[U-Boot] [PATCH 2/2] fsl_i2c: Add CONFIG_FSL_I2C_CUSTOM_DFSR

Joakim Tjernlund joakim.tjernlund at transmode.se
Tue Sep 15 20:57:36 CEST 2009


>
> Joakim Tjernlund wrote:
> > Some boards need a higher DFSR value than the spec currently
> > recommends so give these boards the means to define there own.
>

Wow, that was fast :)

> If you're going to do this, then you need to also define
> CONFIG_FSL_I2C_CUSTOM_FSR and CONFIG_FSL_I2C_CUSTOM_SPEED, and disable the
> code that lets you change the speed.  Otherwise, the code will have no idea
> what speed the bus is really running at.

No, the impact on speed from DFSR is pretty small so it will
be close enough. It will only complicate matters for the user I think.

 Jocke



More information about the U-Boot mailing list