On 7/31/08, Grant Likely <[EMAIL PROTECTED]> wrote: > On Thu, Jul 31, 2008 at 03:37:07PM -0500, Timur Tabi wrote: > > Grant Likely wrote: > > > > > How is the divider controlled? Is it a fixed property of the SoC? > > > > Yes. The divider is either 1, 2, or 3, and the only way to know which one > > it is is to look up the specific SOC model number. And depending on the > > SOC model, there may also be a register that needs to be looked up. > > > > > a > > > shared register setting? or a register setting within the i2c device? > > > > The I2C device itself has no idea what the divider is. It only sees the > > result of the divider. > > > Then that absolutely suggests to me that either the final clock or the > divider should be encoded in the i2c node; not in the soc node.
Isn't there a single global divider that generates all the i2c source clocks? You don't want to copy a global value into each i2c node. Aren't we talking about the /2 or /3 or /1 divider that appears to be randomly implemented on various members of the mpc8xxx family? > > > g. > -- Jon Smirl [EMAIL PROTECTED] _______________________________________________ i2c mailing list i2c@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/i2c
