LPDDR4 settings for iMX8M

ani10c89 — Tue, 17 Sep 2019 14:11:49 GMT

Hi,

We have changed LPDDR4 part from MT53B512M32D2NP-062 WT:D to MT53D512M32D2DS-053 WT for iMX8M design.

We are getting below error log.

U-Boot SPL 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g11b4e6e (Jun 18 2019 - 08:18:38 +0000)

PMIC: PFUZE100 ID=0x10

check ddr4_pmu_train_imem code

check ddr4_pmu_train_imem code pass

check ddr4_pmu_train_dmem code

check ddr4_pmu_train_dmem code pass

Training FAILED

check ddr4_pmu_train_imem code

check ddr4_pmu_train_imem code pass

check ddr4_pmu_train_dmem code

check ddr4_pmu_train_dmem code pass

Training FAILED

Normal Boot

Trying to boot from MMC2

MMC Device 1 not found

spl: could not find mmc device. error: -19

SPL: failed to boot from all boot devices

### ERROR ### Please RESET the board ###

U-Boot SPL 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g11b4e6e (Jun 18 2019 - 08:18:38 +0000)

PMIC: PFUZE100 ID=0x10

check ddr4_pmu_train_imem code

check ddr4_pmu_train_imem code pass

check ddr4_pmu_train_dmem code

check ddr4_pmu_train_dmem code pass

Training FAILED

check ddr4_pmu_train_imem code

check ddr4_pmu_train_imem code pass

check ddr4_pmu_train_dmem code

check ddr4_pmu_train_dmem code pass

Training FAILED

Normal Boot

Trying to boot from MMC2

U-Boot SPL 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g11b4e6e (Jun 18 2019 - 08:18:38 +0000)

PMIC: PFUZE100 ID=0x10

check ddr4_pmu_train_imem code

check ddr4_pmu_train_imem code pass

check ddr4_pmu_train_dmem code

check ddr4_pmu_train_dmem code pass

Training FAILED

check ddr4_pmu_train_imem code

check ddr4_pmu_train_imem code pass

check ddr4_pmu_train_dmem code

check ddr4_pmu_train_dmem code pass

Training FAILED

Normal Boot

Trying to boot from MMC2

MMC Device 1 not found

spl: could not find mmc device. error: -19

SPL: failed to boot from all boot devices

### ERROR ### Please RESET the board ###

Can you share LPDDR4 settings with the new part as we suspect the LPDDR4 settings only.

We are trying the DDRtool in parallel for configurations but it would be helpful if you can share the settings for this as this new part is supported for iMX8M.

Regards,

Anirudha

Re: LPDDR4 settings for iMX8M

igorpadykov — Tue, 17 Sep 2019 23:24:21 GMT

Hi Anirudha

for new board or memory it is necessary to follow steps described in

Chapter 4 How to bring up a new MX8MSCALE board MSCALE_DDR_Tool_User_Guide.pdf

included in package

i.MX8 MSCALE SERIES DDR Tool Release (V2.10)

use latest uboot

imx8mq_evk\freescale\board - uboot-imx - i.MX U-Boot

Best regards
igor
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Re: LPDDR4 settings for iMX8M

ani10c89 — Fri, 20 Sep 2019 16:45:46 GMT

Hi,

Thanks for response.

Can you please confirm if MT53D1024M32D4DT-053 WT:D is tested with iMX8M and the quad die is not issue.

Regards,

Anirudha

Re: LPDDR4 settings for iMX8M

igorpadykov — Fri, 20 Sep 2019 23:31:16 GMT

yes it is recommended for usage:

Best regards
igor

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