Installing Slarm64-current on the Pi 400

Exaga · 01-11-2021, 04:03 PM

Quote:

Originally Posted by pchristy

Give me a clue! What am I looking for here?

You're dealing with a hybrid of SARPi64/slarm64 and I have no clue to give you about such a setup or its configuration.

Setting up wireless under Slackware ARM on a Raspberry Pi: https://sarpi.fatdog.eu/index.php?p=wireless-nic

pchristy · 01-11-2021, 04:09 PM

Sorry if I wasn't clear. This is currently a pure slarm64 system, though I had the same problem both on hybrid and sarpi/slackwarearm.
--
Pete

sndwvs · 01-12-2021, 12:14 AM

Quote:

Originally Posted by pchristy

In the end I installed sndwvs xfce image - the one from the 29th Dec, which seems to have overcome the problems I was having the first time I tried with earlier versions. I then installed kde5, and a lot of the necessary support libraries (you always miss some, if you don't use the slackware installer!) and now it all runs fine. It boots into the sddm login screen fine, I've managed to compile xvidcore and x264, but not x265 or ffmpeg! ffmpeg complains about a missing gnutls, but it IS installed!

The big remaining problem is that it refuses to recognise the built-in bluetooth or wifi! Both come up immediately on the supplied Raspbian OS, but refuse to work under slarm64. If I plug a bluetooth dongle in, it works fine - but not the onboard bluetooth or wifi!

please give full dmesg.

pchristy · 01-12-2021, 05:47 AM

OK, here you go. I've attached both dmesg and lsmod.

As far as I can see, the modules have loaded (seems to be the same one for both wifi and bluetooth, which makes sense).

The bluetooth manager tells me that no adapters have been found, and networkmanager doesn't display any wifi networks.

I'm going to boot it into raspbian before lunch and see if I can spot anything different (firmware?).

--
Pete

sndwvs · 01-12-2021, 06:05 AM

yes there is a problem with the firmware,
for wifi:

Code:

cd /lib/firmware/brcm/ &&\
ln -s brcmfmac43456-sdio.bin brcmfmac43456-sdio.raspberrypi,400.txt &&\
reboot

pchristy · 01-12-2021, 06:27 AM

OK, done that, still not working. brcmfmac43456-sdio.bin seems to be a link to ../ap6256/fw_bcm43456c5_ag.bin

New dmesg and lsmod attached.

--
Pete

sndwvs · 01-12-2021, 06:37 AM

try replacing with these
brcmfmac43456-sdio.bin
brcmfmac43456-sdio.clm_blob
brcmfmac43456-sdio.txt

pchristy · 01-12-2021, 07:43 AM

OK, copied those into the /lib/firmware/brcm folder, overwriting the existing files. No change. No wifi showing in networkmanager and no adapters showing in the bluetooth manager.

I'll be in and out of the house this afternoon - got to pick my wife up, and take her car to the garage at some point, but I'll have a look at the firmware folder on raspbian, see if there's a clue there.

I assume the firmware is not sensitive to 32/64 bit? (Raspbian appears to be 32bit).

--
Pete

sndwvs · 01-12-2021, 07:51 AM

Quote:

Originally Posted by pchristy

I assume the firmware is not sensitive to 32/64 bit? (Raspbian appears to be 32bit).

yes, it doesn't matter.
you need to watch rfkill, raspberry pi 4 has a different wifi module.

pchristy · 01-12-2021, 07:54 AM

OK, I know it all works on raspbian, so I'm going to copy the contents of the brcm folder over and see what happens (yes, I have backed it up!)

--
Pete

pchristy · 01-12-2021, 08:09 AM

OK, copying the contents of Raspbian's /lib/firmware/brcm to slarm64's has got wifi working! My wifi network now appears "automagically" in networkmanager!

However, the bluetooth manager still says "no adapters".

dmesg and lsmod attached...

--
Pete

sndwvs · 01-12-2021, 08:51 AM

for bluetooth you need a udev rule and a script

you also need to understand what specific firmware is needed for wifi, according to the links above firmware from 2020-12-02-raspios-buster-armhf-lite.img

pchristy · 01-12-2021, 09:11 AM

Hm! Both those already exist. This install came from your xfce image of the 29/12/2020.

The bluetooth subsystem seems to be working, and can be restarted:

Code:

~# /etc/rc.d/rc.bluetooth restart
Starting Bluetooth services:  bluetoothd hciconfig sdptool hciattach

If I plug a USB bluetooth adapter in, it works fine. It just doesn't recognise the internal one.

--
Pete

pchristy · 01-12-2021, 11:03 AM

I downloaded the 2020-12-02-raspios-buster-armhf-lite.img and copied the contents of /lib/firmware/brcm to my sd card. No difference, wifi still works, bluetooth doesn't.

On Raspbian, the /lib folder is a link to /usr/lib, and in there is a folder called bluetooth containing a single executable file called bluetoothd. Now being an executable, this will be architecture dependent, but I gave it a try anyway - didn't help, so I deleted it. But it looks as if the Pi-400 may need something else besides the firmware to get it up and running?

Any thoughts?

--
Pete

sndwvs · 01-12-2021, 11:16 AM

Quote:

Originally Posted by pchristy

I downloaded the 2020-12-02-raspios-buster-armhf-lite.img and copied the contents of /lib/firmware/brcm to my sd card. No difference, wifi still works, bluetooth doesn't.

this is not specific, half of it is unnecessary for this board.

try running btuart

Code:

ls /dev | grep -P 'ttyAM|ttyS|serial'

should be

Code:

serial0
serial1
ttyAMA0
ttyS0

also check in /boot/config.txt

Code:

[all]
dtparam=i2c_arm=on
dtparam=spi=on