+#
+# Serial device configuration
+#
+
+menu "Serial drivers"
+
+config BAUDRATE
+ int "Default baudrate"
+ default 115200
+ help
+ Select a default baudrate, where "default" has a driver-specific
+ meaning of either setting the baudrate for the early debug UART
+ in the SPL stage (most drivers) or for choosing a default baudrate
+ in the absence of an environment setting (serial_mxc.c).
+
+config REQUIRE_SERIAL_CONSOLE
+ bool "Require a serial port for console"
+ # Running without a serial console is not supported by the
+ # non-dm serial code
+ depends on DM_SERIAL
+ default y
+ help
+ Require a serial port for the console, and panic if none is found
+ during serial port initialization (default y). Set this to n on
+ boards which have no debug serial port whatsoever.
+
+config SERIAL_PRESENT
+ bool "Provide a serial driver"
+ depends on DM_SERIAL
+ default y
+ help
+ In very space-constrained devices even the full UART driver is too
+ large. In this case the debug UART can still be used in some cases.
+ This option enables the full UART in U-Boot, so if is it disabled,
+ the full UART driver will be omitted, thus saving space.
+
+config SPL_SERIAL_PRESENT
+ bool "Provide a serial driver in SPL"
+ depends on DM_SERIAL
+ default y
+ help
+ In very space-constrained devices even the full UART driver is too
+ large. In this case the debug UART can still be used in some cases.
+ This option enables the full UART in SPL, so if is it disabled,
+ the full UART driver will be omitted, thus saving space.
+
config DM_SERIAL
bool "Enable Driver Model for serial drivers"
depends on DM
implements serial_putc() etc. The uclass interface is
defined in include/serial.h.
+config SPL_DM_SERIAL
+ bool "Enable Driver Model for serial drivers"
+ depends on DM_SERIAL
+ default y if SPL && DM_SERIAL
+ help
+ Enable driver model for serial in SPL. This replaces
+ drivers/serial/serial.c with the serial uclass, which
+ implements serial_putc() etc. The uclass interface is
+ defined in include/serial.h.
+
+config TPL_DM_SERIAL
+ bool "Enable Driver Model for serial drivers"
+ depends on DM_SERIAL
+ default y if TPL && DM_SERIAL
+ help
+ Enable driver model for serial in TPL. This replaces
+ drivers/serial/serial.c with the serial uclass, which
+ implements serial_putc() etc. The uclass interface is
+ defined in include/serial.h.
+
+config DEBUG_UART
+ bool "Enable an early debug UART for debugging"
+ help
+ The debug UART is intended for use very early in U-Boot to debug
+ problems when an ICE or other debug mechanism is not available.
+
+ To use it you should:
+ - Make sure your UART supports this interface
+ - Enable CONFIG_DEBUG_UART
+ - Enable the CONFIG for your UART to tell it to provide this interface
+ (e.g. CONFIG_DEBUG_UART_NS16550)
+ - Define the required settings as needed (see below)
+ - Call debug_uart_init() before use
+ - Call debug_uart_putc() to output a character
+
+ Depending on your platform it may be possible to use this UART before
+ a stack is available.
+
+ If your UART does not support this interface you can probably add
+ support quite easily. Remember that you cannot use driver model and
+ it is preferred to use no stack.
+
+ You must not use this UART once driver model is working and the
+ serial drivers are up and running (done in serial_init()). Otherwise
+ the drivers may conflict and you will get strange output.
+
+choice
+ prompt "Select which UART will provide the debug UART"
+ depends on DEBUG_UART
+ default DEBUG_UART_NS16550
+
+config DEBUG_UART_ALTERA_JTAGUART
+ bool "Altera JTAG UART"
+ help
+ Select this to enable a debug UART using the altera_jtag_uart driver.
+ You will need to provide parameters to make this work. The driver will
+ be available until the real driver model serial is running.
+
+config DEBUG_UART_ALTERA_UART
+ bool "Altera UART"
+ help
+ Select this to enable a debug UART using the altera_uart driver.
+ You will need to provide parameters to make this work. The driver will
+ be available until the real driver model serial is running.
+
+config DEBUG_UART_AR933X
+ bool "QCA/Atheros ar933x"
+ depends on AR933X_UART
+ help
+ Select this to enable a debug UART using the ar933x uart driver.
+ You will need to provide parameters to make this work. The
+ driver will be available until the real driver model serial is
+ running.
+
+config DEBUG_UART_ATMEL
+ bool "Atmel USART"
+ help
+ Select this to enable a debug UART using the atmel usart driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver-model serial is running.
+
+config DEBUG_UART_NS16550
+ bool "ns16550"
+ help
+ Select this to enable a debug UART using the ns16550 driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver model serial is running.
+
+config DEBUG_EFI_CONSOLE
+ bool "EFI"
+ depends on EFI_APP
+ help
+ Select this to enable a debug console which calls back to EFI to
+ output to the console. This can be useful for early debugging of
+ U-Boot when running on top of EFI (Extensive Firmware Interface).
+ This is a type of BIOS used by PCs.
+
+config DEBUG_UART_S5P
+ bool "Samsung S5P"
+ help
+ Select this to enable a debug UART using the serial_s5p driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver-model serial is running.
+
+config DEBUG_UART_MESON
+ bool "Amlogic Meson"
+ depends on MESON_SERIAL
+ help
+ Select this to enable a debug UART using the serial_meson driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver-model serial is running.
+
+config DEBUG_UART_UARTLITE
+ bool "Xilinx Uartlite"
+ help
+ Select this to enable a debug UART using the serial_uartlite driver.
+ You will need to provide parameters to make this work. The driver will
+ be available until the real driver-model serial is running.
+
+config DEBUG_UART_ARM_DCC
+ bool "ARM DCC"
+ help
+ Select this to enable a debug UART using the ARM JTAG DCC port.
+ The DCC port can be used for very early debugging and doesn't require
+ any additional setting like address/baudrate/clock. On systems without
+ any serial interface this is the easiest way how to get console.
+ Every ARM core has own DCC port which is the part of debug interface.
+ This port is available at least on ARMv6, ARMv7, ARMv8 and XScale
+ architectures.
+
+config DEBUG_MVEBU_A3700_UART
+ bool "Marvell Armada 3700"
+ help
+ Select this to enable a debug UART using the serial_mvebu driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver-model serial is running.
+
+config DEBUG_UART_ZYNQ
+ bool "Xilinx Zynq"
+ help
+ Select this to enable a debug UART using the serial_zynq driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver-model serial is running.
+
+config DEBUG_UART_APBUART
+ depends on LEON3
+ bool "Gaisler APBUART"
+ help
+ Select this to enable a debug UART using the serial_leon3 driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver model serial is running.
+
+config DEBUG_UART_PL010
+ bool "pl010"
+ help
+ Select this to enable a debug UART using the pl01x driver with the
+ PL010 UART type. You will need to provide parameters to make this
+ work. The driver will be available until the real driver model
+ serial is running.
+
+config DEBUG_UART_PL011
+ bool "pl011"
+ help
+ Select this to enable a debug UART using the pl01x driver with the
+ PL011 UART type. You will need to provide parameters to make this
+ work. The driver will be available until the real driver model
+ serial is running.
+
+config DEBUG_UART_PIC32
+ bool "Microchip PIC32"
+ depends on PIC32_SERIAL
+ help
+ Select this to enable a debug UART using the serial_pic32 driver. You
+ will need to provide parameters to make this work. The driver will
+ be available until the real driver model serial is running.
+
+config DEBUG_UART_UNIPHIER
+ bool "UniPhier on-chip UART"
+ depends on ARCH_UNIPHIER
+ help
+ Select this to enable a debug UART using the UniPhier on-chip UART.
+ You will need to provide DEBUG_UART_BASE to make this work. The
+ driver will be available until the real driver-model serial is
+ running.
+
+endchoice
+
+config DEBUG_UART_BASE
+ hex "Base address of UART"
+ depends on DEBUG_UART
+ help
+ This is the base address of your UART for memory-mapped UARTs.
+
+ A default should be provided by your board, but if not you will need
+ to use the correct value here.
+
+config DEBUG_UART_CLOCK
+ int "UART input clock"
+ depends on DEBUG_UART
+ help
+ The UART input clock determines the speed of the internal UART
+ circuitry. The baud rate is derived from this by dividing the input
+ clock down.
+
+ A default should be provided by your board, but if not you will need
+ to use the correct value here.
+
+config DEBUG_UART_SHIFT
+ int "UART register shift"
+ depends on DEBUG_UART
+ default 0 if DEBUG_UART
+ help
+ Some UARTs (notably ns16550) support different register layouts
+ where the registers are spaced either as bytes, words or some other
+ value. Use this value to specify the shift to use, where 0=byte
+ registers, 2=32-bit word registers, etc.
+
+config DEBUG_UART_BOARD_INIT
+ bool "Enable board-specific debug UART init"
+ depends on DEBUG_UART
+ help
+ Some boards need to set things up before the debug UART can be used.
+ On these boards a call to debug_uart_init() is insufficient. When
+ this option is enabled, the function board_debug_uart_init() will
+ be called when debug_uart_init() is called. You can put any code
+ here that is needed to set up the UART ready for use, such as set
+ pin multiplexing or enable clocks.
+
+config DEBUG_UART_ANNOUNCE
+ bool "Show a message when the debug UART starts up"
+ depends on DEBUG_UART
+ help
+ Enable this option to show a message when the debug UART is ready
+ for use. You will see a message like "<debug_uart> " as soon as
+ U-Boot has the UART ready for use (i.e. your code calls
+ debug_uart_init()). This can be useful just as a check that
+ everything is working.
+
+config DEBUG_UART_SKIP_INIT
+ bool "Skip UART initialization"
+ help
+ Select this if the UART you want to use for debug output is already
+ initialized by the time U-Boot starts its execution.
+
+config ALTERA_JTAG_UART
+ bool "Altera JTAG UART support"
+ depends on DM_SERIAL
+ help
+ Select this to enable an JTAG UART for Altera devices.The JTAG UART
+ core implements a method to communicate serial character streams
+ between a host PC and a Qsys system on an Altera FPGA. Please find
+ details on the "Embedded Peripherals IP User Guide" of Altera.
+
+config ALTERA_JTAG_UART_BYPASS
+ bool "Bypass output when no connection"
+ depends on ALTERA_JTAG_UART
+ help
+ Bypass console output and keep going even if there is no JTAG
+ terminal connection with the host. The console output will resume
+ once the JTAG terminal is connected. Without the bypass, the console
+ output will wait forever until a JTAG terminal is connected. If you
+ not are sure, say Y.
+
+config ALTERA_UART
+ bool "Altera UART support"
+ depends on DM_SERIAL
+ help
+ Select this to enable an UART for Altera devices. Please find
+ details on the "Embedded Peripherals IP User Guide" of Altera.
+
+config AR933X_UART
+ bool "QCA/Atheros ar933x UART support"
+ depends on DM_SERIAL && SOC_AR933X
+ help
+ Select this to enable UART support for QCA/Atheros ar933x
+ devices. This driver uses driver model and requires a device
+ tree binding to operate, please refer to the document at
+ doc/device-tree-bindings/serial/qca,ar9330-uart.txt.
+
+config ATMEL_USART
+ bool "Atmel USART support"
+ help
+ Select this to enable USART support for Atmel SoCs. It can be
+ configured in the device tree, and input clock frequency can
+ be got from the clk node.
+
+config FSL_LPUART
+ bool "Freescale LPUART support"
+ help
+ Select this to enable a Low Power UART for Freescale VF610 and
+ QorIQ Layerscape devices.
+
+config MVEBU_A3700_UART
+ bool "UART support for Armada 3700"
+ default n
+ help
+ Choose this option to add support for UART driver on the Marvell
+ Armada 3700 SoC. The base address is configured via DT.
+
+config MXC_UART
+ bool "IMX serial port support"
+ depends on MX5 || MX6
+ help
+ If you have a machine based on a Motorola IMX CPU you
+ can enable its onboard serial port by enabling this option.
+
+config PIC32_SERIAL
+ bool "Support for Microchip PIC32 on-chip UART"
+ depends on DM_SERIAL && MACH_PIC32
+ default y
+ help
+ Support for the UART found on Microchip PIC32 SoC's.
+
+config SYS_NS16550
+ bool "NS16550 UART or compatible"
+ help
+ Support NS16550 UART or compatible. This can be enabled in the
+ device tree with the correct input clock frequency. If the input
+ clock frequency is not defined in the device tree, the macro
+ CONFIG_SYS_NS16550_CLK defined in a legacy board header file will
+ be used. It can be a constant or a function to get clock, eg,
+ get_serial_clock().
+
+config INTEL_MID_SERIAL
+ bool "Intel MID platform UART support"
+ depends on DM_SERIAL && OF_CONTROL
+ depends on INTEL_MID
+ select SYS_NS16550
+ help
+ Select this to enable a UART for Intel MID platforms.
+ This uses the ns16550 driver as a library.
+
+config ROCKCHIP_SERIAL
+ bool "Rockchip on-chip UART support"
+ depends on DM_SERIAL && SPL_OF_PLATDATA
+ help
+ Select this to enable a debug UART for Rockchip devices when using
+ CONFIG_SPL_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt).
+ This uses the ns16550 driver, converting the platdata from of-platdata
+ to the ns16550 format.
+
+config SANDBOX_SERIAL
+ bool "Sandbox UART support"
+ depends on SANDBOX
+ help
+ Select this to enable a seral UART for sandbox. This is required to
+ operate correctly, otherwise you will see no serial output from
+ sandbox. The emulated UART will display to the console and console
+ input will be fed into the UART. This allows you to interact with
+ U-Boot.
+
+ The operation of the console is controlled by the -t command-line
+ flag. In raw mode, U-Boot sees all characters from the terminal
+ before they are processed, including Ctrl-C. In cooked mode, Ctrl-C
+ is processed by the terminal, and terminates U-Boot. Valid options
+ are:
+
+ -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot
+ -t raw Raw mode, Ctrl-C is processed by U-Boot
+ -t cooked Cooked mode, Ctrl-C terminates
+
config UNIPHIER_SERIAL
- bool "UniPhier on-chip UART support"
- depends on ARCH_UNIPHIER && DM_SERIAL
+ bool "Support for UniPhier on-chip UART"
+ depends on ARCH_UNIPHIER
+ default y
+ help
+ If you have a UniPhier based board and want to use the on-chip
+ serial ports, say Y to this option. If unsure, say N.
+
+config XILINX_UARTLITE
+ bool "Xilinx Uarlite support"
+ depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx)
+ help
+ If you have a Xilinx based board and want to use the uartlite
+ serial ports, say Y to this option. If unsure, say N.
+
+config MESON_SERIAL
+ bool "Support for Amlogic Meson UART"
+ depends on DM_SERIAL && ARCH_MESON
help
- Support for the on-chip UARTs on the Panasonic UniPhier platform.
+ If you have an Amlogic Meson based board and want to use the on-chip
+ serial ports, say Y to this option. If unsure, say N.
+
+config MSM_SERIAL
+ bool "Qualcomm on-chip UART"
+ depends on DM_SERIAL
+ help
+ Support Data Mover UART used on Qualcomm Snapdragon SoCs.
+ It should support all Qualcomm devices with UARTDM version 1.4,
+ for example APQ8016 and MSM8916.
+ Single baudrate is supported in current implementation (115200).
+
+config PXA_SERIAL
+ bool "PXA serial port support"
+ help
+ If you have a machine based on a Marvell XScale PXA2xx CPU you
+ can enable its onboard serial ports by enabling this option.
+
+config STI_ASC_SERIAL
+ bool "STMicroelectronics on-chip UART"
+ depends on DM_SERIAL && ARCH_STI
+ help
+ Select this to enable Asynchronous Serial Controller available
+ on STiH410 SoC. This is a basic implementation, it supports
+ following baudrate 9600, 19200, 38400, 57600 and 115200.
+
+endmenu
projects / u-boot / blobdiff