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SGX530 usage

1330hayacool7102
Guru 10655 points

hi TI friends,

 how to turn off SGX530 if not using?

I just found the following in sprugx8.pdf but nothing in sprs614d.pdf

5-4  STANDBY_MODE Clock standby mode.
      0 Force Standby mode.
      1h No Standby mode.
      2h Smart Standby mode.
      3h Smart Standby mode.
3-2 IDLE_MODE Clock Idle mode.
      0 Force Idle mode.
      1h No idle mode.
      2h Smart Idle mode.
      3h Smart Idle mode.

but these're not our desire.

Any idea?

  • 0
    Genius 3700 points

    Hi,

         I suppose that it is disabled by default since one of the scripts installed by the graphics SDK (targetfs/38xx-demo) tries to enable the SGX with the following commands:

    RM_SGX_RSTCTRL=0x48180F04
    CM_SGX_CLKSTCTRL=0x48180900
    CM_SGX_SGX_CLKCTRL=0x48180920

    /etc/init.d/devmem2 $RM_SGX_RSTCTRL w 0x0 >/dev/null # Bring SGX out of reset
    /etc/init.d/devmem2 $CM_SGX_CLKSTCTRL w 0x2 >/dev/null # Enable the SGX clocks
    /etc/init.d/devmem2 $CM_SGX_SGX_CLKCTRL w 0x2 >/dev/null # Bring SGX out of idle

    -David