blob: eba96f4a80d328b05cd2b6332b4550b176ca3061 [file] [log] [blame]
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
Masahiro Yamadada333ae2014-10-23 22:26:09 +090018config DM_SERIAL
19 bool "Enable Driver Model for serial drivers"
20 depends on DM
21 help
Simon Glassf94a1be2015-02-05 21:41:35 -070022 Enable driver model for serial. This replaces
23 drivers/serial/serial.c with the serial uclass, which
24 implements serial_putc() etc. The uclass interface is
25 defined in include/serial.h.
Masahiro Yamadaff247b72014-10-23 22:26:11 +090026
Simon Glass2f964aa2015-01-26 18:27:07 -070027config DEBUG_UART
28 bool "Enable an early debug UART for debugging"
29 help
30 The debug UART is intended for use very early in U-Boot to debug
31 problems when an ICE or other debug mechanism is not available.
32
33 To use it you should:
34 - Make sure your UART supports this interface
35 - Enable CONFIG_DEBUG_UART
36 - Enable the CONFIG for your UART to tell it to provide this interface
37 (e.g. CONFIG_DEBUG_UART_NS16550)
38 - Define the required settings as needed (see below)
39 - Call debug_uart_init() before use
40 - Call debug_uart_putc() to output a character
41
42 Depending on your platform it may be possible to use this UART before
43 a stack is available.
44
45 If your UART does not support this interface you can probably add
46 support quite easily. Remember that you cannot use driver model and
47 it is preferred to use no stack.
48
49 You must not use this UART once driver model is working and the
50 serial drivers are up and running (done in serial_init()). Otherwise
51 the drivers may conflict and you will get strange output.
52
Simon Glass21d00432015-01-26 18:27:09 -070053choice
54 prompt "Select which UART will provide the debug UART"
55 depends on DEBUG_UART
56
Thomas Chou220e8022015-10-23 07:36:37 +080057config DEBUG_UART_ALTERA_JTAGUART
58 bool "Altera JTAG UART"
59 help
60 Select this to enable a debug UART using the altera_jtag_uart driver.
61 You will need to provide parameters to make this work. The driver will
62 be available until the real driver model serial is running.
63
Thomas Chouda2f8382015-10-21 21:26:54 +080064config DEBUG_UART_ALTERA_UART
65 bool "Altera UART"
66 help
67 Select this to enable a debug UART using the altera_uart driver.
68 You will need to provide parameters to make this work. The driver will
69 be available until the real driver model serial is running.
70
Simon Glass21d00432015-01-26 18:27:09 -070071config DEBUG_UART_NS16550
72 bool "ns16550"
73 help
74 Select this to enable a debug UART using the ns16550 driver. You
75 will need to provide parameters to make this work. The driver will
76 be available until the real driver model serial is running.
77
Simon Glass275854b2015-08-04 12:33:40 -060078config DEBUG_EFI_CONSOLE
79 bool "EFI"
80 depends on EFI_APP
81 help
82 Select this to enable a debug console which calls back to EFI to
83 output to the console. This can be useful for early debugging of
84 U-Boot when running on top of EFI (Extensive Firmware Interface).
85 This is a type of BIOS used by PCs.
86
Simon Glassbf6e7022015-07-02 18:15:54 -060087config DEBUG_UART_S5P
88 bool "Samsung S5P"
89 help
90 Select this to enable a debug UART using the serial_s5p driver. You
91 will need to provide parameters to make this work. The driver will
92 be available until the real driver-model serial is running.
93
Simon Glassc54c0a42015-10-17 19:41:22 -060094config DEBUG_UART_ZYNQ
95 bool "Xilinx Zynq"
96 help
97 Select this to enable a debug UART using the serial_s5p driver. You
98 will need to provide parameters to make this work. The driver will
99 be available until the real driver-model serial is running.
100
Francois Retiefe43ce3f2015-10-29 12:55:34 +0200101config DEBUG_UART_APBUART
102 depends on LEON3
103 bool "Gaisler APBUART"
104 help
105 Select this to enable a debug UART using the serial_leon3 driver. You
106 will need to provide parameters to make this work. The driver will
107 be available until the real driver model serial is running.
108
Simon Glass21d00432015-01-26 18:27:09 -0700109endchoice
110
Simon Glass2f964aa2015-01-26 18:27:07 -0700111config DEBUG_UART_BASE
112 hex "Base address of UART"
113 depends on DEBUG_UART
114 help
115 This is the base address of your UART for memory-mapped UARTs.
116
117 A default should be provided by your board, but if not you will need
118 to use the correct value here.
119
120config DEBUG_UART_CLOCK
121 int "UART input clock"
122 depends on DEBUG_UART
123 help
124 The UART input clock determines the speed of the internal UART
125 circuitry. The baud rate is derived from this by dividing the input
126 clock down.
127
128 A default should be provided by your board, but if not you will need
129 to use the correct value here.
130
Simon Glassdd0b0122015-02-27 22:06:25 -0700131config DEBUG_UART_SHIFT
132 int "UART register shift"
133 depends on DEBUG_UART
134 default 0 if DEBUG_UART
135 help
136 Some UARTs (notably ns16550) support different register layouts
137 where the registers are spaced either as bytes, words or some other
138 value. Use this value to specify the shift to use, where 0=byte
139 registers, 2=32-bit word registers, etc.
140
Simon Glass0e977bc2015-10-18 19:51:24 -0600141config DEBUG_UART_BOARD_INIT
142 bool "Enable board-specific debug UART init"
143 depends on DEBUG_UART
144 help
145 Some boards need to set things up before the debug UART can be used.
146 On these boards a call to debug_uart_init() is insufficient. When
147 this option is enabled, the function board_debug_uart_init() will
148 be called when debug_uart_init() is called. You can put any code
149 here that is needed to set up the UART ready for use, such as set
150 pin multiplexing or enable clocks.
151
Simon Glassc7fefcb2015-10-18 19:51:25 -0600152config DEBUG_UART_ANNOUNCE
153 bool "Show a message when the debug UART starts up"
154 depends on DEBUG_UART
155 help
156 Enable this option to show a message when the debug UART is ready
157 for use. You will see a message like "<debug_uart> " as soon as
158 U-Boot has the UART ready for use (i.e. your code calls
159 debug_uart_init()). This can be useful just as a check that
160 everything is working.
161
Thomas Chou220e8022015-10-23 07:36:37 +0800162config ALTERA_JTAG_UART
163 bool "Altera JTAG UART support"
164 depends on DM_SERIAL
165 help
166 Select this to enable an JTAG UART for Altera devices.The JTAG UART
167 core implements a method to communicate serial character streams
168 between a host PC and a Qsys system on an Altera FPGA. Please find
169 details on the "Embedded Peripherals IP User Guide" of Altera.
170
171config ALTERA_JTAG_UART_BYPASS
172 bool "Bypass output when no connection"
173 depends on ALTERA_JTAG_UART
174 help
175 Bypass console output and keep going even if there is no JTAG
176 terminal connection with the host. The console output will resume
177 once the JTAG terminal is connected. Without the bypass, the console
178 output will wait forever until a JTAG terminal is connected. If you
179 not are sure, say Y.
180
Thomas Chouda2f8382015-10-21 21:26:54 +0800181config ALTERA_UART
182 bool "Altera UART support"
183 depends on DM_SERIAL
184 help
185 Select this to enable an UART for Altera devices. Please find
186 details on the "Embedded Peripherals IP User Guide" of Altera.
187
Simon Glass765a1b12015-08-30 16:55:19 -0600188config ROCKCHIP_SERIAL
189 bool "Rockchip on-chip UART support"
Masahiro Yamadad18f37c2015-09-29 12:32:03 +0900190 depends on ARCH_ROCKCHIP && DM_SERIAL
Simon Glass765a1b12015-08-30 16:55:19 -0600191 help
192 Select this to enable a debug UART for Rockchip devices. This uses
193 the ns16550 driver. You will need to #define CONFIG_SYS_NS16550 in
194 your board config header. The clock input is automatically set to
195 use the oscillator (24MHz).
196
Simon Glassaf282242015-03-06 13:19:03 -0700197config SANDBOX_SERIAL
198 bool "Sandbox UART support"
Masahiro Yamada2ea65f32015-08-28 20:14:21 +0900199 depends on SANDBOX
Simon Glassaf282242015-03-06 13:19:03 -0700200 help
201 Select this to enable a seral UART for sandbox. This is required to
202 operate correctly, otherwise you will see no serial output from
203 sandbox. The emulated UART will display to the console and console
204 input will be fed into the UART. This allows you to interact with
205 U-Boot.
206
207 The operation of the console is controlled by the -t command-line
208 flag. In raw mode, U-Boot sees all characters from the terminal
209 before they are processed, including Ctrl-C. In cooked mode, Ctrl-C
210 is processed by the terminal, and terminates U-Boot. Valid options
211 are:
212
213 -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot
214 -t raw Raw mode, Ctrl-C is processed by U-Boot
215 -t cooked Cooked mode, Ctrl-C terminates
216
Masahiro Yamadaff247b72014-10-23 22:26:11 +0900217config UNIPHIER_SERIAL
Masahiro Yamadab6ef3a32015-05-29 17:30:01 +0900218 bool "Support for UniPhier on-chip UART"
Masahiro Yamada2ea65f32015-08-28 20:14:21 +0900219 depends on ARCH_UNIPHIER
Masahiro Yamadaff247b72014-10-23 22:26:11 +0900220 help
Masahiro Yamadab6ef3a32015-05-29 17:30:01 +0900221 If you have a UniPhier based board and want to use the on-chip
222 serial ports, say Y to this option. If unsure, say N.
Simon Glassdcfe4a52015-07-27 15:47:23 -0600223
224config X86_SERIAL
225 bool "Support for 16550 serial port on x86 machines"
226 depends on X86
227 default y
228 help
229 Most x86 machines have a ns16550 UART or compatible. This can be
230 enabled in the device tree with the correct input clock frequency
231 provided (default 1843200). Enable this to obtain serial console
232 output.
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900233
234endmenu