AM62L-PROCESSOR-SDK: CC33xx Bluetooth module functionality issue

Remember, this device requires that you send a command to the Wi-Fi debugfs interface to start the Bluetooth.

1. Make sure your device tree is setup correctly

2. Start Wi-Fi

3.echo "1" > /sys/kernel/debug/ieee80211/wlan0/cc33xx/ble_enable

Hi,

I used the method you provided, applied patches, and modified the config, but  no /sys/kernel/debug/iee80211/wlan0/ node has been generated.

root@am62lxx-evm:~# lsmod | grep btti
btti_uart 16384 0
bluetooth 557056 3 btti_uart

if you do ifconfig, does wlan0 come up?

root@am62lxx-evm:~# ifconfig
eth1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 56:0b:50:84:88:e9  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 18  bytes 2192 (2.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 18  bytes 2192 (2.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether f8:fb:90:14:da:b2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

but，

root@am62lxx-evm:~# ls /sys/kernel/debug/ieee80211/
phy0

Do you have debugfs enabled in your kernel?

As Dean said on the post, you are probably missing DEBUGFS kernel module.

Make sure that the kernel module is enabled when building your kernel.

CONFIG_MAC80211_DEBUGFS=y
CONFIG_BT_DEBUGFS=y

Hello Xiongwei,

1. Which AM62L SDK are you using? 

2. Did you modify the DTS to include the BLE?

Hi，

1.SDK11.00.05.02

2.

&wkup_uart0 { 
	// BLE host UART
	status = "okay";

	bluetooth {
		compatible = "ti,cc33xx-bt";
		pinctrl-names = "default";
		pinctrl-0 = <&wkup_uart0_pins>;
		cc33xx-supply = <&cc33xx_en_reg>;
		max-speed = <115200>;
	};
};

Hello xiongwei,

Is this a custom board? Are you sure you are supposed to use wkup_uart0 instead of one of the main_uart peripherals?

Just for your reference I am attaching an example DTS patch that was developed for the AM62L EVM.https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/968/3678.0001_2D00_am62l_2D00_dts_2D00_enable_2D00_UART_2D00_on_2D00_cc33xx.patch

Hi，

I am sure to use wkup_uart0, and wkup_uart0 is functioning properly as a serial port

I believe you should also setup a serial alias as I have shown in the patch above. Have you done this?

Please do share the full dmesg and entire terminal logs before linux power up and after executing 'echo 1 > /sys/kernel/debug/ieee80211/phy0/cc33xx/ble_enable'

Sabeeh,

It not generator note on the Linux user space. /sys/kernel/debug/ieee80211/wlan0

Please guide customer how to further debug on the customer board. Thanks~