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# SPDX-License-Identifier: Apache-2.0
menuconfig UART_NS16550
bool "NS16550 serial driver"
select SERIAL_HAS_DRIVER
select SERIAL_SUPPORT_INTERRUPT
help
This option enables the NS16550 serial driver.
This driver can be used for the serial hardware
available on x86 boards.
if UART_NS16550
config UART_NS16550_LINE_CTRL
bool "Enable Serial Line Control for Apps"
depends on UART_LINE_CTRL
help
This enables the API for apps to control the serial line,
such as CTS and RTS.
Says n if not sure.
config UART_NS16550_DRV_CMD
bool "Enable Driver Commands"
depends on UART_DRV_CMD
help
This enables the API for apps to send commands to driver.
Says n if not sure.
config UART_NS16750
bool "Enable UART 16750 (64-bytes FIFO and auto flow control)"
help
This enables support for 64-bytes FIFO and automatic hardware
flow control if UART controller is 16750.
config UART_NS16550_ACCESS_WORD_ONLY
bool "NS16550 only allows word access"
help
In some case, e.g. ARC HS Development kit, the peripheral space of ns
16550 (DesignWare UART) only allows word access, byte access will raise
exception.
endif # UART_NS16550