Zynq Mini-ITX Device Tree with ADAU1761 by hkm-av
Hi,
I recently built an Ubuntu Linux platform for the Avnet Zynq Mini-ITX 7z045/7z100 platforms, and I found a couple of issues with the device tree files. Initially I found there was no audio in/out using the codec, even when using an updated adau1761.state file that I downloaded from another forum post on this site (thanks for that!).
In the zynq-mini-itx-adv7511.dtsi file, I discovered that the address for the I2C mux was specified as 0x74, instead of the correct address of 0x70. On further examination, there were no entries for the adau1761 present. I added a block under the i2cswitch to place the adau1761 at address 0x5, then I copied the axi_i2s_0 (addr 0x77600000) and the zed_sound blocks from the corresponding zedboard dtsi file. At that point all four audio jacks functioned as expected.
I figured anyone using the Zynq Mini-ITX with audio would find this useful. I've attached the updated zynq-mini-itx-adv7511.dtsi that worked for me.
Ron
RE: Zynq Mini-ITX Device Tree with ADAU1761 by larsc:
Hi,
Thanks for updated devicetree, we'll integrate this into the ADI Linux repository.
- Lars