NXP offers CodeWarrior 8.8 and CodeWarrior TAP for software developing, debugging and Flash programming on the MPC8548 boards:
https://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=CWX-ARCHT-EX
Evaluation version of this CodeWarrior provides full functionality during one month.
Use CodeWarrior 8.8 and CodeWarrior TAP for u-boot burning on your board.
Lauterbach and TRACE32 also can be used for u-boot burning on the MPC8548 board.
See also "Debuggers and Runtime Analysis" on the following page:
Have a great day,
Pavel Chubakov
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