On Thu, 31 Jul 2008, Grant Likely wrote: > >> I'm a bit confused. The frequency of the I2C source clock and the real I2C > >> clock frequency are two different things. The first one is common for all > >> I2C devices, the second can be different. What properties would you like to > >> use for defining both? > > How is the divider controlled? Is it a fixed property of the SoC?
Usually. > a shared register setting? Sometimes. > or a register setting within the i2c device? Never. Thinking of it as the CCB divided by 1, 2, 3 isn't really right. It's just some internal clock that I2C was connected to. Sometimes it's the clock for the ethernet block of the SoC. Sometimes it comes from some other block. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
