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Filip Milivojevic
4858ed9dbd
This commit adds support for the Cudy P2 v1, a router with integrated 5G modem. The device is similar to Cudy WR3000E v1. SoC: MediaTek MT7981 WiSoC RAM: 256MB DDR3 Flash: 128MB SPI-NAND Wireless: Mediatek MT7981 2x2 DBDC 802.11ax (2.4 / 5) 5G Modem: Quectel RG500U-EB Ethernet: 1 WAN/LAN GbE, 1 LAN GbE MAC Addresses in OpenWrt: Interface lan: factory mac address Interface wan: factory mac address +1 Wifi 2.4GHz: factory mac address Wifi 5GHz: factory mac address with local bit set GPIO: - 1 Button: - Reset on GPIO 1 - 5 Software switches: - voippwr on GPIO 4 active low - voip_volte on GPIO 5 active low - 5gpwr on GPIO 6 active low - ant on GPIO 7 active high - usb5g on GPIO 8 active high - 8 LEDs: - Power: white on GPIO 2 active high - Internet: white on GPIO 14 active high - Internet: yellow on GPIO 15 active high - Internet: red on GPIO 26 active high - WLAN: white on GPIO 13 active high - Mobile: white on GPIO 30 active low - Mobile: yellow on GPIO 28 active high - Mobile: red on GPIO 27 active high Disassembly: - Remove two screws hidden behind the rubber stand. - Remove center solid plastic circle with a spudger and remove four screws. - Slide the interior with the board up. UART: - UART pads are accessible on the bottom of the board and labeled - Solder three pins: GND, RX, TX, do not connect 3V3 pin - Settings: 115200 8N1 3.3V 5G Modem: Quectel RG500U-EB is soldered on board and connected via USB 2.0 High Speed at 480Mb/s and PCIe v2 x1 at 5GT/s. The modem is usable with upstream drivers only via PPP mode using the ttyUSB2 AT port. The modem doesn't provide access via USB rndis_host or cdc_ncm - it should work by sending the following commands: - AT+QCFG="ethernet",0 - AT+QCFG="usbnet",5 (for NCM or 3 for RNDIS or 1 for ECM) - AT+QCFG="nat",0 - rebooting the modem via AT+CFUN=1,1 and rebooting the device. It appears that the firmware is locked down and doesn't want to change the configuration and enable usb networking. It is possible to use vendor sprd_pcie driver and use virtual PCIe network interface by sending the commands: - AT+QCFG="ethernet",1 - AT+QCFG="nat",0 - rebooting the modem via AT+CFUN=1,1 and rebooting the device. Connection via USB and PCIe network interface should work (but doesn't work via USB) using: - AT+QICSGP=1,3,"apnname","username","password",3 - AT+QNETDEVCTL=1,1,1 Migration to OpenWrt using TFTP: - Connect UART as described above - Press the reset button while powering on the device - U-Boot will now try to load a recovery.bin via TFTP, this must be ignored - After detecting a timeout, the U-Boot console is available via UART - Set up a TFTP server on IP 192.168.1.88 and connect it to one of the LAN ports - Provide the initramfs image via TFTP as cudyp2.bin - Run the following command in U-Boot: tftpboot 0x46000000 cudyp2.bin; bootm 0x46000000 - OpenWrt initramfs image is now booting and accessible via 192.168.1.1 - Flash the sysupgrade image Revert back to OEM: - Set up a TFTP server on IP 192.168.1.88 and connect it to one of the LAN ports - Provide the Cudy firmware via TFTP as recovery.bin - Press the reset button while powering on the device - Recovery process will start now - After recovery is done, the OEM firmware is available at 192.168.10.1 again Migration to OpenWrt via OEM firmware: - There should be a migration image available from Cudy as soon as there is official OpenWrt support - Download the migration image via OEM web interface - After flashing, OpenWrt is accessible via 192.168.1.1 - Flash the official OpenWrt image Signed-off-by: Filip Milivojevic <zekica@gmail.com> Link: https://github.com/openwrt/openwrt/pull/23721 Signed-off-by: Jonas Jelonek <jonas@jonasjelonek.de>