topic Re: Issue in booting from SD card in i.MX Processors

Issue in booting from SD card

rineet_kv — Wed, 10 Oct 2018 13:05:13 GMT

Hi,

We are using IMX 6UL with boot device as SD card. Getting following error.

mmc_init: -110, time 1450
*** Warning - MMC init failed, using default environment

Same SD card is working with the EVK board. I have pasted the logs below.

U-Boot 2017.03-nxp/imx_v2017.03_4.9.11_1.0.0_ga+ga2fea67 (Aug 24 2018 - 12:43:48 +0530)

CPU:   Freescale i.MX6UL rev1.2 528 MHz (running at 396 MHz)
CPU:   Commercial temperature grade (0C to 95C) at 39C
Reset cause: POR
Model: Freescale i.MX6 UltraLite 14x14 EVK Board
Board: MX6UL 14x14 EVK
DRAM: 512 MiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
mmc_init: -110, time 1450
*** Warning - MMC init failed, using default environment

Display: TFT43AB (480x272)
Video: 480x272x24
In:    serial
Out:   serial
Err:   serial
mmc_init: -110, time 1450
Net:   No ethernet found.
Normal Boot
Hit any key to stop autoboot: 0
mmc_init: -110, time 1450
mmc_init: -110, time 1450
MMC: no card present
mmc_init: -123, time 2
Booting from net ...
No ethernet found.
No ethernet found.
Bad Linux ARM zImage magic!

Regards,

Rineet

Re: Issue in booting from SD card

igorpadykov — Thu, 11 Oct 2018 11:03:56 GMT

Hi Rineet

SD card which is working with the EVK board has ddr settings for EVK board,

which may not work on custom board. Uboot for custom board should be rebuilt

with new ddr calibration settings found from ddr test, put them in uboot/../mx6ul_14x14_evk/imximage.cfg

https://community.nxp.com/docs/DOC-105652

Best regards
igor
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Re: Issue in booting from SD card

rineet_kv — Fri, 12 Oct 2018 15:26:17 GMT

Hi Igor,

we have rebuilt the UBOOT . It is working now. Thanks for your support

Regards,

Rineet