WL1807MOD: Loading MIMO 2x2 binary configuration

Hmaied BA

Part Number: WL1807MOD

Tool/software:

Hello,

I’m trying to use the WL1807 module with MIMO 2x2 support. I followed the instructions from the TI document: to generate the wl18xx-conf.bin configuration file.

Here are the steps I followed:

I generated the base configuration using configure-device.sh.

Then, I updated the configuration with:

./wlconf -i /lib/firmware/ti-connectivity/wl18xx-conf.bin \
         -s wl18xx.ht.mode=0x0 \
         -o /lib/firmware/ti-connectivity/wl18xx-conf.bin

./wlconf -i /lib/firmware/ti-connectivity/wl18xx-conf.bin \
         -s wl18xx.phy.number_of_assembled_ant2_4=0x02 \
         -o /lib/firmware/ti-connectivity/wl18xx-conf.bin

I placed the resulting file in: /lib/firmware/ti-connectivity/wl18xx-conf.bin

However, it seems the configuration is not being loaded by the driver.

[    0.961407] wl18xx_driver wl18xx.1.auto: Direct firmware load for ti-connectivity/wl1271-nvs.bin failed with error -2
[    0.961552] wl18xx_driver wl18xx.1.auto: Direct firmware load for ti-connectivity/wl18xx-conf.bin failed with error -2
[    0.961575] wlcore: ERROR could not get configuration binary ti-connectivity/wl18xx-conf.bin: -2
[    0.975701] wlcore: WARNING falling back to default config
[    1.491744] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
[    1.506348] wlcore: loaded

It looks like the driver cannot find or load the config file, and falls back to the default configuration.

Am I missing something in the process?
Any help or suggestions would be greatly appreciated.

Thanks in advance!

6 months ago

0 Sabeeh Khan1 6 months ago

TI__Mastermind 33380 points

Hello,

Before the wlconf modification, were you getting this error? Can you check that there aren't issues with your file system?

0 Hmaied BA 6 months ago in reply to Sabeeh Khan1

Prodigy 80 points

I was not using a configuration file before the wlconf modification. I tried loading the default file (wl18xx-conf-default.bin), but I still get the same error

0 Sabeeh Khan1 6 months ago in reply to Hmaied BA

TI__Mastermind 33380 points

Hi Hmaied,

If using the default conf.bin it must be renamed to "wl18xx-conf.bin".

Some systems also use path /usr/lib/firmware/ti-connectivity/. Can you try putting wl18xx-conf.bin in this path as well? Are you rebooting the system after the conf.bin has been installed into the directory?

0 Hmaied BA 6 months ago in reply to Sabeeh Khan1

Prodigy 80 points

The problem seems to be that the config is loaded before the rootfs is mounted. How can I check if MIMO is correctly enabled now? Also, is it possible to use the MECH protocol with MIMO?

Thanks,

+1 Sabeeh Khan1 5 months ago in reply to Hmaied BA

TI__Mastermind 33380 points

Hello Hmaied,

You can edit the config binary, and then reboot the platform so that the newly edited file will be used. You can check that MIMO is loaded by dumping the contents of the config binary.

./wlconf -i /lib/firmware/ti-connectivity/wl18xx-conf.bin --get

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WL1807MOD: Loading MIMO 2x2 binary configuration