topic Re: imx6sll pm wakeup source ttymxc1 in i.MX Processors

imx6sll pm wakeup source ttymxc1

ilyyxfe — Tue, 25 Dec 2018 05:48:55 GMT

hello to who it may concerned

I use my customized board, and configure the uart2

it can work normally

and i hope it can be the wakeup source for the low power mode.

i set the echo enabled > wakeup for ttymxc1

but it does not work

(if i set the ttymxc0,it can wake up the system)

i check the i.MX 6SLL Applications Processor Reference Manual

it seemed it can only work in the debug uart(ttymxc0)

is it right?

if i want use uart2(ttymxc1),is there a solution for it ?

looking forward your reply.

best regards

zhang

Re: imx6sll pm wakeup source ttymxc1

ilyyxfe — Fri, 28 Dec 2018 05:31:44 GMT

i enabled the ttymxc0 and ttymxc1, both of them can wakeup the system.

if ttymxc0 disabled, ttymxc1 can not wake up the sys/

Re: imx6sll pm wakeup source ttymxc1

igorpadykov — Sat, 29 Dec 2018 11:25:00 GMT

Hi zhang

uart wake up procedure is described in sect.21.1.5 Unit Test

attached Linux Manual. Example of dts uart settings:

linux/arch/arm/boot/dts/imx6sll.dtsi

imx6sll.dtsi\dts\boot\arm\arch - linux-imx - i.MX Linux kernel

Best regards
igor
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