xref: /openbmc/u-boot/drivers/serial/Kconfig (revision 1b965432)
1#
2# Serial device configuration
3#
4
5menu "Serial drivers"
6
7config BAUDRATE
8	int "Default baudrate"
9	default 115200
10	help
11	  Select a default baudrate, where "default" has a driver-specific
12	  meaning of either setting the baudrate for the early debug UART
13	  in the SPL stage (most drivers) or for choosing a default baudrate
14	  in the absence of an environment setting (serial_mxc.c).
15
16config REQUIRE_SERIAL_CONSOLE
17	bool "Require a serial port for console"
18	# Running without a serial console is not supported by the
19	# non-dm serial code
20	depends on DM_SERIAL
21	default y
22	help
23	  Require a serial port for the console, and panic if none is found
24	  during serial port initialization (default y). Set this to n on
25	  boards which have no debug serial port whatsoever.
26
27config SPECIFY_CONSOLE_INDEX
28	bool "Specify the port number used for console"
29	default y if !DM_SERIAL || (SPL && !SPL_DM_SERIAL) || \
30		(TPL && !TPL_DM_SERIAL)
31	help
32	  In various cases, we need to specify which of the UART devices that
33	  a board or SoC has available are to be used for the console device
34	  in U-Boot.
35
36config SERIAL_PRESENT
37	bool "Provide a serial driver"
38	depends on DM_SERIAL
39	default y
40	help
41	  In very space-constrained devices even the full UART driver is too
42	  large. In this case the debug UART can still be used in some cases.
43	  This option enables the full UART in U-Boot, so if is it disabled,
44	  the full UART driver will be omitted, thus saving space.
45
46config SPL_SERIAL_PRESENT
47	bool "Provide a serial driver in SPL"
48	depends on DM_SERIAL
49	default y
50	help
51	  In very space-constrained devices even the full UART driver is too
52	  large. In this case the debug UART can still be used in some cases.
53	  This option enables the full UART in SPL, so if is it disabled,
54	  the full UART driver will be omitted, thus saving space.
55
56# Logic to allow us to use the imply keyword to set what the default port
57# should be.  The default is otherwise 1.
58config CONS_INDEX_0
59	bool
60
61config CONS_INDEX_2
62	bool
63
64config CONS_INDEX_3
65	bool
66
67config CONS_INDEX_4
68	bool
69
70config CONS_INDEX_5
71	bool
72
73config CONS_INDEX_6
74	bool
75
76config CONS_INDEX
77	int "UART used for console"
78	depends on SPECIFY_CONSOLE_INDEX
79	range 0 6
80	default 0 if CONS_INDEX_0
81	default 2 if CONS_INDEX_2
82	default 3 if CONS_INDEX_3
83	default 4 if CONS_INDEX_4
84	default 5 if CONS_INDEX_5
85	default 6 if CONS_INDEX_6
86	default 1
87	help
88	  Set this to match the UART number of the serial console.
89
90config DM_SERIAL
91	bool "Enable Driver Model for serial drivers"
92	depends on DM
93	help
94	  Enable driver model for serial. This replaces
95	  drivers/serial/serial.c with the serial uclass, which
96	  implements serial_putc() etc. The uclass interface is
97	  defined in include/serial.h.
98
99config SERIAL_RX_BUFFER
100	bool "Enable RX buffer for serial input"
101	depends on DM_SERIAL
102	help
103	  Enable RX buffer support for the serial driver. This enables
104	  pasting longer strings, even when the RX FIFO of the UART is
105	  not big enough (e.g. 16 bytes on the normal NS16550).
106
107config SERIAL_RX_BUFFER_SIZE
108	int "RX buffer size"
109	depends on SERIAL_RX_BUFFER
110	default 256
111	help
112	  The size of the RX buffer (needs to be power of 2)
113
114config SERIAL_SEARCH_ALL
115	bool "Search for serial devices after default one failed"
116	depends on DM_SERIAL
117	help
118	  The serial subsystem only searches for a single serial device
119	  that was instantiated, but does not check whether it was probed
120	  correctly. With this option set, we make successful probing
121	  mandatory and search for fallback serial devices if the default
122	  device does not work.
123
124	  If unsure, say N.
125
126config SPL_DM_SERIAL
127	bool "Enable Driver Model for serial drivers in SPL"
128	depends on DM_SERIAL && SPL_DM
129	default y
130	help
131	  Enable driver model for serial in SPL. This replaces
132	  drivers/serial/serial.c with the serial uclass, which
133	  implements serial_putc() etc. The uclass interface is
134	  defined in include/serial.h.
135
136config TPL_DM_SERIAL
137	bool "Enable Driver Model for serial drivers in TPL"
138	depends on DM_SERIAL
139	default y if TPL && DM_SERIAL
140	help
141	  Enable driver model for serial in TPL. This replaces
142	  drivers/serial/serial.c with the serial uclass, which
143	  implements serial_putc() etc. The uclass interface is
144	  defined in include/serial.h.
145
146config DEBUG_UART
147	bool "Enable an early debug UART for debugging"
148	help
149	  The debug UART is intended for use very early in U-Boot to debug
150	  problems when an ICE or other debug mechanism is not available.
151
152	  To use it you should:
153	  - Make sure your UART supports this interface
154	  - Enable CONFIG_DEBUG_UART
155	  - Enable the CONFIG for your UART to tell it to provide this interface
156	        (e.g. CONFIG_DEBUG_UART_NS16550)
157	  - Define the required settings as needed (see below)
158	  - Call debug_uart_init() before use
159	  - Call debug_uart_putc() to output a character
160
161	  Depending on your platform it may be possible to use this UART before
162	  a stack is available.
163
164	  If your UART does not support this interface you can probably add
165	  support quite easily. Remember that you cannot use driver model and
166	  it is preferred to use no stack.
167
168	  You must not use this UART once driver model is working and the
169	  serial drivers are up and running (done in serial_init()). Otherwise
170	  the drivers may conflict and you will get strange output.
171
172choice
173	prompt "Select which UART will provide the debug UART"
174	depends on DEBUG_UART
175	default DEBUG_UART_NS16550
176
177config DEBUG_UART_ALTERA_JTAGUART
178	bool "Altera JTAG UART"
179	help
180	  Select this to enable a debug UART using the altera_jtag_uart driver.
181	  You will need to provide parameters to make this work. The driver will
182	  be available until the real driver model serial is running.
183
184config DEBUG_UART_ALTERA_UART
185	bool "Altera UART"
186	help
187	  Select this to enable a debug UART using the altera_uart driver.
188	  You will need to provide parameters to make this work. The driver will
189	  be available until the real driver model serial is running.
190
191config DEBUG_UART_AR933X
192	bool "QCA/Atheros ar933x"
193	depends on AR933X_UART
194	help
195	  Select this to enable a debug UART using the ar933x uart driver.
196	  You will need to provide parameters to make this work. The
197	  driver will be available until the real driver model serial is
198	  running.
199
200config DEBUG_ARC_SERIAL
201	bool "ARC UART"
202	depends on ARC_SERIAL
203	help
204	  Select this to enable a debug UART using the ARC UART driver.
205	  You will need to provide parameters to make this work. The
206	  driver will be available until the real driver model serial is
207	  running.
208
209config DEBUG_UART_ATMEL
210	bool "Atmel USART"
211	help
212	  Select this to enable a debug UART using the atmel usart driver. You
213	  will need to provide parameters to make this work. The driver will
214	  be available until the real driver-model serial is running.
215
216config DEBUG_UART_BCM6345
217	bool "BCM6345 UART"
218	depends on BCM6345_SERIAL
219	help
220	  Select this to enable a debug UART on BCM6345 SoCs. You
221	  will need to provide parameters to make this work. The driver will
222	  be available until the real driver model serial is running.
223
224config DEBUG_UART_NS16550
225	bool "ns16550"
226	help
227	  Select this to enable a debug UART using the ns16550 driver. You
228	  will need to provide parameters to make this work. The driver will
229	  be available until the real driver model serial is running.
230
231config DEBUG_EFI_CONSOLE
232	bool "EFI"
233	depends on EFI_APP
234	help
235	  Select this to enable a debug console which calls back to EFI to
236	  output to the console. This can be useful for early debugging of
237	  U-Boot when running on top of EFI (Extensive Firmware Interface).
238	  This is a type of BIOS used by PCs.
239
240config DEBUG_UART_S5P
241	bool "Samsung S5P"
242	help
243	  Select this to enable a debug UART using the serial_s5p driver. You
244	  will need to provide parameters to make this work. The driver will
245	  be available until the real driver-model serial is running.
246
247config DEBUG_UART_MESON
248	bool "Amlogic Meson"
249	depends on MESON_SERIAL
250	help
251	  Select this to enable a debug UART using the serial_meson driver. You
252	  will need to provide parameters to make this work. The driver will
253	  be available until the real driver-model serial is running.
254
255config DEBUG_UART_UARTLITE
256	bool "Xilinx Uartlite"
257	help
258	  Select this to enable a debug UART using the serial_uartlite driver.
259	  You will need to provide parameters to make this work. The driver will
260	  be available until the real driver-model serial is running.
261
262config DEBUG_UART_ARM_DCC
263	bool "ARM DCC"
264	help
265	  Select this to enable a debug UART using the ARM JTAG DCC port.
266	  The DCC port can be used for very early debugging and doesn't require
267	  any additional setting like address/baudrate/clock. On systems without
268	  any serial interface this is the easiest way how to get console.
269	  Every ARM core has own DCC port which is the part of debug interface.
270	  This port is available at least on ARMv6, ARMv7, ARMv8 and XScale
271	  architectures.
272
273config DEBUG_MVEBU_A3700_UART
274	bool "Marvell Armada 3700"
275	help
276	  Select this to enable a debug UART using the serial_mvebu driver. You
277	  will need to provide parameters to make this work. The driver will
278	  be available until the real driver-model serial is running.
279
280config DEBUG_UART_ZYNQ
281	bool "Xilinx Zynq"
282	help
283	  Select this to enable a debug UART using the serial_zynq driver. 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
287config DEBUG_UART_APBUART
288	depends on LEON3
289	bool "Gaisler APBUART"
290	help
291	  Select this to enable a debug UART using the serial_leon3 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
295config DEBUG_UART_PL010
296	bool "pl010"
297	help
298	  Select this to enable a debug UART using the pl01x driver with the
299	  PL010 UART type. You will need to provide parameters to make this
300	  work. The driver will be available until the real driver model
301	  serial is running.
302
303config DEBUG_UART_PL011
304	bool "pl011"
305	help
306	  Select this to enable a debug UART using the pl01x driver with the
307	  PL011 UART type. You will need to provide parameters to make this
308	  work. The driver will be available until the real driver model
309	  serial is running.
310
311config DEBUG_UART_PIC32
312	bool "Microchip PIC32"
313	depends on PIC32_SERIAL
314	help
315	  Select this to enable a debug UART using the serial_pic32 driver. You
316	  will need to provide parameters to make this work. The driver will
317	  be available until the real driver model serial is running.
318
319config DEBUG_UART_MXC
320	bool "IMX Serial port"
321	depends on MXC_UART
322	help
323	  Select this to enable a debug UART using the serial_mxc driver. You
324	  will need to provide parameters to make this work. The driver will
325	  be available until the real driver model serial is running.
326
327config DEBUG_UART_STM32
328	bool "STMicroelectronics STM32"
329	depends on STM32_SERIAL
330	help
331	  Select this to enable a debug UART using the serial_stm32 driver
332	  You will need to provide parameters to make this work.
333	  The driver will be available until the real driver model
334	  serial is running.
335
336config DEBUG_UART_UNIPHIER
337	bool "UniPhier on-chip UART"
338	depends on ARCH_UNIPHIER
339	help
340	  Select this to enable a debug UART using the UniPhier on-chip UART.
341	  You will need to provide DEBUG_UART_BASE to make this work.  The
342	  driver will be available until the real driver-model serial is
343	  running.
344
345config DEBUG_UART_OMAP
346	bool "OMAP uart"
347	help
348	  Select this to enable a debug UART using the omap ns16550 driver.
349	  You will need to provide parameters to make this work. The driver
350	  will be available until the real driver model serial is running.
351
352endchoice
353
354config DEBUG_UART_BASE
355	hex "Base address of UART"
356	depends on DEBUG_UART
357	help
358	  This is the base address of your UART for memory-mapped UARTs.
359
360	  A default should be provided by your board, but if not you will need
361	  to use the correct value here.
362
363config DEBUG_UART_CLOCK
364	int "UART input clock"
365	depends on DEBUG_UART
366	help
367	  The UART input clock determines the speed of the internal UART
368	  circuitry. The baud rate is derived from this by dividing the input
369	  clock down.
370
371	  A default should be provided by your board, but if not you will need
372	  to use the correct value here.
373
374config DEBUG_UART_SHIFT
375	int "UART register shift"
376	depends on DEBUG_UART
377	default 0 if DEBUG_UART
378	help
379	  Some UARTs (notably ns16550) support different register layouts
380	  where the registers are spaced either as bytes, words or some other
381	  value. Use this value to specify the shift to use, where 0=byte
382	  registers, 2=32-bit word registers, etc.
383
384config DEBUG_UART_BOARD_INIT
385	bool "Enable board-specific debug UART init"
386	depends on DEBUG_UART
387	help
388	  Some boards need to set things up before the debug UART can be used.
389	  On these boards a call to debug_uart_init() is insufficient. When
390	  this option is enabled, the function board_debug_uart_init() will
391	  be called when debug_uart_init() is called. You can put any code
392	  here that is needed to set up the UART ready for use, such as set
393	  pin multiplexing or enable clocks.
394
395config DEBUG_UART_ANNOUNCE
396	bool "Show a message when the debug UART starts up"
397	depends on DEBUG_UART
398	help
399	  Enable this option to show a message when the debug UART is ready
400	  for use. You will see a message like "<debug_uart> " as soon as
401	  U-Boot has the UART ready for use (i.e. your code calls
402	  debug_uart_init()). This can be useful just as a check that
403	  everything is working.
404
405config DEBUG_UART_SKIP_INIT
406	bool "Skip UART initialization"
407	help
408	  Select this if the UART you want to use for debug output is already
409	  initialized by the time U-Boot starts its execution.
410
411config ALTERA_JTAG_UART
412	bool "Altera JTAG UART support"
413	depends on DM_SERIAL
414	help
415	  Select this to enable an JTAG UART for Altera devices.The JTAG UART
416	  core implements a method to communicate serial character streams
417	  between a host PC and a Qsys system on an Altera FPGA. Please find
418	  details on the "Embedded Peripherals IP User Guide" of Altera.
419
420config ALTERA_JTAG_UART_BYPASS
421	bool "Bypass output when no connection"
422	depends on ALTERA_JTAG_UART
423	help
424	  Bypass console output and keep going even if there is no JTAG
425	  terminal connection with the host. The console output will resume
426	  once the JTAG terminal is connected. Without the bypass, the console
427	  output will wait forever until a JTAG terminal is connected. If you
428	  not are sure, say Y.
429
430config ALTERA_UART
431	bool "Altera UART support"
432	depends on DM_SERIAL
433	help
434	  Select this to enable an UART for Altera devices. Please find
435	  details on the "Embedded Peripherals IP User Guide" of Altera.
436
437config AR933X_UART
438	bool "QCA/Atheros ar933x UART support"
439	depends on DM_SERIAL && SOC_AR933X
440	help
441	  Select this to enable UART support for QCA/Atheros ar933x
442	  devices. This driver uses driver model and requires a device
443	  tree binding to operate, please refer to the document at
444	  doc/device-tree-bindings/serial/qca,ar9330-uart.txt.
445
446config ARC_SERIAL
447	bool "ARC UART support"
448	depends on DM_SERIAL
449	help
450	  Select this to enable support for ARC UART now typically
451	  only used in Synopsys DesignWare ARC simulators like nSIM.
452
453config ATMEL_USART
454	bool "Atmel USART support"
455	help
456	  Select this to enable USART support for Atmel SoCs. It can be
457	  configured in the device tree, and input clock frequency can
458	  be got from the clk node.
459
460config BCM283X_MU_SERIAL
461	bool "Support for BCM283x Mini-UART"
462	depends on DM_SERIAL && ARCH_BCM283X
463	default y
464	help
465	  Select this to enable Mini-UART support on BCM283X family of SoCs.
466
467config BCM283X_PL011_SERIAL
468	bool "Support for BCM283x PL011 UART"
469	depends on PL01X_SERIAL && ARCH_BCM283X
470	default y
471	help
472	  Select this to enable an overriding PL011 driver for BCM283X SoCs
473	  that supports automatic disable, so that it only gets used when
474	  the UART is actually muxed.
475
476config BCM6345_SERIAL
477	bool "Support for BCM6345 UART"
478	depends on DM_SERIAL && ARCH_BMIPS
479	help
480	  Select this to enable UART on BCM6345 SoCs.
481
482config FSL_LINFLEXUART
483	bool "Freescale Linflex UART support"
484	depends on DM_SERIAL
485	help
486	  Select this to enable the Linflex serial module found on some
487	  NXP SoCs like S32V234.
488
489config FSL_LPUART
490	bool "Freescale LPUART support"
491	help
492	  Select this to enable a Low Power UART for Freescale VF610 and
493	  QorIQ Layerscape devices.
494
495config MVEBU_A3700_UART
496	bool "UART support for Armada 3700"
497	default n
498	help
499	  Choose this option to add support for UART driver on the Marvell
500	  Armada 3700 SoC. The base address is configured via DT.
501
502config MXC_UART
503	bool "IMX serial port support"
504	depends on MX5 || MX6
505	help
506	  If you have a machine based on a Motorola IMX CPU you
507	  can enable its onboard serial port by enabling this option.
508
509config NULLDEV_SERIAL
510	bool "Null serial device"
511	help
512	  Select this to enable null serial device support. A null serial
513	  device merely acts as a placeholder for a serial device and does
514	  nothing for all it's operation.
515
516config PIC32_SERIAL
517	bool "Support for Microchip PIC32 on-chip UART"
518	depends on DM_SERIAL && MACH_PIC32
519	default y
520	help
521	  Support for the UART found on Microchip PIC32 SoC's.
522
523config SYS_NS16550
524	bool "NS16550 UART or compatible"
525	help
526	  Support NS16550 UART or compatible. This can be enabled in the
527	  device tree with the correct input clock frequency. If the input
528	  clock frequency is not defined in the device tree, the macro
529	  CONFIG_SYS_NS16550_CLK defined in a legacy board header file will
530	  be used. It can be a constant or a function to get clock, eg,
531	  get_serial_clock().
532
533config INTEL_MID_SERIAL
534	bool "Intel MID platform UART support"
535	depends on DM_SERIAL && OF_CONTROL
536	depends on INTEL_MID
537	select SYS_NS16550
538	help
539	  Select this to enable a UART for Intel MID platforms.
540	  This uses the ns16550 driver as a library.
541
542config PL010_SERIAL
543	bool "ARM PL010 driver"
544	depends on !DM_SERIAL
545	help
546	  Select this to enable a UART for platforms using PL010.
547
548config PL011_SERIAL
549	bool "ARM PL011 driver"
550	depends on !DM_SERIAL
551	help
552	  Select this to enable a UART for platforms using PL011.
553
554config PL01X_SERIAL
555	bool "ARM PL010 and PL011 driver"
556	depends on DM_SERIAL
557	help
558	  Select this to enable a UART for platforms using PL010 or PL011.
559
560config ROCKCHIP_SERIAL
561	bool "Rockchip on-chip UART support"
562	depends on DM_SERIAL && SPL_OF_PLATDATA
563	help
564	  Select this to enable a debug UART for Rockchip devices when using
565	  CONFIG_SPL_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt).
566	  This uses the ns16550 driver, converting the platdata from of-platdata
567	  to the ns16550 format.
568
569config SANDBOX_SERIAL
570	bool "Sandbox UART support"
571	depends on SANDBOX
572	help
573	  Select this to enable a seral UART for sandbox. This is required to
574	  operate correctly, otherwise you will see no serial output from
575	  sandbox. The emulated UART will display to the console and console
576	  input will be fed into the UART. This allows you to interact with
577	  U-Boot.
578
579	  The operation of the console is controlled by the -t command-line
580	  flag. In raw mode, U-Boot sees all characters from the terminal
581	  before they are processed, including Ctrl-C. In cooked mode, Ctrl-C
582	  is processed by the terminal, and terminates U-Boot. Valid options
583	  are:
584
585	     -t raw-with-sigs	Raw mode, Ctrl-C will terminate U-Boot
586	     -t raw		Raw mode, Ctrl-C is processed by U-Boot
587	     -t cooked		Cooked mode, Ctrl-C terminates
588
589config SCIF_CONSOLE
590	bool "Renesas SCIF UART support"
591	depends on SH || ARCH_RMOBILE
592	help
593	  Select this to enable Renesas SCIF UART. To operate serial ports
594	  on systems with RCar or SH SoCs, say Y to this option. If unsure,
595	  say N.
596
597config UNIPHIER_SERIAL
598	bool "Support for UniPhier on-chip UART"
599	depends on ARCH_UNIPHIER
600	default y
601	help
602	  If you have a UniPhier based board and want to use the on-chip
603	  serial ports, say Y to this option. If unsure, say N.
604
605config XILINX_UARTLITE
606	bool "Xilinx Uarlite support"
607	depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx)
608	help
609	  If you have a Xilinx based board and want to use the uartlite
610	  serial ports, say Y to this option. If unsure, say N.
611
612config MESON_SERIAL
613	bool "Support for Amlogic Meson UART"
614	depends on DM_SERIAL && ARCH_MESON
615	help
616	  If you have an Amlogic Meson based board and want to use the on-chip
617	  serial ports, say Y to this option. If unsure, say N.
618
619config MSM_SERIAL
620	bool "Qualcomm on-chip UART"
621	depends on DM_SERIAL
622	help
623	  Support Data Mover UART used on Qualcomm Snapdragon SoCs.
624	  It should support all Qualcomm devices with UARTDM version 1.4,
625	  for example APQ8016 and MSM8916.
626	  Single baudrate is supported in current implementation (115200).
627
628config OMAP_SERIAL
629	bool "Support for OMAP specific UART"
630	depends on DM_SERIAL
631	default y if (ARCH_OMAP2PLUS || ARCH_K3)
632	select SYS_NS16550
633	help
634	  If you have an TI based SoC and want to use the on-chip serial
635	  port, say Y to this option. If unsure say N.
636
637config OWL_SERIAL
638	bool "Actions Semi OWL UART"
639	depends on DM_SERIAL && ARCH_OWL
640	help
641	  If you have a Actions Semi OWL based board and want to use the on-chip
642	  serial port, say Y to this option. If unsure, say N.
643	  Single baudrate is supported in current implementation (115200).
644
645config PXA_SERIAL
646	bool "PXA serial port support"
647	help
648	  If you have a machine based on a Marvell XScale PXA2xx CPU you
649	  can enable its onboard serial ports by enabling this option.
650
651config STI_ASC_SERIAL
652	bool "STMicroelectronics on-chip UART"
653	depends on DM_SERIAL && ARCH_STI
654	help
655	  Select this to enable Asynchronous Serial Controller available
656	  on STiH410 SoC. This is a basic implementation,  it supports
657	  following baudrate 9600, 19200, 38400, 57600 and 115200.
658
659config STM32_SERIAL
660	bool "STMicroelectronics STM32 SoCs on-chip UART"
661	depends on DM_SERIAL && (STM32F4 || STM32F7 || STM32H7 || ARCH_STM32MP)
662	help
663	  If you have a machine based on a STM32 F4, F7, H7 or MP1 SOC
664	  you can enable its onboard serial ports, say Y to this option.
665	  If unsure, say N.
666
667config ZYNQ_SERIAL
668	bool "Cadence (Xilinx Zynq) UART support"
669	depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_ZYNQMP_R5)
670	help
671	  This driver supports the Cadence UART. It is found e.g. in Xilinx
672	  Zynq/ZynqMP.
673
674config MPC8XX_CONS
675	bool "Console driver for MPC8XX"
676	depends on MPC8xx
677	default y
678
679choice
680	prompt "Console port"
681	default 8xx_CONS_SMC1
682	depends on MPC8XX_CONS
683	help
684	  Depending on board, select one serial port
685	  (CONFIG_8xx_CONS_SMC1 or CONFIG_8xx_CONS_SMC2)
686
687config 8xx_CONS_SMC1
688	bool "SMC1"
689
690config 8xx_CONS_SMC2
691	bool "SMC2"
692
693endchoice
694
695config SYS_SMC_RXBUFLEN
696	int "Console Rx buffer length"
697	depends on MPC8XX_CONS
698	default 1
699	help
700	  With CONFIG_SYS_SMC_RXBUFLEN it is possible to define
701	  the maximum receive buffer length for the SMC.
702	  This option is actual only for 8xx possible.
703	  If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE
704	  must be defined, to setup the maximum idle timeout for
705	  the SMC.
706
707config SYS_MAXIDLE
708	int "maximum idle timeout"
709	depends on MPC8XX_CONS
710	default 0
711
712config SYS_BRGCLK_PRESCALE
713	int "BRG Clock Prescale"
714	depends on MPC8XX_CONS
715	default 1
716
717config SYS_SDSR
718	hex "SDSR Value"
719	depends on MPC8XX_CONS
720	default 0x83
721
722config SYS_SDMR
723	hex "SDMR Value"
724	depends on MPC8XX_CONS
725	default 0
726
727endmenu
728