summaryrefslogtreecommitdiff
path: root/plat/imx/common/include/sci/svc/pm/sci_pm_api.h
blob: 76ca5c4eae8b587c1c076b3fc2c6f34fc3dcca74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
/*
 * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

/*!
 * Header file containing the public API for the System Controller (SC)
 * Power Management (PM) function. This includes functions for power state
 * control, clock control, reset control, and wake-up event control.
 *
 * @addtogroup PM_SVC (SVC) Power Management Service
 *
 * Module for the Power Management (PM) service.
 *
 * @{
 */

#ifndef SCI_PM_API_H
#define SCI_PM_API_H

/* Includes */

#include <sci/sci_types.h>
#include <sci/svc/rm/sci_rm_api.h>

/* Defines */

/*!
 * @name Defines for type widths
 */
/*@{*/
#define SC_PM_POWER_MODE_W      2	/* Width of sc_pm_power_mode_t */
#define SC_PM_CLOCK_MODE_W      3	/* Width of sc_pm_clock_mode_t */
#define SC_PM_RESET_TYPE_W      2	/* Width of sc_pm_reset_type_t */
#define SC_PM_RESET_REASON_W    3	/* Width of sc_pm_reset_reason_t */
/*@}*/

/*!
 * @name Defines for clock indexes (sc_pm_clk_t)
 */
/*@{*/
/*@}*/

/*!
 * @name Defines for ALL parameters
 */
/*@{*/
#define SC_PM_CLK_ALL   UINT8_MAX	/* All clocks */
/*@}*/

/*!
 * @name Defines for sc_pm_power_mode_t
 */
/*@{*/
#define SC_PM_PW_MODE_OFF       0U	/* Power off */
#define SC_PM_PW_MODE_STBY      1U	/* Power in standby */
#define SC_PM_PW_MODE_LP        2U	/* Power in low-power */
#define SC_PM_PW_MODE_ON        3U	/* Power on */
/*@}*/

/*!
 * @name Defines for sc_pm_clk_t
 */
/*@{*/
#define SC_PM_CLK_SLV_BUS       0U	/* Slave bus clock */
#define SC_PM_CLK_MST_BUS       1U	/* Master bus clock */
#define SC_PM_CLK_PER           2U	/* Peripheral clock */
#define SC_PM_CLK_PHY           3U	/* Phy clock */
#define SC_PM_CLK_MISC          4U	/* Misc clock */
#define SC_PM_CLK_MISC0         0U	/* Misc 0 clock */
#define SC_PM_CLK_MISC1         1U	/* Misc 1 clock */
#define SC_PM_CLK_MISC2         2U	/* Misc 2 clock */
#define SC_PM_CLK_MISC3         3U	/* Misc 3 clock */
#define SC_PM_CLK_MISC4         4U	/* Misc 4 clock */
#define SC_PM_CLK_CPU           2U	/* CPU clock */
#define SC_PM_CLK_PLL           4U	/* PLL */
#define SC_PM_CLK_BYPASS        4U	/* Bypass clock */
/*@}*/

/*!
 * @name Defines for sc_pm_clk_mode_t
 */
/*@{*/
#define SC_PM_CLK_MODE_ROM_INIT        0U	/* Clock is initialized by ROM. */
#define SC_PM_CLK_MODE_OFF             1U	/* Clock is disabled */
#define SC_PM_CLK_MODE_ON              2U	/* Clock is enabled. */
#define SC_PM_CLK_MODE_AUTOGATE_SW     3U	/* Clock is in SW autogate mode */
#define SC_PM_CLK_MODE_AUTOGATE_HW     4U	/* Clock is in HW autogate mode */
#define SC_PM_CLK_MODE_AUTOGATE_SW_HW  5U	/* Clock is in SW-HW autogate mode */
/*@}*/

/*!
 * @name Defines for sc_pm_clk_parent_t
 */
/*@{*/
#define SC_PM_PARENT_XTAL              0U	/* Parent is XTAL. */
#define SC_PM_PARENT_PLL0              1U	/* Parent is PLL0 */
#define SC_PM_PARENT_PLL1              2U	/* Parent is PLL1 or PLL0/2 */
#define SC_PM_PARENT_PLL2              3U	/* Parent in PLL2 or PLL0/4 */
#define SC_PM_PARENT_BYPS              4U	/* Parent is a bypass clock. */
/*@}*/

/*!
 * @name Defines for sc_pm_reset_type_t
 */
/*@{*/
#define SC_PM_RESET_TYPE_COLD          0U	/* Cold reset */
#define SC_PM_RESET_TYPE_WARM          1U	/* Warm reset */
#define SC_PM_RESET_TYPE_BOARD         2U	/* Board reset */
/*@}*/

/*!
 * @name Defines for sc_pm_reset_cause_t
 */
/*@{*/
#define SC_PM_RESET_CAUSE_TEMP         0U	/* Reset due to temp panic alarm */
#define SC_PM_RESET_CAUSE_FAULT        1U	/* Reset due to fault exception */
#define SC_PM_RESET_CAUSE_IRQ          2U	/* Reset due to SCU reset IRQ */
#define SC_PM_RESET_CAUSE_WDOG         3U	/* Reset due to SW WDOG */
#define SC_PM_RESET_CAUSE_API          4U	/* Reset due to pm_reset() or monitor */
/*@}*/

/*!
 * @name Defines for sc_pm_reset_reason_t
 */
/*@{*/
#define SC_PM_RESET_REASON_POR         0U	/* Power on reset */
#define SC_PM_RESET_REASON_WARM        1U	/* Warm reset */
#define SC_PM_RESET_REASON_SW          2U	/* Software reset */
#define SC_PM_RESET_REASON_WDOG        3U	/* Watchdog reset */
#define SC_PM_RESET_REASON_LOCKUP      4U	/* Lockup reset */
#define SC_PM_RESET_REASON_TAMPER      5U	/* Tamper reset */
#define SC_PM_RESET_REASON_TEMP        6U	/* Temp reset */
#define SC_PM_RESET_REASON_LOW_VOLT    7U	/* Low voltage reset */
/*@}*/

/*!
 * @name Defines for sc_pm_sys_if_t
 */
/*@{*/
#define SC_PM_SYS_IF_INTERCONNECT       0U	/* System interconnect */
#define SC_PM_SYS_IF_MU                 1U	/* AP -> SCU message units */
#define SC_PM_SYS_IF_OCMEM              2U	/* On-chip memory (ROM/OCRAM) */
#define SC_PM_SYS_IF_DDR                3U	/* DDR memory */
/*@}*/

/*!
 * @name Defines for sc_pm_wake_src_t
 */
/*@{*/
#define SC_PM_WAKE_SRC_NONE             0U	/* No wake source, used for self-kill */
#define SC_PM_WAKE_SRC_SCU              1U	/* Wakeup from SCU to resume CPU (IRQSTEER & GIC powered down) */
#define SC_PM_WAKE_SRC_IRQSTEER         2U	/* Wakeup from IRQSTEER to resume CPU (GIC powered down) */
#define SC_PM_WAKE_SRC_IRQSTEER_GIC     3U	/* Wakeup from IRQSTEER+GIC to wake CPU  (GIC clock gated) */
#define SC_PM_WAKE_SRC_GIC              4U	/* Wakeup from GIC to wake CPU */
/*@}*/

/* Types */

/*!
 * This type is used to declare a power mode. Note resources only use
 * SC_PM_PW_MODE_OFF and SC_PM_PW_MODE_ON. The other modes are used only
 * as system power modes.
 */
typedef uint8_t sc_pm_power_mode_t;

/*!
 * This type is used to declare a clock.
 */
typedef uint8_t sc_pm_clk_t;

/*!
 * This type is used to declare a clock mode.
 */
typedef uint8_t sc_pm_clk_mode_t;

/*!
 * This type is used to declare the clock parent.
 */
typedef uint8_t sc_pm_clk_parent_t;

/*!
 * This type is used to declare clock rates.
 */
typedef uint32_t sc_pm_clock_rate_t;

/*!
 * This type is used to declare a desired reset type.
 */
typedef uint8_t sc_pm_reset_type_t;

/*!
 * This type is used to declare a desired reset type.
 */
typedef uint8_t sc_pm_reset_cause;

/*!
 * This type is used to declare a reason for a reset.
 */
typedef uint8_t sc_pm_reset_reason_t;

/*!
 * This type is used to specify a system-level interface to be power managed.
 */
typedef uint8_t sc_pm_sys_if_t;

/*!
 * This type is used to specify a wake source for CPU resources.
 */
typedef uint8_t sc_pm_wake_src_t;

/* Functions */

/*!
 * @name Power Functions
 * @{
 */

/*!
 * This function sets the system power mode. Only the owner of the
 * SC_R_SYSTEM resource can do this.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     mode        power mode to apply
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid mode,
 * - SC_ERR_NOACCESS if caller not the owner of SC_R_SYSTEM
 *
 * @see sc_pm_set_sys_power_mode().
 */
sc_err_t sc_pm_set_sys_power_mode(sc_ipc_t ipc, sc_pm_power_mode_t mode);

/*!
 * This function sets the power mode of a partition.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     pt          handle of partition
 * @param[in]     mode        power mode to apply
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid partition or mode,
 * - SC_ERR_NOACCESS if caller's partition is not the owner or
 *   parent of \a pt
 *
 * The power mode of the partitions is a max power any resource will
 * be set to. Calling this will result in all resources owned
 * by \a pt to have their power changed to the lower of \a mode or the
 * individual resource mode set using sc_pm_set_resource_power_mode().
 */
sc_err_t sc_pm_set_partition_power_mode(sc_ipc_t ipc, sc_rm_pt_t pt,
					sc_pm_power_mode_t mode);

/*!
 * This function gets the power mode of a partition.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     pt          handle of partition
 * @param[out]    mode        pointer to return power mode
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid partition
 */
sc_err_t sc_pm_get_sys_power_mode(sc_ipc_t ipc, sc_rm_pt_t pt,
				  sc_pm_power_mode_t *mode);

/*!
 * This function sets the power mode of a resource.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     mode        power mode to apply
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or mode,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner
 *   or parent of the owner
 *
 * This function will record the individual resource power mode
 * and change it if the requested mode is lower than or equal to the
 * partition power mode set with sc_pm_set_partition_power_mode().
 * In other words, the power mode of the resource will be the minimum
 * of the resource power mode and the partition power mode.
 *
 * Note some resources are still not accessible even when powered up if bus
 * transactions go through a fabric not powered up. Examples of this are
 * resources in display and capture subsystems which require the display
 * controller or the imaging subsytem to be powered up first.
 *
 * Not that resources are grouped into power domains by the underlying
 * hardware. If any resource in the domain is on, the entire power domain
 * will be on. Other power domains required to access the resource will
 * also be turned on. Clocks required to access the peripheral will be
 * turned on. Refer to the SoC RM for more info on power domains and access
 * infrastructure (bus fabrics, clock domains, etc.).
 */
sc_err_t sc_pm_set_resource_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
				       sc_pm_power_mode_t mode);

/*!
 * This function gets the power mode of a resource.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[out]    mode        pointer to return power mode
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Note only SC_PM_PW_MODE_OFF and SC_PM_PW_MODE_ON are valid. The value
 * returned does not reflect the power mode of the partition..
 */
sc_err_t sc_pm_get_resource_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
				       sc_pm_power_mode_t *mode);

/*!
 * This function requests the low power mode some of the resources
 * can enter based on their state. This API is only valid for the
 * following resources : SC_R_A53, SC_R_A53_0, SC_R_A53_1, SC_A53_2,
 * SC_A53_3, SC_R_A72, SC_R_A72_0, SC_R_A72_1, SC_R_CC1, SC_R_A35,
 * SC_R_A35_0, SC_R_A35_1, SC_R_A35_2, SC_R_A35_3.
 * For all other resources it will return SC_ERR_PARAM.
 * This function will set the low power mode the cores, cluster
 * and cluster associated resources will enter when all the cores
 * in a given cluster execute WFI
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     mode        power mode to apply
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 */
sc_err_t sc_pm_req_low_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
				  sc_pm_power_mode_t mode);

/*!
 * This function requests low-power mode entry for CPU/cluster
 * resources. This API is only valid for the following resources:
 * SC_R_A53, SC_R_A53_x, SC_R_A72, SC_R_A72_x, SC_R_A35, SC_R_A35_x,
 * SC_R_CCI. For all other resources it will return SC_ERR_PARAM.
 * For individual core resources, the specified power mode
 * and wake source will be applied after the core has entered
 * WFI.  For cluster resources, the specified power mode is
 * applied after all cores in the cluster have entered low-power mode.
 * For multicluster resources, the specified power mode is applied
 * after all clusters have reached low-power mode.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     mode        power mode to apply
 * @param[in]     wake_src    wake source for low-power exit
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 */
sc_err_t sc_pm_req_cpu_low_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
				      sc_pm_power_mode_t mode,
				      sc_pm_wake_src_t wake_src);

/*!
 * This function is used to set the resume address of a CPU.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the CPU resource
 * @param[in]     address     64-bit resume address
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or address,
 * - SC_ERR_NOACCESS if caller's partition is not the parent of the
 *   resource (CPU) owner
 */
sc_err_t sc_pm_set_cpu_resume_addr(sc_ipc_t ipc, sc_rsrc_t resource,
				   sc_faddr_t address);

/*!
 * This function is used to set parameters for CPU resume from
 * low-power mode.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the CPU resource
 * @param[in]     isPrimary   set SC_TRUE if primary wake CPU
 * @param[in]     address     64-bit resume address
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or address,
 * - SC_ERR_NOACCESS if caller's partition is not the parent of the
 *   resource (CPU) owner
 */
sc_err_t sc_pm_set_cpu_resume(sc_ipc_t ipc, sc_rsrc_t resource,
			      sc_bool_t isPrimary, sc_faddr_t address);

/*!
 * This function requests the power mode configuration for system-level
 * interfaces including messaging units, interconnect, and memories.  This API
 * is only valid for the following resources : SC_R_A53, SC_R_A72, and
 * SC_R_M4_x_PID_y.  For all other resources, it will return SC_ERR_PARAM.
 * The requested power mode will be captured and applied to system-level
 * resources as system conditions allow.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     sys_if      system-level interface to be configured
 * @param[in]     hpm         high-power mode for the system interface
 * @param[in]     lpm         low-power mode for the system interface
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 */
sc_err_t sc_pm_req_sys_if_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
				     sc_pm_sys_if_t sys_if,
				     sc_pm_power_mode_t hpm,
				     sc_pm_power_mode_t lpm);

/* @} */

/*!
 * @name Clock/PLL Functions
 * @{
 */

/*!
 * This function sets the rate of a resource's clock/PLL.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     clk         clock/PLL to affect
 * @param[in,out] rate        pointer to rate to set,
 *                            return actual rate
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or clock/PLL,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner
 *   or parent of the owner,
 * - SC_ERR_UNAVAILABLE if clock/PLL not applicable to this resource,
 * - SC_ERR_LOCKED if rate locked (usually because shared clock/PLL)
 *
 * Refer to the [Clock List](@ref CLOCKS) for valid clock/PLL values.
 */
sc_err_t sc_pm_set_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource,
			      sc_pm_clk_t clk, sc_pm_clock_rate_t *rate);

/*!
 * This function gets the rate of a resource's clock/PLL.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     clk         clock/PLL to affect
 * @param[out]    rate        pointer to return rate
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or clock/PLL,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner
 *   or parent of the owner,
 * - SC_ERR_UNAVAILABLE if clock/PLL not applicable to this resource
 *
 * Refer to the [Clock List](@ref CLOCKS) for valid clock/PLL values.
 */
sc_err_t sc_pm_get_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource,
			      sc_pm_clk_t clk, sc_pm_clock_rate_t *rate);

/*!
 * This function enables/disables a resource's clock.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     clk         clock to affect
 * @param[in]     enable      enable if SC_TRUE; otherwise disabled
 * @param[in]     autog       HW auto clock gating
 *
 * If \a resource is SC_R_ALL then all resources owned will be affected.
 * No error will be returned.
 *
 * If \a clk is SC_PM_CLK_ALL, then an error will be returned if any
 * of the available clocks returns an error.
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or clock,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner
 *   or parent of the owner,
 * - SC_ERR_UNAVAILABLE if clock not applicable to this resource
 *
 * Refer to the [Clock List](@ref CLOCKS) for valid clock values.
 */
sc_err_t sc_pm_clock_enable(sc_ipc_t ipc, sc_rsrc_t resource,
			    sc_pm_clk_t clk, sc_bool_t enable, sc_bool_t autog);

/*!
 * This function sets the parent of a resource's clock.
 * This function should only be called when the clock is disabled.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     clk         clock to affect
 * @param[in]     parent      New parent of the clock.
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or clock,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner
 *   or parent of the owner,
 * - SC_ERR_UNAVAILABLE if clock not applicable to this resource
 * - SC_ERR_BUSY if clock is currently enabled.
 * - SC_ERR_NOPOWER if resource not powered
 *
 * Refer to the [Clock List](@ref CLOCKS) for valid clock values.
 */
sc_err_t sc_pm_set_clock_parent(sc_ipc_t ipc, sc_rsrc_t resource,
				sc_pm_clk_t clk, sc_pm_clk_parent_t parent);

/*!
 * This function gets the parent of a resource's clock.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the resource
 * @param[in]     clk         clock to affect
 * @param[out]     parent     pointer to return parent of clock.
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or clock,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner
 *   or parent of the owner,
 * - SC_ERR_UNAVAILABLE if clock not applicable to this resource
 *
 * Refer to the [Clock List](@ref CLOCKS) for valid clock values.
 */
sc_err_t sc_pm_get_clock_parent(sc_ipc_t ipc, sc_rsrc_t resource,
				sc_pm_clk_t clk, sc_pm_clk_parent_t *parent);

/* @} */

/*!
 * @name Reset Functions
 * @{
 */

/*!
 * This function is used to reset the system. Only the owner of the
 * SC_R_SYSTEM resource can do this.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     type        reset type
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid type,
 * - SC_ERR_NOACCESS if caller not the owner of SC_R_SYSTEM
 *
 * If this function returns, then the reset did not occur due to an
 * invalid parameter.
 */
sc_err_t sc_pm_reset(sc_ipc_t ipc, sc_pm_reset_type_t type);

/*!
 * This function gets a caller's reset reason.
 *
 * @param[in]     ipc         IPC handle
 * @param[out]    reason      pointer to return reset reason
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 */
sc_err_t sc_pm_reset_reason(sc_ipc_t ipc, sc_pm_reset_reason_t *reason);

/*!
 * This function is used to boot a partition.
 *
 * @param[in]     ipc          IPC handle
 * @param[in]     pt           handle of partition to boot
 * @param[in]     resource_cpu ID of the CPU resource to start
 * @param[in]     boot_addr    64-bit boot address
 * @param[in]     resource_mu  ID of the MU that must be powered
 * @param[in]     resource_dev ID of the boot device that must be powered
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid partition, resource, or addr,
 * - SC_ERR_NOACCESS if caller's partition is not the parent of the
 *   partition to boot
 */
sc_err_t sc_pm_boot(sc_ipc_t ipc, sc_rm_pt_t pt,
		    sc_rsrc_t resource_cpu, sc_faddr_t boot_addr,
		    sc_rsrc_t resource_mu, sc_rsrc_t resource_dev);

/*!
 * This function is used to reboot the caller's partition.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     type        reset type
 *
 * If \a type is SC_PM_RESET_TYPE_COLD, then most peripherals owned by
 * the calling partition will be reset if possible. SC state (partitions,
 * power, clocks, etc.) is reset. The boot SW of the booting CPU must be
 * able to handle peripherals that that are not reset.
 *
 * If \a type is SC_PM_RESET_TYPE_WARM, then only the boot CPU is reset.
 * SC state (partitions, power, clocks, etc.) are NOT reset. The boot SW
 * of the booting CPU must be able to handle peripherals and SC state that
 * that are not reset.
 *
 * If \a type is SC_PM_RESET_TYPE_BOARD, then return with no action.
 *
 * If this function returns, then the reset did not occur due to an
 * invalid parameter.
 */
void sc_pm_reboot(sc_ipc_t ipc, sc_pm_reset_type_t type);

/*!
 * This function is used to reboot a partition.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     pt          handle of partition to reboot
 * @param[in]     type        reset type
 *
 * If \a type is SC_PM_RESET_TYPE_COLD, then most peripherals owned by
 * the calling partition will be reset if possible. SC state (partitions,
 * power, clocks, etc.) is reset. The boot SW of the booting CPU must be
 * able to handle peripherals that that are not reset.
 *
 * If \a type is SC_PM_RESET_TYPE_WARM, then only the boot CPU is reset.
 * SC state (partitions, power, clocks, etc.) are NOT reset. The boot SW
 * of the booting CPU must be able to handle peripherals and SC state that
 * that are not reset.
 *
 * If \a type is SC_PM_RESET_TYPE_BOARD, then return with no action.
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid partition or type
 * - SC_ERR_NOACCESS if caller's partition is not the parent of \a pt,
 *
 * Most peripherals owned by the partition will be reset if
 * possible. SC state (partitions, power, clocks, etc.) is reset. The
 * boot SW of the booting CPU must be able to handle peripherals that
 * that are not reset.
 */
sc_err_t sc_pm_reboot_partition(sc_ipc_t ipc, sc_rm_pt_t pt,
				sc_pm_reset_type_t type);

/*!
 * This function is used to start/stop a CPU.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    ID of the CPU resource
 * @param[in]     enable      start if SC_TRUE; otherwise stop
 * @param[in]     address     64-bit boot address
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_PARM if invalid resource or address,
 * - SC_ERR_NOACCESS if caller's partition is not the parent of the
 *   resource (CPU) owner
 */
sc_err_t sc_pm_cpu_start(sc_ipc_t ipc, sc_rsrc_t resource, sc_bool_t enable,
			 sc_faddr_t address);

/* @} */

#endif /* SCI_PM_API_H */

/**@}*/