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Masahiro Yamada0b11dbf2015-07-26 02:46:26 +09001#
2# Serial device configuration
3#
4
5menu "Serial drivers"
6
Hans de Goede8c458582015-08-08 17:45:18 +02007config REQUIRE_SERIAL_CONSOLE
8 bool "Require a serial port for console"
9 # Running without a serial console is not supported by the
10 # non-dm serial code
11 depends on DM_SERIAL
12 default y
13 help
14 Require a serial port for the console, and panic if none is found
15 during serial port initialization (default y). Set this to n on
16 boards which have no debug serial port whatsoever.
17
Simon Glass92c55b62015-12-13 21:36:58 -070018config SERIAL_PRESENT
19 bool "Provide a serial driver"
20 depends on DM_SERIAL
21 default y
22 help
23 In very space-constrained devices even the full UART driver is too
24 large. In this case the debug UART can still be used in some cases.
25 This option enables the full UART in U-Boot, so if is it disabled,
26 the full UART driver will be omitted, thus saving space.
27
28config SPL_SERIAL_PRESENT
29 bool "Provide a serial driver in SPL"
30 depends on DM_SERIAL
31 default y
32 help
33 In very space-constrained devices even the full UART driver is too
34 large. In this case the debug UART can still be used in some cases.
35 This option enables the full UART in SPL, so if is it disabled,
36 the full UART driver will be omitted, thus saving space.
37
Masahiro Yamadada333ae2014-10-23 22:26:09 +090038config DM_SERIAL
39 bool "Enable Driver Model for serial drivers"
40 depends on DM
41 help
Simon Glassf94a1be2015-02-05 21:41:35 -070042 Enable driver model for serial. This replaces
43 drivers/serial/serial.c with the serial uclass, which
44 implements serial_putc() etc. The uclass interface is
45 defined in include/serial.h.
Masahiro Yamadaff247b72014-10-23 22:26:11 +090046
Simon Glass2f964aa2015-01-26 18:27:07 -070047config DEBUG_UART
48 bool "Enable an early debug UART for debugging"
49 help
50 The debug UART is intended for use very early in U-Boot to debug
51 problems when an ICE or other debug mechanism is not available.
52
53 To use it you should:
54 - Make sure your UART supports this interface
55 - Enable CONFIG_DEBUG_UART
56 - Enable the CONFIG for your UART to tell it to provide this interface
57 (e.g. CONFIG_DEBUG_UART_NS16550)
58 - Define the required settings as needed (see below)
59 - Call debug_uart_init() before use
60 - Call debug_uart_putc() to output a character
61
62 Depending on your platform it may be possible to use this UART before
63 a stack is available.
64
65 If your UART does not support this interface you can probably add
66 support quite easily. Remember that you cannot use driver model and
67 it is preferred to use no stack.
68
69 You must not use this UART once driver model is working and the
70 serial drivers are up and running (done in serial_init()). Otherwise
71 the drivers may conflict and you will get strange output.
72
Simon Glass21d00432015-01-26 18:27:09 -070073choice
74 prompt "Select which UART will provide the debug UART"
75 depends on DEBUG_UART
Thomas Choub1e361b2015-11-19 21:48:03 +080076 default DEBUG_UART_NS16550
Simon Glass21d00432015-01-26 18:27:09 -070077
Thomas Chou220e8022015-10-23 07:36:37 +080078config DEBUG_UART_ALTERA_JTAGUART
79 bool "Altera JTAG UART"
80 help
81 Select this to enable a debug UART using the altera_jtag_uart driver.
82 You will need to provide parameters to make this work. The driver will
83 be available until the real driver model serial is running.
84
Thomas Chouda2f8382015-10-21 21:26:54 +080085config DEBUG_UART_ALTERA_UART
86 bool "Altera UART"
87 help
88 Select this to enable a debug UART using the altera_uart driver.
89 You will need to provide parameters to make this work. The driver will
90 be available until the real driver model serial is running.
91
Simon Glass21d00432015-01-26 18:27:09 -070092config DEBUG_UART_NS16550
93 bool "ns16550"
94 help
95 Select this to enable a debug UART using the ns16550 driver. You
96 will need to provide parameters to make this work. The driver will
97 be available until the real driver model serial is running.
98
Simon Glass275854b2015-08-04 12:33:40 -060099config DEBUG_EFI_CONSOLE
100 bool "EFI"
101 depends on EFI_APP
102 help
103 Select this to enable a debug console which calls back to EFI to
104 output to the console. This can be useful for early debugging of
105 U-Boot when running on top of EFI (Extensive Firmware Interface).
106 This is a type of BIOS used by PCs.
107
Simon Glassbf6e7022015-07-02 18:15:54 -0600108config DEBUG_UART_S5P
109 bool "Samsung S5P"
110 help
111 Select this to enable a debug UART using the serial_s5p driver. You
112 will need to provide parameters to make this work. The driver will
113 be available until the real driver-model serial is running.
114
Michal Simek4166ba32015-12-14 16:55:10 +0100115config DEBUG_UART_UARTLITE
116 bool "Xilinx Uartlite"
117 help
118 Select this to enable a debug UART using the serial_uartlite driver.
119 You will need to provide parameters to make this work. The driver will
120 be available until the real driver-model serial is running.
121
Simon Glassc54c0a42015-10-17 19:41:22 -0600122config DEBUG_UART_ZYNQ
123 bool "Xilinx Zynq"
124 help
Michal Simek6bf87da2015-12-01 14:29:34 +0100125 Select this to enable a debug UART using the serial_zynq driver. You
Simon Glassc54c0a42015-10-17 19:41:22 -0600126 will need to provide parameters to make this work. The driver will
127 be available until the real driver-model serial is running.
128
Francois Retiefe43ce3f2015-10-29 12:55:34 +0200129config DEBUG_UART_APBUART
130 depends on LEON3
131 bool "Gaisler APBUART"
132 help
133 Select this to enable a debug UART using the serial_leon3 driver. You
134 will need to provide parameters to make this work. The driver will
135 be available until the real driver model serial is running.
136
Sergey Temerkhanov19de8152015-10-14 09:54:24 -0700137config DEBUG_UART_PL010
138 bool "pl010"
139 help
140 Select this to enable a debug UART using the pl01x driver with the
141 PL010 UART type. You will need to provide parameters to make this
142 work. The driver will be available until the real driver model
143 serial is running.
144
145config DEBUG_UART_PL011
146 bool "pl011"
147 help
148 Select this to enable a debug UART using the pl01x driver with the
149 PL011 UART type. You will need to provide parameters to make this
150 work. The driver will be available until the real driver model
151 serial is running.
152
Simon Glass21d00432015-01-26 18:27:09 -0700153endchoice
154
Simon Glass2f964aa2015-01-26 18:27:07 -0700155config DEBUG_UART_BASE
156 hex "Base address of UART"
157 depends on DEBUG_UART
158 help
159 This is the base address of your UART for memory-mapped UARTs.
160
161 A default should be provided by your board, but if not you will need
162 to use the correct value here.
163
164config DEBUG_UART_CLOCK
165 int "UART input clock"
166 depends on DEBUG_UART
167 help
168 The UART input clock determines the speed of the internal UART
169 circuitry. The baud rate is derived from this by dividing the input
170 clock down.
171
172 A default should be provided by your board, but if not you will need
173 to use the correct value here.
174
Simon Glassdd0b0122015-02-27 22:06:25 -0700175config DEBUG_UART_SHIFT
176 int "UART register shift"
177 depends on DEBUG_UART
178 default 0 if DEBUG_UART
179 help
180 Some UARTs (notably ns16550) support different register layouts
181 where the registers are spaced either as bytes, words or some other
182 value. Use this value to specify the shift to use, where 0=byte
183 registers, 2=32-bit word registers, etc.
184
Simon Glass0e977bc2015-10-18 19:51:24 -0600185config DEBUG_UART_BOARD_INIT
186 bool "Enable board-specific debug UART init"
187 depends on DEBUG_UART
188 help
189 Some boards need to set things up before the debug UART can be used.
190 On these boards a call to debug_uart_init() is insufficient. When
191 this option is enabled, the function board_debug_uart_init() will
192 be called when debug_uart_init() is called. You can put any code
193 here that is needed to set up the UART ready for use, such as set
194 pin multiplexing or enable clocks.
195
Simon Glassc7fefcb2015-10-18 19:51:25 -0600196config DEBUG_UART_ANNOUNCE
197 bool "Show a message when the debug UART starts up"
198 depends on DEBUG_UART
199 help
200 Enable this option to show a message when the debug UART is ready
201 for use. You will see a message like "<debug_uart> " as soon as
202 U-Boot has the UART ready for use (i.e. your code calls
203 debug_uart_init()). This can be useful just as a check that
204 everything is working.
205
Sergey Temerkhanov19de8152015-10-14 09:54:24 -0700206config DEBUG_UART_SKIP_INIT
207 bool "Skip UART initialization"
208 help
209 Select this if the UART you want to use for debug output is already
210 initialized by the time U-Boot starts its execution.
211
Thomas Chou220e8022015-10-23 07:36:37 +0800212config ALTERA_JTAG_UART
213 bool "Altera JTAG UART support"
214 depends on DM_SERIAL
215 help
216 Select this to enable an JTAG UART for Altera devices.The JTAG UART
217 core implements a method to communicate serial character streams
218 between a host PC and a Qsys system on an Altera FPGA. Please find
219 details on the "Embedded Peripherals IP User Guide" of Altera.
220
221config ALTERA_JTAG_UART_BYPASS
222 bool "Bypass output when no connection"
223 depends on ALTERA_JTAG_UART
224 help
225 Bypass console output and keep going even if there is no JTAG
226 terminal connection with the host. The console output will resume
227 once the JTAG terminal is connected. Without the bypass, the console
228 output will wait forever until a JTAG terminal is connected. If you
229 not are sure, say Y.
230
Thomas Chouda2f8382015-10-21 21:26:54 +0800231config ALTERA_UART
232 bool "Altera UART support"
233 depends on DM_SERIAL
234 help
235 Select this to enable an UART for Altera devices. Please find
236 details on the "Embedded Peripherals IP User Guide" of Altera.
237
Bin Meng5ed07cf2016-01-13 19:39:00 -0800238config FSL_LPUART
239 bool "Freescale LPUART support"
240 help
241 Select this to enable a Low Power UART for Freescale VF610 and
242 QorIQ Layerscape devices.
243
Thomas Chou9e390032015-11-19 21:48:14 +0800244config SYS_NS16550
245 bool "NS16550 UART or compatible"
246 help
247 Support NS16550 UART or compatible. This can be enabled in the
248 device tree with the correct input clock frequency. If the input
249 clock frequency is not defined in the device tree, the macro
250 CONFIG_SYS_NS16550_CLK defined in a legacy board header file will
251 be used. It can be a constant or a function to get clock, eg,
252 get_serial_clock().
253
Simon Glassaf282242015-03-06 13:19:03 -0700254config SANDBOX_SERIAL
255 bool "Sandbox UART support"
Masahiro Yamada2ea65f32015-08-28 20:14:21 +0900256 depends on SANDBOX
Simon Glassaf282242015-03-06 13:19:03 -0700257 help
258 Select this to enable a seral UART for sandbox. This is required to
259 operate correctly, otherwise you will see no serial output from
260 sandbox. The emulated UART will display to the console and console
261 input will be fed into the UART. This allows you to interact with
262 U-Boot.
263
264 The operation of the console is controlled by the -t command-line
265 flag. In raw mode, U-Boot sees all characters from the terminal
266 before they are processed, including Ctrl-C. In cooked mode, Ctrl-C
267 is processed by the terminal, and terminates U-Boot. Valid options
268 are:
269
270 -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot
271 -t raw Raw mode, Ctrl-C is processed by U-Boot
272 -t cooked Cooked mode, Ctrl-C terminates
273
Masahiro Yamadaff247b72014-10-23 22:26:11 +0900274config UNIPHIER_SERIAL
Masahiro Yamadab6ef3a32015-05-29 17:30:01 +0900275 bool "Support for UniPhier on-chip UART"
Masahiro Yamada2ea65f32015-08-28 20:14:21 +0900276 depends on ARCH_UNIPHIER
Masahiro Yamadaff247b72014-10-23 22:26:11 +0900277 help
Masahiro Yamadab6ef3a32015-05-29 17:30:01 +0900278 If you have a UniPhier based board and want to use the on-chip
279 serial ports, say Y to this option. If unsure, say N.
Simon Glassdcfe4a52015-07-27 15:47:23 -0600280
Michal Simek54e24d32015-12-09 12:50:05 +0100281config XILINX_UARTLITE
282 bool "Xilinx Uarlite support"
283 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP)
284 help
285 If you have a Xilinx based board and want to use the uartlite
286 serial ports, say Y to this option. If unsure, say N.
287
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900288endmenu