alansrobotlab

I feel dirty for solving it this way but I don't understand enough about the system to fix it properly. There's something goofy with the bluetooth controller in these chips and radxa works around it by resetting the UART connection with a service file that calls rsetup. You can manually fix/repair/start bluetooth with the following command but you need to run it once every time you reboot: https://forum.radxa.com/t/bluetooth-not-working-zero-3w-official-os/24072/5 hciattach -s 1500000 /dev/ttyS1 any 1500000 flow nosleep radxa has a service file that resets the bluetooth UART1 /dev/ttyS1 on boot. To get it installed you need to install librdui, rsetup, and rsetup-config-aic8800-ttys1 from the radxa githubs https://github.com/radxa-pkg/rsetup/releases/tag/latest https://github.com/radxa-pkg/librtui/releases/latest So the most current file links as of today are: https://github.com/radxa-pkg/librtui/releases/download/0.1.6/librtui_0.1.6_all.deb https://github.com/radxa-pkg/rsetup/releases/download/0.4.12/rsetup_0.4.12_all.deb https://github.com/radxa-pkg/rsetup/releases/download/0.4.12/rsetup-config-aic8800-ttys1_0.4.12_all.deb Then cd to wherever you download them to and run: sudo apt install ./librtui_0.1.6_all.deb sudo app install ./rsetup_0.4.12_all.deb sudo apt install ./rsetup-config-aic8800-ttys1_0.4.12_all.deb and reboot. then confirm with your tool of choice, or bluetoothctl: spot@radxa-zero3:~$ bluetoothctl hci0 new_settings: powered bondable ssp br/edr le secure-conn cis-central cis-peripheral Agent registered [CHG] Controller 98:03:CF:D2:2C:55 Pairable: yes [bluetooth]# exit spot@radxa-zero3:~$ Enjoy!

Just in case you're still looking for an answer... In order to enable a uart you have to grab the relevant dts file from: https://github.com/radxa-pkg/radxa-overlays/tree/main/arch/arm64/boot/dts/rockchip/overlays They're all in rk3568-* for some reason. For example if you wanted to enable uart4 on pins 16/18 you'd grab https://github.com/radxa-pkg/radxa-overlays/blob/main/arch/arm64/boot/dts/rockchip/overlays/rk3568-uart4-m1.dts Then load it with armbian-add-overlay. amrbian-add-overlay rk3568-uart4-m1.dts and reboot.

I found a thread over at dietpi that talks about radxa zero 3w hardware rev with a different bluetooth controller. https://dietpi.com/forum/t/radxa-zero-3w-bluetooth-not-working/20555/11 Can confirm that I have the same bluetooth module listed in dmesg spot@radxa-zero3:~$ dmesg | grep -i aic8800 [ 18.041504] AICWFDBG(LOGINFO) aicwf_sdio_chipmatch USE AIC8800D80 [ 18.058640] rwnx_load_firmware :firmware path = /lib/firmware/aic8800/SDIO/aic8800D80//fw_patch_table_8800d80_u02.bin [ 18.075178] rwnx_load_firmware :firmware path = /lib/firmware/aic8800/SDIO/aic8800D80//fw_adid_8800d80_u02.bin [ 18.082304] rwnx_load_firmware :firmware path = /lib/firmware/aic8800/SDIO/aic8800D80//fw_patch_8800d80_u02.bin [ 18.136946] rwnx_load_firmware :firmware path = /lib/firmware/aic8800/SDIO/aic8800D80//fmacfw_8800d80_u02.bin

I'm unable to activate bluetooth in the armbian build above. Confirmed bluetooth working in the vendor radxa bookworm xfce build. Here's what I see in dmesg that may be relevant: ... [ 9.329177] kernel: Bluetooth: Core ver 2.22 [ 9.329247] kernel: NET: Registered PF_BLUETOOTH protocol family [ 9.329261] kernel: Bluetooth: HCI device and connection manager initialized [ 9.329281] kernel: Bluetooth: HCI socket layer initialized [ 9.329296] kernel: Bluetooth: L2CAP socket layer initialized [ 9.329337] kernel: Bluetooth: SCO socket layer initialized ... [ 11.165207] kernel: [BT_RFKILL]: bluetooth_platdata_parse_dt: get property: uart_rts_gpios = 77. [ 11.165235] kernel: [BT_RFKILL]: bluetooth_platdata_parse_dt: get property: BT,reset_gpio = 17. [ 11.165248] kernel: [BT_RFKILL]: bluetooth_platdata_parse_dt: get property: BT,wake_gpio = 12. [ 11.165261] kernel: [BT_RFKILL]: bluetooth_platdata_parse_dt: get property: BT,wake_host_irq = 11. [ 11.165269] kernel: [BT_RFKILL]: bluetooth_platdata_parse_dt: clk_get failed!!!. [ 11.165326] kernel: [BT_RFKILL]: Request irq for bt wakeup host [ 11.165815] kernel: [BT_RFKILL]: ** disable irq [ 11.165979] kernel: [BT_RFKILL]: bt shut off power [ 11.166001] kernel: [BT_RFKILL]: bt_default device registered. [ 11.166198] kernel: input: bt-powerkey as /devices/platform/wireless-bluetooth/input/input2 ...