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CoolPi 4B is a rk3588s based SBC[0]. Specification: - Rockchip RK3588S - LPDDR4 2/4/8/16 GB - TF scard slot - eMMC 8/32/64/128 GB module - Gigabit ethernet drived by PCIE with RTL8111HS - HDMI Type D out - Mini DP out - USB 2.0 Host x 2 - USB 3.0 OTG x 1 - USB 3.0 Host x 1 - WIFI/BT module AIC8800 - 40 pin header [0] https://www.cool-pi.com/product/cp4b/ Signed-off-by: Andy Yan <andyshrk@163.com> [Julien: - add missing BR2_GLOBAL_PATCH_DIR and hash files - add missing BR2_TARGET_UBOOT_NEEDS_GNUTLS ] Signed-off-by: Julien Olivain <ju.o@free.fr>
Cool Pi 4B ============== https://www.cool-pi.com/product/cp4b/ Build: ====== $ make coolpi_4b_defconfig $ make Files created in output directory ================================= output/images . output/images/ ├── boot.vfat ├── extlinux │ └── extlinux.conf ├── Image ├── Image.gz ├── rk3588_bl31_v1.40.elf ├── rk3588_ddr_lp4_2112MHz_lp5_2736MHz_v1.12.bin ├── rk3588s-coolpi-4b.dtb ├── rootfs.ext2 ├── rootfs.ext4 -> rootfs.ext2 ├── rootfs.tar ├── sdcard.img ├── u-boot.bin └── u-boot-rockchip.bin Creating bootable SD card: ========================== Simply invoke (as root) sudo dd if=output/images/sdcard.img of=/dev/sdX && sync Where X is your SD card device. Booting: ======== Serial console: --------------- The Cool Pi 4B has a 40-pin GPIO header. The Uart pins are as follows: pin 6: gnd pin 8: tx pin 10: rx Baudrate for this board is 1500000. Login: ------ Enter 'root' as login user, and the prompt is ready.