We use a 2% down oscillator on all of our Cambria boards to minimize emissions. You could make an assumption based on the model number in the EEPROM during the late-init call, but I couldn't figure out how to make that work the way the clock freqs are defined as macros.
Tim On Fri, Oct 5, 2012 at 1:46 AM, Felix Fietkau <n...@openwrt.org> wrote: > On 2012-10-05 3:05 AM, Tim Harvey wrote: > > Spread-spectrum clock adjust support > > > > The ixp4xx can be driven from a 2% down spread-spectrum clock. Doing so > > however will cause your UART timing and system clock timing to be 2% > slow. > > This patch adds a kernel built-time configuration to adjust those clocks > > so that running on boards with a spread-spectrum clock do not show clock > drift > > or UART issues. > > > > Signed-off-by: Tim Harvey <thar...@gateworks.com> > What kind of boards have spread-spectrum clocks? Can this be detected > somehow? > > - Felix > -- Tim Harvey - Principal Software Engineer Gateworks Corporation 3026 S. Higuera St. San Luis Obispo CA 93401 805-781-2000
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