i.MX ProcessorsのトピックLPPDDR2 support in Android O release on imx6dl

LPPDDR2 support in Android O release on imx6dl

prasannakulkarni — Mon, 14 Oct 2019 15:31:40 GMT

Hi,

We have customized board having imx6dl and lpddr2 .. i need to port Android Oreo 8.0.0_1.0.0 release on this...

1.What all files I need to change in u-boot (2017.x) to integrate lpddr2?

I have tried to change *dl*.cfg file in uboot according to our Lpddr2 timings... But it didnt work... Is there any other files i need to change...??

2. If it works in uboot, then How to handle lpddr2 power management in kernel?

Re: LPPDDR2 support in Android O release on imx6dl

igorpadykov — Tue, 15 Oct 2019 00:07:12 GMT

Hi Prasanna

one can try to port i.MX6DL lpddr2 patches to new kernels

i.MX6DL LPDDR2 Support for L3.0.35_4.0.0

using linux documentation (Linux Manual, Power Management section)

i.MX Software | NXP

Best regards
igor
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Re: LPPDDR2 support in Android O release on imx6dl

prasannakulkarni — Tue, 15 Oct 2019 10:44:21 GMT

Hi igorpadykov,

what you have mentioned is very old link goes back to 2013. many things have changed, entire source structure has been changed. Anybody have tried to port ANDROID Oreo on imx6DL having lpddr2?

(u-boot version 2017.x, Linux kernel 4.9, Android 8.0.0).

We have changed mx6dlsabresd.cfg file in u-boot which contains DCD related timings as our lpddr2 settings, but it didn't work.

Re: LPPDDR2 support in Android O release on imx6dl

igorpadykov — Tue, 15 Oct 2019 11:24:19 GMT

>Anybody have tried to port ANDROID Oreo on imx6DL having lpddr2?
>(u-boot version 2017.x, Linux kernel 4.9, Android 8.0.0).

unfortunately I am not aware of such efforts.

Best regards
igor