1RADXA ROCK_PI_4 2================ 3https://rockpi.org/rockpi4 4 5ROCK Pi 4 is a Single Board Computer (SBC) from radxa. This guide is valid 6for the below models: 7- ROCK PI 4 Model A 8- ROCK PI 4 Model B 9- ROCK PI 4 Model C 10 11Build: 12====== 13 $ make rock_pi_4_defconfig 14 $ make 15 16Files created in output directory 17================================= 18 19output/images 20 21├── bl31.elf 22├── boot.vfat 23├── extlinux 24├── idbloader.img 25├── Image 26├── rk3399-rock-pi-4.dtb 27├── rootfs.ext2 28├── rootfs.ext4 -> rootfs.ext2 29├── rootfs.tar 30├── sdcard.img 31├── u-boot.bin 32└── u-boot.itb 33 34Creating bootable SD card: 35========================== 36 37Simply invoke (as root) 38 39sudo dd if=output/images/sdcard.img of=/dev/sdX && sync 40 41Where X is your SD card device. 42 43Booting: 44======== 45 46Serial console: 47--------------- 48RockPi4 has a 40-pin GPIO header. The pin layout is as follows: 49 50pin 6: gnd 51pin 8: tx 52pin 10: rx 53 54Baudrate for this board is 1500000. 55 56Login: 57------ 58Enter 'root' as login user, and the prompt is ready. 59 60Wiki link: 61https://wiki.amarulasolutions.com/bsp/rockchip/rk3399/rock-pi-4.html 62