I just received a Sabre SD board and trying to access the 8GB eMMC chip (I think it is connected on SD4).
First I notice I can't boot from the eMMC, only from the SD card slots.
When I boot on the SD card, I can't find the eMMC.
I'm pretty sure it is a small detail I have missed.
I have been trying the Linux image that was provided with the board (not sure what environment they used to build that one) and I have also tried the image I build in the Yocto environment.
But I can't see the eMMC.
My question is what device (/dev/...) I need to mount to access that chip?
When I start u-boot only I can see the eMMC chip.