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qualcommax: ipq807x: add Netgear RBx750 support

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Netgear RBx750 are tri band, 2.4GHz and 2x 5GHz, 8 stream 802.11ax mesh
devices from the Orbi series. The RBR750 is a router with a WAN and 3 LAN
ports. The RBS750 is a satellite without WAN port, only 2 LAN ports and
half the flash. The hardware is otherwise identical. They were sold in
kits as RBK752-RBK757, with one router and 1-6 satellites.

Hardware:
* SoC: Qualcomm IPQ8074
* RAM: 1GiB 1x Samsung
* Flash: 512MiB Winbond W29N04GZ or 256MiB Winbond W29N02GZ
* WLAN 2.4GHz: QCN5024 2x2:2 b/g/n/ax
* WLAN 5GHz Low Band: QCN5054 2x2:2 a/n/ac/ax 5180-5320MHz
* WLAN 5GHz High Band: QCN5054 4x4:4 a/n/ac/ax 5500-5700MHz
* Ethernet: QCA8075 switch with 1 WAN and 3 LAN ports or 2 LAN ports
* 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: base address on label
LAN2: base + 1
LAN3: base + 2
WAN: base + 1
2.4GHz: base + 2
5GHz-Low: base + 3
5GHz-High: base + 4

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 the device LAN port closest to the power jack 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 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).

* Run: fw_setenv bootcmd bootipq
* Restart the device
* Flash the stock firmware RBx750-Va.b.c.d.img using nmrpflash

[0]: https://github.com/jclehner/nmrpflash

Signed-off-by: Michael Lotz <mmlr@mlotz.ch>
Link: https://github.com/openwrt/openwrt/pull/21938
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Michael Lotz 2026-02-05 23:02:55 +01:00 • committed by Robert Marko
parent c6eb8b84d2
commit d0bd7ad1a2
10 changed files with 393 additions and 0 deletions
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2
package/boot/uboot-tools/uboot-envtools/files/qualcommax_ipq807x
View file

@ -40,6 +40,8 @@ qnap,301w)
;;
dynalink,dl-wrx36|\
netgear,rax120v2|\
netgear,rbr750|\
netgear,rbs750|\
netgear,sxr80|\
netgear,sxs80|\
netgear,wax218|\

2
package/firmware/ipq-wifi/Makefile
View file

@ -68,6 +68,7 @@ ALLWIFIBOARDS:= \
netgear_rax120v2 \
netgear_rbk20 \
netgear_rbk40 \
netgear_rbk750 \
netgear_sxk80 \
netgear_wax214 \
netgear_wax218 \
@ -256,6 +257,7 @@ $(eval $(call generate-ipq-wifi-package,netgear_lbr20,Netgear LBR20))
$(eval $(call generate-ipq-wifi-package,netgear_rax120v2,Netgear RAX120v2))
$(eval $(call generate-ipq-wifi-package,netgear_rbk20,Netgear RBK20))
$(eval $(call generate-ipq-wifi-package,netgear_rbk40,Netgear RBK40))
$(eval $(call generate-ipq-wifi-package,netgear_rbk750,Netgear RBK750))
$(eval $(call generate-ipq-wifi-package,netgear_sxk80,Netgear SXK80))
$(eval $(call generate-ipq-wifi-package,netgear_wax214,Netgear WAX214))
$(eval $(call generate-ipq-wifi-package,netgear_wax218,Netgear WAX218))

13
target/linux/qualcommax/files/arch/arm64/boot/dts/qcom/ipq8074-rbr750.dts Normal file
View file

@ -0,0 +1,13 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright (c) 2026 Michael Lotz <mmlr@mlotz.ch>
*/
/dts-v1/;
#include "ipq8074-rbx750.dtsi"
/ {
model = "Netgear RBR750";
compatible = "netgear,rbr750", "qcom,ipq8074";
};

21
target/linux/qualcommax/files/arch/arm64/boot/dts/qcom/ipq8074-rbs750.dts Normal file
View file

@ -0,0 +1,21 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright (c) 2026 Michael Lotz <mmlr@mlotz.ch>
*/
/dts-v1/;
#include "ipq8074-rbx750.dtsi"
/ {
model = "Netgear RBS750";
compatible = "netgear,rbs750", "qcom,ipq8074";
};
&dp1 {
status = "disabled";
};
&dp2 {
status = "disabled";
};

292
target/linux/qualcommax/files/arch/arm64/boot/dts/qcom/ipq8074-rbx750.dtsi Normal file
View file

@ -0,0 +1,292 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright (c) 2026 Michael Lotz <mmlr@mlotz.ch>
*/
/dts-v1/;
#include "ipq8074.dtsi"
#include "ipq8074-hk-cpu.dtsi"
#include "ipq8074-ess.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
/ {
aliases {
led-boot = &lp5562_white;
led-failsafe = &lp5562_red;
led-upgrade = &lp5562_blue;
serial0 = &blsp1_uart5;
label-mac-device = &dp5;
};
chosen {
stdout-path = "serial0:115200n8";
bootargs-append = " ubi.mtd=rootfs root=/dev/ubiblock0_1";
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&tlmm 33 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
wps {
label = "wps";
gpios = <&tlmm 34 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_WPS_BUTTON>;
};
};
leds {
compatible = "gpio-leds";
power_green {
gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_POWER;
linux,default-trigger = "default-on";
};
power_red {
gpios = <&tlmm 56 GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_POWER;
};
};
};
&blsp1_uart5 {
status = "okay";
};
&prng {
status = "okay";
};
&cryptobam {
status = "okay";
};
&crypto {
status = "okay";
};
&edma {
status = "okay";
};
&tlmm {
mdio_pins: mdio-pins {
mdc {
pins = "gpio68";
function = "mdc";
drive-strength = <8>;
bias-pull-up;
};
mdio {
pins = "gpio69";
function = "mdio";
drive-strength = <8>;
bias-pull-up;
};
};
};
&switch {
status = "okay";
switch_lan_bmp = <(ESS_PORT2 | ESS_PORT4 | ESS_PORT5)>;
switch_wan_bmp = <ESS_PORT1>;
switch_mac_mode = <MAC_MODE_PSGMII>;
qcom,port_phyinfo {
port@1 {
port_id = <1>;
phy_address = <0>;
};
port@2 {
port_id = <2>;
phy_address = <1>;
};
port@4 {
port_id = <4>;
phy_address = <3>;
};
port@5 {
port_id = <5>;
phy_address = <4>;
};
};
};
&mdio {
status = "okay";
pinctrl-0 = <&mdio_pins>;
pinctrl-names = "default";
reset-gpios = <&tlmm 37 GPIO_ACTIVE_LOW>;
ethernet-phy-package@0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "qcom,qca8075-package";
reg = <0>;
phy0: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0>;
};
phy1: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
};
phy3: ethernet-phy@3 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <3>;
};
phy4: ethernet-phy@4 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <4>;
};
};
};
&dp1 {
status = "okay";
phy-handle = <&phy0>;
label = "wan";
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_boarddata 1>;
};
&dp2 {
status = "okay";
phy-handle = <&phy1>;
label = "lan3";
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_boarddata 2>;
};
&dp4 {
status = "okay";
phy-handle = <&phy3>;
label = "lan2";
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_boarddata 1>;
};
&dp5 {
status = "okay";
phy-handle = <&phy4>;
label = "lan1";
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_boarddata 0>;
};
&qpic_bam {
status = "okay";
};
&qpic_nand {
status = "okay";
nand@0 {
reg = <0>;
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
nand-bus-width = <8>;
partitions {
compatible = "qcom,smem-part";
partition-board_data {
label = "board_data";
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
macaddr_boarddata: macaddr@40 {
compatible = "mac-base";
reg = <0x40 0x6>;
#nvmem-cell-cells = <1>;
};
};
};
partition-0-appsblenv {
label = "0:appsblenv";
nvmem-layout {
compatible = "u-boot,env";
env-size = <0x40000>;
};
};
};
};
};
&wifi {
status = "okay";
qcom,ath11k-calibration-variant = "Netgear-RBK750";
};
&blsp1_i2c2 {
status = "okay";
lp5562@31 {
compatible = "ti,lp5562";
reg = <0x31>;
clock-mode = [02];
#address-cells = <1>;
#size-cells = <0>;
lp5562_red: led@0 {
chan-name = "lp5562_red";
led-cur = [20];
max-cur = [60];
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_STATUS;
reg = <0>;
};
lp5562_green: led@1 {
chan-name = "lp5562_green";
led-cur = [20];
max-cur = [60];
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_STATUS;
reg = <1>;
};
lp5562_blue: led@2 {
chan-name = "lp5562_blue";
led-cur = [20];
max-cur = [60];
color = <LED_COLOR_ID_BLUE>;
function = LED_FUNCTION_STATUS;
reg = <2>;
};
lp5562_white: led@3 {
chan-name = "lp5562_white";
led-cur = [20];
max-cur = [60];
color = <LED_COLOR_ID_WHITE>;
function = LED_FUNCTION_STATUS;
reg = <3>;
};
};
};

40
target/linux/qualcommax/image/ipq807x.mk
View file

@ -23,6 +23,17 @@ define Build/asus-trx
mv $@.new $@
endef
define Build/netgear-rbx750-qsdk-ipq-factory
$(CP) $(FLASH_SCRIPT) $(KDIR_TMP)/
echo "VERSION : V8.0.0.0_$(LINUX_VERSION)" > $@.metadata
echo "MODEL_ID : $(DEVICE_MODEL)" >> $@.metadata
$(TOPDIR)/scripts/mkits-qsdk-ipq-image.sh $@.its $(FLASH_SCRIPT) txt $@.metadata ubi $@
PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
@mv $@.new $@
endef
define Build/wax6xx-netgear-tar
mkdir $@.tmp
mv $@ $@.tmp/nand-ipq807x-apps.img
@ -282,6 +293,35 @@ endif
endef
TARGET_DEVICES += netgear_rax120v2
define Device/netgear_rbx750
$(call Device/FitImage)
$(call Device/UbiFit)
SOC := ipq8074
DEVICE_VENDOR := Netgear
BLOCKSIZE := 128k
PAGESIZE := 2048
DEVICE_PACKAGES := ipq-wifi-netgear_rbk750 kmod-leds-lp5562
DEVICE_DTS_CONFIG := config@oak03
FLASH_SCRIPT := netgear_rbx750.bootscript
IMAGES += factory.chk
IMAGE/factory.chk := append-ubi | netgear-rbx750-qsdk-ipq-factory | \
netgear-chk
endef
define Device/netgear_rbr750
$(call Device/netgear_rbx750)
DEVICE_MODEL := RBR750
NETGEAR_BOARD_ID := U12H415T00_NETGEAR
endef
TARGET_DEVICES += netgear_rbr750
define Device/netgear_rbs750
$(call Device/netgear_rbx750)
DEVICE_MODEL := RBS750
NETGEAR_BOARD_ID := U12H416T00_NETGEAR
endef
TARGET_DEVICES += netgear_rbs750
define Device/netgear_sxk80
$(call Device/FitImage)
$(call Device/UbiFit)

10
target/linux/qualcommax/image/netgear_rbx750.bootscript Normal file
View file

@ -0,0 +1,10 @@
imxtract $imgaddr ubi
nand device 0
setenv firmware_partition 0
setenv mtdids nand0=nand0
setenv mtdparts mtdparts=nand0:0x6d00000@0x11c00000(fs) # RBR750
mtdparts || setenv mtdparts mtdparts=nand0:0x4280000@0x3e80000(fs) # RBS750
nand erase.part fs
nand write $fileaddr fs $filesize
setenv bootcmd "ubi part fs && ubi read 0x44000000 kernel && bootm"
saveenv

2
target/linux/qualcommax/ipq807x/base-files/etc/board.d/02_network
View file

@ -39,6 +39,7 @@ ipq807x_setup_interfaces()
linksys,mx4200v1|\
linksys,mx4200v2|\
linksys,mx4300|\
netgear,rbr750|\
prpl,haze|\
redmi,ax6|\
spectrum,sax1v1k|\
@ -59,6 +60,7 @@ ipq807x_setup_interfaces()
netgear,wax620)
ucidef_set_interface_lan "lan" "dhcp"
;;
netgear,rbs750|\
netgear,wax630)
ucidef_set_interface_lan "lan1 lan2" "dhcp"
;;

9
target/linux/qualcommax/ipq807x/base-files/etc/hotplug.d/firmware/11-ath11k-caldata
View file

@ -67,6 +67,15 @@ case "$FIRMWARE" in
ath11k_patch_mac $(mtd_get_mac_binary boarddata1 0x6) 2
ath11k_set_macflag
;;
netgear,rbr750|\
netgear,rbs750)
caldata_extract "0:art" 0x1000 0x20000
label_mac=$(get_mac_label_dt)
ath11k_patch_mac $(macaddr_add $label_mac 3) 0
ath11k_patch_mac $(macaddr_add $label_mac 2) 1
ath11k_patch_mac $(macaddr_add $label_mac 4) 2
ath11k_set_macflag
;;
netgear,sxr80|\
netgear,sxs80)
caldata_extract "0:art" 0x1000 0x20000

2
target/linux/qualcommax/ipq807x/base-files/lib/upgrade/platform.sh
View file

@ -180,6 +180,8 @@ platform_do_upgrade() {
dynalink,dl-wrx36|\
edimax,cax1800|\
netgear,rax120v2|\
netgear,rbr750|\
netgear,rbs750|\
netgear,sxr80|\
netgear,sxs80|\
netgear,wax218|\