CONFIG_MACH_REALVIEW_PBA8 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Support RealView(R) Platform Baseboard for Cortex(tm)-A8 platform
configname: CONFIG_MACH_REALVIEW_PBA8
Linux Kernel Configuration
└─>ARM Ltd. RealView family
└─>Support RealView(R) Platform Baseboard for Cortex(tm)-A8 platform
In linux kernel since version 2.6.29 (release Date: 2009-03-23)
Include support for the ARM(R) RealView Platform Baseboard for
Cortex(tm)-A8. This platform has an on-board Cortex-A8 and has
support for PCI-E and Compact Flash.
Cortex(tm)-A8. This platform has an on-board Cortex-A8 and has
support for PCI-E and Compact Flash.