Hello everyone, first time yocto user here, I'm trying to get a very minimal image to boot on a AM3352 based device that a local company made, however when it boots there is no output on the serial port.
These are the steps I've tried: - added meta-ti and dependent layers - removed these features from the minimal image "alsa ext2 api-documentation bluetooth ipv6 opengl pcmcia ppp ptest wayland wifi x11 vulkan" as I don't think are needed for our basic test - taken the dtb file from the manufacturer sd card, converted to dts using dtc, added to the kernel using a layer and changed KERNEL_DEVICETREE = "device-name-here.dtb" (name replaced) - I've cloned their SD card to make sure the partitions are the same (FAT16 first partition with boot flag + ext4 second partition) - bitbake build - replaced MLO/u-boot.img in the boot partition - extracted rootfs into the ext4 partition, copied zImage and the dtb files in the /boot folder I've also tried to use am335x-hs-evm as the machine (using also the UART variants of MLO and U-boot) but no luck. In case it's needed, these are the env variables from their working SD card u-boot https://gist.github.com/alex88/5e8d604ab15540b84353040a83bc0606 What should I try to at least be able to get u-boot to output something in the console? Thank you in advance
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