About i.MX6Q with USB & LAN PHY in deep sleep mode

[keitanagashima]

Dear All,

Hello.

I have questions about i.MX6Q in deep sleep mode.

Refer to Table 10-1. Aimed power modes in IMX6DQRM(Rev.2).

There is below description.

"Interrupts from modules those could generate asynchronous interrupts (Keypad, GPIO, SNVS)".

[Q1]

Can i.MX6 return (resume) from deep sleep mode by detection of VBUS with USB?

[Q2]

When entering a sleep-mode, does it make LAN PHY a sleep-mode, too?

(I consider that LAN PHY enters a sleep-mode because the current consumption of LAN_PHY decreased in Sleep Mode.)

Best Regards,

Keita

[igorpadykov · Accepted solution]

Hi Keita

1. yes

2. yes if used LAN PHY supports such sleep-mode, this may depend

on PHY chip.

Best regards

igor

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[keitanagashima]

Hi Igor,

Thank you for your reply.

I tried to test by below command with L3.14.28_1.0.0.

====

echo enabled > /sys/bus/platform/devices/20c9000.usbphy/power/wakeup

echo enabled > /sys/bus/platform/devices/2184000.usb/power/wakeup

echo enabled > /sys/bus/platform/devices/ci_hdrc.0/power/wakeup

echo enabled > /sys/bus/usb/devices/usb1/power/wakeup

====

And, I confirmed USB wake up.

Thank you!

Best Regards,

Keita