imx: PWM module on mx35
Radoslav Kolev
radoslav.kolev at rnd.bg
Fri Oct 22 06:13:59 EDT 2010
On Thu, 2010-10-21 at 23:10 -0200, Fabio Estevam wrote:
> Hi Radoslav,
>
> On Thu, Oct 21, 2010 at 8:30 PM, Radoslav Kolev <radoslav.kolev at rnd.bg> wrote:
> > Hello,
> >
> > I am trying to use the PWM module on a Freescale MX35 SOC but all writes
> > to the PWM module registers seem to be ignored.
> >
> > I have found two issues reported as fixed in the changelog of
> > Freescales's Linux BSP for the i.MX31ADS (with similar PWM module) at
> > http://www.freescale.com/files/soft_dev_tools/doc/support_info/BSPIMX31ADSLTIB__RN.txt
> >
> > 851 Unable to write to PWM registers
> > 1438 Cannot write to PWM registers
>
> These patches fixed the MXC_CCM_CGR1 offset for the pwm_clk in the
> Freescale kernel.
>
> Another thing that was needed was to enable the PWM clock.
>
> Please try the patch below.
>
Thanks, Fabio!
That solved the register writing problem.
Regards,
Radoslav Kolev
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