UBoot no card present

[hankwang]

HI, There is a problem.  We use i.mx6UL and uboot version is 4.14.78.

when we boot the board and got below error message, how can we do for no card present and no show Ubot title

"U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g7ade5b4 (May 08 2019)"

thanks.

[ida_jiang]

Hi Hank Wang,

     I'm facing the same problem. How did you deal with the "MMC: no car support" ? Hope your help !

Best regards,

Ida

[hankwang]

Hi Ida,

      Disable the CONFIG_DM_MMC =n.

regards,

Hank

[igorpadykov]

Hi hank

one can try to debug it, check "iomux_v3_cfg_t const usdhc2_cd_pad" in

mx6ul_14x14_evk.c\mx6ul_14x14_evk\freescale\board - uboot-imx - i.MX U-Boot 

and check MMC Configs in

mx6ul_14x14_evk.h\configs\include - uboot-imx - i.MX U-Boot 

Best regards
igor
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[hankwang]

Hi, We fixed the issue. Why the uboot  no show the CPU information and Uboot version (such like below information.)?

U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g0ec2a01 (May 05 2018 - 15:16:44 +0300)

CPU:   Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)
CPU:   Industrial temperature grade (-40C to 105C) at 45C
Reset cause: POR
Board: MX6UL 14x14 EVK
I2C:   ready
DRAM:  512 MiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment

[igorpadykov]

one can debug it using uboot sources

uboot-imx - i.MX U-Boot 

Best regards
igor

[hankwang]

Hi , we had checked the  iomux_v3_cfg_t const usdhc2_cd_pad and MMC config, below is our environment. 

But we still have error message.