CONFIG_SCB1_MI0 is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_SCB1_MI0.
Result is shown for kernelversion 6.7-rc3

SCB1 Master Interface 0

configname: CONFIG_SCB1_MI0

Linux Kernel Configuration
└─>BF609 Specific Configuration
└─>SCB1 Master Interface 0
In linux kernel since version 3.12 (release Date: 2013-11-03)  
The slave interface id of each slot should be set according following table.
SPORT0A -- 0
SPORT0B -- 1
SPORT1A -- 2
SPORT1B -- 3
SPORT2A -- 4
SPORT2B -- 5
SPI0TX -- 6
SPI0RX -- 7
SPI1TX -- 8
SPI1RX -- 9