. Does the build system automate setting up the kernel configs, and if so can it automate adding in the configs I need to build the V4L2 kernel modules on top of those defined configs? I want the configs to be as close to that config listed above as possible, because I have gotten networking and HPS-FPGA Linux applications working with builds based on that config definition.

kraj commented 4 years ago

@jackfrye you have to edit the config using make menuconfig once changes are made you can save the modified defconfig with make savedefconfig then move newly generated defconfig file to arch/arm/configs/socfpga_defconfig and you can commit it. if you then use yocto to build the system then apply this delta via a patch

jackfrye commented 4 years ago

Thanks @kraj . I am going to close the issue.