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Masahiro Yamadacc85b7b2015-07-26 02:46:26 +09001#
2# Serial device configuration
3#
4
Simon Glass388f78e2021-08-08 12:20:13 -06005menuconfig SERIAL
6 bool "Serial"
7 default y
8 help
9 Enable support for serial drivers. This allows use of a serial UART
10 for displaying messages while U-Boot is running. It also brings in
11 printf() and panic() functions. This should normally be enabled
12 unless there are space reasons not to. If you just need to disable
13 the console you can adjust the stdout environment variable or use
14 SILENT_CONSOLE.
15
16if SERIAL
Masahiro Yamadacc85b7b2015-07-26 02:46:26 +090017
Philipp Tomsich29c8bc02017-03-17 20:34:53 +010018config BAUDRATE
19 int "Default baudrate"
20 default 115200
21 help
22 Select a default baudrate, where "default" has a driver-specific
23 meaning of either setting the baudrate for the early debug UART
24 in the SPL stage (most drivers) or for choosing a default baudrate
25 in the absence of an environment setting (serial_mxc.c).
26
Algapally Santosh Sagardf178992023-09-21 16:50:43 +053027config OF_SERIAL_BAUD
28 bool "Fetch serial baudrate from device tree"
29 depends on DM_SERIAL && SPL_ENV_SUPPORT
30 select DEFAULT_ENV_IS_RW
31 help
32 Select this to enable fetching and setting of the baudrate
33 configured in the DT. Replace the default baudrate with the DT
34 baudrate and also set it to the environment.
35
Algapally Santosh Sagar0ed240e2023-09-21 16:50:42 +053036config DEFAULT_ENV_IS_RW
37 bool "Make default environment as writable"
38 help
39 Select this to enable to make default environment writable. This
40 allows modifying the default environment.
41
Hans de Goede04f80942015-08-08 17:45:18 +020042config REQUIRE_SERIAL_CONSOLE
43 bool "Require a serial port for console"
44 # Running without a serial console is not supported by the
45 # non-dm serial code
46 depends on DM_SERIAL
47 default y
48 help
49 Require a serial port for the console, and panic if none is found
50 during serial port initialization (default y). Set this to n on
51 boards which have no debug serial port whatsoever.
52
Tom Rinie69ba982018-03-06 19:02:27 -050053config SPECIFY_CONSOLE_INDEX
54 bool "Specify the port number used for console"
55 default y if !DM_SERIAL || (SPL && !SPL_DM_SERIAL) || \
56 (TPL && !TPL_DM_SERIAL)
57 help
58 In various cases, we need to specify which of the UART devices that
59 a board or SoC has available are to be used for the console device
60 in U-Boot.
61
Simon Glass30a13492015-12-13 21:36:58 -070062config SERIAL_PRESENT
63 bool "Provide a serial driver"
64 depends on DM_SERIAL
65 default y
66 help
67 In very space-constrained devices even the full UART driver is too
68 large. In this case the debug UART can still be used in some cases.
69 This option enables the full UART in U-Boot, so if is it disabled,
70 the full UART driver will be omitted, thus saving space.
71
72config SPL_SERIAL_PRESENT
73 bool "Provide a serial driver in SPL"
Adam Fordac4d80e2019-08-24 13:50:34 -050074 depends on DM_SERIAL && SPL
Simon Glass30a13492015-12-13 21:36:58 -070075 default y
76 help
77 In very space-constrained devices even the full UART driver is too
78 large. In this case the debug UART can still be used in some cases.
79 This option enables the full UART in SPL, so if is it disabled,
80 the full UART driver will be omitted, thus saving space.
81
Simon Glass60573922018-10-01 12:22:20 -060082config TPL_SERIAL_PRESENT
83 bool "Provide a serial driver in TPL"
Adam Fordac4d80e2019-08-24 13:50:34 -050084 depends on DM_SERIAL && TPL
Simon Glass60573922018-10-01 12:22:20 -060085 default y
86 help
87 In very space-constrained devices even the full UART driver is too
88 large. In this case the debug UART can still be used in some cases.
89 This option enables the full UART in TPL, so if is it disabled,
90 the full UART driver will be omitted, thus saving space.
91
Simon Glasse7ca7da2022-04-30 00:56:53 -060092config VPL_SERIAL_PRESENT
93 bool "Provide a serial driver in VPL"
94 depends on DM_SERIAL && VPL
95 default y
96 help
97 In very space-constrained devices even the full UART driver is too
98 large. In this case the debug UART can still be used in some cases.
99 This option enables the full UART in TPL, so if is it disabled,
100 the full UART driver will be omitted, thus saving space.
101
Mylène Josserand80b96442017-04-02 12:59:11 +0200102config CONS_INDEX
103 int "UART used for console"
Tom Rinie69ba982018-03-06 19:02:27 -0500104 depends on SPECIFY_CONSOLE_INDEX
105 range 0 6
Mylène Josserand80b96442017-04-02 12:59:11 +0200106 default 1
107 help
Tom Rinie69ba982018-03-06 19:02:27 -0500108 Set this to match the UART number of the serial console.
Mylène Josserand80b96442017-04-02 12:59:11 +0200109
Masahiro Yamada57ad8ee2014-10-23 22:26:09 +0900110config DM_SERIAL
111 bool "Enable Driver Model for serial drivers"
112 depends on DM
Sean Anderson08c854a2019-12-17 21:40:09 -0500113 select SYS_MALLOC_F
Masahiro Yamada57ad8ee2014-10-23 22:26:09 +0900114 help
Simon Glassd8b771d2015-02-05 21:41:35 -0700115 Enable driver model for serial. This replaces
116 drivers/serial/serial.c with the serial uclass, which
117 implements serial_putc() etc. The uclass interface is
118 defined in include/serial.h.
Masahiro Yamada4261c642014-10-23 22:26:11 +0900119
Stefan Roese02072832017-08-16 17:37:16 +0200120config SERIAL_RX_BUFFER
121 bool "Enable RX buffer for serial input"
122 depends on DM_SERIAL
123 help
124 Enable RX buffer support for the serial driver. This enables
125 pasting longer strings, even when the RX FIFO of the UART is
126 not big enough (e.g. 16 bytes on the normal NS16550).
127
128config SERIAL_RX_BUFFER_SIZE
129 int "RX buffer size"
130 depends on SERIAL_RX_BUFFER
131 default 256
132 help
133 The size of the RX buffer (needs to be power of 2)
134
Sean Andersonaa22f972022-03-22 16:59:34 -0400135config SERIAL_PUTS
136 bool "Enable printing strings all at once"
137 depends on DM_SERIAL
138 help
139 Some serial drivers are much more efficient when printing multiple
140 characters at once rather than printing characters individually. This
141 can be because they can load a fifo, or because individual print
142 calls have a constant overhead. With this option set, the serial
143 subsystem will try to provide serial drivers with as many characters
144 at once as possible, instead of printing characters one by one. Most
145 serial drivers do not need this config to print efficiently. If
146 unsure, say N.
147
Alexander Grafc8bda542018-01-29 13:57:20 +0100148config SERIAL_SEARCH_ALL
149 bool "Search for serial devices after default one failed"
150 depends on DM_SERIAL
151 help
152 The serial subsystem only searches for a single serial device
153 that was instantiated, but does not check whether it was probed
154 correctly. With this option set, we make successful probing
155 mandatory and search for fallback serial devices if the default
156 device does not work.
157
158 If unsure, say N.
159
Vabhav Sharma42149c92020-12-09 10:42:04 +0530160config SERIAL_PROBE_ALL
161 bool "Probe all available serial devices"
162 depends on DM_SERIAL
Vabhav Sharma42149c92020-12-09 10:42:04 +0530163 help
164 The serial subsystem only probes for a single serial device,
165 but does not probe for other remaining serial devices.
166 With this option set, we make probing and searching for
167 all available devices optional.
168 Normally, U-Boot talks to one serial port at a time, but SBSA
169 compliant UART devices like PL011 require initialization
170 by firmware and to let the kernel use serial port for sending
171 and receiving the characters.
172
173 If unsure, say N.
174
Simon Glassf9512aa2017-04-02 09:50:32 -0600175config SPL_DM_SERIAL
Heiko Schocherb0b588f2017-06-21 06:23:10 +0200176 bool "Enable Driver Model for serial drivers in SPL"
Tom Rinie69ba982018-03-06 19:02:27 -0500177 depends on DM_SERIAL && SPL_DM
178 default y
Simon Glassf9512aa2017-04-02 09:50:32 -0600179 help
180 Enable driver model for serial in SPL. This replaces
181 drivers/serial/serial.c with the serial uclass, which
182 implements serial_putc() etc. The uclass interface is
183 defined in include/serial.h.
184
185config TPL_DM_SERIAL
Heiko Schocherb0b588f2017-06-21 06:23:10 +0200186 bool "Enable Driver Model for serial drivers in TPL"
Thomas Hebbc850c6a2019-11-10 08:23:55 -0800187 depends on DM_SERIAL && TPL_DM
Simon Glassf9512aa2017-04-02 09:50:32 -0600188 default y if TPL && DM_SERIAL
189 help
190 Enable driver model for serial in TPL. This replaces
191 drivers/serial/serial.c with the serial uclass, which
192 implements serial_putc() etc. The uclass interface is
193 defined in include/serial.h.
194
Simon Glasse7ca7da2022-04-30 00:56:53 -0600195config VPL_DM_SERIAL
196 bool "Enable Driver Model for serial drivers in VPL"
197 depends on DM_SERIAL
198 default y if VPL && DM_SERIAL
199 help
200 Enable driver model for serial in VPL. This replaces
201 drivers/serial/serial.c with the serial uclass, which
202 implements serial_putc() etc. The uclass interface is
203 defined in include/serial.h.
204
Simon Glassbac6fd82015-01-26 18:27:07 -0700205config DEBUG_UART
206 bool "Enable an early debug UART for debugging"
207 help
208 The debug UART is intended for use very early in U-Boot to debug
209 problems when an ICE or other debug mechanism is not available.
210
211 To use it you should:
212 - Make sure your UART supports this interface
213 - Enable CONFIG_DEBUG_UART
214 - Enable the CONFIG for your UART to tell it to provide this interface
215 (e.g. CONFIG_DEBUG_UART_NS16550)
216 - Define the required settings as needed (see below)
217 - Call debug_uart_init() before use
218 - Call debug_uart_putc() to output a character
219
220 Depending on your platform it may be possible to use this UART before
221 a stack is available.
222
223 If your UART does not support this interface you can probably add
224 support quite easily. Remember that you cannot use driver model and
225 it is preferred to use no stack.
226
227 You must not use this UART once driver model is working and the
228 serial drivers are up and running (done in serial_init()). Otherwise
229 the drivers may conflict and you will get strange output.
230
Simon Glass27afb522015-01-26 18:27:09 -0700231choice
232 prompt "Select which UART will provide the debug UART"
233 depends on DEBUG_UART
Heinrich Schuchardt444c6c52023-09-04 13:24:04 +0200234 default DEBUG_SBI_CONSOLE if RISCV_SMODE
Thomas Choud0738412015-11-19 21:48:03 +0800235 default DEBUG_UART_NS16550
Simon Glass27afb522015-01-26 18:27:09 -0700236
Thomas Chou26066df2015-10-23 07:36:37 +0800237config DEBUG_UART_ALTERA_JTAGUART
238 bool "Altera JTAG UART"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200239 depends on ALTERA_JTAG_UART
Thomas Chou26066df2015-10-23 07:36:37 +0800240 help
241 Select this to enable a debug UART using the altera_jtag_uart driver.
242 You will need to provide parameters to make this work. The driver will
243 be available until the real driver model serial is running.
244
Thomas Chou6917a5d2015-10-21 21:26:54 +0800245config DEBUG_UART_ALTERA_UART
246 bool "Altera UART"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200247 depends on ALTERA_UART
Thomas Chou6917a5d2015-10-21 21:26:54 +0800248 help
249 Select this to enable a debug UART using the altera_uart driver.
250 You will need to provide parameters to make this work. The driver will
251 be available until the real driver model serial is running.
252
Wills Wangcb48c6d2016-03-16 16:59:57 +0800253config DEBUG_UART_AR933X
254 bool "QCA/Atheros ar933x"
255 depends on AR933X_UART
256 help
257 Select this to enable a debug UART using the ar933x uart driver.
258 You will need to provide parameters to make this work. The
259 driver will be available until the real driver model serial is
260 running.
261
Alexey Brodkineede1672018-05-21 16:42:07 +0300262config DEBUG_ARC_SERIAL
263 bool "ARC UART"
264 depends on ARC_SERIAL
265 help
266 Select this to enable a debug UART using the ARC UART driver.
267 You will need to provide parameters to make this work. The
268 driver will be available until the real driver model serial is
269 running.
270
Wenyou Yang6b611e62016-10-17 09:49:55 +0800271config DEBUG_UART_ATMEL
272 bool "Atmel USART"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200273 depends on ATMEL_USART
Wenyou Yang6b611e62016-10-17 09:49:55 +0800274 help
275 Select this to enable a debug UART using the atmel usart driver. You
276 will need to provide parameters to make this work. The driver will
277 be available until the real driver-model serial is running.
278
Álvaro Fernández Rojas842cfaf2017-04-25 00:39:16 +0200279config DEBUG_UART_BCM6345
280 bool "BCM6345 UART"
281 depends on BCM6345_SERIAL
282 help
283 Select this to enable a debug UART on BCM6345 SoCs. You
284 will need to provide parameters to make this work. The driver will
285 be available until the real driver model serial is running.
286
Simon Glass27afb522015-01-26 18:27:09 -0700287config DEBUG_UART_NS16550
288 bool "ns16550"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200289 depends on SYS_NS16550
Simon Glass27afb522015-01-26 18:27:09 -0700290 help
291 Select this to enable a debug UART using the ns16550 driver. You
292 will need to provide parameters to make this work. The driver will
293 be available until the real driver model serial is running.
294
Simon Glass5a991bd2015-08-04 12:33:40 -0600295config DEBUG_EFI_CONSOLE
296 bool "EFI"
297 depends on EFI_APP
298 help
299 Select this to enable a debug console which calls back to EFI to
300 output to the console. This can be useful for early debugging of
301 U-Boot when running on top of EFI (Extensive Firmware Interface).
302 This is a type of BIOS used by PCs.
303
Samuel Holland4c33c262021-09-12 10:56:09 -0500304config DEBUG_SBI_CONSOLE
305 bool "SBI"
Heinrich Schuchardt444c6c52023-09-04 13:24:04 +0200306 depends on RISCV_SMODE
Samuel Holland4c33c262021-09-12 10:56:09 -0500307 help
308 Select this to enable a debug console which calls back to SBI to
309 output to the console. This can be useful for early debugging of
310 U-Boot when running on top of SBI (Supervisor Binary Interface).
Heinrich Schuchardt444c6c52023-09-04 13:24:04 +0200311 This implementation of the debug UART is not available while in
312 M-mode (e.g. during SPL).
Samuel Holland4c33c262021-09-12 10:56:09 -0500313
Simon Glass74afb292015-07-02 18:15:54 -0600314config DEBUG_UART_S5P
315 bool "Samsung S5P"
Mark Kettenis835cb5d2021-10-23 16:58:04 +0200316 depends on ARCH_APPLE || ARCH_EXYNOS || ARCH_S5PC1XX
Simon Glass74afb292015-07-02 18:15:54 -0600317 help
318 Select this to enable a debug UART using the serial_s5p driver. You
319 will need to provide parameters to make this work. The driver will
320 be available until the real driver-model serial is running.
321
Caleb Connollya86d23a2024-02-26 17:26:11 +0000322config DEBUG_UART_MSM
323 bool "Qualcomm QUP UART debug"
Robert Markof1fcc6c2024-04-15 12:49:25 +0200324 depends on ARCH_SNAPDRAGON || ARCH_IPQ40XX
Caleb Connollya86d23a2024-02-26 17:26:11 +0000325 help
326 Select this to enable a debug UART using the serial_msm driver. You
327 will need to provide parameters to make this work. The driver will
328 be available until the real driver-model serial is running.
329
Dzmitry Sankouskif5be5c82021-10-17 13:44:27 +0300330config DEBUG_UART_MSM_GENI
331 bool "Qualcomm snapdragon"
332 depends on ARCH_SNAPDRAGON
333 help
334 Select this to enable a debug UART using the serial_msm driver. You
335 will need to provide parameters to make this work. The driver will
336 be available until the real driver-model serial is running.
337
Beniamino Galvanid1037e42016-05-08 08:30:16 +0200338config DEBUG_UART_MESON
339 bool "Amlogic Meson"
340 depends on MESON_SERIAL
341 help
342 Select this to enable a debug UART using the serial_meson driver. You
343 will need to provide parameters to make this work. The driver will
344 be available until the real driver-model serial is running.
345
Michal Simek8af618b2015-12-14 16:55:10 +0100346config DEBUG_UART_UARTLITE
347 bool "Xilinx Uartlite"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200348 depends on XILINX_UARTLITE
Michal Simek8af618b2015-12-14 16:55:10 +0100349 help
350 Select this to enable a debug UART using the serial_uartlite driver.
351 You will need to provide parameters to make this work. The driver will
352 be available until the real driver-model serial is running.
353
Michal Simekb3cc2602016-02-23 10:02:28 +0100354config DEBUG_UART_ARM_DCC
355 bool "ARM DCC"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200356 depends on ARM_DCC
Michal Simekb3cc2602016-02-23 10:02:28 +0100357 help
358 Select this to enable a debug UART using the ARM JTAG DCC port.
359 The DCC port can be used for very early debugging and doesn't require
360 any additional setting like address/baudrate/clock. On systems without
361 any serial interface this is the easiest way how to get console.
362 Every ARM core has own DCC port which is the part of debug interface.
363 This port is available at least on ARMv6, ARMv7, ARMv8 and XScale
364 architectures.
365
Stefan Roese027276a2016-05-17 16:36:00 +0200366config DEBUG_MVEBU_A3700_UART
367 bool "Marvell Armada 3700"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200368 depends on MVEBU_A3700_UART
Stefan Roese027276a2016-05-17 16:36:00 +0200369 help
370 Select this to enable a debug UART using the serial_mvebu driver. You
371 will need to provide parameters to make this work. The driver will
372 be available until the real driver-model serial is running.
373
Simon Glass091f6a32015-10-17 19:41:22 -0600374config DEBUG_UART_ZYNQ
375 bool "Xilinx Zynq"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200376 depends on ZYNQ_SERIAL
Simon Glass091f6a32015-10-17 19:41:22 -0600377 help
Michal Simek49e12762015-12-01 14:29:34 +0100378 Select this to enable a debug UART using the serial_zynq driver. You
Simon Glass091f6a32015-10-17 19:41:22 -0600379 will need to provide parameters to make this work. The driver will
380 be available until the real driver-model serial is running.
381
Francois Retiefd18eb7b2015-10-29 12:55:34 +0200382config DEBUG_UART_APBUART
383 depends on LEON3
384 bool "Gaisler APBUART"
385 help
386 Select this to enable a debug UART using the serial_leon3 driver. You
387 will need to provide parameters to make this work. The driver will
388 be available until the real driver model serial is running.
389
Sergey Temerkhanov5710d7e2015-10-14 09:54:24 -0700390config DEBUG_UART_PL010
391 bool "pl010"
Tom Rini0ba2f372021-05-22 08:47:08 -0400392 depends on PL01X_SERIAL
Sergey Temerkhanov5710d7e2015-10-14 09:54:24 -0700393 help
394 Select this to enable a debug UART using the pl01x driver with the
395 PL010 UART type. You will need to provide parameters to make this
396 work. The driver will be available until the real driver model
397 serial is running.
398
399config DEBUG_UART_PL011
400 bool "pl011"
Michal Simekceedd3a2021-06-24 13:36:23 +0200401 depends on PL01X_SERIAL || PL011_SERIAL
Sergey Temerkhanov5710d7e2015-10-14 09:54:24 -0700402 help
403 Select this to enable a debug UART using the pl01x driver with the
404 PL011 UART type. You will need to provide parameters to make this
405 work. The driver will be available until the real driver model
406 serial is running.
407
Paul Thacker1dc42832016-01-28 15:30:14 +0530408config DEBUG_UART_PIC32
409 bool "Microchip PIC32"
410 depends on PIC32_SERIAL
411 help
412 Select this to enable a debug UART using the serial_pic32 driver. You
413 will need to provide parameters to make this work. The driver will
414 be available until the real driver model serial is running.
415
Jagan Tekicf6db162017-06-06 05:31:51 +0000416config DEBUG_UART_MXC
417 bool "IMX Serial port"
418 depends on MXC_UART
419 help
420 Select this to enable a debug UART using the serial_mxc driver. You
421 will need to provide parameters to make this work. The driver will
422 be available until the real driver model serial is running.
423
Simon Glasse3057f32018-10-01 11:55:15 -0600424config DEBUG_UART_SANDBOX
425 bool "sandbox"
426 depends on SANDBOX_SERIAL
427 help
428 Select this to enable the debug UART using the sandbox driver. This
429 provides basic serial output from the console without needing to
430 start up driver model. The driver will be available until the real
431 driver model serial is running.
432
Sean Andersond4f131a2022-03-22 16:59:24 -0400433config DEBUG_UART_SEMIHOSTING
434 bool "semihosting"
435 depends on SEMIHOSTING_SERIAL
436 help
437 Select this to enable the debug UART using the semihosting driver.
438 This provides basic serial output from the console without needing to
439 start up driver model. The driver will be available until the real
440 driver model serial is running.
441
Marek Vasut98ae2812023-02-28 22:17:22 +0100442config DEBUG_UART_SCIF
443 bool "Renesas SCIF UART"
Marek Vasut6468c4c2024-02-27 17:05:55 +0100444 depends on SH || ARCH_RENESAS
Marek Vasut98ae2812023-02-28 22:17:22 +0100445 help
446 Select this to enable a debug UART using the serial_sh driver. You
447 will need to provide parameters to make this work. The driver will
448 be available until the real driver-model serial is running.
449
Anup Patel4b1d68f2018-12-15 11:35:15 +0530450config DEBUG_UART_SIFIVE
451 bool "SiFive UART"
Michal Simekf0410172020-07-10 12:41:13 +0200452 depends on SIFIVE_SERIAL
Anup Patel4b1d68f2018-12-15 11:35:15 +0530453 help
454 Select this to enable a debug UART using the serial_sifive driver. You
455 will need to provide parameters to make this work. The driver will
456 be available until the real driver-model serial is running.
457
Patrick Delaunayab8e5d22018-05-17 14:50:42 +0200458config DEBUG_UART_STM32
459 bool "STMicroelectronics STM32"
460 depends on STM32_SERIAL
461 help
462 Select this to enable a debug UART using the serial_stm32 driver
463 You will need to provide parameters to make this work.
464 The driver will be available until the real driver model
465 serial is running.
466
Masahiro Yamada52f0c512016-03-18 16:41:52 +0900467config DEBUG_UART_UNIPHIER
468 bool "UniPhier on-chip UART"
469 depends on ARCH_UNIPHIER
470 help
471 Select this to enable a debug UART using the UniPhier on-chip UART.
472 You will need to provide DEBUG_UART_BASE to make this work. The
473 driver will be available until the real driver-model serial is
474 running.
475
Lokesh Vutla771d69c2017-04-22 15:57:25 +0530476config DEBUG_UART_OMAP
477 bool "OMAP uart"
Michal Simek8da3a6b2020-05-28 12:05:12 +0200478 depends on OMAP_SERIAL
Lokesh Vutla771d69c2017-04-22 15:57:25 +0530479 help
480 Select this to enable a debug UART using the omap ns16550 driver.
481 You will need to provide parameters to make this work. The driver
482 will be available until the real driver model serial is running.
483
developer90af58f2018-11-15 10:08:02 +0800484config DEBUG_UART_MTK
485 bool "MediaTek High-speed UART"
486 depends on MTK_SERIAL
487 help
488 Select this to enable a debug UART using the MediaTek High-speed
489 UART driver.
490 You will need to provide parameters to make this work. The
491 driver will be available until the real driver model serial is
492 running.
493
developere076b9e2020-11-12 16:36:05 +0800494config DEBUG_UART_MT7620
495 bool "UART driver for MediaTek MT7620 and earlier SoCs"
496 depends on MT7620_SERIAL
497 help
498 Select this to enable a debug UART using the UART driver for
499 MediaTek MT7620 and earlier SoCs.
500 You will need to provide parameters to make this work. The
501 driver will be available until the real driver model serial is
502 running.
503
Jiaxun Yang076c3a42024-06-18 14:56:06 +0100504config DEBUG_UART_XTENSA_SEMIHOSTING
505 bool "Xtensa semihosting"
506 depends on XTENSA_SEMIHOSTING_SERIAL
507 help
508 Select this to enable the debug UART using the Xtensa semihosting driver.
509 This provides basic serial output from the console without needing to
510 start up driver model. The driver will be available until the real
511 driver model serial is running.
512
Simon Glass27afb522015-01-26 18:27:09 -0700513endchoice
514
Simon Glassbac6fd82015-01-26 18:27:07 -0700515config DEBUG_UART_BASE
516 hex "Base address of UART"
Tom Riniae965f22020-10-23 09:15:55 -0400517 depends on DEBUG_UART
Tom Rinif18679c2023-08-02 11:09:43 -0400518 default 0x0 if DEBUG_SBI_CONSOLE
519 default 0x0 if DEBUG_UART_SANDBOX
Michal Simek3b9271a2022-06-06 09:44:01 +0200520 default 0xff000000 if DEBUG_UART_ZYNQ && ARCH_ZYNQMP
521 default 0xe0000000 if DEBUG_UART_ZYNQ && ARCH_ZYNQ
Michal Simek833e8d62025-03-13 13:23:46 +0100522 default 0xff000000 if DEBUG_UART_PL011 && ARCH_VERSAL
523 default 0xf1920000 if DEBUG_UART_PL011 && (ARCH_VERSAL_NET || ARCH_VERSAL2)
Simon Glassbac6fd82015-01-26 18:27:07 -0700524 help
525 This is the base address of your UART for memory-mapped UARTs.
526
527 A default should be provided by your board, but if not you will need
528 to use the correct value here.
529
Pali Rohárb4e29802022-05-06 11:05:15 +0200530config SPL_DEBUG_UART_BASE
531 hex "Base address of UART for SPL"
532 depends on SPL && DEBUG_UART
533 default DEBUG_UART_BASE
534 help
535 This is the base address of your UART for memory-mapped UARTs for SPL.
536
Pali Rohár784f5692022-05-16 18:49:09 +0200537config TPL_DEBUG_UART_BASE
538 hex "Base address of UART for TPL"
539 depends on TPL && DEBUG_UART
540 default DEBUG_UART_BASE
541 help
542 This is the base address of your UART for memory-mapped UARTs for TPL.
543
Simon Glass35a89562024-09-20 09:24:32 +0200544config VPL_DEBUG_UART_BASE
545 hex "Base address of UART for VPL"
546 depends on VPL && DEBUG_UART
547 default DEBUG_UART_BASE
548 help
549 This is the base address of your UART for memory-mapped UARTs for VPL.
550
Simon Glassbac6fd82015-01-26 18:27:07 -0700551config DEBUG_UART_CLOCK
552 int "UART input clock"
Tom Riniae965f22020-10-23 09:15:55 -0400553 depends on DEBUG_UART
Samuel Holland4c33c262021-09-12 10:56:09 -0500554 default 0 if DEBUG_SBI_CONSOLE
Simon Glasse3057f32018-10-01 11:55:15 -0600555 default 0 if DEBUG_UART_SANDBOX
Marek Behún6e0e23c2021-07-09 17:40:59 +0200556 default 0 if DEBUG_MVEBU_A3700_UART
Michal Simek3b9271a2022-06-06 09:44:01 +0200557 default 100000000 if DEBUG_UART_ZYNQ && ARCH_ZYNQMP
558 default 50000000 if DEBUG_UART_ZYNQ && ARCH_ZYNQ
Michal Simek833e8d62025-03-13 13:23:46 +0100559 default 100000000 if DEBUG_UART_PL011 && (ARCH_VERSAL || ARCH_VERSAL_NET || ARCH_VERSAL2)
Simon Glassbac6fd82015-01-26 18:27:07 -0700560 help
561 The UART input clock determines the speed of the internal UART
562 circuitry. The baud rate is derived from this by dividing the input
563 clock down.
564
565 A default should be provided by your board, but if not you will need
566 to use the correct value here.
567
Simon Glass54111292015-02-27 22:06:25 -0700568config DEBUG_UART_SHIFT
569 int "UART register shift"
Tom Riniae965f22020-10-23 09:15:55 -0400570 depends on DEBUG_UART
Simon Glass54111292015-02-27 22:06:25 -0700571 default 0 if DEBUG_UART
572 help
573 Some UARTs (notably ns16550) support different register layouts
574 where the registers are spaced either as bytes, words or some other
575 value. Use this value to specify the shift to use, where 0=byte
576 registers, 2=32-bit word registers, etc.
577
Simon Glassc52be122015-10-18 19:51:24 -0600578config DEBUG_UART_BOARD_INIT
579 bool "Enable board-specific debug UART init"
580 depends on DEBUG_UART
581 help
582 Some boards need to set things up before the debug UART can be used.
583 On these boards a call to debug_uart_init() is insufficient. When
584 this option is enabled, the function board_debug_uart_init() will
585 be called when debug_uart_init() is called. You can put any code
586 here that is needed to set up the UART ready for use, such as set
587 pin multiplexing or enable clocks.
588
Simon Glass1f7338a2015-10-18 19:51:25 -0600589config DEBUG_UART_ANNOUNCE
590 bool "Show a message when the debug UART starts up"
591 depends on DEBUG_UART
592 help
593 Enable this option to show a message when the debug UART is ready
594 for use. You will see a message like "<debug_uart> " as soon as
595 U-Boot has the UART ready for use (i.e. your code calls
596 debug_uart_init()). This can be useful just as a check that
597 everything is working.
598
Sergey Temerkhanov5710d7e2015-10-14 09:54:24 -0700599config DEBUG_UART_SKIP_INIT
600 bool "Skip UART initialization"
Simon Goldschmidt03a96832019-01-09 20:27:09 +0100601 depends on DEBUG_UART
Sergey Temerkhanov5710d7e2015-10-14 09:54:24 -0700602 help
603 Select this if the UART you want to use for debug output is already
604 initialized by the time U-Boot starts its execution.
605
Simon Goldschmidte03ad212019-01-09 20:35:31 +0100606config DEBUG_UART_NS16550_CHECK_ENABLED
607 bool "Check if UART is enabled on output"
608 depends on DEBUG_UART
609 depends on DEBUG_UART_NS16550
610 help
611 Select this if puts()/putc() might be called before the debug UART
612 has been initialized. If this is disabled, putc() might sit in a
613 tight loop if it is called before debug_uart_init() has been called.
614
615 Note that this does not work for every ns16550-compatible UART and
616 so has to be enabled carefully or you might notice lost characters.
617
Thomas Chou26066df2015-10-23 07:36:37 +0800618config ALTERA_JTAG_UART
619 bool "Altera JTAG UART support"
620 depends on DM_SERIAL
621 help
622 Select this to enable an JTAG UART for Altera devices.The JTAG UART
623 core implements a method to communicate serial character streams
624 between a host PC and a Qsys system on an Altera FPGA. Please find
625 details on the "Embedded Peripherals IP User Guide" of Altera.
626
627config ALTERA_JTAG_UART_BYPASS
628 bool "Bypass output when no connection"
629 depends on ALTERA_JTAG_UART
630 help
631 Bypass console output and keep going even if there is no JTAG
632 terminal connection with the host. The console output will resume
633 once the JTAG terminal is connected. Without the bypass, the console
634 output will wait forever until a JTAG terminal is connected. If you
635 not are sure, say Y.
636
Thomas Chou6917a5d2015-10-21 21:26:54 +0800637config ALTERA_UART
638 bool "Altera UART support"
639 depends on DM_SERIAL
640 help
641 Select this to enable an UART for Altera devices. Please find
642 details on the "Embedded Peripherals IP User Guide" of Altera.
643
Wills Wangcb48c6d2016-03-16 16:59:57 +0800644config AR933X_UART
645 bool "QCA/Atheros ar933x UART support"
646 depends on DM_SERIAL && SOC_AR933X
647 help
648 Select this to enable UART support for QCA/Atheros ar933x
649 devices. This driver uses driver model and requires a device
650 tree binding to operate, please refer to the document at
651 doc/device-tree-bindings/serial/qca,ar9330-uart.txt.
652
Alexey Brodkinb9a0a422018-05-21 16:40:05 +0300653config ARC_SERIAL
654 bool "ARC UART support"
655 depends on DM_SERIAL
656 help
657 Select this to enable support for ARC UART now typically
658 only used in Synopsys DesignWare ARC simulators like nSIM.
659
Tom Rini0f73ac62020-06-02 17:26:33 -0400660config ARM_DCC
661 bool "ARM Debug Communication Channel (DCC) as UART support"
662 depends on ARM
663 help
664 Select this to enable using the ARM DCC as a form of UART.
665
Wenyou Yang58d44482016-10-17 09:49:54 +0800666config ATMEL_USART
667 bool "Atmel USART support"
668 help
669 Select this to enable USART support for Atmel SoCs. It can be
670 configured in the device tree, and input clock frequency can
671 be got from the clk node.
672
Stefan Roeseb1f3da82019-04-03 15:24:19 +0200673config SPL_UART_CLOCK
674 int "SPL fixed UART input clock"
675 depends on ATMEL_USART && SPL && !SPL_CLK
676 default 132096000 if ARCH_AT91
677 help
678 Provide a fixed clock value as input to the UART controller. This
679 might be needed on platforms which can't enable CONFIG_SPL_CLK
680 because of SPL image size restrictions.
681
Alexander Graf1b442952018-01-25 12:05:53 +0100682config BCM283X_MU_SERIAL
683 bool "Support for BCM283x Mini-UART"
684 depends on DM_SERIAL && ARCH_BCM283X
685 default y
686 help
687 Select this to enable Mini-UART support on BCM283X family of SoCs.
688
Alexander Grafa73b0ec2018-01-25 12:05:55 +0100689config BCM283X_PL011_SERIAL
690 bool "Support for BCM283x PL011 UART"
691 depends on PL01X_SERIAL && ARCH_BCM283X
692 default y
693 help
694 Select this to enable an overriding PL011 driver for BCM283X SoCs
695 that supports automatic disable, so that it only gets used when
696 the UART is actually muxed.
697
Álvaro Fernández Rojas842cfaf2017-04-25 00:39:16 +0200698config BCM6345_SERIAL
699 bool "Support for BCM6345 UART"
Álvaro Fernández Rojas4ab29872018-12-01 18:42:09 +0100700 depends on DM_SERIAL
Álvaro Fernández Rojas842cfaf2017-04-25 00:39:16 +0200701 help
702 Select this to enable UART on BCM6345 SoCs.
703
Simon Glass4d221072019-12-19 17:58:20 -0700704config COREBOOT_SERIAL
705 bool "Coreboot UART support"
706 depends on DM_SERIAL
707 default y if SYS_COREBOOT
708 select SYS_NS16550
709 help
710 Select this to enable a ns16550-style UART where the platform data
711 comes from the coreboot 'sysinfo' tables. This allows U-Boot to have
712 a serial console on any platform without needing to change the
713 device tree, etc.
714
Simon Glass684bc742023-05-04 16:55:00 -0600715config COREBOOT_SERIAL_FROM_DBG2
716 bool "Obtain UART from ACPI tables"
717 depends on COREBOOT_SERIAL
Simon Glassa2ee2262023-09-19 21:00:07 -0600718 default y
Simon Glass684bc742023-05-04 16:55:00 -0600719 help
720 Select this to try to find a DBG2 record in the ACPI tables, in the
721 event that coreboot does not provide information about the UART in the
722 normal sysinfo tables. This provides a useful fallback when serial
723 is not enabled in coreboot.
724
Jason Liadca83a2020-01-30 12:34:58 -0800725config CORTINA_UART
726 bool "Cortina UART support"
727 depends on DM_SERIAL
728 help
729 Select this to enable UART support for Cortina-Access UART devices
730 found on CAxxxx SoCs.
731
Tuomas Tynkkynenf2c84702018-04-09 04:34:34 +0300732config FSL_LINFLEXUART
733 bool "Freescale Linflex UART support"
734 depends on DM_SERIAL
735 help
736 Select this to enable the Linflex serial module found on some
737 NXP SoCs like S32V234.
738
Bin Meng4409dcf2016-01-13 19:39:00 -0800739config FSL_LPUART
740 bool "Freescale LPUART support"
741 help
742 Select this to enable a Low Power UART for Freescale VF610 and
743 QorIQ Layerscape devices.
744
Tom Rini037415a2022-03-23 17:20:00 -0400745config LPUART
746 bool "Use the LPUART as console"
747 depends on FSL_LPUART
748
Stefan Roese027276a2016-05-17 16:36:00 +0200749config MVEBU_A3700_UART
750 bool "UART support for Armada 3700"
Stefan Roese027276a2016-05-17 16:36:00 +0200751 help
752 Choose this option to add support for UART driver on the Marvell
753 Armada 3700 SoC. The base address is configured via DT.
754
Angelo Dureghello6d542f32019-03-13 21:46:49 +0100755config MCFUART
756 bool "Freescale ColdFire UART support"
757 help
758 Choose this option to add support for UART driver on the ColdFire
759 SoC's family. The serial communication channel provides a full-duplex
760 asynchronous/synchronous receiver and transmitter deriving an
761 operating frequency from the internal bus clock or an external clock.
762
Jagan Tekia73597a2016-10-08 18:00:08 +0530763config MXC_UART
764 bool "IMX serial port support"
Tom Rinieac76b82021-09-09 07:54:50 -0400765 depends on ARCH_MX31 || MX5 || MX6 || MX7 || IMX8M
Jagan Tekia73597a2016-10-08 18:00:08 +0530766 help
767 If you have a machine based on a Motorola IMX CPU you
768 can enable its onboard serial port by enabling this option.
769
Keng Soon Cheah755e2d02017-08-24 20:29:07 -0700770config NULLDEV_SERIAL
771 bool "Null serial device"
772 help
773 Select this to enable null serial device support. A null serial
774 device merely acts as a placeholder for a serial device and does
775 nothing for all it's operation.
776
Paul Thacker1dc42832016-01-28 15:30:14 +0530777config PIC32_SERIAL
778 bool "Support for Microchip PIC32 on-chip UART"
779 depends on DM_SERIAL && MACH_PIC32
780 default y
781 help
782 Support for the UART found on Microchip PIC32 SoC's.
783
Tom Rinidc172ee2022-12-04 09:39:03 -0500784config SYS_NS16550_SERIAL
785 bool "NS16550 UART or compatible legacy driver"
786 depends on !DM_SERIAL
787 select SYS_NS16550
788
789config SPL_SYS_NS16550_SERIAL
790 bool "NS16550 UART or compatible legacy driver in SPL"
791 depends on SPL && !SPL_DM_SERIAL
792 default y if SYS_NS16550_SERIAL || ARCH_SUNXI || ARCH_OMAP2PLUS
793 select SYS_NS16550
794
Tom Rini947eb7d2025-03-04 14:24:36 -0600795config TPL_SYS_NS16550_SERIAL
796 bool "NS16550 UART or compatible legacy driver in TPL"
797 depends on TPL && !TPL_DM_SERIAL
798 default y if SPL_SYS_NS16550_SERIAL
799 select SYS_NS16550
800
Thomas Choua6cec012015-11-19 21:48:14 +0800801config SYS_NS16550
802 bool "NS16550 UART or compatible"
803 help
804 Support NS16550 UART or compatible. This can be enabled in the
805 device tree with the correct input clock frequency. If the input
806 clock frequency is not defined in the device tree, the macro
Tom Rinidf6a2152022-11-16 13:10:28 -0500807 CFG_SYS_NS16550_CLK defined in a legacy board header file will
Thomas Choua6cec012015-11-19 21:48:14 +0800808 be used. It can be a constant or a function to get clock, eg,
809 get_serial_clock().
810
Simon Glassf8b1a242019-12-19 17:58:18 -0700811config NS16550_DYNAMIC
812 bool "Allow NS16550 to be configured at runtime"
Tom Rinidc172ee2022-12-04 09:39:03 -0500813 depends on SYS_NS16550
Simon Glassf8b1a242019-12-19 17:58:18 -0700814 default y if SYS_COREBOOT || SYS_SLIMBOOTLOADER
815 help
816 Enable this option to allow device-tree control of the driver.
817
818 Normally this driver is controlled by the following options:
819
Simon Glassf8b1a242019-12-19 17:58:18 -0700820 It is not a good practice for a driver to be statically configured,
821 since it prevents the same driver being used for different types of
822 UARTs in a system. This option avoids this problem at the cost of a
823 slightly increased code size.
824
Tom Rinidc172ee2022-12-04 09:39:03 -0500825config SYS_NS16550_MEM32
826 bool "If memory-mapped, 32bit access is needed for ns16550 register access"
827 depends on SYS_NS16550
828 help
829 If enabled, if memory-mapped, indicates that 32-bit access should be
830 used (instead of 8-bit) for register access.
831
832config SYS_NS16550_PORT_MAPPED
833 bool "Port I/O is used for ns16550 register access"
834 depends on SYS_NS16550
835 help
836 If enabled, port I/O is used for ns16550 register access. If not
837 enabled, then the UART is memory-mapped.
838
839config SYS_NS16550_REG_SIZE
840 int "ns16550 register width and endianness"
841 depends on SYS_NS16550_SERIAL || SPL_SYS_NS16550_SERIAL
842 range -4 4
843 default -4 if ARCH_OMAP2PLUS || ARCH_SUNXI
844 default 1
845 help
846 Indicates register width and also endianness. If positive, big-endian
847 access is used. If negative, little-endian is used.
848
849config SPL_NS16550_MIN_FUNCTIONS
850 bool "Only provide NS16550_init and NS16550_putc in SPL"
851 depends on SPL_SYS_NS16550_SERIAL && PPC
852 help
853 Enable this if you desire to only have use of the NS16550_init and
854 NS16550_putc functions for the serial driver located at
855 drivers/serial/ns16550.c. This option is useful for saving space for
856 already greatly restricted images, including but not limited to
857 NAND_SPL configurations.
858
Andy Shevchenkoc65a7fe2017-02-28 14:04:10 +0200859config INTEL_MID_SERIAL
860 bool "Intel MID platform UART support"
861 depends on DM_SERIAL && OF_CONTROL
862 depends on INTEL_MID
863 select SYS_NS16550
864 help
865 Select this to enable a UART for Intel MID platforms.
866 This uses the ns16550 driver as a library.
867
Alexander Graf65bfb422018-01-25 12:05:51 +0100868config PL011_SERIAL
869 bool "ARM PL011 driver"
870 depends on !DM_SERIAL
871 help
872 Select this to enable a UART for platforms using PL011.
873
Alexander Graf633ef892018-01-25 12:05:52 +0100874config PL01X_SERIAL
875 bool "ARM PL010 and PL011 driver"
876 depends on DM_SERIAL
877 help
878 Select this to enable a UART for platforms using PL010 or PL011.
879
Simon Glassb3068ad2016-07-04 11:58:24 -0600880config ROCKCHIP_SERIAL
881 bool "Rockchip on-chip UART support"
Johan Jonkere5adbb22022-04-09 18:55:14 +0200882 depends on DM_SERIAL
Johan Jonker40cb6612022-04-09 18:55:13 +0200883 select SYS_NS16550
Simon Glassb3068ad2016-07-04 11:58:24 -0600884 help
885 Select this to enable a debug UART for Rockchip devices when using
Johan Jonkere5adbb22022-04-09 18:55:14 +0200886 OF_PLATDATA (i.e. a compiled-in device tree replacemenmt).
Simon Glassb3068ad2016-07-04 11:58:24 -0600887 This uses the ns16550 driver, converting the platdata from of-platdata
888 to the ns16550 format.
889
Mark Kettenis3b9ad302021-02-12 23:22:18 +0100890config S5P_SERIAL
891 bool "Support for Samsung S5P UART"
Mark Kettenis835cb5d2021-10-23 16:58:04 +0200892 depends on ARCH_APPLE || ARCH_EXYNOS || ARCH_S5PC1XX
Mark Kettenis3b9ad302021-02-12 23:22:18 +0100893 default y
894 help
895 Select this to enable Samsung S5P UART support.
896
Stefan Bosch86a200a2022-12-18 12:25:33 +0000897config S5P4418_PL011_SERIAL
898 bool "Extended PL011 driver for S5P4418"
899 depends on DM_SERIAL && PL01X_SERIAL && ARCH_NEXELL
900 default y
901 help
902 Select this to enable support of the PL011 UARTs in the S5P4418 SOC.
903 With this driver the UART-clocks are set to the appropriate rate
904 (if not 'skip-init').
905
Simon Glass8579a512015-03-06 13:19:03 -0700906config SANDBOX_SERIAL
907 bool "Sandbox UART support"
Masahiro Yamadaa8318672015-08-28 20:14:21 +0900908 depends on SANDBOX
Sean Anderson85898852022-04-04 14:17:58 -0400909 imply SERIAL_PUTS
Simon Glass8579a512015-03-06 13:19:03 -0700910 help
911 Select this to enable a seral UART for sandbox. This is required to
912 operate correctly, otherwise you will see no serial output from
913 sandbox. The emulated UART will display to the console and console
914 input will be fed into the UART. This allows you to interact with
915 U-Boot.
916
917 The operation of the console is controlled by the -t command-line
918 flag. In raw mode, U-Boot sees all characters from the terminal
919 before they are processed, including Ctrl-C. In cooked mode, Ctrl-C
920 is processed by the terminal, and terminates U-Boot. Valid options
921 are:
922
923 -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot
924 -t raw Raw mode, Ctrl-C is processed by U-Boot
925 -t cooked Cooked mode, Ctrl-C terminates
926
Marek Vasut2b2e4832017-07-21 23:18:46 +0200927config SCIF_CONSOLE
928 bool "Renesas SCIF UART support"
Marek Vasut6468c4c2024-02-27 17:05:55 +0100929 depends on SH || ARCH_RENESAS
Marek Vasut2b2e4832017-07-21 23:18:46 +0200930 help
931 Select this to enable Renesas SCIF UART. To operate serial ports
Marek Vasutb1c0a752024-12-11 08:30:35 +0100932 on systems with R-Car or SH SoCs, say Y to this option. If unsure,
Marek Vasut2b2e4832017-07-21 23:18:46 +0200933 say N.
934
Tom Rini83038892022-03-30 18:07:21 -0400935choice
936 prompt "SCIF console port"
937 depends on SCIF_CONSOLE && (!DM_SERIAL || (SPL && !SPL_DM_SERIAL))
938
939config CONS_SCIF0
940 bool "SCIF0"
941
942config CONS_SCIF1
943 bool "SCIF1"
944
945config CONS_SCIF2
946 bool "SCIF2"
947
948config CONS_SCIF4
949 bool "SCIF4"
950
951config CONS_SCIFA0
952 bool "SCIFA0"
953
954endchoice
955
Tom Rinica57d3b2022-03-30 18:07:22 -0400956config SH_SCIF_CLK_FREQ
957 int "SCIF console clock frequency"
958 depends on SCIF_CONSOLE && (!DM_SERIAL || (SPL && !SPL_DM_SERIAL))
959 default 65000000
960
Sean Andersond4f131a2022-03-22 16:59:24 -0400961config SEMIHOSTING_SERIAL
962 bool "Semihosting UART support"
963 depends on SEMIHOSTING && !SERIAL_RX_BUFFER
964 help
965 Select this to enable a serial UART using semihosting. Special halt
966 instructions will be issued which an external debugger (such as a
967 JTAG emulator) may interpret. The debugger will display U-Boot's
968 console output on the host system.
969
970 Enable this option only if you are using a debugger which supports
971 semihosting. If you are not using a debugger, this driver will halt
972 the boot.
973
Masahiro Yamada4261c642014-10-23 22:26:11 +0900974config UNIPHIER_SERIAL
Masahiro Yamada563ee4c2015-05-29 17:30:01 +0900975 bool "Support for UniPhier on-chip UART"
Masahiro Yamadaa8318672015-08-28 20:14:21 +0900976 depends on ARCH_UNIPHIER
Masahiro Yamadadf5fda02016-08-25 19:00:37 +0900977 default y
Masahiro Yamada4261c642014-10-23 22:26:11 +0900978 help
Masahiro Yamada563ee4c2015-05-29 17:30:01 +0900979 If you have a UniPhier based board and want to use the on-chip
980 serial ports, say Y to this option. If unsure, say N.
Simon Glass1c32bdb2015-07-27 15:47:23 -0600981
Michal Simek93ce5052015-12-09 12:50:05 +0100982config XILINX_UARTLITE
983 bool "Xilinx Uarlite support"
Michal Simek3239d712020-08-24 14:41:51 +0200984 depends on DM_SERIAL
Michal Simek93ce5052015-12-09 12:50:05 +0100985 help
986 If you have a Xilinx based board and want to use the uartlite
987 serial ports, say Y to this option. If unsure, say N.
988
Beniamino Galvanid1037e42016-05-08 08:30:16 +0200989config MESON_SERIAL
990 bool "Support for Amlogic Meson UART"
991 depends on DM_SERIAL && ARCH_MESON
992 help
993 If you have an Amlogic Meson based board and want to use the on-chip
994 serial ports, say Y to this option. If unsure, say N.
995
Mateusz Kulikowski8aac6972016-03-31 23:12:14 +0200996config MSM_SERIAL
997 bool "Qualcomm on-chip UART"
998 depends on DM_SERIAL
999 help
1000 Support Data Mover UART used on Qualcomm Snapdragon SoCs.
1001 It should support all Qualcomm devices with UARTDM version 1.4,
1002 for example APQ8016 and MSM8916.
1003 Single baudrate is supported in current implementation (115200).
Stefan Roese027276a2016-05-17 16:36:00 +02001004
Dzmitry Sankouskif5be5c82021-10-17 13:44:27 +03001005config MSM_GENI_SERIAL
1006 bool "Qualcomm on-chip GENI UART"
1007 help
1008 Support UART based on Generic Interface (GENI) Serial Engine (SE),
1009 used on Qualcomm Snapdragon SoCs. Should support all qualcomm SOCs
1010 with Qualcomm Universal Peripheral (QUP) Wrapper cores,
1011 i.e. newer ones, starting from SDM845.
1012 Driver works in FIFO mode.
1013 Multiple baudrates supported.
1014
Marek Vasut8cc43682023-05-06 16:43:31 +02001015config MXS_AUART_SERIAL
1016 bool "MXS AUART"
1017 depends on DM_SERIAL
1018 help
1019 Support for Freescale i.MX23 / i.MX28 AUART or Application UART IP.
1020 This IP is present in the aforementioned SoCs, however this is not
1021 the IP used to drive the Debug UART port, for that see PL01X_SERIAL .
1022
Stefan Roese09e90762021-04-07 09:12:31 +02001023config OCTEON_SERIAL_BOOTCMD
1024 bool "MIPS Octeon PCI remote bootcmd input"
1025 depends on ARCH_OCTEON
1026 depends on DM_SERIAL
1027 select SYS_IS_IN_ENV
1028 select CONSOLE_MUX
1029 help
1030 This driver supports remote input over the PCIe bus from a host
1031 to U-Boot for entering commands. It is utilized by the host
1032 commands 'oct-remote-load' and 'oct-remote-bootcmd'.
1033
Stefan Roese01452252021-04-07 09:12:30 +02001034config OCTEON_SERIAL_PCIE_CONSOLE
1035 bool "MIPS Octeon PCIe remote console"
1036 depends on ARCH_OCTEON
1037 depends on (DM_SERIAL && DM_STDIO)
1038 select SYS_STDIO_DEREGISTER
1039 select SYS_CONSOLE_IS_IN_ENV
1040 select CONSOLE_MUX
1041 help
1042 This driver supports remote console over the PCIe bus when the
1043 Octeon is running in PCIe target mode. The host program
1044 'oct-remote-console' can be used to connect to this console.
1045 The console number will likely be 0 or 1.
1046
Lokesh Vutla42cb4b82018-08-27 15:55:24 +05301047config OMAP_SERIAL
1048 bool "Support for OMAP specific UART"
1049 depends on DM_SERIAL
Lokesh Vutla9bdec002018-08-27 15:57:08 +05301050 default y if (ARCH_OMAP2PLUS || ARCH_K3)
Lokesh Vutla42cb4b82018-08-27 15:55:24 +05301051 select SYS_NS16550
1052 help
1053 If you have an TI based SoC and want to use the on-chip serial
1054 port, say Y to this option. If unsure say N.
1055
Manivannan Sadhasivam01e47392018-06-14 23:38:38 +05301056config OWL_SERIAL
1057 bool "Actions Semi OWL UART"
1058 depends on DM_SERIAL && ARCH_OWL
1059 help
1060 If you have a Actions Semi OWL based board and want to use the on-chip
1061 serial port, say Y to this option. If unsure, say N.
1062 Single baudrate is supported in current implementation (115200).
1063
Anup Patelc0fe2842022-01-27 11:41:07 +05301064config HTIF_CONSOLE
1065 bool "RISC-V HTIF console support"
1066 depends on DM_SERIAL && 64BIT
1067 help
1068 Select this to enable host transfer interface (HTIF) based serial
1069 console. The HTIF device is quite common in RISC-V emulators and
1070 RISC-V ISS so this driver allows using U-Boot on such platforms.
1071
Anup Patel4b1d68f2018-12-15 11:35:15 +05301072config SIFIVE_SERIAL
1073 bool "SiFive UART support"
1074 depends on DM_SERIAL
1075 help
1076 This driver supports the SiFive UART. If unsure say N.
1077
Patrice Chotard42d742b2017-02-21 13:37:07 +01001078config STI_ASC_SERIAL
1079 bool "STMicroelectronics on-chip UART"
1080 depends on DM_SERIAL && ARCH_STI
1081 help
1082 Select this to enable Asynchronous Serial Controller available
1083 on STiH410 SoC. This is a basic implementation, it supports
1084 following baudrate 9600, 19200, 38400, 57600 and 115200.
1085
Patrice Chotard9e276502018-01-12 09:23:49 +01001086config STM32_SERIAL
Patrice Chotard72cefd52017-07-26 15:48:39 +02001087 bool "STMicroelectronics STM32 SoCs on-chip UART"
Patrick Delaunay85b53972018-03-12 10:46:10 +01001088 depends on DM_SERIAL && (STM32F4 || STM32F7 || STM32H7 || ARCH_STM32MP)
Patrice Chotard72cefd52017-07-26 15:48:39 +02001089 help
Patrick Delaunay85b53972018-03-12 10:46:10 +01001090 If you have a machine based on a STM32 F4, F7, H7 or MP1 SOC
1091 you can enable its onboard serial ports, say Y to this option.
Patrice Chotard3b2a14f2017-09-13 18:00:05 +02001092 If unsure, say N.
Patrice Chotard72cefd52017-07-26 15:48:39 +02001093
Michal Simekab754532017-11-06 09:16:05 +01001094config ZYNQ_SERIAL
1095 bool "Cadence (Xilinx Zynq) UART support"
Michal Simek3239d712020-08-24 14:41:51 +02001096 depends on DM_SERIAL
Michal Simekab754532017-11-06 09:16:05 +01001097 help
1098 This driver supports the Cadence UART. It is found e.g. in Xilinx
1099 Zynq/ZynqMP.
1100
developer90af58f2018-11-15 10:08:02 +08001101config MTK_SERIAL
1102 bool "MediaTek High-speed UART support"
1103 depends on DM_SERIAL
1104 help
1105 Select this to enable UART support for MediaTek High-speed UART
1106 devices. This driver uses driver model and requires a device
1107 tree binding to operate.
1108 The High-speed UART is compatible with the ns16550a UART and have
1109 its own high-speed registers.
1110
developere076b9e2020-11-12 16:36:05 +08001111config MT7620_SERIAL
1112 bool "UART driver for MediaTek MT7620 and earlier SoCs"
1113 depends on DM_SERIAL
1114 help
1115 Select this to enable UART support for MediaTek MT7620 and earlier
1116 SoCs. This driver uses driver model and requires a device tree
1117 binding to operate.
1118 The UART driver for MediaTek MT7620 and earlier SoCs is *NOT*
1119 compatible with the ns16550a UART.
1120
Christophe Leroy9ac4a542017-07-06 10:33:27 +02001121config MPC8XX_CONS
1122 bool "Console driver for MPC8XX"
Christophe Leroyb3510fb2018-03-16 17:20:41 +01001123 depends on MPC8xx
Christophe Leroy9ac4a542017-07-06 10:33:27 +02001124 default y
1125
Jim Liu1a2abf62022-04-19 13:32:21 +08001126config NPCM_SERIAL
1127 bool "Nuvoton NPCM UART driver"
1128 depends on DM_SERIAL
1129 help
1130 Select this to enable UART support for Nuvoton BMCs
1131 (NPCM7xx and NPCM8xx).
1132 The driver enables the onboard serial port with 8-N-1
1133 configuration.
1134
Peng Fan8162f8f2020-08-06 12:42:50 +03001135config XEN_SERIAL
1136 bool "XEN serial support"
1137 depends on XEN
1138 help
1139 If built without DM support, then requires Xen
1140 to be built with CONFIG_VERBOSE_DEBUG.
1141
Jiaxun Yang076c3a42024-06-18 14:56:06 +01001142config XTENSA_SEMIHOSTING_SERIAL
1143 bool "Xtensa Semihosting UART support"
1144 depends on DM_SERIAL
1145 depends on XTENSA_SEMIHOSTING
1146 imply SERIAL_PUTS
1147 help
1148 Select this to enable a serial UART using Xtensa semihosting.
1149
Christophe Leroy9ac4a542017-07-06 10:33:27 +02001150choice
1151 prompt "Console port"
1152 default 8xx_CONS_SMC1
1153 depends on MPC8XX_CONS
1154 help
1155 Depending on board, select one serial port
1156 (CONFIG_8xx_CONS_SMC1 or CONFIG_8xx_CONS_SMC2)
1157
1158config 8xx_CONS_SMC1
1159 bool "SMC1"
1160
1161config 8xx_CONS_SMC2
1162 bool "SMC2"
1163
1164endchoice
1165
1166config SYS_SMC_RXBUFLEN
1167 int "Console Rx buffer length"
1168 depends on MPC8XX_CONS
1169 default 1
1170 help
1171 With CONFIG_SYS_SMC_RXBUFLEN it is possible to define
1172 the maximum receive buffer length for the SMC.
1173 This option is actual only for 8xx possible.
1174 If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE
1175 must be defined, to setup the maximum idle timeout for
1176 the SMC.
1177
1178config SYS_MAXIDLE
1179 int "maximum idle timeout"
1180 depends on MPC8XX_CONS
1181 default 0
1182
1183config SYS_BRGCLK_PRESCALE
1184 int "BRG Clock Prescale"
1185 depends on MPC8XX_CONS
1186 default 1
1187
1188config SYS_SDSR
1189 hex "SDSR Value"
1190 depends on MPC8XX_CONS
1191 default 0x83
1192
1193config SYS_SDMR
1194 hex "SDMR Value"
1195 depends on MPC8XX_CONS
Tom Rinif18679c2023-08-02 11:09:43 -04001196 default 0x0
Christophe Leroy9ac4a542017-07-06 10:33:27 +02001197
Simon Glass388f78e2021-08-08 12:20:13 -06001198endif