CONFIG_CPU_SB1_PASS_2_2 is not available for the selected architecture x86.
Result is shown for architecture mips
1250 Bn
configname: CONFIG_CPU_SB1_PASS_2_2
SiByte SOC Stepping
└─>1250 Bn
In linux kernel since version 2.6.12 )
Also called BCM1250 Pass 2.2