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Thomas Chouc8a7ba92015-10-09 13:46:34 +08001menu "Timer Support"
2
3config TIMER
Bin Meng435ae762015-11-13 00:11:14 -08004 bool "Enable driver model for timer drivers"
Thomas Chouc8a7ba92015-10-09 13:46:34 +08005 depends on DM
6 help
Bin Meng435ae762015-11-13 00:11:14 -08007 Enable driver model for timer access. It uses the same API as
8 lib/time.c, but now implemented by the uclass. The first timer
Thomas Chouc8a7ba92015-10-09 13:46:34 +08009 will be used. The timer is usually a 32 bits free-running up
10 counter. There may be no real tick, and no timer interrupt.
11
Philipp Tomsiche9e5d9d2017-07-28 17:38:42 +020012config SPL_TIMER
13 bool "Enable driver model for timer drivers in SPL"
14 depends on TIMER && SPL
15 help
16 Enable support for timer drivers in SPL. These can be used to get
17 a timer value when in SPL, or perhaps for implementing a delay
18 function. This enables the drivers in drivers/timer as part of an
19 SPL build.
20
21config TPL_TIMER
22 bool "Enable driver model for timer drivers in TPL"
23 depends on TIMER && TPL
24 help
25 Enable support for timer drivers in TPL. These can be used to get
26 a timer value when in TPL, or perhaps for implementing a delay
27 function. This enables the drivers in drivers/timer as part of an
28 TPL build.
29
Simon Glass747093d2022-04-30 00:56:53 -060030config VPL_TIMER
31 bool "Enable driver model for timer drivers in VPL"
32 depends on TIMER && VPL
33 default y if TPL_TIMER
34 help
35 Enable support for timer drivers in VPL. These can be used to get
36 a timer value when in VPL, or perhaps for implementing a delay
37 function. This enables the drivers in drivers/timer as part of an
38 TPL build.
39
Simon Glassc95fec32016-02-24 09:14:49 -070040config TIMER_EARLY
41 bool "Allow timer to be used early in U-Boot"
42 depends on TIMER
Simon Glass97d20f62018-09-02 17:02:24 -060043 # initr_bootstage() requires a timer and is called before initr_dm()
44 # so only the early timer is available
45 default y if X86 && BOOTSTAGE
Simon Glassc95fec32016-02-24 09:14:49 -070046 help
47 In some cases the timer must be accessible before driver model is
48 active. Examples include when using CONFIG_TRACE to trace U-Boot's
49 execution before driver model is set up. Enable this option to
50 use an early timer. These functions must be supported by your timer
51 driver: timer_early_get_count() and timer_early_get_rate().
52
Tom Rini03de3052024-05-20 13:35:03 -060053config ADI_SC5XX_TIMER
54 bool "ADI ADSP-SC5xx Timer Support"
55 depends on TIMER && (SC57X || SC58X || SC59X || SC59X_64)
56 help
57 gptimer based timer support on ADI's ADSP-SC5xx platforms. Available
58 but not required on sc59x-64-based platforms (598 and similar).
59 Required on 32-bit platforms (sc57x, sc58x, sc594 and earlier).
60
Thomas Choua54915d2015-10-22 22:28:53 +080061config ALTERA_TIMER
Bin Meng435ae762015-11-13 00:11:14 -080062 bool "Altera timer support"
Thomas Choua54915d2015-10-22 22:28:53 +080063 depends on TIMER
64 help
Bin Meng435ae762015-11-13 00:11:14 -080065 Select this to enable a timer for Altera devices. Please find
Thomas Choua54915d2015-10-22 22:28:53 +080066 details on the "Embedded Peripherals IP User Guide" of Altera.
67
Sean Anderson7dbebeb2020-10-25 21:46:57 -040068config ANDES_PLMT_TIMER
Sean Anderson79b135f2020-10-25 21:46:56 -040069 bool
Yu Chien Peter Lin8a0d5f22023-09-29 12:03:07 +080070 depends on RISCV_MMODE
71 help
72 The Andes PLMT block holds memory-mapped mtime register
73 associated with timer tick.
74
75config SPL_ANDES_PLMT_TIMER
76 bool
77 depends on SPL_RISCV_MMODE
Sean Anderson79b135f2020-10-25 21:46:56 -040078 help
79 The Andes PLMT block holds memory-mapped mtime register
80 associated with timer tick.
81
Bin Meng73fe4112018-10-10 22:07:02 -070082config ARC_TIMER
83 bool "ARC timer support"
84 depends on TIMER && ARC && CLK
85 help
86 Select this to enable built-in ARC timers.
87 ARC cores may have up to 2 built-in timers: timer0 and timer1,
88 usually at least one of them exists. Either of them is supported
89 in U-Boot.
90
Stefan Herbrechtsmeierb7e07502022-08-05 08:16:28 +020091config ARM_TWD_TIMER
92 bool "ARM timer watchdog (TWD) timer support"
93 depends on TIMER && CLK
94 help
95 Select this to enable support for the ARM global timer watchdog timer.
96
Bin Meng73fe4112018-10-10 22:07:02 -070097config AST_TIMER
98 bool "Aspeed ast2400/ast2500 timer support"
99 depends on TIMER
100 default y if ARCH_ASPEED
101 help
102 Select this to enable timer for Aspeed ast2400/ast2500 devices.
103 This is a simple sys timer driver, it is compatible with lib/time.c,
104 but does not support any interrupts. Even though SoC has 8 hardware
105 counters, they are all treated as a single device by this driver.
106 This is mostly because they all share several registers which
107 makes it difficult to completely separate them.
108
109config ATCPIT100_TIMER
110 bool "ATCPIT100 timer support"
111 depends on TIMER
112 help
113 Select this to enable a ATCPIT100 timer which will be embedded
114 in AE3XX, AE250 boards.
115
Wenyou.Yang@microchip.com47edaea2017-08-15 17:40:26 +0800116config ATMEL_PIT_TIMER
117 bool "Atmel periodic interval timer support"
118 depends on TIMER
119 help
120 Select this to enable a periodic interval timer for Atmel devices,
121 it is designed to offer maximum accuracy and efficient management,
122 even for systems with long response time.
123
Eugen Hristev632422d2022-04-04 11:35:51 +0300124config SPL_ATMEL_PIT_TIMER
125 bool "Atmel periodic interval timer support in SPL"
126 depends on SPL_TIMER
127 help
128 Select this to enable a periodic interval timer for Atmel devices,
129 it is designed to offer maximum accuracy and efficient management,
130 even for systems with long response time.
131 Select this to be available in SPL.
132
Clément Léger70fb1ae2022-03-31 10:55:06 +0200133config ATMEL_TCB_TIMER
134 bool "Atmel timer counter support"
135 depends on TIMER
136 depends on ARCH_AT91
137 help
138 Select this to enable the use of the timer counter as a monotonic
139 counter.
140
Eugen Hristeve135d2c2022-04-04 11:35:50 +0300141config SPL_ATMEL_TCB_TIMER
142 bool "Atmel timer counter support in SPL"
143 depends on SPL_TIMER
144 depends on ARCH_AT91
145 help
146 Select this to enable the use of the timer counter as a monotonic
147 counter in SPL.
148
Michal Simek72c37d12018-04-17 13:40:46 +0200149config CADENCE_TTC_TIMER
150 bool "Cadence TTC (Triple Timer Counter)"
151 depends on TIMER
152 help
153 Enables support for the cadence ttc driver. This driver is present
154 on Xilinx Zynq and ZynqMP SoCs.
155
Marek Vasut66011a02018-08-18 15:58:32 +0200156config DESIGNWARE_APB_TIMER
157 bool "Designware APB Timer"
158 depends on TIMER
159 help
160 Enables support for the Designware APB Timer driver. This timer is
161 present on Altera SoCFPGA SoCs.
162
Sergei Antonov2c0bdca2023-02-13 20:34:36 +0300163config FTTMR010_TIMER
164 bool "Faraday Technology timer support"
165 depends on TIMER
166 help
167 Select this to enable support for the timer found on
168 devices using Faraday Technology's IP.
169
Nick Hawkinsb25913b2022-06-08 16:21:35 -0500170config GXP_TIMER
171 bool "HPE GXP Timer"
172 depends on TIMER
173 help
174 Enables support for the GXP Timer driver. This timer is
175 present on HPE GXP SoCs.
176
Bin Meng73fe4112018-10-10 22:07:02 -0700177config MPC83XX_TIMER
178 bool "MPC83xx timer support"
179 depends on TIMER
Thomas Chou9961a0b2015-10-30 15:35:52 +0800180 help
Bin Meng73fe4112018-10-10 22:07:02 -0700181 Select this to enable support for the timer found on
182 devices based on the MPC83xx family of SoCs.
Bin Meng7030f272015-11-13 00:11:24 -0800183
Marek Vasut4d0732b2019-05-04 17:30:58 +0200184config RENESAS_OSTM_TIMER
185 bool "Renesas RZ/A1 R7S72100 OSTM Timer"
186 depends on TIMER
187 help
188 Enables support for the Renesas OSTM Timer driver.
189 This timer is present on Renesas RZ/A1 R7S72100 SoCs.
190
Bin Meng5824bc62021-07-28 12:00:22 +0800191config X86_TSC_TIMER_FREQ
192 int "x86 TSC timer frequency in Hz"
Bin Meng6ce38362018-10-13 20:52:10 -0700193 depends on X86_TSC_TIMER
Bin Meng5824bc62021-07-28 12:00:22 +0800194 default 1000000000
Bin Meng6ce38362018-10-13 20:52:10 -0700195 help
Bin Meng5824bc62021-07-28 12:00:22 +0800196 Sets the estimated CPU frequency in Hz when TSC is used as the
Bin Meng6ce38362018-10-13 20:52:10 -0700197 early timer and the frequency can neither be calibrated via some
198 hardware ways, nor got from device tree at the time when device
199 tree is not available yet.
200
Stephan Gerhold057b6132020-01-04 18:45:15 +0100201config NOMADIK_MTU_TIMER
202 bool "Nomadik MTU Timer"
203 depends on TIMER
204 help
205 Enables support for the Nomadik Multi Timer Unit (MTU),
206 used in ST-Ericsson Ux500 SoCs.
207 The MTU provides 4 decrementing free-running timers.
208 At the moment, only the first timer is used by the driver.
209
Jim Liub789e4f2022-04-19 13:32:22 +0800210config NPCM_TIMER
211 bool "Nuvoton NPCM timer support"
212 depends on TIMER
213 help
214 Select this to enable a timer on Nuvoton NPCM SoCs.
215 NPCM timer module has 5 down-counting timers, only the first timer
216 is used to implement timer ops. No support for early timer and
217 boot timer.
218
Mugunthan V Ndadf3132015-12-24 16:08:07 +0530219config OMAP_TIMER
220 bool "Omap timer support"
221 depends on TIMER
222 help
223 Select this to enable an timer for Omap devices.
224
Michael Wallee9e73d72022-08-17 21:37:51 +0200225config ORION_TIMER
226 bool "Orion timer support"
227 depends on TIMER
Stefan Roese89fd0cc2022-09-15 16:20:37 +0200228 default y if ARCH_KIRKWOOD || (ARCH_MVEBU && ARMADA_32BIT)
229 select TIMER_EARLY if ARCH_MVEBU
Michael Wallee9e73d72022-08-17 21:37:51 +0200230 help
Stefan Roese89fd0cc2022-09-15 16:20:37 +0200231 Select this to enable an timer for Orion and Armada devices
232 like Armada XP etc.
Michael Wallee9e73d72022-08-17 21:37:51 +0200233
Bin Meng60262cd02018-12-12 06:12:27 -0800234config RISCV_TIMER
235 bool "RISC-V timer support"
236 depends on TIMER && RISCV
237 help
Sean Andersonc33efaf2020-09-28 10:52:21 -0400238 Select this to enable support for a generic RISC-V S-Mode timer
239 driver.
Bin Meng60262cd02018-12-12 06:12:27 -0800240
Bin Meng73fe4112018-10-10 22:07:02 -0700241config ROCKCHIP_TIMER
242 bool "Rockchip timer support"
maxims@google.com4697abe2017-01-18 13:44:55 -0800243 depends on TIMER
maxims@google.com4697abe2017-01-18 13:44:55 -0800244 help
Bin Meng73fe4112018-10-10 22:07:02 -0700245 Select this to enable support for the timer found on
246 Rockchip devices.
247
248config SANDBOX_TIMER
249 bool "Sandbox timer support"
250 depends on SANDBOX && TIMER
251 help
252 Select this to enable an emulated timer for sandbox. It gets
253 time from host os.
maxims@google.com4697abe2017-01-18 13:44:55 -0800254
William Zhang35751c72022-08-23 21:44:32 -0700255config ARM_GLOBAL_TIMER
256 bool "ARM Cortex A9 global timer support"
Patrice Chotard347cb2e2017-02-21 13:37:05 +0100257 depends on TIMER
William Zhang35751c72022-08-23 21:44:32 -0700258 depends on ARM
Patrice Chotard347cb2e2017-02-21 13:37:05 +0100259 default y if ARCH_STI
260 help
William Zhang35751c72022-08-23 21:44:32 -0700261 Select this to enable global timer found on ARM Cortex A9
262 based devices.
Patrice Chotard347cb2e2017-02-21 13:37:05 +0100263
Andre Przywara731d1082022-10-20 23:10:23 +0100264config SP804_TIMER
265 bool "ARM SP804 timer support"
266 depends on TIMER
267 help
268 ARM SP804 dual timer IP support
269
Patrice Chotard5120a082018-02-07 10:44:45 +0100270config STM32_TIMER
Bin Meng73fe4112018-10-10 22:07:02 -0700271 bool "STM32 timer support"
Patrice Chotard5120a082018-02-07 10:44:45 +0100272 depends on TIMER
273 help
274 Select this to enable support for the timer found on
275 STM32 devices.
276
Svyatoslav Ryheladf86902023-02-01 10:53:02 +0200277config TEGRA_TIMER
278 bool "Tegra timer support"
279 depends on TIMER
280 select TIMER_EARLY
281 help
282 Select this to enable support for the timer found on
283 Tegra devices.
284
Bin Meng73fe4112018-10-10 22:07:02 -0700285config X86_TSC_TIMER
286 bool "x86 Time-Stamp Counter (TSC) timer support"
287 depends on TIMER && X86
Mario Six2c217492018-08-06 10:23:38 +0200288 help
Bin Meng73fe4112018-10-10 22:07:02 -0700289 Select this to enable Time-Stamp Counter (TSC) timer for x86.
Mario Six2c217492018-08-06 10:23:38 +0200290
Simon Glass77dd7c62019-12-06 21:41:49 -0700291config X86_TSC_READ_BASE
292 bool "Read the TSC timer base on start-up"
293 depends on X86_TSC_TIMER
294 help
295 On x86 platforms the TSC timer tick starts at the value 0 on reset.
296 This it makes no sense to read the timer on boot and use that as the
297 base, since we will miss some time taken to load U-Boot, etc. This
298 delay is controlled by the SoC and we cannot reduce it, but for
299 bootstage we want to record the time since reset as accurately as
300 possible.
301
302 The only exception is when U-Boot is used as a secondary bootloader,
303 where this option should be enabled.
304
Simon Glass642e8482019-12-06 21:41:50 -0700305config TPL_X86_TSC_TIMER_NATIVE
306 bool "x86 TSC timer uses native calibration"
307 depends on TPL && X86_TSC_TIMER
308 help
309 Selects native timer calibration for TPL and don't include the other
310 methods in the code. This helps to reduce code size in TPL and works
311 on fairly modern Intel chips. Code-size reductions is about 700
312 bytes.
313
Ryder Leed3c36062018-11-15 10:07:56 +0800314config MTK_TIMER
315 bool "MediaTek timer support"
316 depends on TIMER
317 help
318 Select this to enable support for the timer found on
319 MediaTek devices.
320
Claudiu Bezneaed1b7262020-09-07 18:36:33 +0300321config MCHP_PIT64B_TIMER
322 bool "Microchip 64-bit periodic interval timer support"
323 depends on TIMER
324 help
325 Select this to enable support for Microchip 64-bit periodic
326 interval timer.
327
Giulio Benettif8c85732021-05-13 12:18:31 +0200328config IMX_GPT_TIMER
329 bool "NXP i.MX GPT timer support"
330 depends on TIMER
331 help
332 Select this to enable support for the timer found on
333 NXP i.MX devices.
334
Michal Simeka36d8672022-06-24 14:16:32 +0200335config XILINX_TIMER
336 bool "Xilinx timer support"
337 depends on TIMER
338 select REGMAP
Michal Simek728a86e2022-06-23 13:08:30 +0200339 select SPL_REGMAP if SPL
Michal Simeka36d8672022-06-24 14:16:32 +0200340 help
341 Select this to enable support for the timer found on
342 any Xilinx boards (axi timer).
343
Kuan Lim Leec2024262023-09-19 15:30:36 +0800344config STARFIVE_TIMER
345 bool "Starfive timer support"
346 depends on TIMER
347 help
348 Select this to enable support for the timer found on
349 Starfive SoC.
350
Thomas Chouc8a7ba92015-10-09 13:46:34 +0800351endmenu