Other Parts Discussed in Thread: OMAPL138
Hi,
We are working on OMAPL138 with linux 2.6.33 arago.
Currently when loading ahci kernel driver the power consumption is increasing by 660mW. (SATA phy is enabled by kernel)
However unloading it it doesn't restore it's power consumption to it's initial value.
Hacking a little we managed to call ahci_plat_remove in ahci-ti.c.
ahci-plat_remove does write 1 in SATACLK_PWRDN bit of PWRDN register.
(sprugm7d SYSCFG userguide page 235).
Doing so, the power consumption decreased by 440mW.
Still we have 220mW somewhere.
Does anyone got an idea where the remaining mW are still going?
Regards,
Pep