R-Car M1A (R8A77781)

modulename: setup-r8a7778.ko

configname: CONFIG_ARCH_R8A7778

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>R-Car M1A (R8A77781)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
arch/arm/mach-shmobile/setup-r8a7778.c