buildroot to build toolchain on Linux

Attached is the zip containing the kernel's usr/initramfs_list. You should have the similar file AFTER the kernel build. If you can't boot kernel, attach the zip containing your file in the post.

You should check the .config of your kernel. Compare it with the file kernel.config in build.zip, the only diff should be atlera jtag console. It must have correct initramfs setup.