Renesas RPC-IF driver

modulename: renesas-rpc-if.ko

configname: CONFIG_RENESAS_RPCIF

Linux Kernel Configuration
└─>Device Drivers
└─>Memory Controller drivers
└─>Renesas RPC-IF driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This supports Renesas R-Car Gen3 RPC-IF which provides either SPI
host or HyperFlash. You'll have to select individual components
under the corresponding menu.

source code:
drivers/memory/renesas-rpc-if.c

depends
CONFIG_MEMORY
CONFIG_ARCH_RENESAS or CONFIG_COMPILE_TEST