Link for uart convertor https://evo.net.ua/ru/pi-uart-debugger/

Datasheet on rpi1 : https://datasheets.raspberrypi.com/rp1/rp1-peripherals.pdf

Link to hdmi cable : https://www.raspberrypi.com/products/standard-hdmi-a-male-to-mini-hdmi-c-male-cable/ Link for kernel port: https://github.com/raspberrypi/linux/tree/rpi-6.6.y

Link for rpi-firmware: https://github.com/raspberrypi/rpi-firmware/tree/stable

Issue with optee support for RPI5 https://github.com/OP-TEE/optee_os/issues/3205

TFA rpi5 support https://trustedfirmware-a.readthedocs.io/en/latest/plat/rpi5.html

ATF rpi5 support https://github.com/ARM-software/arm-trusted-firmware/tree/master/plat/rpi/rpi5

Yocto

meta-raspberry: https://git.yoctoproject.org/meta-raspberrypi

Rpi1 and u-boot related state:

RPI to start Cortex-M33 https://github.com/G33KatWork/RP1-Reverse-Engineering https://github.com/MichaelBell/rp1-hacking/

u-boot RPI4/5: https://hechao.li/2021/12/20/Boot-Raspberry-Pi-4-Using-uboot-and-Initramfs/ https://forums.raspberrypi.com/viewtopic.php?t=330177

Other

Include binary file with GNU ld linker script