4fa0a9b4b2
Instead of having a hard-coded maximum instance count, introduce a Kconfig variable for it. The inclusion of the per-instance header files is solved by having them chain-include each other with a pre-processor condition that checks if the current header file is the last one or not. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
# SPDX-License-Identifier: Apache-2.0
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menuconfig UART_NS16550
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bool "NS16550 serial driver"
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select SERIAL_HAS_DRIVER
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select SERIAL_SUPPORT_INTERRUPT
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help
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This option enables the NS16550 serial driver.
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This driver can be used for the serial hardware
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available on x86 boards.
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if UART_NS16550
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config UART_NS16550_MAX_INSTANCES
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int "Maximum number of supported driver instances"
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range 1 32
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default 4
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help
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The maximum number of supported driver instances in device tree.
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config UART_NS16550_LINE_CTRL
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bool "Enable Serial Line Control for Apps"
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depends on UART_LINE_CTRL
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help
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This enables the API for apps to control the serial line,
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such as CTS and RTS.
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Says n if not sure.
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config UART_NS16550_DRV_CMD
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bool "Enable Driver Commands"
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depends on UART_DRV_CMD
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help
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This enables the API for apps to send commands to driver.
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Says n if not sure.
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config UART_NS16750
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bool "Enable UART 16750 (64-bytes FIFO and auto flow control)"
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help
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This enables support for 64-bytes FIFO and automatic hardware
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flow control if UART controller is 16750.
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config UART_NS16550_ACCESS_WORD_ONLY
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bool "NS16550 only allows word access"
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help
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In some case, e.g. ARC HS Development kit, the peripheral space of ns
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16550 (DesignWare UART) only allows word access, byte access will raise
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exception.
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endif # UART_NS16550
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