参考资料：
- https://blog.csdn.net/mao_hui_fei/article/details/107592985
- https://github.com/orgs/chenlongos/discussions
- https://github.com/MrRobertYuan/report/blob/main/docs/2023/20230601_How-to-run-ArceOS-on-raspi4.md
- https://datasheets.raspberrypi.com/bcm2711/bcm2711-peripherals.pdf
- https://elinux.org/RPi_BCM2711_GPIOs#GPIO0
- https://juejin.cn/post/6977611730784354334
- https://github.com/chenlongos/rust-raspberrypi-OS-tutorials/tree/master/06_uart_chainloader
- https://pinout.xyz