8a824356e0
Add support for getting some basic params from the DTS for the UART. The ns16550 driver still needs to be updated to get IRQ and address info from DTS. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
170 lines
3.9 KiB
Plaintext
170 lines
3.9 KiB
Plaintext
menuconfig UART_NS16550
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bool "NS16550 serial driver"
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default n
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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_PCI
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bool "Enable PCI Support"
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default n
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depends on PCI && UART_NS16550
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help
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This enables NS16550 to probe for PCI-based serial devices.
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This option enables the driver to auto-detect the device
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configuration required to access those ports.
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config UART_NS16550_DLF
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bool "Enable Divisor Latch Fraction (DLF) support"
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default n
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depends on UART_NS16550
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help
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This enables support for divisor latch fraction (DLF).
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It is used to limit frequency error.
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Says n if you are not sure if hardware supports this.
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config UART_NS16550_LINE_CTRL
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bool "Enable Serial Line Control for Apps"
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default n
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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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default n
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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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default n
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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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# ---------- Port 0 ----------
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menuconfig UART_NS16550_PORT_0
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bool "Enable NS16550 Port 0"
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default n
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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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if !HAS_DTS
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config UART_NS16550_PORT_0_NAME
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string "Port 0 Device Name"
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default "UART_0"
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depends on UART_NS16550_PORT_0
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help
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This is the device name for UART, and is included in the device
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struct.
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endif
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if !HAS_DTS && !ARC
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config UART_NS16550_PORT_0_IRQ_PRI
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int "Port 0 Interrupt Priority"
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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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The interrupt priority for UART port.
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endif
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if !HAS_DTS
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config UART_NS16550_PORT_0_BAUD_RATE
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int "Port 0 Baud Rate"
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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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The baud rate for UART port to be set to at boot.
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Leave at 0 to skip initialization.
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endif
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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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config UART_NS16550_PORT_0_DLF
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hex "Port 0 DLF value"
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default 0x0
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depends on UART_NS16550_PORT_0 && UART_NS16550_DLF
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help
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Value for DLF register.
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config UART_NS16550_PORT_0_PCI
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bool "Port 0 is PCI-based"
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default n
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depends on UART_NS16550_PCI && UART_NS16550_PORT_0
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help
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Obtain port information from PCI.
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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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default n
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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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if !HAS_DTS
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config UART_NS16550_PORT_1_NAME
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string "Port 1 Device Name"
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default "UART_1"
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depends on UART_NS16550_PORT_1
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help
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This is the device name for UART, and is included in the device
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struct.
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endif
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if !HAS_DTS && !ARC
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config UART_NS16550_PORT_1_IRQ_PRI
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int "Port 1 Interrupt Priority"
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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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The interrupt priority for UART port.
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endif
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if !HAS_DTS
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config UART_NS16550_PORT_1_BAUD_RATE
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int "Port 1 Baud Rate"
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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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The baud rate for UART port to be set to at boot.
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Leave at 0 to skip initialization.
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endif
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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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config UART_NS16550_PORT_1_DLF
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hex "Port 1 DLF value"
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default 0x0
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depends on UART_NS16550_PORT_1 && UART_NS16550_DLF
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help
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Value for DLF register.
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