10-21-2017, 09:09 AM
Hi,
I'm having trouble following this tutorial but I'm not sure whether the eMMC module I have is working at all.
There is no problem interrupting the boot with the serial console (CP2102 at 1.5M baud). I can then remove the jumper but even if I do, the booted OS does NOT see the eMMC device in fdisk -l output.
Relevant output from my serial console:
So it seems that it does not see the eMMC device 0 and afterwards in Linux I only get /dev/mmc0 which is the SD card.
I also tried booting without any jumper, which should give the (uninitialized) eMMC priority, but even then my Rock64 boots from the SD card.
Any clue or should I try an RMA ?
Regards,
Fritti
I'm having trouble following this tutorial but I'm not sure whether the eMMC module I have is working at all.
There is no problem interrupting the boot with the serial console (CP2102 at 1.5M baud). I can then remove the jumper but even if I do, the booted OS does NOT see the eMMC device in fdisk -l output.
Relevant output from my serial console:
Code:
Hit any key to stop autoboot: 0
=> boot
Card did not respond to voltage select!
mmc_init: -95, time 12
MMC Device 0 not found
no mmc device at slot 0
switch to partitions #0, OK
mmc1 is current device
Scanning mmc 1:6...
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.confSo it seems that it does not see the eMMC device 0 and afterwards in Linux I only get /dev/mmc0 which is the SD card.
I also tried booting without any jumper, which should give the (uninitialized) eMMC priority, but even then my Rock64 boots from the SD card.
Any clue or should I try an RMA ?
Regards,
Fritti
