drivers/spi/Kconfig.dw

# DesignWare SPI driver configuration options

# Copyright (c) 2015-2016 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

config HAS_SPI_DW
	bool
	help
	  Signifies whether DesignWare SPI compatible HW is available

menuconfig SPI_DW
	bool "Designware SPI controller driver"
	depends on HAS_SPI_DW
	help
	  Enable support for Designware's SPI controllers.

if SPI_DW

config SPI_DW_ARC_AUX_REGS
	bool "Registers are part of ARC auxiliary registers"
	depends on ARC
	default y
	help
	  SPI IP block registers are part of user extended auxiliary
	  registers and thus their access is different than memory
	  mapped registers.

config SPI_DW_FIFO_DEPTH
	int "RX and TX FIFO Depth"
	help
	  Corresponds to the SSI_TX_FIFO_DEPTH and
	  SSI_RX_FIFO_DEPTH of the DesignWare Synchronous
	  Serial Interface. Depth ranges from 2-256.

config SPI_DW_ACCESS_WORD_ONLY
	bool "DesignWare SPI only allows word access"
	help
	  In some case, e.g. ARC HS Development kit, the peripheral space of
	  DesignWare SPI only allows word access, byte access will raise
	  exception.

endif # SPI_DW