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MMC: no card present  mmc0(part 0) is current device MMC: no card present

Question asked by zhang meiyu on Mar 30, 2018
Latest reply on Apr 2, 2018 by igorpadykov

hello,

 

 

when i try to boot from mmc , it occurred some mistakes

 

the board i uesd is imx6q sabrelite          ubuntu 14.04 

 

U-Boot(NT) 2014.04-07848-g4dfca88-dirty (Mar 28 2018 - 22:05:17)

CPU: Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: unknown reset
Board: SABRE Lite
I2C: ready
DRAM: 1008 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
MMC: no card present
MMC init failed
Using default environment

No panel detected: default to HDMI
Display: HDMI (1024x768)
In: serial
Out: serial
Err: serial
Net: using phy at 7
FEC [PRIME], usb_ether
Hit any key to stop autoboot: 0
MMC: no card present
mmc0(part 0) is current device
MMC: no card present
Booting from net ...
FEC Waiting for PHY auto negotiation to complete......... TIMEOUT !
BOOTP broadcast 1

 

 

and when i try to modified de uboot environment,it showed as follwed,

 

U-Boot(NT) 2014.04-07848-g4dfca88-dirty (Mar 28 2018 - 22:05:17)

CPU: Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: unknown reset
Board: SABRE Lite
I2C: ready
DRAM: 1008 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
MMC: no card present
MMC init failed
Using default environment

No panel detected: default to HDMI
Display: HDMI (1024x768)
In: serial
Out: serial
Err: serial
Net: using phy at 7
FEC [PRIME], usb_ether
Hit any key to stop autoboot: 0
U-Boot > saveenv
Saving Environment to MMC...
MMC: no card present
MMC init failed
U-Boot >

 

it seems that it can't detected the SD card ,but i inserted SD card and the previous steps can read the content of SD card,so ,what should I do with this ?

Thanks in advance. 

 

zmy

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