CONFIG_CPU_MIPS32_R2 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
MIPS32 Release 2
configname: CONFIG_CPU_MIPS32_R2
CPU type
└─>MIPS32 Release 2
In linux kernel since version 2.6.15 (release Date: 2006-01-02)
Choose this option to build a kernel for release 2 or later of the
MIPS32 architecture. Most modern embedded systems with a 32-bit
MIPS processor are based on a MIPS32 processor. If you know the
specific type of processor in your system, choose those that one
otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
MIPS32 architecture. Most modern embedded systems with a 32-bit
MIPS processor are based on a MIPS32 processor. If you know the
specific type of processor in your system, choose those that one
otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.