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Overclock DM8168 ARM and HDVICP clocks.

Hi,

I want to get maximum performance out of DM8168 processor, hence as a part of that would like to increase DDR, ARM and HDVICP clock rate for DM8168. I understand  that can be done by modifying PLL configuration from u-boot.

If would be really helpful if someone has already done that and can share the PLL configurations. My current clocks are default as provided in EZSDK Release-5_03_01_15.

ARM clk: 987MHz
DDR clk: 796MHz
HDVICP clk: Don't know how to check that

Regards,
Krunal

  • Hi Krunal,

    You can refer section "1.11.3 Flying Adder PLL" in DM8168 TRM for configuring the PLL, make sue that you are not exceeding the supported values.

    Look at the u-boot code for better understanding the PLL configuration (main_pll_init_ti816x() API in <u-boot source>/board/ti/ti8168/evm.c file)

    Regards

    AnilKumar

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