[V40/R40 Boards]

you must run two commands one to compile u-boot with the codec node, the other is to compile and copy the new codec with r40/v40 support. and finally it remains to load the modules, there are two ways one is to load it manually:

sudo modprobe sun8i-codec-analog

sudo modprobe sun4i-codec

and the second way is to add the two previous commands in /etc/rc.local which loads the modules automatically. first try the manual commands, if after loading manually the sound card appears you should modify rc.local so that it loads automatically

[V40/R40 Boards]

yes, you can test in m2-berry, and it should work at least from kernel 5.4.x

[V40/R40 Boards]

A volunteer. What can I test and confirm if it works correctly?

[V40/R40 Boards]

please not use. give me more time

[V40/R40 Boards]

it was only a problem with the name of the extension that has already been corrected

[V40/R40 Boards]

Compile Codec for R40/V40:

curl -s https://raw.githubusercontent.com/juanesf/codec/master/compile-codec.sh | sudo bash /dev/stdin

Compile u-boot for R40 emmc (M2-Ultra):

curl -s https://raw.githubusercontent.com/juanesf/u-boot/audio-codec/compile_u-boot_r40_emmc.sh | sudo bash /dev/stdin

Compile u-boot for R40 sd (M2-Ultra):

curl -s https://raw.githubusercontent.com/juanesf/u-boot/audio-codec/compile_u-boot_r40_sd.sh | sudo bash /dev/stdin

Compile u-boot for V40 emmc (M2-Berry):

curl -s https://raw.githubusercontent.com/juanesf/u-boot/audio-codec/compile_u-boot_v40_emmc.sh | sudo bash /dev/stdin

Compile u-boot for V40 sd (M2-Berry)

curl -s https://raw.githubusercontent.com/juanesf/u-boot/audio-codec/compile_u-boot_v40_sd.sh | sudo bash /dev/stdin

 

it only remains to add two lines to /etc/rc.local before exit 0:

 

modprobe sun8i-codec-analog

modprobe sun4i-codec

 

sudo nano /etc/rc.local

 

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

modprobe sun8i-codec-analog
modprobe sun4i-codec

exit 0

 

[V40/R40 Boards]

what happens is this is just the module, for them to work you need to add the codec node to sun8i-r40.dts and sun8i-r40-bananapi-m2-ultra.dts, just give me a few hours to fix some details and give you details how to compile u-boot with changes

[V40/R40 Boards]

Hello, following the steps to add audio support to h3, v3s, a23 modified sun4i-codec to add support for r40, and if anyone else wants to try:

 

Video

 

curl -s https://raw.githubusercontent.com/juanesf/codec/master/compile-codec.sh | sudo bash /dev/stdin

 

[V40/R40 Boards]

http://forum.banana-pi.org/t/enable-audio-and-mic-bpi-m2ultra-r40/10532/4?u=juanesf

[V40/R40 Boards]

Hello again, here are the system logs before, after and during the u-boot compilation

log-armbian-5.5.rc2-after log-armbian-5.5.rc2-before log-armbian-5.5.rc2-compile_u-boot

[V40/R40 Boards]

Hi everyone. I have compiled sunxi-next u-boot and activated the SoC internal analog audio codec, now I am testing the mali node. Audio Working!

Commit:

https://github.com/juanesf/u-boot/commits/master