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Last Post 29 Nov 2010 10:46 PM by  pgriep
OMAP-L138 Power Management support
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pgriep
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29 Nov 2010 10:46 PM
    We are using the LogicPD OMAP-L138 EVM Development kit for a new project.
    One of the primary requirement for this project is to be able to put the system to deep sleep mode.

    I have done some research through the TI support websites and determined that using the current Linux PSP (linux-2.6.33-rc4-psp03.20.00.13) I can put the system to sleep using the command rtcwake or configure the scaling governor to "powersave" mode. (http://processors.wiki.ti...Linux_Drivers_Usage)

    However, even after performing these actions I still see that a lot of the devices in the OMAP-L138 SOM (i.e. SDRAM, Ethernet, SATA clock generator, Processor PLL, Processor SATA) did not really go to sleep. The only major change in current consumption we observe is in the Processor Core where at active mode it was consuming 120mA then in sleep mode it's consuming only 4mA.

    Did somebody already tried to put the other devices to sleep and can you share any link or references that you've used to do this?

    Please advise.

    Regards,
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