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Michael Lotz
0c5547e865
Netgear RBx850 are tri band, 2.4GHz and 2x 5GHz, 12 stream 802.11ax mesh devices from the Orbi series. The RBR850 is a router with a 2.5GbE WAN and 4 1GbE LAN ports. The RBS850 is a satellite without WAN port and half the flash. The hardware is otherwise identical. They were sold in kits as RBK852-RBK855, with one router and 1-4 satellites. The RBx850 are substantially similar to the RBx750 so this commit factors out a common DTS, flash script and build definition. Hardware: * SoC: Qualcomm IPQ8074 * RAM: 1GiB 2x Samsung 4A4G165WE-BCRC * Flash: 512MiB Winbond W29N04GZ or 256MiB Winbond W29N02GZ * WLAN 2.4GHz: QCN5024 4x4:4 b/g/n/ax * WLAN 5GHz Low Band: QCN5054 4x4:4 a/n/ac/ax 5180-5320MHz * WLAN 5GHz High Band: QCN5054 4x4:4 a/n/ac/ax 5500-5700MHz * Ethernet: 4x 1GbE LAN, 1x 2.5GbE WAN on RBR850 * Serial Config: 3.3V TTL 115200-8-N-1, internal populated header * Serial Layout: Bottom <- RX, TX, GND, 3.3V (don't connect) -> Top * LEDs: green/red power, white/red/green/blue status * Buttons: 1x Reset, 1x WPS MAC addresses: LAN1: Label LAN2: Label + 1 LAN3: Label + 2 LAN4: Label + 3 WAN: Label + 1 2.4GHz: Label + 2 (RBR) or 1 (RBS) 5GHz-Low: Label + 3 (RBR) or 2 (RBS) 5GHz-High: Label + 4 (RBR) or 3 (RBS) Flashing Notes: The stock firmware images are signed. Both the bootloader and the stock web interface check the signature and will fail to boot/flash. The bootloader automatically does NMRP when a gigabit LAN connection is present. The stock and factory images contain a U-Boot script that is executed when flashing using NMRP. This is used to alter and persist the U-Boot env with a boot command that works with unsigned firmware. Install OpenWrt: * Get the nmrpflash utility [0] and OpenWrt factory image * Find network interface to use: nmrpflash -L * Start nmrpflash: nmrpflash -i interface -f openwrt-...-factory.img * Connect one of the device LAN ports to the same network using gigabit * Plug the device in and wait for the bootloader to flash * Unplug and replug the device once the power LED on the back blinks amber Revert to Stock: The boot command needs to be reverted before flashing the stock firmware, otherwise it will fail to boot and get stuck in recovery mode (red power LED flashing). * Still in OpenWrt run: fw_setenv bootcmd bootipq * Restart the device * Flash the stock firmware RBx850-Va.b.c.d.img using nmrpflash [0]: https://github.com/jclehner/nmrpflash Authored by Michael Lotz. Piotr Szczepanik: * Cherry-picked the RBx850 support commit from openwrt/openwrt#22159 and adapted it to current main. * Reworked the DTS networking changes for the current qualcommax ipq807x device-tree style. * Verified the RBx750 DTS split preserves the existing RBx750-specific layout while moving shared RBx750/RBx850 nodes into a common DTSI. Signed-off-by: Michael Lotz <mmlr@mlotz.ch> Signed-off-by: Piotr Szczepanik <piter75@gmail.com> Link: https://github.com/openwrt/openwrt/pull/24906 Signed-off-by: Robert Marko <robimarko@gmail.com>