CONFIG_MPC8641_HPCN is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
Freescale MPC8641 HPCN
modulename: mpc86xx_hpcn.ko
configname: CONFIG_MPC8641_HPCN
Linux Kernel Configuration
└─>Freescale MPC8641 HPCN
In linux kernel since version 2.6.18 (release Date: 2006-09-19)
This option enables support for the MPC8641 HPCN board.