• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 99 subscribers
  • Views 330 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PMIC voltage scaling with frequency change

ranchu
Guru 20755 points

Hello,

We are using PMIC TPS659113, with DM814x, PSP 4.1.0.2.

I would like to ask how I can verify that the PMIC changes voltage in accordance with frequency,

Do I need to enable anything in linux configuration file for this to work ?

Is there some method for validation of PMIC on this issue (validate that the software do optimization on the core voltages, in accordance with the core frequencies, in order to save power ?)

?

Thanks,

Ran

  • 0
    TI__Guru**** 170625 points

    Hi Ran,

    Ran Shalit said:
    We are using PMIC TPS659113, with DM814x, PSP 4.1.0.2.

    As you use the same PMIC as in the DM814x TI EVM (TPS659113), it should work fine with the TI PSP. Just note that the latest PSP version is recommended to be used, which is PSP 04.04.00.02.

    Refer also to the below wiki pages:

    http://processors.wiki.ti.com/index.php/Tps65911x_pmic_usage

    http://processors.wiki.ti.com/index.php/TI81XX_PSP_AVS_FAQ

    http://processors.wiki.ti.com/index.php/TI81XX_PSP_PM_AVS_Driver_User_Guide

    http://processors.wiki.ti.com/images/2/2c/DM8148_Power_sequencing_FAE_alert.pdf

    BR
    Pavel