[PATCH v5 1/2] davinci: am18x/da850/omap-l138: add support for higher speed grades

Kevin Hilman khilman at deeprootsystems.com
Wed Dec 22 14:46:04 EST 2010

Sekhar Nori <nsekhar at ti.com> writes:

> AM18x/DA850/OMAP-L138 SoCs have variants that can operate
> at a maximum of 456 MHz at 1.3V operating point. Also the
> 1.2V operating point has a variant that can support a maximum
> of 375 MHz.
> This patch adds three new OPPs (456 MHz, 408 MHz and 372 MHz)
> to the list of DA850 OPPs.
> Not all silicon is qualified to run at higher speeds and
> unfortunately the maximum speed the chip can support can only
> be determined from the label on the package (not software
> readable).
> Because of this, we depend on the maximum speed grade information
> to be provided to us in some board specific way. The board informs
> the maximum speed grade information by setting the da850_max_speed
> variable.
> Signed-off-by: Sekhar Nori <nsekhar at ti.com>
> ---
> Since v4, the patch decription has been updated to match the code.
> No code change has been made.

Thanks, I updated davinci-next branch with these versions.  Queuing for


More information about the linux-arm-kernel mailing list