CONFIG_PPC_CHRP is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
Common Hardware Reference Platform (CHRP) based machines
configname: CONFIG_PPC_CHRP
Linux/PowerPC Kernel Configuration
└─>Platform support
└─>Common Hardware Reference Platform (CHRP) based machines
In linux kernel since version 2.6.15 (release Date: 2006-01-02)
selects
CONFIG_MPICCONFIG_PPC_I8259
CONFIG_PPC_INDIRECT_PCI
CONFIG_PPC_RTAS
CONFIG_PPC_MPC106
CONFIG_PPC_UDBG_16550
CONFIG_HAVE_PCSPKR_PLATFORM
CONFIG_PPC_RTAS_DAEMON
CONFIG_RTAS_ERROR_LOGGING
CONFIG_PPC_NATIVE
CONFIG_PCI