AM623: U-boot: change CPU Clock

Gireesh Hiremath

Intellectual 425 points

Part Number: AM623

Hi,

How to change the clock of CPU in u-boot ?

how to generate arch/arm/mach-k3/am62x/clk-data.c of u-boot source ?

Thanks,

Gireesh

over 2 years ago

0 Bin Liu over 2 years ago

TI__Guru**** 177071 points

Hi Gireesh,

Our U-Boot expert is out of office today. Please expect delayed response.

0 Gireesh Hiremath over 2 years ago in reply to Bin Liu

Intellectual 425 points

Hi, Any update?

+1 Andreas Dannenberg over 2 years ago in reply to Gireesh Hiremath

TI__Guru 70462 points

Gireesh Hiremath said:
How to change the clock of CPU in u-boot ?

There's multiple CPUs involved here so there's not a single answer. What's your goal, what are you trying to achieve? In most cases this can be achieved by updating the device tree files.

Gireesh Hiremath said:
how to generate arch/arm/mach-k3/am62x/clk-data.c of u-boot source ?

This should not need to get re-generated unless you want to add support for additional "TISCI devices" so you can access them from U-Boot SPL on the R5 core (a.k.a., "tiboot3.,bin), which is a rather rare usecase.

Regards, Andreas

0 Gireesh Hiremath over 2 years ago in reply to Andreas Dannenberg

Intellectual 425 points

Thanks, I will check.

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AM623: U-boot: change CPU Clock