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Cirrus Logic Audio Card working on the Raspberry Pi 2

Former Member

Hi all!

 

As you might know, Cirrus Logic's main kernel source branch recently switched to 3.18.

My first thought was "Hmm, that means the Cirrus Logic card could finally work on the RPi2..."

I have built a couple of 3.18 kernels for my B+ and RPi2 and I have managed to get both models to produce sound image

 

It's still early days, i.e. there are possibly bugs and glitches to fix, but for those of you who would like to try it out I've made an image file that you can download here:

https://drive.google.com/file/d/0BzIaxMH3N5O1cmJ1bFhMcG1hc0E/view?usp=sharing

The file is a 1.3 GB zip. Uncompressed size is 3.1 GB, so it fits comfortably on a 4 GB card.


The image is based on the standard 2015-02-16-raspbian-wheezy image from the Foundation that you flash to a SD card for a fresh install.

I have only added my kernels and set up the configuration files to get the card going.

It should work on the older B model  with a Wolfson Audio Card too, but I haven't tested that yet.

 

Have fun!

--

Ragnar

Parents

  • For good measure, I've put together a tar archive of the 3.18 kernels with Cirrus Logic drivers, that can be installed on top of an existing Raspbian 3.18 installation.

    Download the archive file kernel_3_18_9_W_CL.tgz from here: https://drive.google.com/file/d/0BzIaxMH3N5O1S1FfSGpqYjEwaVk/view?usp=sharing

     

    To install:
    Become root: sudo -s
    Go to root directory: cd /
    Untar the archive: tar xvzf /path/to/where/you/saved/kernel_3_18_9_W_CL.tgz
    Add these lines

    dtparam=spi=on
dtparam=i2c_arm=on
dtoverlay=rpi-cirrus-wm5102-overlay

    to the file /boot/config.txt

    On a RPi2B, also add

    kernel=kernel7_CL.img

    or, on all others, add

    kernel=kernel_CL.img

    to /boot/config.txt

     

    Put these lines into /etc/modprobe.d/raspi-blacklist.conf  (create the file if it doesn't exist.)

    softdep arizona-spi pre: arizona-ldo1
softdep spi-bcm2708 pre: fixed

    Reboot.

     

    If it doesn't work, you can revert to your original kernel by just removing the "kernel=kernel_CL.img" line from /boot/config.txt

    --

    Ragnar

  • in reply to Former Member

    I cant add these line after installing ...please help me i cant alter /boot/config.txt ..please

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