How can I set the frequency of im8mq GPU to 1 GHz

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How can I set the frequency of im8mq GPU to 1 GHz

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harry18456
Contributor II

In im8m evb board & Linux image.Seem the GPU frequency is fixed at 800 MHz.

But I check the GPU frequency can be boom up to 1000 MHz.

If don't consider overheat problem, how can I set to 1000 MHz?

Thanks.

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Liou

one can look on

i.MX8M GPU max clock 

linux-imx6/imx8mq-nitrogen8m.dts at boundary-imx_4.14.x_2.0.0_ga · boundarydevices/linux-imx6 · GitH... 

Best regards
igor
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216 Views
harry18456
Contributor II

Hi igorpadykov,

Thanks for replay!

There are some questions:

1. Only set IMX8MQ_CLK_GPU_SHADER_SRC to 1000 MHz?
    Is IMX8MQ_CLK_GPU_CORE_SRC, IMX8MQ_CLK_GPU_AXI_SRC, and IMX8MQ_CLK_GPU_AHB_SRC don't set to 1000 MHz?

2. The imx8mq datasheet say the gpu clcok if gets to 1G Hz, need 1V voltage
      Will it auto adjust voltage to 1V, or need to do some setting manually?

   
    

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