Wl12xx driver
From ArmadeusWiki
The wl12xx driver is used by the Wi-Fi/Bluetooth chip present on the APF6 module. Before using the Wi-Fi, you have to calibrate the chip. This page details how to do it.
Installation
- On APF6, all needed tools/drivers are installed by default. You can directly switch to calibration.
Linux
- Be sure to have CONFIG_NL80211_TESTMODE enabled.
Networking support ---> Wireless ---> <*> cfg80211 - wireless configuration API [*] nl80211 testmode command
Buildroot
- You need the calibrator tool from the ti-utils package.
Target package ---> Hardware handling ---> [*] ti-utils
Calibration
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Note: Following instructions are only needed the first time after you flashed your rootfs. |
- Poweroff then on your board. You have limited time to execute the following commands so don't be lazy ;-).
- Use the calibrator tool to generate the new calibration data. This will generate a file called new-nvs.bin.
# calibrator set ref_nvs /usr/share/ti-utils/ini_files/127x/TQS_S_2.6.ini
- Copy the file to the right place.
# cp new-nvs.bin /lib/firmware/ti-connectivity/wl1271-nvs.bin
- Set a MAC address (here for example an Armadeus Systems one).
# calibrator set nvs_mac /lib/firmware/ti-connectivity/wl1271-nvs.bin 00:1E:AC:00:51:22
- Load the wl12xx driver.
# modprobe wl12xx # modprobe wlcore_sdio wl1271_sdio mmc0:0001:2: legacy platform data not found, trying device tree ... wlcore: loaded
- Calibrate the chip.
# calibrator plt calibrate dual wlcore: power up wlcore: firmware booted in PLT mode PLT_ON (PLT 6.3.10.0.133) wlcore: testmode cmd: radio status=0 The path to NVS file not provided, use default (/lib/firmware/ti-connectivity/wl1271-nvs.bin) wlcore: power down
- Reset the chip. (or reboot the board)
# echo 40 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio40/direction # echo 0 > /sys/class/gpio/gpio40/value; sleep 1 # echo 1 > /sys/class/gpio/gpio40/value
- Congratulations ! Your chip is calibrated. :)
Daily use
- Reset the chip. (or reboot the board)
# echo 40 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio40/direction # echo 0 > /sys/class/gpio/gpio40/value; sleep 1 # echo 1 > /sys/class/gpio/gpio40/value
- Load the wl12xx driver.
# modprobe wl12xx # modprobe wlcore_sdio wl1271_sdio mmc0:0001:2: legacy platform data not found, trying device tree ... wlcore: loaded
- Power up the wireless interface.
# ifconfig wlan0 up wlcore: firmware booted (Rev 6.3.10.0.133) IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Going further
- Now you can use the general instructions here to setup your WiFi network.
