P2020 1.33Ghz problem

[gyosunshim]

Hi All,

P2020 1.2Ghz board is designed and used well.

On a good board, we changed the CPU to 1.33Ghz(P2020NSN2NHC) as shown below.

SYSCLK : 66.66MHz

cfg_sys_pll[0:2] : 011 (8:1) - 533MHz

cfg_core0_pll[0:2] : 101 (5:2 (2.5:1)) - 1333MHz

cfg_core1_pll[0:2] : 101 (5:2 (2.5:1)) - 1333MHz

I am using SD-Card booting but I do not see SDHC_CLK output.

I do not seem to have any problems with the settings, but I do not work.

Is there any hardware difference between 1.2GHz(P2020NSN2MHC) and 1.33GHz(P2020NSN2NHC) models?

What is more updated than P2020RM rev2? There is no content for 1.33GHz.

Thank you.
Best regards,

gyosun.

[alexander_yakov]

There is no obviously visible difference between 1200 and 1333 Mhz parts, except different clocking configuration, including platform frequency, which is used as source for all device blocks, including SD controller and DDR controller.

Please change clock settings back to ones used for 1200 Mhz part to make sure 1333 Mhz part works properly at 1200 Mhz. Please let me know the result.

Have a great day,
Alexander

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