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..."
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:
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.