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AM62A7-Q1: help me in flashing new kernel image

Farrukh
Prodigy 40 points

Part Number: AM62A7-Q1
Other Parts Discussed in Thread: SK-AM62A-LP

I've downloaded and flashed 

tisdk-edgeai-image-am62a-evm-11.01.07.05.rootfs.wic.xz  to sd card,  SK-AM62A-LP dev board booting fine, next I installed ti-processor-sdk-linux-edgeai-am62a-evm-11.01.07.05-Linux-x86-Install.bin , followed this guide to build new kernel image, 

export CROSS_COMPILE_64="${SDK_INSTALL_DIR}/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/aarch64-oe-linux/aarch64-oe-linux-"
export SYSROOT_64="${SDK_INSTALL_DIR}/linux-devkit/sysroots/aarch64-oe-linux"
export CC_64="${CROSS_COMPILE_64}gcc --sysroot=${SYSROOT_64}"
export CROSS_COMPILE_32="${SDK_INSTALL_DIR}/k3r5-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-oe-eabi/arm-oe-eabi-"
make -j4 ARCH=arm64 CROSS_COMPILE="$CROSS_COMPILE_64" Image


It builds the new kernel image, I replaced previous Image on SD card with this newly generated one.
but now i see this error on boot up
rmmod: ERROR: Module wave5 is not currently loaded 
modprobe: FATAL: Module wave5 not found in directory /lib/modules/6.12.35-g72f48d59b8f0-dirty terminate 
called after throwing an instance of 'std::runtime_error' what(): failed to find DRM cards

what I'm missing here?