4fb8bf61c0
In some hardware,e.g. ARC HS Development kit,the peripheral space of ns16550 only allowes WORD access, byte acess will raise bus error. This commit adds support for this case Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
108 lines
2.7 KiB
Plaintext
108 lines
2.7 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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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 && UART_NS16550
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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 && UART_NS16550
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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 64-bytes FIFO for UART 16750"
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depends on UART_NS16550
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help
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This enables support for 64-bytes FIFO 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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default n
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depends on UART_NS16550
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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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# ---------- Port 0 ----------
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menuconfig UART_NS16550_PORT_0
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bool "Enable NS16550 Port 0"
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depends on UART_NS16550
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help
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This tells the driver to configure the UART port at boot, depending on
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the additional configure options below.
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config UART_NS16550_PORT_0_OPTIONS
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int "Port 0 Options"
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default 0
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depends on UART_NS16550_PORT_0
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help
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Options used for port initialization.
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# ---------- Port 1 ----------
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menuconfig UART_NS16550_PORT_1
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bool "Enable NS16550 Port 1"
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depends on UART_NS16550
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help
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This tells the driver to configure the UART port at boot, depending on
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the additional configure options below.
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config UART_NS16550_PORT_1_OPTIONS
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int "Port 1 Options"
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default 0
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depends on UART_NS16550_PORT_1
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help
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Options used for port initialization.
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# ---------- Port 2 ----------
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menuconfig UART_NS16550_PORT_2
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bool "Enable NS16550 Port 2"
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depends on UART_NS16550
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help
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This tells the driver to configure the UART port at boot, depending on
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the additional configure options below.
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config UART_NS16550_PORT_2_OPTIONS
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int "Port 2 Options"
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default 0
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depends on UART_NS16550_PORT_2
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help
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Options used for port initialization.
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# ---------- Port 3 ----------
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menuconfig UART_NS16550_PORT_3
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bool "Enable NS16550 Port 3"
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depends on UART_NS16550
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help
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This tells the driver to configure the UART port at boot, depending on
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the additional configure options below.
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config UART_NS16550_PORT_3_OPTIONS
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int "Port 3 Options"
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default 0
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depends on UART_NS16550_PORT_3
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help
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Options used for port initialization.
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