Banana club: Banana Pi Router design BPI-R4

Banana Pi Router design BPI-R4 Lite (MT7987A) Banana Pi BPI-R4 Lite smart router board design with MediaTek MT7987A Quad-core Arm Cortex-A53,it support 2GB DDR4 and 8G eMMC Flash on board. 1 2.5G SFP and 1 2.5G RJ45 WAN , support 4 x 1G RJ45 LAN port. support M.2 for 4G/5G module.1x miniPCIe slot with PCIe3.0 2lane interface for Wi-Fi 7 NIC. This post is a supplement to [BPI-R4] How to use frank-w u-boot to boot from Nvme on BPI-R4. Because NAND u-boot does not support uEnv.txt. If we want to modify u-boot menu, we need to recompile u-boot and flash it to NAND Flash. Environmental Information: Hardware: BananaPi R4 8GB RAM eMMC: OpenWRT u-boot & OpenWRT SD: frank-w u-boot & frank-w Debian NAND(Target): frank-w u-boot Nvme: Nvme SSD 128GB on M.2 KeyM slot Compile Host: x86 Debian 12 Partition: SD Partition: /dev/sda5 vfat... The case should be redesigned to reduce the temperatures of both the Banana Pi R3 Mini and a potential 5G module. The M.2 Key B slot has some issues—for example, certain modules stop being detected (such as the Fibocom FM160). Banana Pi BPI-CM6 is a industrial grade RISC-V Core board, it design with SpacemiT K1 8 core RISC-V chip, CPU integrates 2.0 TOPs AI computing power. 8/16G DDR and 8/16/32/128G eMMC.,Designed with Board to Board connectors for enhanced stability same as Raspberry Pi CM4.