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AM3894 - SGX power down

Ryan Nuzzaci
Prodigy 415 points

Is the "Deep power sleep" mode the most disabled state that the SGX can be in or can it be power gated to be completely shut off?

 

 

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    TI__Guru**** 170625 points

    Hi Ryan,

    I think the most disabled state that the SGX can be in is not just Deep power sleep (all clocks gated). It can be completely shut off through the PRCM register:

    PM_SGX_PWRSTCTRL[1:0] POWERSTATE = 0x0 (OFF)

    or you can execute the following command: root@dm816x-evm:~# /etc/init.d/pvr-init stop. After executing this command, SGX is powered-off, PM_SGX_PWRSTST[1:0] POWERSTATEST is equal to 0x0 (OFF state).

    Best regards,

    Pavel