i hope someone here can clear up what should be a simple question -- i'm trying to figure out what exactly is going on when building and flashing a u-boot image for my new AM1808 experimenter kit or, more accurately, someone else's modified version where the 8M of NOR flash has been replaced with 2G of NAND flash.

i've downloaded the DaVinci PSP SDK (v03.22.00.02) and i'm trying to figure out what the prebuilt u-boot images mean, and what it means to flash them.

the earlier PSP SDK used separate "ubl" and "u-boot" images, so i've seen examples of using the supplied windows-based sfh_OMAP-L138.exe utility to flash the board, in that it had to reference both binary files since, with that earlier PSP SDK, they were separate objects.

with this current SDK, the build now creates a combination image, as explained in the User's Guide:

"U-Boot included in this release will replace the UBL which was being used to copy U-Boot to external RAM."

the contents of the ready-to-flash images directory in this PSP SDK is:

u-boot-mmcsd.ais u-boot-mmcsd.bin u-boot-nand.ais u-boot-nor.bin u-boot-spi.ais

so my questions are:

1) when one "flashes" these images to the board, where exactly are they being placed? in some SPI flash of some kind totally separate from the main NOR (or, in this case, NAND) flash?

2) given that the standard NOR flash has been replaced with NAND, which (now single) u-boot image file should i be flashing? i *think*, from the user guide, it would be u-boot-nand.ais, as the command for flashing to NAND flash is given as:

..\sfh_OMAP-L138.exe -flash_noubl -flashType NAND <u-boot AIS file>

it's just not clear what command i'd use for this situation, and where that single u-boot image would end up.

rday