Copy EMMC data to NORFLASH or SRAM

[NP1]

1.I want to know what method we are using to copy the data EMMC device to NORFLASH or SRAM ?

2. Is there any easy method to access any external peripheral data using some custom Flash driver (Anyone can explain the logic behind it) ?Any example code which I can refer? 

[Bio_TICFSL]

Hello  Np1,

We would need some clarifications on the background of these questions. Before that I would like you to revise a few points:

1) DDR is not available during Boot

2) SD/eMMC are not memory mapped and hence direct addressing can not be used during run time by application cores. Any data required from these interfaces would need to be copied on either SRAM or DDR (if initialized by the application).

3) During run time if DDR is already initialized, the destination pointer can be set to DDR location (locations as described in the memory map sheet of RM).

4) There is no code on access Flash driver

Regards