This document explains how to burn into target flash the binary files needed to boot the target board with u-boot and/or Linux from a released Digital Networking SDK.
Start by identifying the SDK from which to extract the u-boot and Linux binaries. SDK (and other BSP) files are archived here: http://linux.freescale.net/labDownload2/viewDownloads.php
Enter "SDK" as your Filter Text to see only the SDK files.
Pick the SDK that you want, and note the .iso files with -IMAGE- in the filenames, organized by processor cores. For example, T4240 uses the e6500 core, so the IMAGE file with 64-bit binaries from SDK 1.7 would be QorIQ-SDK-V1.7-PPC64E6500-IMAGE-20141218-yocto.iso. T1040 would use QorIQ-SDK-V1.7-PPCE5500-IMAGE-20141218-yocto.iso for 32-bit binaries, P1010 would use QorIQ-SDK-V1.7-PPCE500V2-IMAGE-20141218-yocto.iso, and so on. Click on the -IMAGE- file you want and open it as a WinZIP file.
The contents of each -IMAGE- .iso file are organized by specific target boards, so expand the WinZIP folder for the board you're using and you'll see the full list of all the files generated by that SDK for your board. For example, 1.7 SDK for P2020-RDB (E500V2) would look like this:
Next, refer to the Infocenter Boards page for details on what files need to go where. Expand the link for your board and click on the Flash Bank Usage link for the board you're using for board-specific details.
Finally, refer to the Infocenter's System Recovery chapter for instructions on how to do the flash programming. The two methods described are: use u-boot to download and program each file; or use the CodeWarrior Flash Programmer to do the same. Both methods work, so use whichever method is easier.
ALTERNATIVE: If you want a fully-loaded Linux system on your target board but you'd rather not have to individually flash a half-dozen files (while perhaps getting one or more of them wrong), most boards have complete, composite binary files in their -IMAGE- .iso archives. Look in your mounted .iso file for the flash-image folder and you should see a list of files that look similar to this:
Each of these _NOR_Flash.bin files includes everything from the RCW to the Linux kernel for the boards noted in their file names. Program each file to the beginning address of the noted flash type (NAND, NOR, etc.) For example, on T4240-QDS, the beginning address of NOR is 0xE8000000, so program QorIQ_SDK_V1.7_T4240QDS-64B_20141218_NOR_Flash.bin to 0xE8000000.
The advantage of this method is that you don't have to program multiple binary files, perhaps picking the wrong file or programming it to the wrong address. The primary disadvantage is that this method takes a looooooong time since these _Flash.bin files are so large. Also, you don't get to customize the configuration until after the file has been flashed and the board is up and running.