NXP offers LTIB Linux BSP for the Lite5200B board:
https://www.nxp.com/lgfiles/bsps/mpc5200_lite5200b_20070203_ltib-rc4.iso
This BSP contains u-boot for the MPC5200B and toolchain.
This BSP was tested under Ubintu 10.
Have a great day,
Pavel Chubakov
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