Nuvoton WPCM450 Flash Interface Unit

modulename: spi-wpcm-fiu.ko

configname: CONFIG_SPI_WPCM_FIU

Linux Kernel Configuration
└─>Device Drivers
└─>SPI support
└─>Nuvoton WPCM450 Flash Interface Unit
In linux kernel since version 6.2 (release Date: 2023-02-19)  
This enables support got the Flash Interface Unit SPI controller
present in the Nuvoton WPCM450 SoC.

This driver does not support generic SPI. The implementation only
supports the spi-mem interface.

source code:
selects
CONFIG_REGMAP

depends
CONFIG_SPI
CONFIG_SPI_MASTER
CONFIG_ARCH_NPCM or CONFIG_COMPILE_TEST