10b11dbf7SMasahiro Yamada# 20b11dbf7SMasahiro Yamada# Serial device configuration 30b11dbf7SMasahiro Yamada# 40b11dbf7SMasahiro Yamada 50b11dbf7SMasahiro Yamadamenu "Serial drivers" 60b11dbf7SMasahiro Yamada 7f40574e2SPhilipp Tomsichconfig BAUDRATE 8f40574e2SPhilipp Tomsich int "Default baudrate" 9f40574e2SPhilipp Tomsich default 115200 10f40574e2SPhilipp Tomsich help 11f40574e2SPhilipp Tomsich Select a default baudrate, where "default" has a driver-specific 12f40574e2SPhilipp Tomsich meaning of either setting the baudrate for the early debug UART 13f40574e2SPhilipp Tomsich in the SPL stage (most drivers) or for choosing a default baudrate 14f40574e2SPhilipp Tomsich in the absence of an environment setting (serial_mxc.c). 15f40574e2SPhilipp Tomsich 168c458588SHans de Goedeconfig REQUIRE_SERIAL_CONSOLE 178c458588SHans de Goede bool "Require a serial port for console" 188c458588SHans de Goede # Running without a serial console is not supported by the 198c458588SHans de Goede # non-dm serial code 208c458588SHans de Goede depends on DM_SERIAL 218c458588SHans de Goede default y 228c458588SHans de Goede help 238c458588SHans de Goede Require a serial port for the console, and panic if none is found 248c458588SHans de Goede during serial port initialization (default y). Set this to n on 258c458588SHans de Goede boards which have no debug serial port whatsoever. 268c458588SHans de Goede 2792c55b68SSimon Glassconfig SERIAL_PRESENT 2892c55b68SSimon Glass bool "Provide a serial driver" 2992c55b68SSimon Glass depends on DM_SERIAL 3092c55b68SSimon Glass default y 3192c55b68SSimon Glass help 3292c55b68SSimon Glass In very space-constrained devices even the full UART driver is too 3392c55b68SSimon Glass large. In this case the debug UART can still be used in some cases. 3492c55b68SSimon Glass This option enables the full UART in U-Boot, so if is it disabled, 3592c55b68SSimon Glass the full UART driver will be omitted, thus saving space. 3692c55b68SSimon Glass 3792c55b68SSimon Glassconfig SPL_SERIAL_PRESENT 3892c55b68SSimon Glass bool "Provide a serial driver in SPL" 3992c55b68SSimon Glass depends on DM_SERIAL 4092c55b68SSimon Glass default y 4192c55b68SSimon Glass help 4292c55b68SSimon Glass In very space-constrained devices even the full UART driver is too 4392c55b68SSimon Glass large. In this case the debug UART can still be used in some cases. 4492c55b68SSimon Glass This option enables the full UART in SPL, so if is it disabled, 4592c55b68SSimon Glass the full UART driver will be omitted, thus saving space. 4692c55b68SSimon Glass 477095f864SMylène Josserandconfig CONS_INDEX 487095f864SMylène Josserand int "UART used for console" 497095f864SMylène Josserand depends on ARCH_SUNXI 507095f864SMylène Josserand default 2 if MACH_SUN5I 51e8f86a02SIcenowy Zheng default 5 if MACH_SUN8I_A23 || MACH_SUN8I_A33 527095f864SMylène Josserand default 1 537095f864SMylène Josserand help 547095f864SMylène Josserand Configures the console index. 55e8f86a02SIcenowy Zheng For Allwinner SoC., default values are 2 for SUN5I and 5 for A23/A33. 567095f864SMylène Josserand Otherwise, the index equals 1. 577095f864SMylène Josserand 58da333ae7SMasahiro Yamadaconfig DM_SERIAL 59da333ae7SMasahiro Yamada bool "Enable Driver Model for serial drivers" 60da333ae7SMasahiro Yamada depends on DM 61da333ae7SMasahiro Yamada help 62f94a1bedSSimon Glass Enable driver model for serial. This replaces 63f94a1bedSSimon Glass drivers/serial/serial.c with the serial uclass, which 64f94a1bedSSimon Glass implements serial_putc() etc. The uclass interface is 65f94a1bedSSimon Glass defined in include/serial.h. 66ff247b7aSMasahiro Yamada 676822cf3eSStefan Roeseconfig SERIAL_IRQ_BUFFER 686822cf3eSStefan Roese bool "Enable RX interrupt buffer for serial input" 696822cf3eSStefan Roese depends on DM_SERIAL 706822cf3eSStefan Roese default n 716822cf3eSStefan Roese help 726822cf3eSStefan Roese Enable RX interrupt buffer support for the serial driver. 736822cf3eSStefan Roese This enables pasting longer strings, even when the RX FIFO 746822cf3eSStefan Roese of the UART is not big enough (e.g. 16 bytes on the normal 756822cf3eSStefan Roese NS16550). 766822cf3eSStefan Roese 77891f7ae6SSimon Glassconfig SPL_DM_SERIAL 780424990cSHeiko Schocher bool "Enable Driver Model for serial drivers in SPL" 79891f7ae6SSimon Glass depends on DM_SERIAL 80891f7ae6SSimon Glass default y if SPL && DM_SERIAL 81891f7ae6SSimon Glass help 82891f7ae6SSimon Glass Enable driver model for serial in SPL. This replaces 83891f7ae6SSimon Glass drivers/serial/serial.c with the serial uclass, which 84891f7ae6SSimon Glass implements serial_putc() etc. The uclass interface is 85891f7ae6SSimon Glass defined in include/serial.h. 86891f7ae6SSimon Glass 87891f7ae6SSimon Glassconfig TPL_DM_SERIAL 880424990cSHeiko Schocher bool "Enable Driver Model for serial drivers in TPL" 89891f7ae6SSimon Glass depends on DM_SERIAL 90891f7ae6SSimon Glass default y if TPL && DM_SERIAL 91891f7ae6SSimon Glass help 92891f7ae6SSimon Glass Enable driver model for serial in TPL. This replaces 93891f7ae6SSimon Glass drivers/serial/serial.c with the serial uclass, which 94891f7ae6SSimon Glass implements serial_putc() etc. The uclass interface is 95891f7ae6SSimon Glass defined in include/serial.h. 96891f7ae6SSimon Glass 972f964aa7SSimon Glassconfig DEBUG_UART 982f964aa7SSimon Glass bool "Enable an early debug UART for debugging" 992f964aa7SSimon Glass help 1002f964aa7SSimon Glass The debug UART is intended for use very early in U-Boot to debug 1012f964aa7SSimon Glass problems when an ICE or other debug mechanism is not available. 1022f964aa7SSimon Glass 1032f964aa7SSimon Glass To use it you should: 1042f964aa7SSimon Glass - Make sure your UART supports this interface 1052f964aa7SSimon Glass - Enable CONFIG_DEBUG_UART 1062f964aa7SSimon Glass - Enable the CONFIG for your UART to tell it to provide this interface 1072f964aa7SSimon Glass (e.g. CONFIG_DEBUG_UART_NS16550) 1082f964aa7SSimon Glass - Define the required settings as needed (see below) 1092f964aa7SSimon Glass - Call debug_uart_init() before use 1102f964aa7SSimon Glass - Call debug_uart_putc() to output a character 1112f964aa7SSimon Glass 1122f964aa7SSimon Glass Depending on your platform it may be possible to use this UART before 1132f964aa7SSimon Glass a stack is available. 1142f964aa7SSimon Glass 1152f964aa7SSimon Glass If your UART does not support this interface you can probably add 1162f964aa7SSimon Glass support quite easily. Remember that you cannot use driver model and 1172f964aa7SSimon Glass it is preferred to use no stack. 1182f964aa7SSimon Glass 1192f964aa7SSimon Glass You must not use this UART once driver model is working and the 1202f964aa7SSimon Glass serial drivers are up and running (done in serial_init()). Otherwise 1212f964aa7SSimon Glass the drivers may conflict and you will get strange output. 1222f964aa7SSimon Glass 12321d00436SSimon Glasschoice 12421d00436SSimon Glass prompt "Select which UART will provide the debug UART" 12521d00436SSimon Glass depends on DEBUG_UART 126b1e361b6SThomas Chou default DEBUG_UART_NS16550 12721d00436SSimon Glass 128220e8021SThomas Chouconfig DEBUG_UART_ALTERA_JTAGUART 129220e8021SThomas Chou bool "Altera JTAG UART" 130220e8021SThomas Chou help 131220e8021SThomas Chou Select this to enable a debug UART using the altera_jtag_uart driver. 132220e8021SThomas Chou You will need to provide parameters to make this work. The driver will 133220e8021SThomas Chou be available until the real driver model serial is running. 134220e8021SThomas Chou 135da2f838dSThomas Chouconfig DEBUG_UART_ALTERA_UART 136da2f838dSThomas Chou bool "Altera UART" 137da2f838dSThomas Chou help 138da2f838dSThomas Chou Select this to enable a debug UART using the altera_uart driver. 139da2f838dSThomas Chou You will need to provide parameters to make this work. The driver will 140da2f838dSThomas Chou be available until the real driver model serial is running. 141da2f838dSThomas Chou 14260b49761SWills Wangconfig DEBUG_UART_AR933X 14360b49761SWills Wang bool "QCA/Atheros ar933x" 14460b49761SWills Wang depends on AR933X_UART 14560b49761SWills Wang help 14660b49761SWills Wang Select this to enable a debug UART using the ar933x uart driver. 14760b49761SWills Wang You will need to provide parameters to make this work. The 14860b49761SWills Wang driver will be available until the real driver model serial is 14960b49761SWills Wang running. 15060b49761SWills Wang 151998cf3c2SWenyou Yangconfig DEBUG_UART_ATMEL 152998cf3c2SWenyou Yang bool "Atmel USART" 153998cf3c2SWenyou Yang help 154998cf3c2SWenyou Yang Select this to enable a debug UART using the atmel usart driver. You 155998cf3c2SWenyou Yang will need to provide parameters to make this work. The driver will 156998cf3c2SWenyou Yang be available until the real driver-model serial is running. 157998cf3c2SWenyou Yang 15830581040SÁlvaro Fernández Rojasconfig DEBUG_UART_BCM6345 15930581040SÁlvaro Fernández Rojas bool "BCM6345 UART" 16030581040SÁlvaro Fernández Rojas depends on BCM6345_SERIAL 16130581040SÁlvaro Fernández Rojas help 16230581040SÁlvaro Fernández Rojas Select this to enable a debug UART on BCM6345 SoCs. You 16330581040SÁlvaro Fernández Rojas will need to provide parameters to make this work. The driver will 16430581040SÁlvaro Fernández Rojas be available until the real driver model serial is running. 16530581040SÁlvaro Fernández Rojas 16621d00436SSimon Glassconfig DEBUG_UART_NS16550 16721d00436SSimon Glass bool "ns16550" 16821d00436SSimon Glass help 16921d00436SSimon Glass Select this to enable a debug UART using the ns16550 driver. You 17021d00436SSimon Glass will need to provide parameters to make this work. The driver will 17121d00436SSimon Glass be available until the real driver model serial is running. 17221d00436SSimon Glass 173275854baSSimon Glassconfig DEBUG_EFI_CONSOLE 174275854baSSimon Glass bool "EFI" 175275854baSSimon Glass depends on EFI_APP 176275854baSSimon Glass help 177275854baSSimon Glass Select this to enable a debug console which calls back to EFI to 178275854baSSimon Glass output to the console. This can be useful for early debugging of 179275854baSSimon Glass U-Boot when running on top of EFI (Extensive Firmware Interface). 180275854baSSimon Glass This is a type of BIOS used by PCs. 181275854baSSimon Glass 182bf6e7022SSimon Glassconfig DEBUG_UART_S5P 183bf6e7022SSimon Glass bool "Samsung S5P" 184bf6e7022SSimon Glass help 185bf6e7022SSimon Glass Select this to enable a debug UART using the serial_s5p driver. You 186bf6e7022SSimon Glass will need to provide parameters to make this work. The driver will 187bf6e7022SSimon Glass be available until the real driver-model serial is running. 188bf6e7022SSimon Glass 189bfcef28aSBeniamino Galvaniconfig DEBUG_UART_MESON 190bfcef28aSBeniamino Galvani bool "Amlogic Meson" 191bfcef28aSBeniamino Galvani depends on MESON_SERIAL 192bfcef28aSBeniamino Galvani help 193bfcef28aSBeniamino Galvani Select this to enable a debug UART using the serial_meson driver. You 194bfcef28aSBeniamino Galvani will need to provide parameters to make this work. The driver will 195bfcef28aSBeniamino Galvani be available until the real driver-model serial is running. 196bfcef28aSBeniamino Galvani 1974166ba3bSMichal Simekconfig DEBUG_UART_UARTLITE 1984166ba3bSMichal Simek bool "Xilinx Uartlite" 1994166ba3bSMichal Simek help 2004166ba3bSMichal Simek Select this to enable a debug UART using the serial_uartlite driver. 2014166ba3bSMichal Simek You will need to provide parameters to make this work. The driver will 2024166ba3bSMichal Simek be available until the real driver-model serial is running. 2034166ba3bSMichal Simek 204966bfa73SMichal Simekconfig DEBUG_UART_ARM_DCC 205966bfa73SMichal Simek bool "ARM DCC" 206966bfa73SMichal Simek help 207966bfa73SMichal Simek Select this to enable a debug UART using the ARM JTAG DCC port. 208966bfa73SMichal Simek The DCC port can be used for very early debugging and doesn't require 209966bfa73SMichal Simek any additional setting like address/baudrate/clock. On systems without 210966bfa73SMichal Simek any serial interface this is the easiest way how to get console. 211966bfa73SMichal Simek Every ARM core has own DCC port which is the part of debug interface. 212966bfa73SMichal Simek This port is available at least on ARMv6, ARMv7, ARMv8 and XScale 213966bfa73SMichal Simek architectures. 214966bfa73SMichal Simek 2156985d496SStefan Roeseconfig DEBUG_MVEBU_A3700_UART 2166985d496SStefan Roese bool "Marvell Armada 3700" 2176985d496SStefan Roese help 2186985d496SStefan Roese Select this to enable a debug UART using the serial_mvebu driver. You 2196985d496SStefan Roese will need to provide parameters to make this work. The driver will 2206985d496SStefan Roese be available until the real driver-model serial is running. 2216985d496SStefan Roese 222c54c0a4cSSimon Glassconfig DEBUG_UART_ZYNQ 223c54c0a4cSSimon Glass bool "Xilinx Zynq" 224c54c0a4cSSimon Glass help 2256bf87dacSMichal Simek Select this to enable a debug UART using the serial_zynq driver. You 226c54c0a4cSSimon Glass will need to provide parameters to make this work. The driver will 227c54c0a4cSSimon Glass be available until the real driver-model serial is running. 228c54c0a4cSSimon Glass 229e43ce3fcSFrancois Retiefconfig DEBUG_UART_APBUART 230e43ce3fcSFrancois Retief depends on LEON3 231e43ce3fcSFrancois Retief bool "Gaisler APBUART" 232e43ce3fcSFrancois Retief help 233e43ce3fcSFrancois Retief Select this to enable a debug UART using the serial_leon3 driver. You 234e43ce3fcSFrancois Retief will need to provide parameters to make this work. The driver will 235e43ce3fcSFrancois Retief be available until the real driver model serial is running. 236e43ce3fcSFrancois Retief 23719de8150SSergey Temerkhanovconfig DEBUG_UART_PL010 23819de8150SSergey Temerkhanov bool "pl010" 23919de8150SSergey Temerkhanov help 24019de8150SSergey Temerkhanov Select this to enable a debug UART using the pl01x driver with the 24119de8150SSergey Temerkhanov PL010 UART type. You will need to provide parameters to make this 24219de8150SSergey Temerkhanov work. The driver will be available until the real driver model 24319de8150SSergey Temerkhanov serial is running. 24419de8150SSergey Temerkhanov 24519de8150SSergey Temerkhanovconfig DEBUG_UART_PL011 24619de8150SSergey Temerkhanov bool "pl011" 24719de8150SSergey Temerkhanov help 24819de8150SSergey Temerkhanov Select this to enable a debug UART using the pl01x driver with the 24919de8150SSergey Temerkhanov PL011 UART type. You will need to provide parameters to make this 25019de8150SSergey Temerkhanov work. The driver will be available until the real driver model 25119de8150SSergey Temerkhanov serial is running. 25219de8150SSergey Temerkhanov 2539e160ee8SPaul Thackerconfig DEBUG_UART_PIC32 2549e160ee8SPaul Thacker bool "Microchip PIC32" 2559e160ee8SPaul Thacker depends on PIC32_SERIAL 2569e160ee8SPaul Thacker help 2579e160ee8SPaul Thacker Select this to enable a debug UART using the serial_pic32 driver. You 2589e160ee8SPaul Thacker will need to provide parameters to make this work. The driver will 2599e160ee8SPaul Thacker be available until the real driver model serial is running. 2609e160ee8SPaul Thacker 26161366b71SJagan Tekiconfig DEBUG_UART_MXC 26261366b71SJagan Teki bool "IMX Serial port" 26361366b71SJagan Teki depends on MXC_UART 26461366b71SJagan Teki help 26561366b71SJagan Teki Select this to enable a debug UART using the serial_mxc driver. You 26661366b71SJagan Teki will need to provide parameters to make this work. The driver will 26761366b71SJagan Teki be available until the real driver model serial is running. 26861366b71SJagan Teki 269d5cf3297SMasahiro Yamadaconfig DEBUG_UART_UNIPHIER 270d5cf3297SMasahiro Yamada bool "UniPhier on-chip UART" 271d5cf3297SMasahiro Yamada depends on ARCH_UNIPHIER 272d5cf3297SMasahiro Yamada help 273d5cf3297SMasahiro Yamada Select this to enable a debug UART using the UniPhier on-chip UART. 274d5cf3297SMasahiro Yamada You will need to provide DEBUG_UART_BASE to make this work. The 275d5cf3297SMasahiro Yamada driver will be available until the real driver-model serial is 276d5cf3297SMasahiro Yamada running. 277d5cf3297SMasahiro Yamada 278a52cf086SLokesh Vutlaconfig DEBUG_UART_OMAP 279a52cf086SLokesh Vutla bool "OMAP uart" 280a52cf086SLokesh Vutla help 281a52cf086SLokesh Vutla Select this to enable a debug UART using the omap ns16550 driver. 282a52cf086SLokesh Vutla You will need to provide parameters to make this work. The driver 283a52cf086SLokesh Vutla will be available until the real driver model serial is running. 284a52cf086SLokesh Vutla 28521d00436SSimon Glassendchoice 28621d00436SSimon Glass 2872f964aa7SSimon Glassconfig DEBUG_UART_BASE 2882f964aa7SSimon Glass hex "Base address of UART" 2892f964aa7SSimon Glass depends on DEBUG_UART 2902f964aa7SSimon Glass help 2912f964aa7SSimon Glass This is the base address of your UART for memory-mapped UARTs. 2922f964aa7SSimon Glass 2932f964aa7SSimon Glass A default should be provided by your board, but if not you will need 2942f964aa7SSimon Glass to use the correct value here. 2952f964aa7SSimon Glass 2962f964aa7SSimon Glassconfig DEBUG_UART_CLOCK 2972f964aa7SSimon Glass int "UART input clock" 2982f964aa7SSimon Glass depends on DEBUG_UART 2992f964aa7SSimon Glass help 3002f964aa7SSimon Glass The UART input clock determines the speed of the internal UART 3012f964aa7SSimon Glass circuitry. The baud rate is derived from this by dividing the input 3022f964aa7SSimon Glass clock down. 3032f964aa7SSimon Glass 3042f964aa7SSimon Glass A default should be provided by your board, but if not you will need 3052f964aa7SSimon Glass to use the correct value here. 3062f964aa7SSimon Glass 307dd0b0122SSimon Glassconfig DEBUG_UART_SHIFT 308dd0b0122SSimon Glass int "UART register shift" 309dd0b0122SSimon Glass depends on DEBUG_UART 310dd0b0122SSimon Glass default 0 if DEBUG_UART 311dd0b0122SSimon Glass help 312dd0b0122SSimon Glass Some UARTs (notably ns16550) support different register layouts 313dd0b0122SSimon Glass where the registers are spaced either as bytes, words or some other 314dd0b0122SSimon Glass value. Use this value to specify the shift to use, where 0=byte 315dd0b0122SSimon Glass registers, 2=32-bit word registers, etc. 316dd0b0122SSimon Glass 3170e977bc1SSimon Glassconfig DEBUG_UART_BOARD_INIT 3180e977bc1SSimon Glass bool "Enable board-specific debug UART init" 3190e977bc1SSimon Glass depends on DEBUG_UART 3200e977bc1SSimon Glass help 3210e977bc1SSimon Glass Some boards need to set things up before the debug UART can be used. 3220e977bc1SSimon Glass On these boards a call to debug_uart_init() is insufficient. When 3230e977bc1SSimon Glass this option is enabled, the function board_debug_uart_init() will 3240e977bc1SSimon Glass be called when debug_uart_init() is called. You can put any code 3250e977bc1SSimon Glass here that is needed to set up the UART ready for use, such as set 3260e977bc1SSimon Glass pin multiplexing or enable clocks. 3270e977bc1SSimon Glass 328c7fefcb9SSimon Glassconfig DEBUG_UART_ANNOUNCE 329c7fefcb9SSimon Glass bool "Show a message when the debug UART starts up" 330c7fefcb9SSimon Glass depends on DEBUG_UART 331c7fefcb9SSimon Glass help 332c7fefcb9SSimon Glass Enable this option to show a message when the debug UART is ready 333c7fefcb9SSimon Glass for use. You will see a message like "<debug_uart> " as soon as 334c7fefcb9SSimon Glass U-Boot has the UART ready for use (i.e. your code calls 335c7fefcb9SSimon Glass debug_uart_init()). This can be useful just as a check that 336c7fefcb9SSimon Glass everything is working. 337c7fefcb9SSimon Glass 33819de8150SSergey Temerkhanovconfig DEBUG_UART_SKIP_INIT 33919de8150SSergey Temerkhanov bool "Skip UART initialization" 34019de8150SSergey Temerkhanov help 34119de8150SSergey Temerkhanov Select this if the UART you want to use for debug output is already 34219de8150SSergey Temerkhanov initialized by the time U-Boot starts its execution. 34319de8150SSergey Temerkhanov 344220e8021SThomas Chouconfig ALTERA_JTAG_UART 345220e8021SThomas Chou bool "Altera JTAG UART support" 346220e8021SThomas Chou depends on DM_SERIAL 347220e8021SThomas Chou help 348220e8021SThomas Chou Select this to enable an JTAG UART for Altera devices.The JTAG UART 349220e8021SThomas Chou core implements a method to communicate serial character streams 350220e8021SThomas Chou between a host PC and a Qsys system on an Altera FPGA. Please find 351220e8021SThomas Chou details on the "Embedded Peripherals IP User Guide" of Altera. 352220e8021SThomas Chou 353220e8021SThomas Chouconfig ALTERA_JTAG_UART_BYPASS 354220e8021SThomas Chou bool "Bypass output when no connection" 355220e8021SThomas Chou depends on ALTERA_JTAG_UART 356220e8021SThomas Chou help 357220e8021SThomas Chou Bypass console output and keep going even if there is no JTAG 358220e8021SThomas Chou terminal connection with the host. The console output will resume 359220e8021SThomas Chou once the JTAG terminal is connected. Without the bypass, the console 360220e8021SThomas Chou output will wait forever until a JTAG terminal is connected. If you 361220e8021SThomas Chou not are sure, say Y. 362220e8021SThomas Chou 363da2f838dSThomas Chouconfig ALTERA_UART 364da2f838dSThomas Chou bool "Altera UART support" 365da2f838dSThomas Chou depends on DM_SERIAL 366da2f838dSThomas Chou help 367da2f838dSThomas Chou Select this to enable an UART for Altera devices. Please find 368da2f838dSThomas Chou details on the "Embedded Peripherals IP User Guide" of Altera. 369da2f838dSThomas Chou 37060b49761SWills Wangconfig AR933X_UART 37160b49761SWills Wang bool "QCA/Atheros ar933x UART support" 37260b49761SWills Wang depends on DM_SERIAL && SOC_AR933X 37360b49761SWills Wang help 37460b49761SWills Wang Select this to enable UART support for QCA/Atheros ar933x 37560b49761SWills Wang devices. This driver uses driver model and requires a device 37660b49761SWills Wang tree binding to operate, please refer to the document at 37760b49761SWills Wang doc/device-tree-bindings/serial/qca,ar9330-uart.txt. 37860b49761SWills Wang 3796ec739aaSWenyou Yangconfig ATMEL_USART 3806ec739aaSWenyou Yang bool "Atmel USART support" 3816ec739aaSWenyou Yang help 3826ec739aaSWenyou Yang Select this to enable USART support for Atmel SoCs. It can be 3836ec739aaSWenyou Yang configured in the device tree, and input clock frequency can 3846ec739aaSWenyou Yang be got from the clk node. 3856ec739aaSWenyou Yang 38630581040SÁlvaro Fernández Rojasconfig BCM6345_SERIAL 38730581040SÁlvaro Fernández Rojas bool "Support for BCM6345 UART" 38830581040SÁlvaro Fernández Rojas depends on DM_SERIAL && ARCH_BMIPS 38930581040SÁlvaro Fernández Rojas help 39030581040SÁlvaro Fernández Rojas Select this to enable UART on BCM6345 SoCs. 39130581040SÁlvaro Fernández Rojas 3925ed07cf5SBin Mengconfig FSL_LPUART 3935ed07cf5SBin Meng bool "Freescale LPUART support" 3945ed07cf5SBin Meng help 3955ed07cf5SBin Meng Select this to enable a Low Power UART for Freescale VF610 and 3965ed07cf5SBin Meng QorIQ Layerscape devices. 3975ed07cf5SBin Meng 3986985d496SStefan Roeseconfig MVEBU_A3700_UART 3996985d496SStefan Roese bool "UART support for Armada 3700" 4006985d496SStefan Roese default n 4016985d496SStefan Roese help 4026985d496SStefan Roese Choose this option to add support for UART driver on the Marvell 4036985d496SStefan Roese Armada 3700 SoC. The base address is configured via DT. 4046985d496SStefan Roese 4058829e662SJagan Tekiconfig MXC_UART 4068829e662SJagan Teki bool "IMX serial port support" 40798d62e61SPatrick Bruenn depends on MX5 || MX6 4088829e662SJagan Teki help 4098829e662SJagan Teki If you have a machine based on a Motorola IMX CPU you 4108829e662SJagan Teki can enable its onboard serial port by enabling this option. 4118829e662SJagan Teki 4129e160ee8SPaul Thackerconfig PIC32_SERIAL 4139e160ee8SPaul Thacker bool "Support for Microchip PIC32 on-chip UART" 4149e160ee8SPaul Thacker depends on DM_SERIAL && MACH_PIC32 4159e160ee8SPaul Thacker default y 4169e160ee8SPaul Thacker help 4179e160ee8SPaul Thacker Support for the UART found on Microchip PIC32 SoC's. 4189e160ee8SPaul Thacker 4199e39003eSThomas Chouconfig SYS_NS16550 4209e39003eSThomas Chou bool "NS16550 UART or compatible" 4219e39003eSThomas Chou help 4229e39003eSThomas Chou Support NS16550 UART or compatible. This can be enabled in the 4239e39003eSThomas Chou device tree with the correct input clock frequency. If the input 4249e39003eSThomas Chou clock frequency is not defined in the device tree, the macro 4259e39003eSThomas Chou CONFIG_SYS_NS16550_CLK defined in a legacy board header file will 4269e39003eSThomas Chou be used. It can be a constant or a function to get clock, eg, 4279e39003eSThomas Chou get_serial_clock(). 4289e39003eSThomas Chou 429c5f8dd48SAndy Shevchenkoconfig INTEL_MID_SERIAL 430c5f8dd48SAndy Shevchenko bool "Intel MID platform UART support" 431c5f8dd48SAndy Shevchenko depends on DM_SERIAL && OF_CONTROL 432c5f8dd48SAndy Shevchenko depends on INTEL_MID 433c5f8dd48SAndy Shevchenko select SYS_NS16550 434c5f8dd48SAndy Shevchenko help 435c5f8dd48SAndy Shevchenko Select this to enable a UART for Intel MID platforms. 436c5f8dd48SAndy Shevchenko This uses the ns16550 driver as a library. 437c5f8dd48SAndy Shevchenko 4382fc24d53SSimon Glassconfig ROCKCHIP_SERIAL 4392fc24d53SSimon Glass bool "Rockchip on-chip UART support" 4402fc24d53SSimon Glass depends on DM_SERIAL && SPL_OF_PLATDATA 4412fc24d53SSimon Glass help 4422fc24d53SSimon Glass Select this to enable a debug UART for Rockchip devices when using 4437f73ca48STom Rini CONFIG_SPL_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt). 4442fc24d53SSimon Glass This uses the ns16550 driver, converting the platdata from of-platdata 4452fc24d53SSimon Glass to the ns16550 format. 4462fc24d53SSimon Glass 447af282245SSimon Glassconfig SANDBOX_SERIAL 448af282245SSimon Glass bool "Sandbox UART support" 4492ea65f3eSMasahiro Yamada depends on SANDBOX 450af282245SSimon Glass help 451af282245SSimon Glass Select this to enable a seral UART for sandbox. This is required to 452af282245SSimon Glass operate correctly, otherwise you will see no serial output from 453af282245SSimon Glass sandbox. The emulated UART will display to the console and console 454af282245SSimon Glass input will be fed into the UART. This allows you to interact with 455af282245SSimon Glass U-Boot. 456af282245SSimon Glass 457af282245SSimon Glass The operation of the console is controlled by the -t command-line 458af282245SSimon Glass flag. In raw mode, U-Boot sees all characters from the terminal 459af282245SSimon Glass before they are processed, including Ctrl-C. In cooked mode, Ctrl-C 460af282245SSimon Glass is processed by the terminal, and terminates U-Boot. Valid options 461af282245SSimon Glass are: 462af282245SSimon Glass 463af282245SSimon Glass -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot 464af282245SSimon Glass -t raw Raw mode, Ctrl-C is processed by U-Boot 465af282245SSimon Glass -t cooked Cooked mode, Ctrl-C terminates 466af282245SSimon Glass 467ff247b7aSMasahiro Yamadaconfig UNIPHIER_SERIAL 468b6ef3a3fSMasahiro Yamada bool "Support for UniPhier on-chip UART" 4692ea65f3eSMasahiro Yamada depends on ARCH_UNIPHIER 47085dc2fe1SMasahiro Yamada default y 471ff247b7aSMasahiro Yamada help 472b6ef3a3fSMasahiro Yamada If you have a UniPhier based board and want to use the on-chip 473b6ef3a3fSMasahiro Yamada serial ports, say Y to this option. If unsure, say N. 474dcfe4a54SSimon Glass 47554e24d33SMichal Simekconfig XILINX_UARTLITE 47654e24d33SMichal Simek bool "Xilinx Uarlite support" 47780cce262SRicardo Ribalda Delgado depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx) 47854e24d33SMichal Simek help 47954e24d33SMichal Simek If you have a Xilinx based board and want to use the uartlite 48054e24d33SMichal Simek serial ports, say Y to this option. If unsure, say N. 48154e24d33SMichal Simek 482bfcef28aSBeniamino Galvaniconfig MESON_SERIAL 483bfcef28aSBeniamino Galvani bool "Support for Amlogic Meson UART" 484bfcef28aSBeniamino Galvani depends on DM_SERIAL && ARCH_MESON 485bfcef28aSBeniamino Galvani help 486bfcef28aSBeniamino Galvani If you have an Amlogic Meson based board and want to use the on-chip 487bfcef28aSBeniamino Galvani serial ports, say Y to this option. If unsure, say N. 488bfcef28aSBeniamino Galvani 489142a20c3SMateusz Kulikowskiconfig MSM_SERIAL 490142a20c3SMateusz Kulikowski bool "Qualcomm on-chip UART" 491142a20c3SMateusz Kulikowski depends on DM_SERIAL 492142a20c3SMateusz Kulikowski help 493142a20c3SMateusz Kulikowski Support Data Mover UART used on Qualcomm Snapdragon SoCs. 494142a20c3SMateusz Kulikowski It should support all Qualcomm devices with UARTDM version 1.4, 495142a20c3SMateusz Kulikowski for example APQ8016 and MSM8916. 496142a20c3SMateusz Kulikowski Single baudrate is supported in current implementation (115200). 4976985d496SStefan Roese 498d804a5e1SMarcel Ziswilerconfig PXA_SERIAL 499d804a5e1SMarcel Ziswiler bool "PXA serial port support" 500d804a5e1SMarcel Ziswiler help 501d804a5e1SMarcel Ziswiler If you have a machine based on a Marvell XScale PXA2xx CPU you 502d804a5e1SMarcel Ziswiler can enable its onboard serial ports by enabling this option. 503d804a5e1SMarcel Ziswiler 504214a17e6SPatrice Chotardconfig STI_ASC_SERIAL 505214a17e6SPatrice Chotard bool "STMicroelectronics on-chip UART" 506214a17e6SPatrice Chotard depends on DM_SERIAL && ARCH_STI 507214a17e6SPatrice Chotard help 508214a17e6SPatrice Chotard Select this to enable Asynchronous Serial Controller available 509214a17e6SPatrice Chotard on STiH410 SoC. This is a basic implementation, it supports 510214a17e6SPatrice Chotard following baudrate 9600, 19200, 38400, 57600 and 115200. 511214a17e6SPatrice Chotard 512*84e9dcc1SPatrice Chotardconfig STM32X7_SERIAL 513*84e9dcc1SPatrice Chotard bool "STMicroelectronics STM32 SoCs on-chip UART" 514*84e9dcc1SPatrice Chotard depends on DM_SERIAL && STM32F7 515*84e9dcc1SPatrice Chotard help 516*84e9dcc1SPatrice Chotard If you have a machine based on a STM32 F7 you can enable its 517*84e9dcc1SPatrice Chotard onboard serial ports, say Y to this option. If unsure, say N. 518*84e9dcc1SPatrice Chotard 519dd7ff472SChristophe Leroyconfig MPC8XX_CONS 520dd7ff472SChristophe Leroy bool "Console driver for MPC8XX" 521dd7ff472SChristophe Leroy depends on 8xx 522dd7ff472SChristophe Leroy default y 523dd7ff472SChristophe Leroy 524dd7ff472SChristophe Leroychoice 525dd7ff472SChristophe Leroy prompt "Console port" 526dd7ff472SChristophe Leroy default 8xx_CONS_SMC1 527dd7ff472SChristophe Leroy depends on MPC8XX_CONS 528dd7ff472SChristophe Leroy help 529dd7ff472SChristophe Leroy Depending on board, select one serial port 530dd7ff472SChristophe Leroy (CONFIG_8xx_CONS_SMC1 or CONFIG_8xx_CONS_SMC2) 531dd7ff472SChristophe Leroy 532dd7ff472SChristophe Leroyconfig 8xx_CONS_SMC1 533dd7ff472SChristophe Leroy bool "SMC1" 534dd7ff472SChristophe Leroy 535dd7ff472SChristophe Leroyconfig 8xx_CONS_SMC2 536dd7ff472SChristophe Leroy bool "SMC2" 537dd7ff472SChristophe Leroy 538dd7ff472SChristophe Leroyendchoice 539dd7ff472SChristophe Leroy 540dd7ff472SChristophe Leroyconfig SYS_SMC_RXBUFLEN 541dd7ff472SChristophe Leroy int "Console Rx buffer length" 542dd7ff472SChristophe Leroy depends on MPC8XX_CONS 543dd7ff472SChristophe Leroy default 1 544dd7ff472SChristophe Leroy help 545dd7ff472SChristophe Leroy With CONFIG_SYS_SMC_RXBUFLEN it is possible to define 546dd7ff472SChristophe Leroy the maximum receive buffer length for the SMC. 547dd7ff472SChristophe Leroy This option is actual only for 8xx possible. 548dd7ff472SChristophe Leroy If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE 549dd7ff472SChristophe Leroy must be defined, to setup the maximum idle timeout for 550dd7ff472SChristophe Leroy the SMC. 551dd7ff472SChristophe Leroy 552dd7ff472SChristophe Leroyconfig SYS_MAXIDLE 553dd7ff472SChristophe Leroy int "maximum idle timeout" 554dd7ff472SChristophe Leroy depends on MPC8XX_CONS 555dd7ff472SChristophe Leroy default 0 556dd7ff472SChristophe Leroy 557dd7ff472SChristophe Leroyconfig SYS_BRGCLK_PRESCALE 558dd7ff472SChristophe Leroy int "BRG Clock Prescale" 559dd7ff472SChristophe Leroy depends on MPC8XX_CONS 560dd7ff472SChristophe Leroy default 1 561dd7ff472SChristophe Leroy 562dd7ff472SChristophe Leroyconfig SYS_SDSR 563dd7ff472SChristophe Leroy hex "SDSR Value" 564dd7ff472SChristophe Leroy depends on MPC8XX_CONS 565dd7ff472SChristophe Leroy default 0x83 566dd7ff472SChristophe Leroy 567dd7ff472SChristophe Leroyconfig SYS_SDMR 568dd7ff472SChristophe Leroy hex "SDMR Value" 569dd7ff472SChristophe Leroy depends on MPC8XX_CONS 570dd7ff472SChristophe Leroy default 0 571dd7ff472SChristophe Leroy 5720b11dbf7SMasahiro Yamadaendmenu 573