Support for Sawtooth (New G4) Motherboards

Benjamin Herrenschmidt bh40 at calva.net
Tue Oct 19 04:00:44 EST 1999


On Mon, Oct 18, 1999, Geert Uytterhoeven <geert at linux-m68k.org> wrote:

>> Finally, there is the sound, which is on an i2s bus. I don't know how
>> such a bus looks like, and so I don't know if I'll be able to make a
>> driver for this one, at least not immediately.
>
>i2s? Not i2c?

Yes, I2S. There's also a couple of I2C busses (one in the northbridge,
probably for the SDRAM config, the other one in the mac-io chip). 

This part of the device tree looks like that:

pci/mac-io
    ...
    /i2c
        /i2c-cereal
    /i2s
        /i2s-a
            /sound
        /i2s-b
    ...


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