Hi Nagendra, > Hi All, > > We are working on Power management on OMAP3 (3530) and I am trying to > disable CLKEN and HFCLKOUT through TWL4030 power scripts. However we have > not been able to achieve this. > > Following are the changes and tests done so far. > > - VAUX1, CLKEN and HFCLKOUT were assigned to P1 group. > - Wrote Singular messages to turn on/off these signals in TWL4030 scripts. > - We observed that VAUX1 is able to switch ON/OFF properly as per the script > but HFCLKOUT and CLKEN are not behaving as expected. > - However if we try writing CLKEN_DEV_GRP to zero, CLKEN is going low. > - We have made sure that SYS_OFF_MODE and CLK_REQ signals go low during the > system OFF mode, LVL_WAKEUP bit enabled in Px_SW_EVENTS, and STS_CHG bit in > STS_HW_CONDITIONS is zero. > > Is there anything that I am missing? Kindly let me know.
Did try probing the sys_clkreq from OMAP? Are you sending SLEEP/OFF command in singular msg? Also check the HFCLKOUT_REMAP register for SLEEP_STATE[3:0], if using SLEEP cmd. Regards, Lesly A M > > Part number of TPS used in our board is TPS65950 BZXNR > > with regards, > - Nagendra. > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
