How to output CCM_CLKO1 and CCM_CLKO2 for different frequency

[cilymo]

Hi,

    How to output CCM_CLKO1 and CCM_CLKO2 for different frequency， such as GPIO_3 for CCM_CLKO2 output 24M, GPIO_0 for CCM_CLKO1 output 32.768K ?

   And how to output CCM_CLKO1 for different frequency from different PAD? such a GPIO_0 and GPIO_19.

   My platform is imx6dl and BSP version is 4.1.15-2.0.1, hope to get help from your guys. 

[igorpadykov]

Hi cily

for clko clock generation please look at clk-imx6q.c

linux-imx.git - i.MX Linux Kernel 

and dts file imx6qdl-sabresd.dtsi, check for record

MX6QDL_PAD_GPIO_0__CCM_CLKO1

linux-imx.git - i.MX Linux Kernel 

Best regards
igor
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[cilymo]

Hi Igorpadykov:

      Thank your very much.

       But my problem is not the clock output for CCM_CLKO1. I want to know if have any method to configure CCM_CLKO1 and CCM_CLKO2 output but with different frequency. 

     I configured 

         MX6QDL_PAD_GPIO_0__CCM_CLKO1

         MX6QDL_PAD_GPIO_3__CCM_CLKO2

    and i want GPIO_0 for 24M, GPIO_3 for 12M both output. I tried many different configuration, but GPIO_0 and GPIO_3 still output the same clock.

   Thanks,

   Cily

[umit_kayacik]

Did you find a solution for GPIO_0 for clock out? Currently there is no clock on this pin even 

"MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x130b0" is declared in DTSI.