Hi Team,
We have Development Boards & Kits - ARM 8MMINID4-EVK , we are using Android image .
Our requirement is when user give reboot -p / Shutdown , Device should not going in shutdown mode its start rebooting only ( if board have power ) . so use case is if power off then and then device shutdown other wise it always in on condition .
Hi nikunj
on 8MMINID4-EVK schematic SPF-35104 p.12 power off and reboot are controlled
by PMIC_ON_REQ and WDOG_B signals
So one can try to change them in power drivers.
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
can you please elaborate more on power drivers change .
are you talking about software change ???
Hi igor ,
More clarification on this .
We don't have any control on hardware Buttons , so we have to do in software timers . as i am going through "IMX8MMRM" user manual , it shows that using below steps we can "OFF to ON, by timer
alarm"
1. Timer alarm in SNVS is programmed by software before SoC goes OFF.
2. SoC enters OFF mode.
3. Upon timer limit, wake up alarm goes '0'. PMIC_ON_REQ goes '1'.
4. External regulator is enabled by PMIC_ON_REQ = 1.
can u have any idea regarding timer alarm or alarm_mask / wake up alarm , how they can configure in software ?
is there any steps for doing this
Thank you for your support
Nikunj
for software changes one can consider for example
imx-snvs-poweroff.c\reset\power\drivers - linux-imx - i.MX Linux kernel
>can u have any idea regarding timer alarm or alarm_mask / wake up alarm , how they can configure in software ?
rtcwakeup.c\mxc_rtc\test - imx-test - i.MX Driver Test Application Software
Best regards
igor
Hi Igor,
we perform changes in power drive as suggested by you below are the test scenario we perform,
Hi nikunj
these changes may be not so simple and they do not follow standard usage
of these signals. For such kind of development may be suggested to proceed with help of
Professional Engineering Services | NXP
Best regards
igor
Ok Thank you for your support